diff --git a/app/code/Magento/Backend/Block/Template.php b/app/code/Magento/Backend/Block/Template.php
index 1bcd3033035dc0bf2de89782ad8972b8236e0d96..45d3830793e116f8d7029b4ae5c87ca80a83f280 100644
--- a/app/code/Magento/Backend/Block/Template.php
+++ b/app/code/Magento/Backend/Block/Template.php
@@ -70,17 +70,12 @@ class Template extends \Magento\Framework\View\Element\Template
      *
      * @param string $moduleName Full module name
      * @return boolean
+     * @deprecated
+     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
     public function isOutputEnabled($moduleName = null)
     {
-        if ($moduleName === null) {
-            $moduleName = $this->getModuleName();
-        }
-
-        return !$this->_scopeConfig->isSetFlag(
-            'advanced/modules_disable_output/' . $moduleName,
-            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
-        );
+        return true;
     }
 
     /**
diff --git a/app/code/Magento/Backend/etc/adminhtml/system.xml b/app/code/Magento/Backend/etc/adminhtml/system.xml
index 813a097ea6bf3ca2e615f0848619409c61f2dd9f..fc6c8df551913f5ad34d9875bc7e0e9173424681 100644
--- a/app/code/Magento/Backend/etc/adminhtml/system.xml
+++ b/app/code/Magento/Backend/etc/adminhtml/system.xml
@@ -16,7 +16,7 @@
         <tab id="advanced" translate="label" sortOrder="999999">
             <label>Advanced</label>
         </tab>
-        <section id="advanced" translate="label" type="text" sortOrder="910" showInDefault="1" showInWebsite="1" showInStore="1">
+        <section id="advanced" translate="label" type="text" sortOrder="910" showInDefault="0" showInWebsite="0" showInStore="0">
             <label>Advanced</label>
             <tab>advanced</tab>
             <resource>Magento_Backend::advanced</resource>
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Options/AjaxTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Options/AjaxTest.php
index 0c6f680df486a50c584008b9cee288366c5d0209..1ca01ca6724ce741b58278ffe2d42a8522aa574c 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Options/AjaxTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Adminhtml/Product/Options/AjaxTest.php
@@ -55,12 +55,6 @@ class AjaxTest extends \PHPUnit_Framework_TestCase
             ->getMock();
         $eventManager->expects($this->exactly(2))->method('dispatch')->will($this->returnValue(true));
 
-        $scopeConfig = $this->getMockBuilder(\Magento\Framework\App\Config::class)
-            ->setMethods(['getValue'])
-            ->disableOriginalConstructor()->getMock();
-        $scopeConfig->expects($this->once())->method('getValue')->withAnyParameters()
-            ->will($this->returnValue(false));
-
         $product = $this->getMockBuilder(\Magento\Catalog\Model\Product::class)->disableOriginalConstructor()
             ->setMethods(['setStoreId', 'load', 'getId', '__wakeup', '__sleep'])
             ->getMock();
@@ -93,8 +87,6 @@ class AjaxTest extends \PHPUnit_Framework_TestCase
 
         $this->context->expects($this->once())->method('getEventManager')
             ->will($this->returnValue($eventManager));
-        $this->context->expects($this->once())->method('getScopeConfig')
-            ->will($this->returnValue($scopeConfig));
         $this->context->expects($this->once())->method('getLayout')
             ->will($this->returnValue($layout));
         $this->context->expects($this->once())->method('getRequest')
diff --git a/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php b/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php
index 9c153fb920279c48ac2e36014a178b67de66eb3f..90d76e469b7abe4d0c2e253bd174f0ee8437dc00 100644
--- a/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Block/Product/Widget/NewWidgetTest.php
@@ -63,7 +63,7 @@ class NewWidgetTest extends \PHPUnit_Framework_TestCase
             false,
             false
         );
-        $this->scopeConfig = $this->getMock(\Magento\Framework\App\Config::class, ['getValue'], [], '', false, false);
+        $this->scopeConfig = $this->getMock(\Magento\Framework\App\Config::class, [], [], '', false, false);
         $this->cacheState = $this->getMock(
             \Magento\Framework\App\Cache\State::class,
             ['isEnabled'],
@@ -188,8 +188,6 @@ class NewWidgetTest extends \PHPUnit_Framework_TestCase
     {
         $this->eventManager->expects($this->exactly(2))->method('dispatch')
             ->will($this->returnValue(true));
-        $this->scopeConfig->expects($this->once())->method('getValue')->withAnyParameters()
-            ->willReturn(false);
         $this->cacheState->expects($this->atLeastOnce())->method('isEnabled')->withAnyParameters()
             ->willReturn(false);
         $this->catalogConfig->expects($this->once())->method('getProductAttributes')
diff --git a/app/code/Magento/Checkout/Test/Unit/Block/Cart/Item/Renderer/ActionsTest.php b/app/code/Magento/Checkout/Test/Unit/Block/Cart/Item/Renderer/ActionsTest.php
index 526a1d580a5d5efe0a14109345113edcc22936e9..48c6eb87c4d73755372d66d7172f2a4aa9073bd5 100644
--- a/app/code/Magento/Checkout/Test/Unit/Block/Cart/Item/Renderer/ActionsTest.php
+++ b/app/code/Magento/Checkout/Test/Unit/Block/Cart/Item/Renderer/ActionsTest.php
@@ -65,10 +65,6 @@ class ActionsTest extends \PHPUnit_Framework_TestCase
         $childNameTwo = 'child.2';
         $childNames = [$childNameOne, $childNameTwo];
 
-        $this->scopeConfigMock->expects($this->once())
-            ->method('getValue')
-            ->willReturn(false);
-
         /**
          * @var Item|\PHPUnit_Framework_MockObject_MockObject $itemMock
          */
diff --git a/app/code/Magento/Config/Block/System/Config/Form/Fieldset/Modules/DisableOutput.php b/app/code/Magento/Config/Block/System/Config/Form/Fieldset/Modules/DisableOutput.php
index cda1a6a80cce639bf511f8400d4f13119a728e5d..e938de4aad64353d54f279525b142612911963bc 100644
--- a/app/code/Magento/Config/Block/System/Config/Form/Fieldset/Modules/DisableOutput.php
+++ b/app/code/Magento/Config/Block/System/Config/Form/Fieldset/Modules/DisableOutput.php
@@ -9,6 +9,9 @@
  */
 namespace Magento\Config\Block\System\Config\Form\Fieldset\Modules;
 
+/**
+ * @deprecated
+ */
 class DisableOutput extends \Magento\Config\Block\System\Config\Form\Fieldset
 {
     /**
diff --git a/app/code/Magento/Config/Model/Config/Parser/Comment.php b/app/code/Magento/Config/Model/Config/Parser/Comment.php
new file mode 100644
index 0000000000000000000000000000000000000000..56dd38d55d800ec27c95b983d53dbb04a144dc87
--- /dev/null
+++ b/app/code/Magento/Config/Model/Config/Parser/Comment.php
@@ -0,0 +1,80 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Config\Model\Config\Parser;
+
+use Magento\Config\Model\Placeholder\Environment;
+use Magento\Config\Model\Placeholder\PlaceholderInterface;
+use Magento\Framework\App\Config\CommentParserInterface;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\Exception\FileSystemException;
+use Magento\Framework\Filesystem;
+
+/**
+ * Class Comment. It is used to parse config paths from comment section.
+ */
+class Comment implements CommentParserInterface
+{
+    /**
+     * @var Filesystem
+     */
+    private $filesystem;
+
+    /**
+     * @var PlaceholderInterface
+     */
+    private $placeholder;
+
+    /**
+     * @param Filesystem $filesystem
+     * @param PlaceholderInterface $placeholder
+     */
+    public function __construct(
+        Filesystem $filesystem,
+        PlaceholderInterface $placeholder
+    ) {
+        $this->filesystem = $filesystem;
+        $this->placeholder = $placeholder;
+    }
+
+    /**
+     * Retrieves config paths from comment section of the file.
+     * Example of comment:
+     *        * CONFIG__DEFAULT__SOME__CONF__PATH_ONE
+     *        * CONFIG__DEFAULT__SOME__CONF__PATH_TWO
+     * This method will return:
+     *        array(
+     *            'CONFIG__DEFAULT__SOME__CONF__PATH_ONE' => 'some/conf/path_one',
+     *            'CONFIG__DEFAULT__SOME__CONF__PATH_TWO' => 'some/conf/path_two'
+     *        );
+     *
+     * @param string $fileName
+     * @return array
+     * @throws FileSystemException
+     */
+    public function execute($fileName)
+    {
+        $fileContent = $this->filesystem
+            ->getDirectoryRead(DirectoryList::CONFIG)
+            ->readFile($fileName);
+
+        $pattern = sprintf('/\s+\*\s+(?P<placeholder>%s.*?)\s/', preg_quote(Environment::PREFIX));
+        preg_match_all($pattern, $fileContent, $matches);
+
+        if (!isset($matches['placeholder'])) {
+            return [];
+        }
+
+        $configs = [];
+        foreach ($matches['placeholder'] as $placeholder) {
+            $path = $this->placeholder->restore($placeholder);
+            $path = preg_replace('/^' . ScopeConfigInterface::SCOPE_TYPE_DEFAULT . '\//', '', $path);
+            $configs[$placeholder] = $path;
+        }
+
+        return $configs;
+    }
+}
diff --git a/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php b/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php
index 218ea75643939fb116512ced43aca46d7566e5c4..b8f420880ff6d231a36ec2e50126d36eaa149adf 100644
--- a/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php
+++ b/app/code/Magento/Config/Test/Unit/Block/System/Config/Form/Fieldset/Modules/DisableOutputTest.php
@@ -7,6 +7,7 @@ namespace Magento\Config\Test\Unit\Block\System\Config\Form\Fieldset\Modules;
 
 /**
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
+ * @deprecated
  */
 class DisableOutputTest extends \PHPUnit_Framework_TestCase
 {
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/Parser/CommentTest.php b/app/code/Magento/Config/Test/Unit/Model/Config/Parser/CommentTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..933f18e1e2919ba442028feada14834313d7b617
--- /dev/null
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/Parser/CommentTest.php
@@ -0,0 +1,80 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Config\Test\Unit\Model\Config\Parser;
+
+use Magento\Config\Model\Config\Parser\Comment;
+use Magento\Config\Model\Placeholder\PlaceholderInterface;
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\Filesystem;
+use Magento\Framework\Filesystem\Directory\ReadInterface;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+
+class CommentTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var PlaceholderInterface|MockObject
+     */
+    private $placeholderMock;
+
+    /**
+     * @var Filesystem|MockObject
+     */
+    private $fileSystemMock;
+
+    /**
+     * @var Comment
+     */
+    private $model;
+
+    protected function setUp()
+    {
+        $this->placeholderMock = $this->getMockBuilder(PlaceholderInterface::class)
+            ->disableOriginalConstructor()
+            ->getMockForAbstractClass();
+        $this->fileSystemMock = $this->getMockBuilder(Filesystem::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->model = new Comment(
+            $this->fileSystemMock,
+            $this->placeholderMock
+        );
+    }
+
+    public function testExecute()
+    {
+        $fileName = 'config.local.php';
+        $directoryReadMock = $this->getMockBuilder(ReadInterface::class)
+            ->disableOriginalConstructor()
+            ->getMockForAbstractClass();
+        $directoryReadMock->expects($this->once())
+            ->method('readFile')
+            ->with($fileName)
+            ->willReturn(file_get_contents(__DIR__ . '/../_files/' . $fileName));
+        $this->fileSystemMock->expects($this->once())
+            ->method('getDirectoryRead')
+            ->with(DirectoryList::CONFIG)
+            ->willReturn($directoryReadMock);
+        $this->placeholderMock->expects($this->any())
+            ->method('restore')
+            ->withConsecutive(
+                ['CONFIG__DEFAULT__SOME__PAYMENT__PASSWORD'],
+                ['CONFIG__DEFAULT__SOME__PAYMENT__TOKEN']
+            )
+            ->willReturnOnConsecutiveCalls(
+                'some/payment/password',
+                'some/payment/token'
+            );
+
+        $this->assertEquals(
+            $this->model->execute($fileName),
+            [
+                'CONFIG__DEFAULT__SOME__PAYMENT__PASSWORD' => 'some/payment/password',
+                'CONFIG__DEFAULT__SOME__PAYMENT__TOKEN' => 'some/payment/token'
+            ]
+        );
+    }
+}
diff --git a/app/code/Magento/Config/Test/Unit/Model/Config/_files/config.local.php b/app/code/Magento/Config/Test/Unit/Model/Config/_files/config.local.php
new file mode 100644
index 0000000000000000000000000000000000000000..6c4907567b0320c163e1b0ada2c71259b30a2641
--- /dev/null
+++ b/app/code/Magento/Config/Test/Unit/Model/Config/_files/config.local.php
@@ -0,0 +1,24 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+return [
+    'scopes' => [
+        'websites' => [
+            'admin' => [
+                'website_id' => '0'
+            ],
+        ],
+    ],
+    /**
+     * The configuration file doesn't contain sensitive data for security reasons.
+     * Sensitive data can be stored in the following environment variables:
+     * CONFIG__DEFAULT__SOME__PAYMENT__PASSWORD for some/payment/password
+     */
+    'system' => []
+    /**
+     * CONFIG__DEFAULT__SOME__PAYMENT__TOKEN for some/payment/token
+     * test phrase CONFIG__DEFAULT__SOME__PAYMENT__TOKEN for some/payment/token
+     */
+];
diff --git a/app/code/Magento/Config/etc/di.xml b/app/code/Magento/Config/etc/di.xml
index 9579e1ca3191445edd6599eb7b8e779b36c9ab76..ab8973a1a15ceecf227d9de73450b8f906fa0c91 100644
--- a/app/code/Magento/Config/etc/di.xml
+++ b/app/code/Magento/Config/etc/di.xml
@@ -9,6 +9,7 @@
     <preference for="Magento\Config\Model\Config\Structure\SearchInterface" type="Magento\Config\Model\Config\Structure" />
     <preference for="Magento\Config\Model\Config\Backend\File\RequestData\RequestDataInterface" type="Magento\Config\Model\Config\Backend\File\RequestData" />
     <preference for="Magento\Framework\App\Config\ConfigResource\ConfigInterface" type="Magento\Config\Model\ResourceModel\Config" />
+    <preference for="Magento\Framework\App\Config\CommentParserInterface" type="Magento\Config\Model\Config\Parser\Comment" />
     <virtualType name="Magento\Framework\View\TemplateEngine\Xhtml\ConfigCompiler" type="Magento\Framework\View\TemplateEngine\Xhtml\Compiler" shared="false">
         <arguments>
             <argument name="compilerText" xsi:type="object">Magento\Framework\View\TemplateEngine\Xhtml\Compiler\Text</argument>
@@ -184,4 +185,9 @@
             </argument>
         </arguments>
     </type>
+    <type name="Magento\Config\Model\Config\Parser\Comment">
+        <arguments>
+            <argument name="placeholder" xsi:type="object">Magento\Config\Model\Placeholder\Environment</argument>
+        </arguments>
+    </type>
 </config>
diff --git a/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/CollectorFactory.php b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/CollectorFactory.php
new file mode 100644
index 0000000000000000000000000000000000000000..e78b4b71d31184a3f44439d4a168766475b9ad09
--- /dev/null
+++ b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/CollectorFactory.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Console\Command\App\SensitiveConfigSet;
+
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\ObjectManagerInterface;
+
+/**
+ * Class CollectorFactory creates instance of CollectorInterface.
+ */
+class CollectorFactory
+{
+    /**#@+
+     * Constant for collector types.
+     */
+    const TYPE_INTERACTIVE = 'interactive';
+    const TYPE_SIMPLE = 'simple';
+    /**#@-*/
+
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var array
+     */
+    private $types;
+
+    /**
+     * @param ObjectManagerInterface $objectManager
+     * @param array $types
+     */
+    public function __construct(
+        ObjectManagerInterface $objectManager,
+        array $types = []
+    ) {
+        $this->objectManager = $objectManager;
+        $this->types = $types;
+    }
+
+    /**
+     * Create instance of CollectorInterface by given type.
+     *
+     * @param string $type
+     * @return CollectorInterface
+     * @throws LocalizedException If collector type not exist in registered types array.
+     */
+    public function create($type)
+    {
+        if (!isset($this->types[$type])) {
+            throw new LocalizedException(__('Class for type "%1" was not declared', $type));
+        }
+
+        $object = $this->objectManager->create($this->types[$type]);
+
+        if (!$object instanceof CollectorInterface) {
+            throw new LocalizedException(
+                __('%1 does not implement %2', get_class($object), CollectorInterface::class)
+            );
+        }
+
+        return $object;
+    }
+}
diff --git a/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/CollectorInterface.php b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/CollectorInterface.php
new file mode 100644
index 0000000000000000000000000000000000000000..6aecf23adf37d494ba02ae46f2e09bd52fd1079f
--- /dev/null
+++ b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/CollectorInterface.php
@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Console\Command\App\SensitiveConfigSet;
+
+use Magento\Framework\Exception\LocalizedException;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Interface CollectorInterface
+ */
+interface CollectorInterface
+{
+    /**
+     * Collects values from user input and return result as array.
+     *
+     * @param InputInterface $input
+     * @param OutputInterface $output
+     * @param array $configPaths list of available config paths.
+     * @return array
+     * @throws LocalizedException
+     */
+    public function getValues(InputInterface $input, OutputInterface $output, array $configPaths);
+}
diff --git a/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/InteractiveCollector.php b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/InteractiveCollector.php
new file mode 100644
index 0000000000000000000000000000000000000000..3f67a98ff1c58d49dba645e4987c833d840260d2
--- /dev/null
+++ b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/InteractiveCollector.php
@@ -0,0 +1,67 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Console\Command\App\SensitiveConfigSet;
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\QuestionFactory;
+use Symfony\Component\Console\Helper\QuestionHelper;
+
+/**
+ * Class InteractiveCollector collects configuration values from user input.
+ */
+class InteractiveCollector implements CollectorInterface
+{
+    /**
+     * @var QuestionFactory
+     */
+    private $questionFactory;
+
+    /**
+     * @var QuestionHelper
+     */
+    private $questionHelper;
+
+    /**
+     * @param QuestionFactory $questionFactory
+     * @param QuestionHelper $questionHelper
+     */
+    public function __construct(
+        QuestionFactory $questionFactory,
+        QuestionHelper $questionHelper
+    ) {
+        $this->questionFactory = $questionFactory;
+        $this->questionHelper = $questionHelper;
+    }
+
+    /**
+     * Collect list of configuration values from user input.
+     * For example, this method will return
+     *
+     * ```php
+     * [
+     *     'some/configuration/path1' => 'someValue1',
+     *     'some/configuration/path2' => 'someValue2',
+     *     'some/configuration/path3' => 'someValue3',
+     * ]
+     * ```
+     *
+     * {@inheritdoc}
+     */
+    public function getValues(InputInterface $input, OutputInterface $output, array $configPaths)
+    {
+        $output->writeln('<info>Please set configuration values or skip them by pressing [Enter]:</info>');
+        $values = [];
+        foreach ($configPaths as $configPath) {
+            $question = $this->questionFactory->create([
+                'question' => $configPath . ': '
+            ]);
+            $values[$configPath] = $this->questionHelper->ask($input, $output, $question);
+        }
+
+        return $values;
+    }
+}
diff --git a/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/SimpleCollector.php b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/SimpleCollector.php
new file mode 100644
index 0000000000000000000000000000000000000000..828b4254a53085a986c1b0933912bae3efe7bc0c
--- /dev/null
+++ b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSet/SimpleCollector.php
@@ -0,0 +1,131 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Console\Command\App\SensitiveConfigSet;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSetCommand;
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Phrase;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Question\QuestionFactory;
+use Symfony\Component\Console\Helper\QuestionHelper;
+
+/**
+ * Class SimpleCollector collects configuration value from user input.
+ */
+class SimpleCollector implements CollectorInterface
+{
+    /**
+     * @var QuestionFactory
+     */
+    private $questionFactory;
+
+    /**
+     * @var QuestionHelper
+     */
+    private $questionHelper;
+
+    /**
+     * @param QuestionFactory $questionFactory
+     * @param QuestionHelper $questionHelper
+     */
+    public function __construct(
+        QuestionFactory $questionFactory,
+        QuestionHelper $questionHelper
+    ) {
+        $this->questionFactory = $questionFactory;
+        $this->questionHelper = $questionHelper;
+    }
+
+    /**
+     * Collects single configuration value from user input.
+     * For example, this method will return
+     *
+     * ```php
+     * ['some/configuration/path' => 'someValue']
+     * ```
+     *
+     * {@inheritdoc}
+     */
+    public function getValues(InputInterface $input, OutputInterface $output, array $configPaths)
+    {
+        $inputPath = $input->getArgument(SensitiveConfigSetCommand::INPUT_ARGUMENT_PATH);
+        $configPathQuestion = $this->getConfigPathQuestion($configPaths);
+        $configPath = $inputPath === null ?
+            $this->questionHelper->ask($input, $output, $configPathQuestion) :
+            $inputPath;
+
+        $this->validatePath($configPath, $configPaths);
+
+        $inputValue = $input->getArgument(SensitiveConfigSetCommand::INPUT_ARGUMENT_VALUE);
+        $configValueQuestion = $this->getConfigValueQuestion();
+        $configValue = $inputValue === null ?
+            $this->questionHelper->ask($input, $output, $configValueQuestion) :
+            $inputValue;
+
+        return [$configPath => $configValue];
+    }
+
+    /**
+     * Get Question to fill configuration path with autocompletion in interactive mode.
+     *
+     * @param array $configPaths
+     * @return Question
+     */
+    private function getConfigPathQuestion(array $configPaths)
+    {
+        /** @var Question $configPathQuestion */
+        $configPathQuestion = $this->questionFactory->create([
+            'question' => 'Please enter config path: '
+        ]);
+        $configPathQuestion->setAutocompleterValues($configPaths);
+        $configPathQuestion->setValidator(function ($configPath) use ($configPaths) {
+            $this->validatePath($configPath, $configPaths);
+            return $configPath;
+        });
+
+        return $configPathQuestion;
+    }
+
+    /**
+     * Get Question to fill configuration value in interactive mode.
+     *
+     * @return Question
+     */
+    private function getConfigValueQuestion()
+    {
+        /** @var Question $configValueQuestion */
+        $configValueQuestion = $this->questionFactory->create([
+            'question' => 'Please enter value: '
+        ]);
+        $configValueQuestion->setValidator(function ($interviewer) {
+            if (empty($interviewer)) {
+                throw new LocalizedException(new Phrase('Value can\'t be empty'));
+            }
+            return $interviewer;
+        });
+
+        return $configValueQuestion;
+    }
+
+    /**
+     * Check if entered configuration path is valid, throw LocalizedException otherwise.
+     *
+     * @param string $configPath Path that should be validated.
+     * @param array $configPaths List of allowed paths.
+     * @return void
+     * @throws LocalizedException If config path not exist in allowed config paths.
+     */
+    private function validatePath($configPath, array $configPaths)
+    {
+        if (!in_array($configPath, $configPaths)) {
+            throw new LocalizedException(
+                new Phrase('A configuration with this path does not exist or is not sensitive')
+            );
+        }
+    }
+}
diff --git a/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSetCommand.php b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSetCommand.php
new file mode 100644
index 0000000000000000000000000000000000000000..e8555ceb9530f59561dce02ed264b3f0de3ee72b
--- /dev/null
+++ b/app/code/Magento/Deploy/Console/Command/App/SensitiveConfigSetCommand.php
@@ -0,0 +1,196 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Console\Command\App;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorFactory;
+use Magento\Deploy\Model\ConfigWriter;
+use Magento\Framework\App\Config\CommentParserInterface;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\Scope\ValidatorInterface;
+use Magento\Framework\Config\File\ConfigFilePool;
+use Magento\Framework\Console\Cli;
+use Magento\Framework\Exception\FileSystemException;
+use Magento\Framework\Exception\LocalizedException;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Command for set sensitive variable through deploy process.
+ *
+ * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
+ */
+class SensitiveConfigSetCommand extends Command
+{
+    /**#@+
+     * Names of input arguments or options.
+     */
+    const INPUT_OPTION_INTERACTIVE = 'interactive';
+    const INPUT_OPTION_SCOPE = 'scope';
+    const INPUT_OPTION_SCOPE_CODE = 'scope-code';
+    const INPUT_ARGUMENT_PATH = 'path';
+    const INPUT_ARGUMENT_VALUE = 'value';
+    /**#@-*/
+
+    /**
+     * @var CommentParserInterface
+     */
+    private $commentParser;
+
+    /**
+     * @var ConfigFilePool
+     */
+    private $configFilePool;
+
+    /**
+     * @var ConfigWriter
+     */
+    private $configWriter;
+
+    /**
+     * @var ValidatorInterface
+     */
+    private $scopeValidator;
+
+    /**
+     * @var CollectorFactory
+     */
+    private $collectorFactory;
+
+    /**
+     * @param ConfigFilePool $configFilePool
+     * @param CommentParserInterface $commentParser
+     * @param ConfigWriter $configWriter
+     * @param ValidatorInterface $scopeValidator
+     * @param CollectorFactory $collectorFactory
+     */
+    public function __construct(
+        ConfigFilePool $configFilePool,
+        CommentParserInterface $commentParser,
+        ConfigWriter $configWriter,
+        ValidatorInterface $scopeValidator,
+        CollectorFactory $collectorFactory
+    ) {
+        parent::__construct();
+        $this->commentParser = $commentParser;
+        $this->configFilePool = $configFilePool;
+        $this->configWriter = $configWriter;
+        $this->scopeValidator = $scopeValidator;
+        $this->collectorFactory = $collectorFactory;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this->addArgument(
+            self::INPUT_ARGUMENT_PATH,
+            InputArgument::OPTIONAL,
+            'Configuration path for example group/section/field_name'
+        );
+        $this->addArgument(
+            self::INPUT_ARGUMENT_VALUE,
+            InputArgument::OPTIONAL,
+            'Configuration value'
+        );
+        $this->addOption(
+            self::INPUT_OPTION_INTERACTIVE,
+            'i',
+            InputOption::VALUE_NONE,
+            'Enable interactive mode to set all sensitive variables'
+        );
+        $this->addOption(
+            self::INPUT_OPTION_SCOPE,
+            null,
+            InputOption::VALUE_OPTIONAL,
+            'Scope for configuration, if not set use \'default\'',
+            ScopeConfigInterface::SCOPE_TYPE_DEFAULT
+        );
+        $this->addOption(
+            self::INPUT_OPTION_SCOPE_CODE,
+            null,
+            InputOption::VALUE_OPTIONAL,
+            'Scope code for configuration, empty string by default',
+            ''
+        );
+        $this->setName('config:sensitive:set')
+            ->setDescription('Set sensitive configuration values');
+        parent::configure();
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $scope = $input->getOption(self::INPUT_OPTION_SCOPE);
+        $scopeCode = $input->getOption(self::INPUT_OPTION_SCOPE_CODE);
+
+        try {
+            $this->scopeValidator->isValid($scope, $scopeCode);
+            $configPaths = $this->getConfigPaths();
+            $isInteractive = $input->getOption(self::INPUT_OPTION_INTERACTIVE);
+            $collector = $this->collectorFactory->create(
+                $isInteractive ? CollectorFactory::TYPE_INTERACTIVE : CollectorFactory::TYPE_SIMPLE
+            );
+            $values = $collector->getValues($input, $output, $configPaths);
+            $this->configWriter->save($values, $scope, $scopeCode);
+        } catch (LocalizedException $e) {
+            $output->writeln(sprintf('<error>%s</error>', $e->getMessage()));
+            return Cli::RETURN_FAILURE;
+        }
+
+        $this->writeSuccessMessage($output, $isInteractive);
+
+        return Cli::RETURN_SUCCESS;
+    }
+
+    /**
+     * Writes success message.
+     *
+     * @param OutputInterface $output
+     * @param boolean $isInteractive
+     * @return void
+     */
+    private function writeSuccessMessage(OutputInterface $output, $isInteractive)
+    {
+        $output->writeln(sprintf(
+            '<info>Configuration value%s saved in app/etc/%s</info>',
+            $isInteractive ? 's' : '',
+            $this->configFilePool->getPath(ConfigFilePool::APP_CONFIG)
+        ));
+    }
+
+    /**
+     * Get sensitive configuration paths.
+     *
+     * @return array
+     * @throws LocalizedException if configuration file not exists or sensitive configuration is empty
+     */
+    private function getConfigPaths()
+    {
+        $configFilePath = $this->configFilePool->getPathsByPool(ConfigFilePool::LOCAL)[ConfigFilePool::APP_CONFIG];
+        try {
+            $configPaths = $this->commentParser->execute($configFilePath);
+        } catch (FileSystemException $e) {
+            throw new LocalizedException(__(
+                'File app/etc/%1 can\'t be read. Please check if it exists and has read permissions.',
+                [
+                    $configFilePath
+                ]
+            ));
+        }
+
+        if (empty($configPaths)) {
+            throw new LocalizedException(__('There are no sensitive configurations to fill'));
+        }
+
+        return $configPaths;
+    }
+}
diff --git a/app/code/Magento/Deploy/Model/ConfigWriter.php b/app/code/Magento/Deploy/Model/ConfigWriter.php
new file mode 100644
index 0000000000000000000000000000000000000000..7a9b70c528ac9e5d9010e0683b651823ecb74c4a
--- /dev/null
+++ b/app/code/Magento/Deploy/Model/ConfigWriter.php
@@ -0,0 +1,109 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Model;
+
+use Magento\Config\App\Config\Type\System;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\DeploymentConfig\Writer;
+use Magento\Framework\Config\File\ConfigFilePool;
+use Magento\Framework\Stdlib\ArrayManager;
+
+/**
+ * Class ConfigWriter. Save configuration values into config file.
+ */
+class ConfigWriter
+{
+    /**
+     * @var Writer
+     */
+    private $writer;
+
+    /**
+     * @var ArrayManager
+     */
+    private $arrayManager;
+
+    /**
+     * @param Writer $writer
+     * @param ArrayManager $arrayManager
+     */
+    public function __construct(
+        Writer $writer,
+        ArrayManager $arrayManager
+    ) {
+        $this->writer = $writer;
+        $this->arrayManager = $arrayManager;
+    }
+
+    /**
+     * Save given list of configuration values into config file.
+     *
+     * @param array $values the configuration values (path-value pairs) to be saved.
+     * @param string $scope scope in which configuration would be saved.
+     * @param string|null $scopeCode
+     * @return void
+     */
+    public function save(array $values, $scope = ScopeConfigInterface::SCOPE_TYPE_DEFAULT, $scopeCode = null)
+    {
+        $config = [];
+        $pathPrefix = $this->getPathPrefix($scope, $scopeCode);
+        foreach ($values as $configPath => $configValue) {
+            $fullConfigPath = $pathPrefix . $configPath;
+            $config = $this->setConfig($config, $fullConfigPath, $configValue);
+        }
+
+        $this->writer
+            ->saveConfig(
+                [ConfigFilePool::APP_CONFIG => $config]
+            );
+    }
+
+    /**
+     * Apply configuration value into configuration array by given path.
+     * Ignore values that equal to null.
+     *
+     * @param array $config
+     * @param string $configPath
+     * @param string $configValue
+     * @return array
+     */
+    private function setConfig(array $config, $configPath, $configValue)
+    {
+        if ($configValue === null) {
+            return $config;
+        }
+
+        $config = $this->arrayManager->set(
+            $configPath,
+            $config,
+            $configValue
+        );
+
+        return $config;
+    }
+
+    /**
+     * Generate config prefix from given $scope and $scopeCode.
+     * If $scope isn't equal to 'default' and $scopeCode isn't empty put $scopeCode into prefix path,
+     * otherwise ignore $scopeCode.
+     *
+     * @param string $scope
+     * @param string $scopeCode
+     * @return string
+     */
+    private function getPathPrefix($scope, $scopeCode)
+    {
+        $pathPrefixes = [System::CONFIG_TYPE, $scope];
+        if (
+            $scope !== ScopeConfigInterface::SCOPE_TYPE_DEFAULT
+            && !empty($scopeCode)
+        ) {
+            $pathPrefixes[] = $scopeCode;
+        }
+
+        return implode('/', $pathPrefixes) . '/';
+    }
+}
diff --git a/app/code/Magento/Deploy/Model/Filesystem.php b/app/code/Magento/Deploy/Model/Filesystem.php
index 83de641c4442a445cceb020cad060ce2c4809f5b..7918207934759bd1cb003e676c3b74a41330777c 100644
--- a/app/code/Magento/Deploy/Model/Filesystem.php
+++ b/app/code/Magento/Deploy/Model/Filesystem.php
@@ -13,7 +13,8 @@ use Magento\Framework\Exception\LocalizedException;
 use Magento\User\Model\ResourceModel\User\Collection as UserCollection;
 
 /**
- * Generate static files, compile; clear var/generation, var/di/, var/view_preprocessed and pub/static directories
+ * Generate static files, compile
+ * Сlear generated/code, generated/metadata/, var/view_preprocessed and pub/static directories
  *
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  */
@@ -129,7 +130,7 @@ class Filesystem
     public function regenerateStatic(
         OutputInterface $output
     ) {
-        // Сlear var/generation, var/di/, var/view_preprocessed and pub/static directories
+        // Сlear generated/code, generated/metadata/, var/view_preprocessed and pub/static directories
         $this->cleanupFilesystem(
             [
                 DirectoryList::CACHE,
@@ -315,7 +316,7 @@ class Filesystem
      */
     public function lockStaticResources()
     {
-        // Lock /var/generation, /var/di/ and /var/view_preprocessed directories
+        // Lock /generated/code, /generated/metadata/ and /var/view_preprocessed directories
         $this->changePermissions(
             [
                 DirectoryList::GENERATION,
diff --git a/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/CollectorFactoryTest.php b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/CollectorFactoryTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..c16fa1d7c176db14d525444a3f18e2231258a31f
--- /dev/null
+++ b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/CollectorFactoryTest.php
@@ -0,0 +1,81 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Test\Unit\Console\Command\App\SensitiveConfigSet;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorFactory;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorInterface;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\InteractiveCollector;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\SimpleCollector;
+use Magento\Framework\ObjectManagerInterface;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+use stdClass;
+
+class CollectorFactoryTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var ObjectManagerInterface|MockObject
+     */
+    private $objectManagerMock;
+
+    /**
+     * @var CollectorFactory
+     */
+    private $model;
+
+    protected function setUp()
+    {
+        $this->objectManagerMock = $this->getMockBuilder(ObjectManagerInterface::class)
+            ->getMockForAbstractClass();
+
+        $this->model = new CollectorFactory(
+            $this->objectManagerMock,
+            [
+                CollectorFactory::TYPE_SIMPLE => SimpleCollector::class,
+                CollectorFactory::TYPE_INTERACTIVE => InteractiveCollector::class,
+                'wrongType' => stdClass::class,
+            ]
+        );
+    }
+
+    public function testCreate()
+    {
+        $collectorMock = $this->getMockBuilder(CollectorInterface::class)
+            ->getMockForAbstractClass();
+        $this->objectManagerMock->expects($this->once())
+            ->method('create')
+            ->with(SimpleCollector::class)
+            ->willReturn($collectorMock);
+
+        $this->assertInstanceOf(
+            CollectorInterface::class,
+            $this->model->create(CollectorFactory::TYPE_SIMPLE)
+        );
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage Class for type "dummyType" was not declared
+     */
+    public function testCreateNonExisted()
+    {
+        $this->model->create('dummyType');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage stdClass does not implement
+     */
+    public function testCreateWrongImplementation()
+    {
+        $type = 'wrongType';
+        $this->objectManagerMock->expects($this->once())
+            ->method('create')
+            ->with(stdClass::class)
+            ->willReturn(new stdClass());
+
+        $this->model->create($type);
+    }
+}
diff --git a/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/InteractiveCollectorTest.php b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/InteractiveCollectorTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..91576c89463726db1e0f034e72ac96e418770083
--- /dev/null
+++ b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/InteractiveCollectorTest.php
@@ -0,0 +1,100 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Test\Unit\Console\Command\App\SensitiveConfigSet;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\InteractiveCollector;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Question\QuestionFactory;
+use Symfony\Component\Console\Helper\QuestionHelper;
+
+class InteractiveCollectorTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var QuestionFactory|MockObject
+     */
+    private $questionFactoryMock;
+
+    /**
+     * @var QuestionHelper|MockObject
+     */
+    private $questionHelperMock;
+
+    /**
+     * @var InputInterface|MockObject
+     */
+    private $inputMock;
+
+    /**
+     * @var OutputInterface|MockObject
+     */
+    private $outputMock;
+
+    /**
+     * @var InteractiveCollector
+     */
+    private $model;
+
+    protected function setUp()
+    {
+        $this->questionFactoryMock = $this->getMockBuilder(QuestionFactory::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['create'])
+            ->getMock();
+        $this->questionHelperMock = $this->getMockBuilder(QuestionHelper::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->inputMock = $this->getMockBuilder(InputInterface::class)
+            ->getMockForAbstractClass();
+        $this->outputMock = $this->getMockBuilder(OutputInterface::class)
+            ->getMockForAbstractClass();
+
+        $this->model = new InteractiveCollector(
+            $this->questionFactoryMock,
+            $this->questionHelperMock
+        );
+    }
+
+    public function testGetValues()
+    {
+        $configPaths = [
+            'some/config/path1',
+            'some/config/path2',
+            'some/config/path3'
+        ];
+
+        $questionMock = $this->getMockBuilder(Question::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->questionHelperMock->expects($this->exactly(3))
+            ->method('ask')
+            ->with($this->inputMock, $this->outputMock, $questionMock)
+            ->willReturn('someValue');
+        $this->questionFactoryMock->expects($this->exactly(3))
+            ->method('create')
+            ->withConsecutive(
+                [['question' => $configPaths[0] . ': ']],
+                [['question' => $configPaths[1] . ': ']],
+                [['question' => $configPaths[2] . ': ']]
+            )
+            ->willReturn($questionMock);
+
+        $this->assertEquals(
+            [
+                'some/config/path1' => 'someValue',
+                'some/config/path2' => 'someValue',
+                'some/config/path3' => 'someValue'
+            ],
+            $this->model->getValues(
+                $this->inputMock,
+                $this->outputMock,
+                $configPaths
+            )
+        );
+    }
+}
diff --git a/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/SimpleCollectorTest.php b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/SimpleCollectorTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..124fc4b0119e377f508e8b1b22439446bd9d8fe4
--- /dev/null
+++ b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSet/SimpleCollectorTest.php
@@ -0,0 +1,187 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Test\Unit\Console\Command\App\SensitiveConfigSet;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\SimpleCollector;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSetCommand;
+use Magento\Framework\Exception\LocalizedException;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+use Symfony\Component\Console\Question\QuestionFactory;
+use Symfony\Component\Console\Helper\QuestionHelper;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+
+class SimpleCollectorTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var QuestionFactory|MockObject
+     */
+    private $questionFactoryMock;
+
+    /**
+     * @var QuestionHelper|MockObject
+     */
+    private $questionHelperMock;
+
+    /**
+     * @var InputInterface|MockObject
+     */
+    private $inputMock;
+
+    /**
+     * @var OutputInterface|MockObject
+     */
+    private $outputMock;
+
+    /**
+     * @var SimpleCollector
+     */
+    private $model;
+
+    protected function setUp()
+    {
+        $this->questionFactoryMock = $this->getMockBuilder(QuestionFactory::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['create'])
+            ->getMock();
+        $this->questionHelperMock = $this->getMockBuilder(QuestionHelper::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->inputMock = $this->getMockBuilder(InputInterface::class)
+            ->getMockForAbstractClass();
+        $this->outputMock = $this->getMockBuilder(OutputInterface::class)
+            ->getMockForAbstractClass();
+
+        $this->model = new SimpleCollector(
+            $this->questionFactoryMock,
+            $this->questionHelperMock
+        );
+    }
+
+    public function testGetValues()
+    {
+        $configPaths = [
+            'some/config/path1',
+            'some/config/path2'
+        ];
+
+        $pathQuestionMock = $this->getMockBuilder(Question::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $valueQuestionMock = $this->getMockBuilder(Question::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->inputMock->expects($this->exactly(2))
+            ->method('getArgument')
+            ->withConsecutive(
+                [SensitiveConfigSetCommand::INPUT_ARGUMENT_PATH],
+                [SensitiveConfigSetCommand::INPUT_ARGUMENT_VALUE]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $configPaths[0],
+                'someValue'
+            );
+        $this->questionFactoryMock->expects($this->exactly(2))
+            ->method('create')
+            ->withConsecutive(
+                [['question' => 'Please enter config path: ']],
+                [['question' => 'Please enter value: ']]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $pathQuestionMock,
+                $valueQuestionMock
+            );
+
+        $this->assertEquals(
+            ['some/config/path1' => 'someValue'],
+            $this->model->getValues(
+                $this->inputMock,
+                $this->outputMock,
+                $configPaths
+            )
+        );
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage A configuration with this path does not exist or is not sensitive
+     */
+    public function testWrongConfigPath()
+    {
+        $configPaths = [
+            'some/config/path1',
+            'some/config/path2'
+        ];
+
+        $pathQuestionMock = $this->getMockBuilder(Question::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->inputMock->expects($this->once())
+            ->method('getArgument')
+            ->with(SensitiveConfigSetCommand::INPUT_ARGUMENT_PATH)
+            ->willReturn('some/not_exist/config');
+        $this->questionFactoryMock->expects($this->once())
+            ->method('create')
+            ->with(['question' => 'Please enter config path: '])
+            ->willReturn($pathQuestionMock);
+
+        $this->model->getValues(
+            $this->inputMock,
+            $this->outputMock,
+            $configPaths
+        );
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     */
+    public function testEmptyValue()
+    {
+        $configPaths = [
+            'some/config/path1',
+            'some/config/path2'
+        ];
+        $message = 'exception message';
+
+        $pathQuestionMock = $this->getMockBuilder(Question::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $valueQuestionMock = $this->getMockBuilder(Question::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->questionHelperMock->expects($this->once())
+            ->method('ask')
+            ->with($this->inputMock, $this->outputMock, $valueQuestionMock)
+            ->willThrowException(new LocalizedException(__($message)));
+        $this->inputMock->expects($this->exactly(2))
+            ->method('getArgument')
+            ->withConsecutive(
+                [SensitiveConfigSetCommand::INPUT_ARGUMENT_PATH],
+                [SensitiveConfigSetCommand::INPUT_ARGUMENT_VALUE]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $configPaths[0],
+                null
+            );
+        $this->questionFactoryMock->expects($this->exactly(2))
+            ->method('create')
+            ->withConsecutive(
+                [['question' => 'Please enter config path: ']],
+                [['question' => 'Please enter value: ']]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $pathQuestionMock,
+                $valueQuestionMock
+            );
+
+        $this->model->getValues(
+            $this->inputMock,
+            $this->outputMock,
+            $configPaths
+        );
+    }
+}
diff --git a/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSetCommandTest.php b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSetCommandTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..b305ed8249fbff8d80854385f1f3fa79d1204541
--- /dev/null
+++ b/app/code/Magento/Deploy/Test/Unit/Console/Command/App/SensitiveConfigSetCommandTest.php
@@ -0,0 +1,262 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Test\Unit\Console\Command\App;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorFactory;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorInterface;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSetCommand;
+use Magento\Deploy\Model\ConfigWriter;
+use Magento\Framework\App\Config\CommentParserInterface;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\Scope\ValidatorInterface;
+use Magento\Framework\Config\File\ConfigFilePool;
+use Magento\Framework\Console\Cli;
+use Magento\Framework\Exception\FileSystemException;
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Phrase;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+use Symfony\Component\Console\Tester\CommandTester;
+
+/**
+ * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
+ */
+class SensitiveConfigSetCommandTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var ConfigFilePool|MockObject
+     */
+    private $configFilePoolMock;
+
+    /**
+     * @var CommentParserInterface|MockObject
+     */
+    private $commentParserMock;
+
+    /**
+     * @var ConfigWriter|MockObject
+     */
+    private $configWriterMock;
+
+    /**
+     * @var ValidatorInterface|MockObject
+     */
+    private $scopeValidatorMock;
+
+    /**
+     * @var CollectorFactory|MockObject
+     */
+    private $collectorFactoryMock;
+
+    /**
+     * @var SensitiveConfigSetCommand
+     */
+    private $command;
+
+    public function setUp()
+    {
+        $this->configFilePoolMock = $this->getMockBuilder(ConfigFilePool::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->commentParserMock = $this->getMockBuilder(CommentParserInterface::class)
+            ->getMockForAbstractClass();
+        $this->configWriterMock = $this->getMockBuilder(ConfigWriter::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->scopeValidatorMock = $this->getMockBuilder(ValidatorInterface::class)
+            ->getMockForAbstractClass();
+        $this->collectorFactoryMock = $this->getMockBuilder(CollectorFactory::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->command = new SensitiveConfigSetCommand(
+            $this->configFilePoolMock,
+            $this->commentParserMock,
+            $this->configWriterMock,
+            $this->scopeValidatorMock,
+            $this->collectorFactoryMock
+        );
+    }
+
+    public function testConfigFileNotExist()
+    {
+        $this->configFilePoolMock->expects($this->once())
+            ->method('getPathsByPool')
+            ->with(ConfigFilePool::LOCAL)
+            ->willReturn([
+                ConfigFilePool::APP_CONFIG => 'config.local.php'
+            ]);
+        $this->scopeValidatorMock->expects($this->once())
+            ->method('isValid')
+            ->with('default', '')
+            ->willReturn(true);
+        $this->commentParserMock->expects($this->any())
+            ->method('execute')
+            ->willThrowException(new FileSystemException(new Phrase('some message')));
+
+        $tester = new CommandTester($this->command);
+        $tester->execute([
+            'path' => 'some/path',
+            'value' => 'some value'
+        ]);
+
+        $this->assertEquals(
+            Cli::RETURN_FAILURE,
+            $tester->getStatusCode()
+        );
+        $this->assertContains(
+            'File app/etc/config.local.php can\'t be read. '
+            . 'Please check if it exists and has read permissions.',
+            $tester->getDisplay()
+        );
+    }
+
+    public function testWriterException()
+    {
+        $exceptionMessage = 'exception';
+        $this->scopeValidatorMock->expects($this->once())
+            ->method('isValid')
+            ->with('default', '')
+            ->willReturn(true);
+        $this->commentParserMock->expects($this->once())
+            ->method('execute')
+            ->willReturn([
+                'some/config/path1',
+                'some/config/path2'
+            ]);
+        $collectorMock = $this->getMockBuilder(CollectorInterface::class)
+            ->getMockForAbstractClass();
+        $collectorMock->expects($this->once())
+            ->method('getValues')
+            ->willReturn(['some/config/pathNotExist' => 'value']);
+        $this->collectorFactoryMock->expects($this->once())
+            ->method('create')
+            ->with(CollectorFactory::TYPE_SIMPLE)
+            ->willReturn($collectorMock);
+        $this->configWriterMock->expects($this->once())
+            ->method('save')
+            ->willThrowException(new LocalizedException(__($exceptionMessage)));
+
+        $tester = new CommandTester($this->command);
+        $tester->execute([
+            'path' => 'some/config/pathNotExist',
+            'value' => 'some value'
+        ]);
+
+        $this->assertEquals(
+            Cli::RETURN_FAILURE,
+            $tester->getStatusCode()
+        );
+        $this->assertContains(
+            $exceptionMessage,
+            $tester->getDisplay()
+        );
+    }
+
+    public function testEmptyConfigPaths()
+    {
+        $this->scopeValidatorMock->expects($this->once())
+            ->method('isValid')
+            ->with('default', '')
+            ->willReturn(true);
+        $this->commentParserMock->expects($this->once())
+            ->method('execute')
+            ->willReturn([]);
+
+        $tester = new CommandTester($this->command);
+        $tester->execute([
+            'path' => 'some/config/pathNotExist',
+            'value' => 'some value'
+        ]);
+
+        $this->assertEquals(
+            Cli::RETURN_FAILURE,
+            $tester->getStatusCode()
+        );
+        $this->assertContains(
+            'There are no sensitive configurations to fill',
+            $tester->getDisplay()
+        );
+    }
+
+    public function testExecute()
+    {
+        $collectedValues = ['some/config/path1' => 'value'];
+        $this->scopeValidatorMock->expects($this->once())
+            ->method('isValid')
+            ->with('default', '')
+            ->willReturn(true);
+        $this->commentParserMock->expects($this->once())
+            ->method('execute')
+            ->willReturn([
+                'some/config/path1',
+                'some/config/path2'
+            ]);
+        $collectorMock = $this->getMockBuilder(CollectorInterface::class)
+            ->getMockForAbstractClass();
+        $collectorMock->expects($this->once())
+            ->method('getValues')
+            ->willReturn($collectedValues);
+        $this->collectorFactoryMock->expects($this->once())
+            ->method('create')
+            ->with(CollectorFactory::TYPE_SIMPLE)
+            ->willReturn($collectorMock);
+        $this->configWriterMock->expects($this->once())
+            ->method('save')
+            ->with($collectedValues, ScopeConfigInterface::SCOPE_TYPE_DEFAULT, '');
+
+        $tester = new CommandTester($this->command);
+        $tester->execute([]);
+
+        $this->assertEquals(
+            Cli::RETURN_SUCCESS,
+            $tester->getStatusCode()
+        );
+        $this->assertContains(
+            'Configuration value saved in',
+            $tester->getDisplay()
+        );
+    }
+
+    public function testExecuteInteractive()
+    {
+        $collectedValues = ['some/config/path1' => 'value'];
+        $this->scopeValidatorMock->expects($this->once())
+            ->method('isValid')
+            ->with('default', '')
+            ->willReturn(true);
+        $this->commentParserMock->expects($this->once())
+            ->method('execute')
+            ->willReturn([
+                'some/config/path1',
+                'some/config/path2',
+                'some/config/path3'
+            ]);
+        $collectorMock = $this->getMockBuilder(CollectorInterface::class)
+            ->getMockForAbstractClass();
+        $collectorMock->expects($this->once())
+            ->method('getValues')
+            ->willReturn($collectedValues);
+        $this->collectorFactoryMock->expects($this->once())
+            ->method('create')
+            ->with(CollectorFactory::TYPE_INTERACTIVE)
+            ->willReturn($collectorMock);
+        $this->configWriterMock->expects($this->once())
+            ->method('save')
+            ->with($collectedValues, ScopeConfigInterface::SCOPE_TYPE_DEFAULT, '');
+
+        $tester = new CommandTester($this->command);
+        $tester->execute(['--interactive' => true]);
+
+        $this->assertEquals(
+            Cli::RETURN_SUCCESS,
+            $tester->getStatusCode()
+        );
+        $this->assertContains(
+            'Configuration values saved in',
+            $tester->getDisplay()
+        );
+    }
+}
diff --git a/app/code/Magento/Deploy/Test/Unit/Model/ConfigWriterTest.php b/app/code/Magento/Deploy/Test/Unit/Model/ConfigWriterTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..9ac0097d5f73b69ea9bf02cafa7cd4773d9a810e
--- /dev/null
+++ b/app/code/Magento/Deploy/Test/Unit/Model/ConfigWriterTest.php
@@ -0,0 +1,93 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Test\Unit\Model;
+
+use Magento\Deploy\Model\ConfigWriter;
+use Magento\Framework\App\DeploymentConfig\Writer;
+use Magento\Framework\Config\File\ConfigFilePool;
+use Magento\Framework\Stdlib\ArrayManager;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+
+class ConfigWriterTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var Writer|MockObject
+     */
+    private $writerMock;
+
+    /**
+     * @var ArrayManager|MockObject
+     */
+    private $arrayManagerMock;
+
+    /**
+     * @var ConfigWriter
+     */
+    private $model;
+
+    public function setUp()
+    {
+        $this->arrayManagerMock = $this->getMockBuilder(ArrayManager::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->writerMock = $this->getMockBuilder(Writer::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->model = new ConfigWriter(
+            $this->writerMock,
+            $this->arrayManagerMock
+        );
+    }
+
+    public function testSave()
+    {
+        $values = [
+            'some1/config1/path1' => 'someValue1',
+            'some2/config2/path2' => 'someValue2',
+            'some3/config3/path3' => 'someValue3'
+        ];
+        $config = ['system' => []];
+
+        $this->arrayManagerMock->expects($this->exactly(3))
+            ->method('set')
+            ->withConsecutive(
+                ['system/scope/scope_code/some1/config1/path1', $this->anything(), 'someValue1'],
+                ['system/scope/scope_code/some2/config2/path2', $this->anything(), 'someValue2'],
+                ['system/scope/scope_code/some3/config3/path3', $this->anything(), 'someValue3']
+            )
+            ->willReturn($config);
+        $this->writerMock->expects($this->once())
+            ->method('saveConfig')
+            ->with([ConfigFilePool::APP_CONFIG => $config]);
+
+        $this->model->save($values, 'scope', 'scope_code');
+    }
+
+    public function testSaveDefaultScope()
+    {
+        $values = [
+            'some1/config1/path1' => 'someValue1',
+            'some2/config2/path2' => 'someValue2',
+            'some3/config3/path3' => 'someValue3'
+        ];
+        $config = ['system' => []];
+
+        $this->arrayManagerMock->expects($this->exactly(3))
+            ->method('set')
+            ->withConsecutive(
+                ['system/default/some1/config1/path1', $this->anything(), 'someValue1'],
+                ['system/default/some2/config2/path2', $this->anything(), 'someValue2'],
+                ['system/default/some3/config3/path3', $this->anything(), 'someValue3']
+            )
+            ->willReturn($config);
+        $this->writerMock->expects($this->once())
+            ->method('saveConfig')
+            ->with([ConfigFilePool::APP_CONFIG => $config]);
+
+        $this->model->save($values);
+    }
+}
diff --git a/app/code/Magento/Deploy/composer.json b/app/code/Magento/Deploy/composer.json
index ed0b8520ca645afa8af2506616f9dccde6965f08..436c3a6451c39b3e65ae65e3740b402bbc75fe80 100644
--- a/app/code/Magento/Deploy/composer.json
+++ b/app/code/Magento/Deploy/composer.json
@@ -6,7 +6,8 @@
         "magento/framework": "100.2.*",
         "magento/module-store": "100.2.*",
         "magento/module-require-js": "100.2.*",
-        "magento/module-user": "100.2.*"
+        "magento/module-user": "100.2.*",
+        "magento/module-config": "100.2.*"
     },
     "type": "magento2-module",
     "version": "100.2.0-dev",
diff --git a/app/code/Magento/Deploy/etc/di.xml b/app/code/Magento/Deploy/etc/di.xml
index 68fa7d909e4df8a3b13f3ef01a8f178d804feb4d..6751dd1e0b161dfee948436818a7f38c50025daf 100644
--- a/app/code/Magento/Deploy/etc/di.xml
+++ b/app/code/Magento/Deploy/etc/di.xml
@@ -26,6 +26,7 @@
                 <item name="setModeCommand" xsi:type="object">Magento\Deploy\Console\Command\SetModeCommand</item>
                 <item name="showModeCommand" xsi:type="object">Magento\Deploy\Console\Command\ShowModeCommand</item>
                 <item name="dumpApplicationCommand" xsi:type="object">\Magento\Deploy\Console\Command\App\ApplicationDumpCommand</item>
+                <item name="sensitiveConfigSetCommand" xsi:type="object">\Magento\Deploy\Console\Command\App\SensitiveConfigSetCommand</item>
             </argument>
         </arguments>
     </type>
@@ -34,4 +35,12 @@
             <argument name="shell" xsi:type="object">Magento\Framework\App\Shell</argument>
         </arguments>
     </type>
+    <type name="Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorFactory">
+        <arguments>
+            <argument name="types" xsi:type="array">
+                <item name="interactive" xsi:type="string">Magento\Deploy\Console\Command\App\SensitiveConfigSet\InteractiveCollector</item>
+                <item name="simple" xsi:type="string">Magento\Deploy\Console\Command\App\SensitiveConfigSet\SimpleCollector</item>
+            </argument>
+        </arguments>
+    </type>
 </config>
diff --git a/app/code/Magento/Fedex/etc/di.xml b/app/code/Magento/Fedex/etc/di.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e2f5142cde96b5f82c10175da290e680e79f419c
--- /dev/null
+++ b/app/code/Magento/Fedex/etc/di.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
+    <type name="Magento\Config\Model\Config\Export\ExcludeList">
+        <arguments>
+            <argument name="configs" xsi:type="array">
+                <item name="carriers/fedex/account" xsi:type="string">1</item>
+                <item name="carriers/fedex/key" xsi:type="string">1</item>
+                <item name="carriers/fedex/meter_number" xsi:type="string">1</item>
+                <item name="carriers/fedex/password" xsi:type="string">1</item>
+            </argument>
+        </arguments>
+    </type>
+</config>
\ No newline at end of file
diff --git a/app/code/Magento/Payment/Test/Unit/Block/Info/SubstitutionTest.php b/app/code/Magento/Payment/Test/Unit/Block/Info/SubstitutionTest.php
index 78946d236391e90eccec0d29def00f810db91eea..f4a2b1a81d7feeead8c6365f5291b6dd9466f02a 100644
--- a/app/code/Magento/Payment/Test/Unit/Block/Info/SubstitutionTest.php
+++ b/app/code/Magento/Payment/Test/Unit/Block/Info/SubstitutionTest.php
@@ -3,9 +3,6 @@
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-
-// @codingStandardsIgnoreFile
-
 namespace Magento\Payment\Test\Unit\Block\Info;
 
 /**
@@ -31,71 +28,23 @@ class SubstitutionTest extends \PHPUnit_Framework_TestCase
     protected function setUp()
     {
         $this->objectManager = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
-
-        $this->layout = $this->getMockBuilder(
-            \Magento\Framework\View\LayoutInterface::class
-        )->disableOriginalConstructor()->setMethods(
-            []
-        )->getMock();
-
-        $eventManager = $this->getMockBuilder(
-            \Magento\Framework\Event\ManagerInterface::class
-        )->disableOriginalConstructor()->setMethods(
-            []
-        )->getMock();
-
-        $scopeConfig = $this->getMockBuilder(
-            \Magento\Framework\App\Config\ScopeConfigInterface::class
-        )->disableOriginalConstructor()->setMethods(
-            []
-        )->getMock();
-        $scopeConfig->expects(
-            $this->any()
-        )->method(
-            'getValue'
-        )->with(
-            $this->stringContains(
-                'advanced/modules_disable_output/'
-            ),
-            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
-        )->will(
-            $this->returnValue(
-                false
-            )
-        );
-
-        $context = $this->getMockBuilder(
-            \Magento\Framework\View\Element\Template\Context::class
-        )->disableOriginalConstructor()->setMethods(
-            ['getLayout', 'getEventManager', 'getScopeConfig']
-        )->getMock();
-        $context->expects(
-            $this->any()
-        )->method(
-            'getLayout'
-        )->will(
-            $this->returnValue(
-                $this->layout
-            )
-        );
-        $context->expects(
-            $this->any()
-        )->method(
-            'getEventManager'
-        )->will(
-            $this->returnValue(
-                $eventManager
-            )
-        );
-        $context->expects(
-            $this->any()
-        )->method(
-            'getScopeConfig'
-        )->will(
-            $this->returnValue(
-                $scopeConfig
-            )
-        );
+        $this->layout = $this->getMockBuilder(\Magento\Framework\View\LayoutInterface::class)
+            ->disableOriginalConstructor()
+            ->setMethods([])
+            ->getMock();
+        $eventManager = $this->getMockBuilder(\Magento\Framework\Event\ManagerInterface::class)
+            ->disableOriginalConstructor()
+            ->setMethods([])
+            ->getMock();
+        $context = $this->getMockBuilder(\Magento\Framework\View\Element\Template\Context::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['getLayout', 'getEventManager', 'getScopeConfig'])
+            ->getMock();
+        $context->expects($this->any())
+            ->method('getLayout')
+            ->willReturn($this->layout);
+        $context->expects($this->any())->method('getEventManager')
+            ->willReturn($eventManager);
 
         $this->block = $this->objectManager->getObject(
             \Magento\Payment\Block\Info\Substitution::class,
@@ -110,52 +59,45 @@ class SubstitutionTest extends \PHPUnit_Framework_TestCase
 
     public function testBeforeToHtml()
     {
-        $abstractBlock = $this->getMockBuilder(
-            \Magento\Framework\View\Element\AbstractBlock::class
-        )->disableOriginalConstructor()->setMethods(
-            []
-        )->getMock();
-        $childAbstractBlock = clone($abstractBlock);
-
-        $abstractBlock->expects($this->any())->method('getParentBlock')->will($this->returnValue($childAbstractBlock));
+        $abstractBlock = $this->getMockBuilder(\Magento\Framework\View\Element\AbstractBlock::class)
+            ->disableOriginalConstructor()
+            ->setMethods([])
+            ->getMock();
+        $childAbstractBlock = clone $abstractBlock;
+
+        $abstractBlock->expects($this->any())
+            ->method('getParentBlock')
+            ->willReturn($childAbstractBlock);
+        $this->layout->expects($this->any())
+            ->method('getParentName')
+            ->willReturn('parentName');
+        $this->layout->expects($this->any())
+            ->method('getBlock')
+            ->willReturn($abstractBlock);
+
+        $infoMock = $this->getMockBuilder(\Magento\Payment\Model\Info::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $methodMock = $this->getMockBuilder(\Magento\Payment\Model\MethodInterface::class)
+            ->getMockForAbstractClass();
+        $infoMock->expects($this->once())
+            ->method('getMethodInstance')
+            ->willReturn($methodMock);
 
-        $this->layout->expects($this->any())->method('getParentName')->will($this->returnValue('parentName'));
-        $this->layout->expects($this->any())->method('getBlock')->will($this->returnValue($abstractBlock));
-
-        $infoMock = $this->getMockBuilder(
-            \Magento\Payment\Model\Info::class
-        )->disableOriginalConstructor()->setMethods(
-            []
-        )->getMock();
-        $methodMock = $this->getMockBuilder(
-            \Magento\Payment\Model\MethodInterface::class
-        )->getMockForAbstractClass();
-        $infoMock->expects($this->once())->method('getMethodInstance')->will($this->returnValue($methodMock));
         $this->block->setInfo($infoMock);
 
         $fakeBlock = new \StdClass();
-        $this->layout->expects(
-            $this->any()
-        )->method(
-            'createBlock'
-        )->with(
-            \Magento\Framework\View\Element\Template::class,
-            '',
-            ['data' => ['method' => $methodMock, 'template' => 'Magento_Payment::info/substitution.phtml']]
-        )->will(
-                $this->returnValue(
-                    $fakeBlock
-                )
-            );
-
-        $childAbstractBlock->expects(
-            $this->any()
-        )->method(
-            'setChild'
-        )->with(
-            'order_payment_additional',
-            $fakeBlock
-        );
+        $this->layout->expects($this->any())
+            ->method('createBlock')
+            ->with(
+                \Magento\Framework\View\Element\Template::class,
+                '',
+                ['data' => ['method' => $methodMock, 'template' => 'Magento_Payment::info/substitution.phtml']]
+            )->willReturn($fakeBlock);
+
+        $childAbstractBlock->expects($this->any())
+            ->method('setChild')
+            ->with('order_payment_additional', $fakeBlock);
 
         $this->block->toHtml();
     }
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Billing/AgreementsTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Billing/AgreementsTest.php
index f478ea085e47a378573fc945a1afdf77b6eb942a..64f278c8e9f118b6b7e564da0c6de434052d4184 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Billing/AgreementsTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Billing/AgreementsTest.php
@@ -243,10 +243,6 @@ class AgreementsTest extends \PHPUnit_Framework_TestCase
             ->expects($this->at(1))
             ->method('dispatch')
             ->with('view_block_abstract_to_html_after', ['block' => $this->block, 'transport' => $transport]);
-        $this->scopeConfig
-            ->expects($this->once())
-            ->method('getValue')
-            ->willReturn(false);
         $this->urlBuilder->expects($this->once())->method('getUrl')->with('paypal/billing_agreement/startWizard', []);
         $this->block->toHtml();
     }
diff --git a/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php b/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php
index cf16349e5873468cef013f42601895a28244cba5..17468c02578693be75efd4af8bbef3f73d868871 100644
--- a/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php
+++ b/app/code/Magento/Paypal/Test/Unit/Block/Express/ReviewTest.php
@@ -3,11 +3,9 @@
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-
 namespace Magento\Paypal\Test\Unit\Block\Express;
 
 use Magento\Paypal\Block\Express\Review;
-use Magento\Quote\Model\Quote\Address\Rate;
 
 /**
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
@@ -35,14 +33,6 @@ class ReviewTest extends \PHPUnit_Framework_TestCase
 
         $layout = $this->getMock(\Magento\Framework\View\LayoutInterface::class, [], [], '', false);
         $eventManager = $this->getMock(\Magento\Framework\Event\ManagerInterface::class, [], [], '', false);
-        $scopeConfig = $this->getMock(\Magento\Framework\App\Config\ScopeConfigInterface::class, [], [], '', false);
-
-        $scopeConfig->expects($this->any())
-            ->method('getValue')
-            ->with(
-                $this->stringContains('advanced/modules_disable_output/'),
-                \Magento\Store\Model\ScopeInterface::SCOPE_STORE
-            )->will($this->returnValue(false));
 
         $urlBuilder = $this->getMock(\Magento\Framework\UrlInterface::class);
         $urlBuilder->expects($this->any())->method('getUrl')->will($this->returnArgument(0));
@@ -60,7 +50,6 @@ class ReviewTest extends \PHPUnit_Framework_TestCase
 
         $context->expects($this->any())->method('getLayout')->will($this->returnValue($layout));
         $context->expects($this->any())->method('getEventManager')->will($this->returnValue($eventManager));
-        $context->expects($this->any())->method('getScopeConfig')->will($this->returnValue($scopeConfig));
         $context->expects($this->any())->method('getRequest')->will($this->returnValue($this->request));
         $context->expects($this->any())->method('getAssetRepository')->will($this->returnValue($this->assetRepo));
         $context->expects($this->any())->method('getUrlBuilder')->will($this->returnValue($urlBuilder));
diff --git a/app/code/Magento/Persistent/Test/Unit/Block/Header/AdditionalTest.php b/app/code/Magento/Persistent/Test/Unit/Block/Header/AdditionalTest.php
index 44b494f2a41df8c7394c83396387d577bbb5e641..f80c1018d322c35bd8dd823e2c6e1d0d58fca96b 100644
--- a/app/code/Magento/Persistent/Test/Unit/Block/Header/AdditionalTest.php
+++ b/app/code/Magento/Persistent/Test/Unit/Block/Header/AdditionalTest.php
@@ -149,8 +149,7 @@ class AdditionalTest extends \PHPUnit_Framework_TestCase
             '',
             false,
             true,
-            true,
-            ['getValue']
+            true
         );
         $this->cacheStateMock = $this->getMockForAbstractClass(
             \Magento\Framework\App\Cache\StateInterface::class,
@@ -267,12 +266,6 @@ class AdditionalTest extends \PHPUnit_Framework_TestCase
         $this->eventManagerMock->expects($this->at(1))
             ->method('dispatch')
             ->with('view_block_abstract_to_html_after');
-        $this->scopeConfigMock->expects($this->once())
-            ->method('getValue')
-            ->with(
-                'advanced/modules_disable_output/Magento_Persistent',
-                \Magento\Store\Model\ScopeInterface::SCOPE_STORE
-            )->willReturn(false);
 
         // get cache
         $this->cacheStateMock->expects($this->at(0))
diff --git a/app/code/Magento/Store/Model/Scope/Validator.php b/app/code/Magento/Store/Model/Scope/Validator.php
new file mode 100644
index 0000000000000000000000000000000000000000..f2222fdc476a9a61ee9ed37c285332561f6dd43b
--- /dev/null
+++ b/app/code/Magento/Store/Model/Scope/Validator.php
@@ -0,0 +1,88 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Store\Model\Scope;
+
+use InvalidArgumentException;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\Scope\ValidatorInterface;
+use Magento\Framework\App\ScopeResolverPool;
+use Magento\Framework\Exception\LocalizedException;
+use Magento\Framework\Exception\NoSuchEntityException;
+
+/**
+ * Class Validator validates scope and scope code.
+ */
+class Validator implements ValidatorInterface
+{
+    /**
+     * @var ScopeResolverPool
+     */
+    private $scopeResolverPool;
+
+    /**
+     * @param ScopeResolverPool $scopeResolverPool
+     */
+    public function __construct(ScopeResolverPool $scopeResolverPool)
+    {
+        $this->scopeResolverPool = $scopeResolverPool;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function isValid($scope, $scopeCode = null)
+    {
+        if ($scope === ScopeConfigInterface::SCOPE_TYPE_DEFAULT && empty($scopeCode)) {
+            return true;
+        }
+
+        if ($scope === ScopeConfigInterface::SCOPE_TYPE_DEFAULT && !empty($scopeCode)) {
+            throw new LocalizedException(__(
+                'The "%1" scope can\'t include a scope code. Try again without entering a scope code.',
+                ScopeConfigInterface::SCOPE_TYPE_DEFAULT
+            ));
+        }
+
+        if (empty($scope)) {
+            throw new LocalizedException(__('Enter a scope before proceeding.'));
+        }
+
+        $this->validateScopeCode($scopeCode);
+
+        try {
+            $scopeResolver = $this->scopeResolverPool->get($scope);
+            $scopeResolver->getScope($scopeCode)->getId();
+        } catch (InvalidArgumentException $e) {
+            throw new LocalizedException(__('The "%1" value doesn\'t exist. Enter another value.', $scope));
+        } catch (NoSuchEntityException $e) {
+            throw new LocalizedException(__('The "%1" value doesn\'t exist. Enter another value.', $scopeCode));
+        }
+
+        return true;
+    }
+
+    /**
+     * Validate scope code
+     * Throw exception if not valid.
+     *
+     * @param string $scopeCode
+     * @return void
+     * @throws LocalizedException if scope code is empty or has a wrong format
+     */
+    private function validateScopeCode($scopeCode)
+    {
+        if (empty($scopeCode)) {
+            throw new LocalizedException(__('Enter a scope code before proceeding.'));
+        }
+
+        if (!preg_match('/^[a-z]+[a-z0-9_]*$/', $scopeCode)) {
+            throw new LocalizedException(__(
+                'The scope code can include only lowercase letters (a-z), numbers (0-9) and underscores (_). '
+                . 'Also, the first character must be a letter.'
+            ));
+        }
+    }
+}
diff --git a/app/code/Magento/Store/Test/Unit/Model/Scope/ValidatorTest.php b/app/code/Magento/Store/Test/Unit/Model/Scope/ValidatorTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..51c58739f5ff5c10f19ebcbef9d7a92df33611b0
--- /dev/null
+++ b/app/code/Magento/Store/Test/Unit/Model/Scope/ValidatorTest.php
@@ -0,0 +1,138 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Store\Test\Unit\Model\Scope;
+
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\ScopeInterface;
+use Magento\Framework\App\ScopeResolverInterface;
+use Magento\Framework\App\ScopeResolverPool;
+use Magento\Framework\Exception\NoSuchEntityException;
+use Magento\Store\Model\Scope\Validator;
+use PHPUnit_Framework_MockObject_MockObject as MockObject;
+
+class ValidatorTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var Validator
+     */
+    private $model;
+
+    /**
+     * @var ScopeResolverPool|MockObject
+     */
+    private $scopeResolverPoolMock;
+
+    protected function setUp()
+    {
+        $this->scopeResolverPoolMock = $this->getMockBuilder(ScopeResolverPool::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $this->model = new Validator(
+            $this->scopeResolverPoolMock
+        );
+    }
+
+    public function testIsValid()
+    {
+        $scope = 'not_default_scope';
+        $scopeCode = 'not_exist_scope_code';
+
+        $scopeResolver = $this->getMockBuilder(ScopeResolverInterface::class)
+            ->getMockForAbstractClass();
+        $scopeObject = $this->getMockBuilder(ScopeInterface::class)
+            ->getMockForAbstractClass();
+        $scopeResolver->expects($this->once())
+            ->method('getScope')
+            ->with($scopeCode)
+            ->willReturn($scopeObject);
+        $this->scopeResolverPoolMock->expects($this->once())
+            ->method('get')
+            ->with($scope)
+            ->willReturn($scopeResolver);
+
+        $this->assertTrue($this->model->isValid($scope, $scopeCode));
+    }
+
+    public function testIsValidDefault()
+    {
+        $this->assertTrue($this->model->isValid(ScopeConfigInterface::SCOPE_TYPE_DEFAULT));
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage The "default" scope can't include a scope code. Try again without entering a scope
+     */
+    public function testNotEmptyScopeCodeForDefaultScope()
+    {
+        $this->model->isValid(ScopeConfigInterface::SCOPE_TYPE_DEFAULT, 'some_code');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage Enter a scope before proceeding.
+     */
+    public function testEmptyScope()
+    {
+        $this->model->isValid('', 'some_code');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage Enter a scope code before proceeding.
+     */
+    public function testEmptyScopeCode()
+    {
+        $this->model->isValid('not_default_scope', '');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage The scope code can include only lowercase letters (a-z), numbers (0-9) and underscores
+     */
+    public function testWrongScopeCodeFormat()
+    {
+        $this->model->isValid('not_default_scope', '123');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage The "not_default_scope" value doesn't exist. Enter another value.
+     */
+    public function testScopeNotExist()
+    {
+        $scope = 'not_default_scope';
+        $this->scopeResolverPoolMock->expects($this->once())
+            ->method('get')
+            ->with($scope)
+            ->willThrowException(new \InvalidArgumentException());
+
+        $this->model->isValid($scope, 'scope_code');
+    }
+
+    /**
+     * @expectedException \Magento\Framework\Exception\LocalizedException
+     * @expectedExceptionMessage The "not_exist_scope_code" value doesn't exist. Enter another value.
+     */
+    public function testScopeCodeNotExist()
+    {
+        $scope = 'not_default_scope';
+        $scopeCode = 'not_exist_scope_code';
+
+        $scopeResolver = $this->getMockBuilder(ScopeResolverInterface::class)
+            ->getMockForAbstractClass();
+        $scopeResolver->expects($this->once())
+            ->method('getScope')
+            ->with($scopeCode)
+            ->willThrowException(new NoSuchEntityException());
+        $this->scopeResolverPoolMock->expects($this->once())
+            ->method('get')
+            ->with($scope)
+            ->willReturn($scopeResolver);
+
+        $this->model->isValid($scope, $scopeCode);
+    }
+}
diff --git a/app/code/Magento/Store/etc/di.xml b/app/code/Magento/Store/etc/di.xml
index 48a37dec7d73a9ae9fda07cce9c709b3d0b94284..d3b91a57ef3141fb054239ebd919cb48d77ad5e8 100644
--- a/app/code/Magento/Store/etc/di.xml
+++ b/app/code/Magento/Store/etc/di.xml
@@ -25,6 +25,7 @@
     <preference for="Magento\Framework\App\ScopeFallbackResolverInterface" type="Magento\Store\Model\ScopeFallbackResolver"/>
     <preference for="Magento\Framework\App\ScopeTreeProviderInterface" type="Magento\Store\Model\ScopeTreeProvider"/>
     <preference for="Magento\Framework\App\ScopeValidatorInterface" type="Magento\Store\Model\ScopeValidator"/>
+    <preference for="Magento\Framework\App\Scope\ValidatorInterface" type="Magento\Store\Model\Scope\Validator"/>
     <type name="Magento\Framework\App\Response\Http">
         <plugin name="genericHeaderPlugin" type="Magento\Framework\App\Response\HeaderManager"/>
     </type>
diff --git a/app/code/Magento/Widget/Test/Unit/Block/Adminhtml/Widget/Instance/Edit/Chooser/ContainerTest.php b/app/code/Magento/Widget/Test/Unit/Block/Adminhtml/Widget/Instance/Edit/Chooser/ContainerTest.php
index 837b7f7135d29d22580aaf1103b9a5c3ae2579d2..c23a8019e37eeb3ebebd8662aea23a773dff036e 100644
--- a/app/code/Magento/Widget/Test/Unit/Block/Adminhtml/Widget/Instance/Edit/Chooser/ContainerTest.php
+++ b/app/code/Magento/Widget/Test/Unit/Block/Adminhtml/Widget/Instance/Edit/Chooser/ContainerTest.php
@@ -67,7 +67,6 @@ class ContainerTest extends AbstractContainerTest
             . '<option value="content.top" >Main Content Top</option></select>';
 
         $this->eventManagerMock->expects($this->exactly(2))->method('dispatch')->willReturn(true);
-        $this->scopeConfigMock->expects($this->once())->method('getValue')->willReturn(false);
 
         $this->themeCollectionFactoryMock->expects($this->once())
             ->method('create')
@@ -154,7 +153,6 @@ class ContainerTest extends AbstractContainerTest
             . '<option value="sidebar.main" >Sidebar Main</option></select>';
 
         $this->eventManagerMock->expects($this->exactly(2))->method('dispatch')->willReturn(true);
-        $this->scopeConfigMock->expects($this->once())->method('getValue')->willReturn(false);
 
         $this->themeCollectionFactoryMock->expects($this->once())
             ->method('create')
@@ -285,7 +283,6 @@ class ContainerTest extends AbstractContainerTest
             . '<option value="sidebar.main" >Sidebar Main</option></select>';
 
         $this->eventManagerMock->expects($this->exactly(2))->method('dispatch')->willReturn(true);
-        $this->scopeConfigMock->expects($this->once())->method('getValue')->willReturn(false);
 
         $this->themeCollectionFactoryMock->expects($this->once())
             ->method('create')
@@ -403,7 +400,6 @@ class ContainerTest extends AbstractContainerTest
             . 'Sidebar Main</option></select>';
 
         $this->eventManagerMock->expects($this->exactly(2))->method('dispatch')->willReturn(true);
-        $this->scopeConfigMock->expects($this->once())->method('getValue')->willReturn(false);
 
         $this->themeCollectionFactoryMock->expects($this->once())
             ->method('create')
diff --git a/app/code/Magento/Wishlist/Test/Unit/Model/Rss/WishlistTest.php b/app/code/Magento/Wishlist/Test/Unit/Model/Rss/WishlistTest.php
index b9dcc8d6fe73f500b1d314b90bf992c672fe14cf..e9c22670b1a104a46aa30525c70593ee40bdf81f 100644
--- a/app/code/Magento/Wishlist/Test/Unit/Model/Rss/WishlistTest.php
+++ b/app/code/Magento/Wishlist/Test/Unit/Model/Rss/WishlistTest.php
@@ -136,7 +136,6 @@ class WishlistTest extends \PHPUnit_Framework_TestCase
         );
         $customerServiceMock = $this->getMock(\Magento\Customer\Api\Data\CustomerInterface::class, [], [], '', false);
         $wishlistSharingUrl = 'wishlist/shared/index/1';
-        $locale = 'en_US';
         $productUrl = 'http://product.url/';
         $productName = 'Product name';
 
@@ -160,25 +159,6 @@ class WishlistTest extends \PHPUnit_Framework_TestCase
         $this->urlBuilderMock->expects($this->once())
             ->method('getUrl')
             ->will($this->returnValue($wishlistSharingUrl));
-        $this->scopeConfig->expects($this->any())
-            ->method('getValue')
-            ->will($this->returnValueMap(
-                    [
-                        [
-                            'advanced/modules_disable_output/Magento_Rss',
-                            \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
-                            null,
-                            null,
-                        ],
-                        [
-                            Data::XML_PATH_DEFAULT_LOCALE,
-                            \Magento\Store\Model\ScopeInterface::SCOPE_STORE,
-                            null,
-                            $locale
-                        ],
-                    ]
-                )
-            );
 
         $staticArgs = [
             'productName' => $productName,
diff --git a/bin/magento b/bin/magento
index 1cb700def7fa7f3faf073dbd7bb0300892b06332..3fa9221763cf5fca0a09eb4bc6f43d3a5cb22a42 100755
--- a/bin/magento
+++ b/bin/magento
@@ -28,5 +28,5 @@ try {
         echo "\n\n";
         $e = $e->getPrevious();
     }
-    exit(Cli::RETURN_FAILURE);
+    exit(Magento\Framework\Console\Cli::RETURN_FAILURE);
 }
diff --git a/composer.json b/composer.json
index 11fe00b7ed45add98a8996bea8a480403d44a53c..16c73d23ef6d8a743ed69cfa53e890e8e2642a7f 100644
--- a/composer.json
+++ b/composer.json
@@ -226,7 +226,7 @@
         "psr-0": {
             "": [
                 "app/code/",
-                "var/generation"
+                "generated/code"
             ]
         },
         "files": [
diff --git a/composer.lock b/composer.lock
index e69e12953fea2c150e1e063ddb9502148aad38ec..43c927cb95a1d5eb07b272dda0b018be12c73fbe 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "01335ef9c76fd6d77bf6bd9236b84d03",
+    "hash": "e5946b0500f46fab5f05e46957258ed4",
     "content-hash": "07be52ec4880d0390acff2dd605a194d",
     "packages": [
         {
@@ -554,16 +554,16 @@
         },
         {
             "name": "magento/magento-composer-installer",
-            "version": "0.1.11",
+            "version": "0.1.12",
             "source": {
                 "type": "git",
                 "url": "https://github.com/magento/magento-composer-installer.git",
-                "reference": "a12b9577cd9859af67d2365ae38d23ddfc57cf4d"
+                "reference": "10c600e88ad34fec71bb6b435ea8415ce92d51de"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/magento/magento-composer-installer/zipball/a12b9577cd9859af67d2365ae38d23ddfc57cf4d",
-                "reference": "a12b9577cd9859af67d2365ae38d23ddfc57cf4d",
+                "url": "https://api.github.com/repos/magento/magento-composer-installer/zipball/10c600e88ad34fec71bb6b435ea8415ce92d51de",
+                "reference": "10c600e88ad34fec71bb6b435ea8415ce92d51de",
                 "shasum": ""
             },
             "require": {
@@ -629,7 +629,7 @@
                 "composer-installer",
                 "magento"
             ],
-            "time": "2016-06-15 04:02:25"
+            "time": "2016-10-06 16:05:07"
         },
         {
             "name": "magento/zendframework1",
@@ -1687,7 +1687,7 @@
         },
         {
             "name": "zendframework/zend-code",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-code.git",
@@ -1740,7 +1740,7 @@
         },
         {
             "name": "zendframework/zend-config",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-config.git",
@@ -1797,7 +1797,7 @@
         },
         {
             "name": "zendframework/zend-console",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-console.git",
@@ -1847,7 +1847,7 @@
         },
         {
             "name": "zendframework/zend-crypt",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-crypt.git",
@@ -1899,7 +1899,7 @@
         },
         {
             "name": "zendframework/zend-di",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-di.git",
@@ -1950,7 +1950,7 @@
         },
         {
             "name": "zendframework/zend-escaper",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-escaper.git",
@@ -1995,7 +1995,7 @@
         },
         {
             "name": "zendframework/zend-eventmanager",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-eventmanager.git",
@@ -2041,7 +2041,7 @@
         },
         {
             "name": "zendframework/zend-filter",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-filter.git",
@@ -2097,7 +2097,7 @@
         },
         {
             "name": "zendframework/zend-form",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-form.git",
@@ -2168,7 +2168,7 @@
         },
         {
             "name": "zendframework/zend-http",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-http.git",
@@ -2219,7 +2219,7 @@
         },
         {
             "name": "zendframework/zend-i18n",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-i18n.git",
@@ -2283,7 +2283,7 @@
         },
         {
             "name": "zendframework/zend-inputfilter",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-inputfilter.git",
@@ -2334,7 +2334,7 @@
         },
         {
             "name": "zendframework/zend-json",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-json.git",
@@ -2388,7 +2388,7 @@
         },
         {
             "name": "zendframework/zend-loader",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-loader.git",
@@ -2433,7 +2433,7 @@
         },
         {
             "name": "zendframework/zend-log",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-log.git",
@@ -2495,7 +2495,7 @@
         },
         {
             "name": "zendframework/zend-math",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-math.git",
@@ -2546,7 +2546,7 @@
         },
         {
             "name": "zendframework/zend-modulemanager",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-modulemanager.git",
@@ -2604,7 +2604,7 @@
         },
         {
             "name": "zendframework/zend-mvc",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-mvc.git",
@@ -2692,7 +2692,7 @@
         },
         {
             "name": "zendframework/zend-serializer",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-serializer.git",
@@ -2745,7 +2745,7 @@
         },
         {
             "name": "zendframework/zend-server",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-server.git",
@@ -2792,7 +2792,7 @@
         },
         {
             "name": "zendframework/zend-servicemanager",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-servicemanager.git",
@@ -2842,7 +2842,7 @@
         },
         {
             "name": "zendframework/zend-soap",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-soap.git",
@@ -2894,7 +2894,7 @@
         },
         {
             "name": "zendframework/zend-stdlib",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-stdlib.git",
@@ -2949,7 +2949,7 @@
         },
         {
             "name": "zendframework/zend-text",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-text.git",
@@ -2996,7 +2996,7 @@
         },
         {
             "name": "zendframework/zend-uri",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-uri.git",
@@ -3044,7 +3044,7 @@
         },
         {
             "name": "zendframework/zend-validator",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-validator.git",
@@ -3109,7 +3109,7 @@
         },
         {
             "name": "zendframework/zend-view",
-            "version": "2.4.10",
+            "version": "2.4.11",
             "source": {
                 "type": "git",
                 "url": "https://github.com/zendframework/zend-view.git",
diff --git a/dev/tests/functional/.htaccess.sample b/dev/tests/functional/.htaccess.sample
index f1e60cf9b67e91779153e4c9d9f780c8f7bc9438..c1fcc7c278c8aa0e79bd372c89ed6ef6e8ec2f0f 100644
--- a/dev/tests/functional/.htaccess.sample
+++ b/dev/tests/functional/.htaccess.sample
@@ -1,6 +1,6 @@
 ##############################################
 ## Allow access to command.php and website.php
-    <FilesMatch "command.php|website.php|export.php">
+    <FilesMatch "command.php|website.php|export.php|pathChecker.php|deleteMagentoGeneratedCode.php">
          order allow,deny
          allow from all
     </FilesMatch>
diff --git a/dev/tests/functional/lib/Magento/Mtf/Util/Command/Cli/Setup.php b/dev/tests/functional/lib/Magento/Mtf/Util/Command/Cli/Setup.php
index 385c11cd74f82e4adbc78f5e26b14e1e03931dae..5f5fe66d96cef6cc25689b315a31d91214e01719 100644
--- a/dev/tests/functional/lib/Magento/Mtf/Util/Command/Cli/Setup.php
+++ b/dev/tests/functional/lib/Magento/Mtf/Util/Command/Cli/Setup.php
@@ -18,6 +18,11 @@ class Setup extends Cli
      */
     const PARAM_SETUP_UNINSTALL = 'setup:uninstall';
 
+    /**
+     * Parameter for DI compile Magento command.
+     */
+    const PARAM_SETUP_DI_COMPILE = 'setup:di:compile';
+
     /**
      * Options for uninstall Magento command.
      *
@@ -34,4 +39,14 @@ class Setup extends Cli
     {
         parent::execute(Setup::PARAM_SETUP_UNINSTALL, $this->options);
     }
+
+    /**
+     * DI Compile.
+     *
+     * @return void
+     */
+    public function diCompile()
+    {
+        parent::execute(Setup::PARAM_SETUP_DI_COMPILE);
+    }
 }
diff --git a/dev/tests/functional/lib/Magento/Mtf/Util/Command/GeneratedCode.php b/dev/tests/functional/lib/Magento/Mtf/Util/Command/GeneratedCode.php
new file mode 100644
index 0000000000000000000000000000000000000000..c82231a9e38f1a10dab7cc822bb4bed2f092cb2d
--- /dev/null
+++ b/dev/tests/functional/lib/Magento/Mtf/Util/Command/GeneratedCode.php
@@ -0,0 +1,49 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Mtf\Util\Command;
+
+use Magento\Mtf\Util\Protocol\CurlInterface;
+use Magento\Mtf\Util\Protocol\CurlTransport;
+
+/**
+ * GeneratedCode removes generated code of Magento (like generated/code and generated/metadata).
+ */
+class GeneratedCode
+{
+    /**
+     * Url to deleteMagentoGeneratedCode.php.
+     */
+    const URL = 'dev/tests/functional/utils/deleteMagentoGeneratedCode.php';
+
+    /**
+     * Curl transport protocol.
+     *
+     * @var CurlTransport
+     */
+    private $transport;
+
+    /**
+     * @param CurlTransport $transport
+     */
+    public function __construct(CurlTransport $transport)
+    {
+        $this->transport = $transport;
+    }
+
+    /**
+     * Remove generated code.
+     *
+     * @return void
+     */
+    public function delete()
+    {
+        $url = $_ENV['app_frontend_url'] . self::URL;
+        $curl = $this->transport;
+        $curl->write($url, [], CurlInterface::GET);
+        $curl->read();
+        $curl->close();
+    }
+}
diff --git a/dev/tests/functional/lib/Magento/Mtf/Util/Command/PathChecker.php b/dev/tests/functional/lib/Magento/Mtf/Util/Command/PathChecker.php
new file mode 100644
index 0000000000000000000000000000000000000000..f61210dc554efc910d4d44b2f5f7bed875d4955d
--- /dev/null
+++ b/dev/tests/functional/lib/Magento/Mtf/Util/Command/PathChecker.php
@@ -0,0 +1,52 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Mtf\Util\Command;
+
+use Magento\Mtf\Util\Protocol\CurlInterface;
+use Magento\Mtf\Util\Protocol\CurlTransport;
+
+/**
+ * PathChecker checks that path to file or directory exists.
+ */
+class PathChecker
+{
+    /**
+     * Url to checkPath.php.
+     */
+    const URL = 'dev/tests/functional/utils/pathChecker.php';
+
+    /**
+     * Curl transport protocol.
+     *
+     * @var CurlTransport
+     */
+    private $transport;
+
+    /**
+     * @param CurlTransport $transport
+     */
+    public function __construct(CurlTransport $transport)
+    {
+        $this->transport = $transport;
+    }
+
+    /**
+     * Check that $path exists.
+     *
+     * @param string $path
+     * @return bool
+     */
+    public function pathExists($path)
+    {
+        $url = $_ENV['app_frontend_url'] . self::URL . '?path=' . urlencode($path);
+        $curl = $this->transport;
+        $curl->write($url, [], CurlInterface::GET);
+        $result = $curl->read();
+        $curl->close();
+
+        return strpos($result, 'path exists: true') !== false;
+    }
+}
diff --git a/dev/tests/functional/tests/app/Magento/Install/Test/Constraint/AssertGenerationFilePathCheck.php b/dev/tests/functional/tests/app/Magento/Install/Test/Constraint/AssertGenerationFilePathCheck.php
new file mode 100644
index 0000000000000000000000000000000000000000..64e46ac9b0289f6d0ee265339eff208c35fe7c3f
--- /dev/null
+++ b/dev/tests/functional/tests/app/Magento/Install/Test/Constraint/AssertGenerationFilePathCheck.php
@@ -0,0 +1,64 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Install\Test\Constraint;
+
+use Magento\Mtf\Constraint\AbstractConstraint;
+use Magento\Mtf\Util\Command\PathChecker;
+
+/**
+ * Assert that path of generated files is correct.
+ */
+class AssertGenerationFilePathCheck extends AbstractConstraint
+{
+    /**
+     * Assert that path of generated files is correct.
+     *
+     * @param PathChecker $pathChecker
+     * @return void
+     */
+    public function processAssert(PathChecker $pathChecker)
+    {
+        $existsPaths = [
+            'generated/code',
+            'generated/metadata',
+            'generated/metadata/global.ser',
+            'generated/metadata/adminhtml.ser',
+            'generated/metadata/crontab.ser',
+            'generated/metadata/frontend.ser',
+            'generated/metadata/webapi_rest.ser',
+            'generated/metadata/webapi_soap.ser',
+        ];
+
+        $nonExistsPaths = [
+            'var/di',
+            'var/generation'
+        ];
+
+        foreach ($existsPaths as $path) {
+            \PHPUnit_Framework_Assert::assertTrue(
+                $pathChecker->pathExists($path),
+                'Path "' . $path . '" does not exist.'
+            );
+        }
+
+        foreach ($nonExistsPaths as $path) {
+            \PHPUnit_Framework_Assert::assertFalse(
+                $pathChecker->pathExists($path),
+                'Path "' . $path . '" exists.'
+            );
+        }
+    }
+
+    /**
+     * Returns a string representation of the object.
+     *
+     * @return string
+     */
+    public function toString()
+    {
+        return 'Path of generated files is correct.';
+    }
+}
diff --git a/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.php b/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.php
index 657ea4379b46e8d106e93cdddfc978c7c4d7159a..32594facd3a1bce7a6ae59f04840c8fd8e0e0421 100644
--- a/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.php
+++ b/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.php
@@ -17,6 +17,7 @@ use Magento\Install\Test\Constraint\AssertSuccessfulReadinessCheck;
 use Magento\Install\Test\Constraint\AssertAdminUriAutogenerated;
 use Magento\Install\Test\Constraint\AssertDevdocsLink;
 use Magento\Mtf\Util\Command\Cli\Setup;
+use Magento\Mtf\Util\Command\GeneratedCode;
 use Magento\Mtf\Client\BrowserInterface;
 
 /**
@@ -76,6 +77,13 @@ class InstallTest extends Injectable
      */
     protected $installPage;
 
+    /**
+     * Setup Magento for tests executions.
+     *
+     * @var Setup
+     */
+    private $magentoSetup;
+
     /**
      * Uninstall Magento before test.
      *
@@ -101,12 +109,17 @@ class InstallTest extends Injectable
      * @param Install $installPage
      * @param Setup $magentoSetup
      * @param DevdocsInstall $devdocsInstallPage
+     * @param GeneratedCode $generatedCode
      * @return void
      */
-    public function __inject(Install $installPage, Setup $magentoSetup, DevdocsInstall $devdocsInstallPage)
-    {
-        // Uninstall Magento.
-        $magentoSetup->uninstall();
+    public function __inject(
+        Install $installPage,
+        Setup $magentoSetup,
+        DevdocsInstall $devdocsInstallPage,
+        GeneratedCode $generatedCode
+    ) {
+        $generatedCode->delete();
+        $this->magentoSetup = $magentoSetup;
         $this->installPage = $installPage;
         $this->devdocsInstallPage = $devdocsInstallPage;
     }
@@ -122,8 +135,10 @@ class InstallTest extends Injectable
      * @param AssertAdminUriAutogenerated $assertAdminUri
      * @param AssertDevdocsLink $assertDevdocsLink
      * @param BrowserInterface $browser
+     * @param bool $diCompile
      * @param array $install [optional]
      * @return array
+     * @SuppressWarnings(PHPMD.ExcessiveParameterList)
      */
     public function test(
         User $user,
@@ -134,8 +149,10 @@ class InstallTest extends Injectable
         AssertAdminUriAutogenerated $assertAdminUri,
         AssertDevdocsLink $assertDevdocsLink,
         BrowserInterface $browser,
+        $diCompile = false,
         array $install = []
     ) {
+        $this->magentoSetup->uninstall();
         $dataConfig = array_merge($install, $configData);
         if (isset($dataConfig['httpsFront'])) {
             $dataConfig['https'] = str_replace('http', 'https', $dataConfig['baseUrl']);
@@ -178,6 +195,10 @@ class InstallTest extends Injectable
         // Step 6: Install.
         $this->installPage->getInstallBlock()->clickInstallNow();
 
+        if ($diCompile) {
+            $this->magentoSetup->diCompile();
+        }
+
         return ['installConfig' => $installConfig];
     }
 
diff --git a/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.xml b/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.xml
index cdfc018346b56dad265044131f6719fb3c48ef78..cb785723763be541be0136a40cb12d3c6eecb558 100644
--- a/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.xml
+++ b/dev/tests/functional/tests/app/Magento/Install/Test/TestCase/InstallTest.xml
@@ -48,10 +48,12 @@
             <constraint name="Magento\User\Test\Constraint\AssertUserSuccessLogin" />
             <constraint name="Magento\Install\Test\Constraint\AssertSecureUrlEnabled" />
         </variation>
-        <variation name="InstallTestVariation6" summary="Install with default values">
+        <variation name="InstallTestVariation6" summary="Install with default values and check DI compile" ticketId="MAGETWO-62817">
             <data name="user/dataset" xsi:type="string">default</data>
+            <data name="diCompile" xsi:type="boolean">true</data>
             <constraint name="Magento\Install\Test\Constraint\AssertSuccessInstall" />
             <constraint name="Magento\User\Test\Constraint\AssertUserSuccessLogin" />
+            <constraint name="Magento\Install\Test\Constraint\AssertGenerationFilePathCheck" />
         </variation>
     </testCase>
 </config>
diff --git a/dev/tests/functional/utils/deleteMagentoGeneratedCode.php b/dev/tests/functional/utils/deleteMagentoGeneratedCode.php
new file mode 100644
index 0000000000000000000000000000000000000000..b90269a9a21f68a8f2601eb409a4c7c5e912ff87
--- /dev/null
+++ b/dev/tests/functional/utils/deleteMagentoGeneratedCode.php
@@ -0,0 +1,7 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+exec('rm -rf ../../../../generated/*');
diff --git a/dev/tests/functional/utils/pathChecker.php b/dev/tests/functional/utils/pathChecker.php
new file mode 100644
index 0000000000000000000000000000000000000000..a57ac8d3e07b1d82f777e64dddba3518cf281a94
--- /dev/null
+++ b/dev/tests/functional/utils/pathChecker.php
@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+if (isset($_GET['path'])) {
+    $path = urldecode($_GET['path']);
+
+    if (file_exists('../../../../' . $path)) {
+        echo 'path exists: true';
+    } else {
+        echo 'path exists: false';
+    }
+} else {
+    throw new \InvalidArgumentException("GET parameter 'path' is not set.");
+}
diff --git a/dev/tests/integration/framework/Magento/TestFramework/Application.php b/dev/tests/integration/framework/Magento/TestFramework/Application.php
index 3d76b9774d50976e1f74cab4979f39e1cbd86064..e52976f505710a226e4cf008b8e21341a08fecce 100644
--- a/dev/tests/integration/framework/Magento/TestFramework/Application.php
+++ b/dev/tests/integration/framework/Magento/TestFramework/Application.php
@@ -630,12 +630,13 @@ class Application
     {
         $path = DirectoryList::PATH;
         $var = "{$this->installDir}/var";
+        $generated = "{$this->installDir}/generated";
         $customDirs = [
             DirectoryList::CONFIG => [$path => "{$this->installDir}/etc"],
             DirectoryList::VAR_DIR => [$path => $var],
             DirectoryList::MEDIA => [$path => "{$this->installDir}/pub/media"],
             DirectoryList::STATIC_VIEW => [$path => "{$this->installDir}/pub/static"],
-            DirectoryList::GENERATION => [$path => "{$var}/generation"],
+            DirectoryList::GENERATION => [$path => "{$generated}/code"],
             DirectoryList::CACHE => [$path => "{$var}/cache"],
             DirectoryList::LOG => [$path => "{$var}/log"],
             DirectoryList::SESSION => [$path => "{$var}/session"],
diff --git a/dev/tests/integration/testsuite/Magento/Backend/Block/TemplateTest.php b/dev/tests/integration/testsuite/Magento/Backend/Block/TemplateTest.php
index 2a3441afcd2aad6d1eeab87a1c4c3e7f7c266bd2..ea450cbe81c2ff5bc4ad8a28705dc7ba97a84a82 100644
--- a/dev/tests/integration/testsuite/Magento/Backend/Block/TemplateTest.php
+++ b/dev/tests/integration/testsuite/Magento/Backend/Block/TemplateTest.php
@@ -34,26 +34,4 @@ class TemplateTest extends \PHPUnit_Framework_TestCase
     {
         $this->assertGreaterThan(15, strlen($this->_block->getFormKey()));
     }
-
-    /**
-     * @magentoAppArea adminhtml
-     * @covers \Magento\Backend\Block\Template::isOutputEnabled
-     * @magentoConfigFixture current_store advanced/modules_disable_output/dummy 1
-     */
-    public function testIsOutputEnabledTrue()
-    {
-        $this->_block->setData('module_name', 'dummy');
-        $this->assertFalse($this->_block->isOutputEnabled('dummy'));
-    }
-
-    /**
-     * @magentoAppArea adminhtml
-     * @covers \Magento\Backend\Block\Template::isOutputEnabled
-     * @magentoConfigFixture current_store advanced/modules_disable_output/dummy 0
-     */
-    public function testIsOutputEnabledFalse()
-    {
-        $this->_block->setData('module_name', 'dummy');
-        $this->assertTrue($this->_block->isOutputEnabled('dummy'));
-    }
 }
diff --git a/dev/tests/integration/testsuite/Magento/Deploy/Console/Command/App/SensitiveConfigSetCommandTest.php b/dev/tests/integration/testsuite/Magento/Deploy/Console/Command/App/SensitiveConfigSetCommandTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..1b0fe2de866e817ab78e646087b9ebe248a60818
--- /dev/null
+++ b/dev/tests/integration/testsuite/Magento/Deploy/Console/Command/App/SensitiveConfigSetCommandTest.php
@@ -0,0 +1,291 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Deploy\Console\Command\App;
+
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\CollectorFactory;
+use Magento\Deploy\Console\Command\App\SensitiveConfigSet\InteractiveCollector;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\DeploymentConfig\Reader;
+use Magento\Framework\App\DeploymentConfig\Writer;
+use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\Config\File\ConfigFilePool;
+use Magento\Framework\Filesystem;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use Symfony\Component\Console\Helper\QuestionHelper;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
+ */
+class SensitiveConfigSetCommandTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @var Reader
+     */
+    private $reader;
+
+    /**
+     * @var ConfigFilePool
+     */
+    private $configFilePool;
+
+    /**
+     * @var array
+     */
+    private $config;
+
+    /**
+     * @var Filesystem
+     */
+    private $filesystem;
+
+    public function setUp()
+    {
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->reader = $this->objectManager->get(Reader::class);
+        $this->configFilePool = $this->objectManager->get(ConfigFilePool::class);
+        $this->config = $this->loadConfig();
+        $this->filesystem = $this->objectManager->get(Filesystem::class);
+        $this->filesystem->getDirectoryWrite(DirectoryList::CONFIG)->writeFile(
+            $this->getFileName(),
+            file_get_contents(__DIR__ . '/../../../_files/_config.local.php')
+        );
+    }
+
+    /**
+     * @param $scope
+     * @param $scopeCode
+     * @param callable $assertCallback
+     * @magentoDataFixture Magento/Store/_files/website.php
+     * @magentoDbIsolation enabled
+     * @dataProvider testExecuteDataProvider
+     */
+    public function testExecute($scope, $scopeCode, callable $assertCallback)
+    {
+        $outputMock = $this->getMock(OutputInterface::class);
+        $outputMock->expects($this->at(0))
+            ->method('writeln')
+            ->with('<info>Configuration value saved in app/etc/config.php</info>');
+
+        $inputMock = $this->getMock(InputInterface::class);
+        $inputMock->expects($this->exactly(2))
+            ->method('getArgument')
+            ->withConsecutive(
+                [SensitiveConfigSetCommand::INPUT_ARGUMENT_PATH],
+                [SensitiveConfigSetCommand::INPUT_ARGUMENT_VALUE]
+            )
+            ->willReturnOnConsecutiveCalls(
+                'some/config/path_two',
+                'sensitiveValue'
+            );
+        $inputMock->expects($this->exactly(3))
+            ->method('getOption')
+            ->withConsecutive(
+                [SensitiveConfigSetCommand::INPUT_OPTION_SCOPE],
+                [SensitiveConfigSetCommand::INPUT_OPTION_SCOPE_CODE],
+                [SensitiveConfigSetCommand::INPUT_OPTION_INTERACTIVE]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $scope,
+                $scopeCode,
+                null
+            );
+
+        /** @var SensitiveConfigSetCommand command */
+        $command = $this->objectManager->create(SensitiveConfigSetCommand::class);
+        $command->run($inputMock, $outputMock);
+
+        $config = $this->loadConfig();
+
+        $assertCallback($config);
+    }
+
+    public function testExecuteDataProvider()
+    {
+        return [
+            [
+                ScopeConfigInterface::SCOPE_TYPE_DEFAULT,
+                null,
+                function (array $config) {
+                    $this->assertTrue(isset($config['system']['default']['some']['config']['path_two']));
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['default']['some']['config']['path_two']
+                    );
+                }
+            ],
+            [
+                'website',
+                'test',
+                function (array $config) {
+                    $this->assertTrue(isset($config['system']['website']['test']['some']['config']['path_two']));
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['website']['test']['some']['config']['path_two']
+                    );
+                }
+            ]
+        ];
+    }
+
+    /**
+     * @param $scope
+     * @param $scopeCode
+     * @param callable $assertCallback
+     * @magentoDataFixture Magento/Store/_files/website.php
+     * @magentoDbIsolation enabled
+     * @dataProvider testExecuteInteractiveDataProvider
+     */
+    public function testExecuteInteractive($scope, $scopeCode, callable $assertCallback)
+    {
+        $inputMock = $this->getMock(InputInterface::class);
+        $outputMock = $this->getMock(OutputInterface::class);
+        $outputMock->expects($this->at(0))
+            ->method('writeln')
+            ->with('<info>Please set configuration values or skip them by pressing [Enter]:</info>');
+        $outputMock->expects($this->at(1))
+            ->method('writeln')
+            ->with('<info>Configuration values saved in app/etc/config.php</info>');
+        $inputMock->expects($this->exactly(3))
+            ->method('getOption')
+            ->withConsecutive(
+                [SensitiveConfigSetCommand::INPUT_OPTION_SCOPE],
+                [SensitiveConfigSetCommand::INPUT_OPTION_SCOPE_CODE],
+                [SensitiveConfigSetCommand::INPUT_OPTION_INTERACTIVE]
+            )
+            ->willReturnOnConsecutiveCalls(
+                $scope,
+                $scopeCode,
+                true
+            );
+
+        $questionHelperMock = $this->getMock(QuestionHelper::class);
+        $questionHelperMock->expects($this->exactly(3))
+            ->method('ask')
+            ->willReturn('sensitiveValue');
+
+        $interactiveCollectorMock = $this->objectManager->create(
+            InteractiveCollector::class,
+            [
+                'questionHelper' => $questionHelperMock
+            ]
+        );
+        $collectorFactoryMock = $this->getMockBuilder(CollectorFactory::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $collectorFactoryMock->expects($this->once())
+            ->method('create')
+            ->with(CollectorFactory::TYPE_INTERACTIVE)
+            ->willReturn($interactiveCollectorMock);
+
+        /** @var SensitiveConfigSetCommand command */
+        $command = $this->objectManager->create(
+            SensitiveConfigSetCommand::class,
+            [
+                'collectorFactory' => $collectorFactoryMock
+            ]
+        );
+        $command->run($inputMock, $outputMock);
+
+        $config = $this->loadConfig();
+
+        $assertCallback($config);
+    }
+
+    public function testExecuteInteractiveDataProvider()
+    {
+        return [
+            [
+                ScopeConfigInterface::SCOPE_TYPE_DEFAULT,
+                null,
+                function (array $config) {
+                    $this->assertTrue(isset($config['system']['default']['some']['config']['path_one']));
+                    $this->assertTrue(isset($config['system']['default']['some']['config']['path_two']));
+                    $this->assertTrue(isset($config['system']['default']['some']['config']['path_three']));
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['default']['some']['config']['path_one']
+                    );
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['default']['some']['config']['path_two']
+                    );
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['default']['some']['config']['path_three']
+                    );
+                }
+            ],
+            [
+                'website',
+                'test',
+                function (array $config) {
+                    $this->assertTrue(isset($config['system']['website']['test']['some']['config']['path_one']));
+                    $this->assertTrue(isset($config['system']['website']['test']['some']['config']['path_two']));
+                    $this->assertTrue(isset($config['system']['website']['test']['some']['config']['path_three']));
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['website']['test']['some']['config']['path_one']
+                    );
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['website']['test']['some']['config']['path_two']
+                    );
+                    $this->assertEquals(
+                        'sensitiveValue',
+                        $config['system']['website']['test']['some']['config']['path_three']
+                    );
+                }
+            ]
+        ];
+    }
+
+    public function tearDown()
+    {
+        $this->filesystem->getDirectoryWrite(DirectoryList::CONFIG)->delete(
+            $this->getFileName()
+        );
+        $this->filesystem->getDirectoryWrite(DirectoryList::CONFIG)->writeFile(
+            $this->configFilePool->getPath(ConfigFilePool::APP_CONFIG),
+            "<?php\n return array();\n"
+        );
+        /** @var Writer $writer */
+        $writer = $this->objectManager->get(Writer::class);
+        $writer->saveConfig([ConfigFilePool::APP_CONFIG => $this->config]);
+    }
+
+    /**
+     * @return string
+     */
+    private function getFileName()
+    {
+        /** @var ConfigFilePool $configFilePool */
+        $configFilePool = $this->objectManager->get(ConfigFilePool::class);
+        $filePool = $configFilePool->getInitialFilePools();
+
+        return $filePool[ConfigFilePool::LOCAL][ConfigFilePool::APP_CONFIG];
+    }
+
+    /**
+     * @return array
+     */
+    private function loadConfig()
+    {
+        return $this->reader->loadConfigFile(
+            ConfigFilePool::APP_CONFIG,
+            $this->configFilePool->getPath(ConfigFilePool::APP_CONFIG),
+            true
+        );
+    }
+}
diff --git a/dev/tests/integration/testsuite/Magento/Deploy/_files/_config.local.php b/dev/tests/integration/testsuite/Magento/Deploy/_files/_config.local.php
new file mode 100644
index 0000000000000000000000000000000000000000..ae4630b1a2b07e021ba1e7e1e409f4e1e81a99a6
--- /dev/null
+++ b/dev/tests/integration/testsuite/Magento/Deploy/_files/_config.local.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+return [
+    'scopes' => [
+        'websites' => []
+    ],
+    /**
+     * The configuration file doesn't contain sensitive data for security reasons.
+     * Sensitive data can be stored in the following environment variables:
+     * CONFIG__DEFAULT__SOME__CONFIG__PATH_ONE for some/config/path_one
+     * CONFIG__DEFAULT__SOME__CONFIG__PATH_TWO for some/config/path_two
+     * CONFIG__DEFAULT__SOME__CONFIG__PATH_THREE for some/config/path_three
+     */
+    'system' => [
+        'default' => [
+            'web' => [],
+            'general' => []
+        ]
+    ]
+];
diff --git a/dev/tests/static/framework/autoload.php b/dev/tests/static/framework/autoload.php
index a5750d9303c945e6f831c23b88d919b96d50cd44..fc3b62fc97287d9be6d6f72db106436c4ab7f84f 100644
--- a/dev/tests/static/framework/autoload.php
+++ b/dev/tests/static/framework/autoload.php
@@ -4,6 +4,8 @@
  * See COPYING.txt for license details.
  */
 
+use \Magento\Framework\App\Filesystem\DirectoryList;
+
 $baseDir = realpath(__DIR__ . '/../../../../');
 require $baseDir . '/app/autoload.php';
 $testsBaseDir = $baseDir . '/dev/tests/static';
@@ -16,4 +18,6 @@ $autoloadWrapper->addPsr4(
         $testsBaseDir . '/../integration/framework/Magento/TestFramework/',
     ]
 );
-$autoloadWrapper->addPsr4('Magento\\', $baseDir . '/var/generation/Magento/');
+
+$generatedCode = DirectoryList::getDefaultConfig()[DirectoryList::GENERATION][DirectoryList::PATH];
+$autoloadWrapper->addPsr4('Magento\\', $baseDir . '/' . $generatedCode . '/Magento/');
diff --git a/dev/tests/static/testsuite/Magento/Test/Php/_files/phpcpd/blacklist/common.txt b/dev/tests/static/testsuite/Magento/Test/Php/_files/phpcpd/blacklist/common.txt
index 3afe3af79b14ff3177a0dc1c5ea9fe42e93b6331..ebe8501337efff410bba83f4f291b3433247a893 100644
--- a/dev/tests/static/testsuite/Magento/Test/Php/_files/phpcpd/blacklist/common.txt
+++ b/dev/tests/static/testsuite/Magento/Test/Php/_files/phpcpd/blacklist/common.txt
@@ -109,7 +109,7 @@ Magento/SalesRule/Model/Resource/Report/Rule
 Magento/SalesRule/Model/Resource/Rule
 Magento/Theme/Block/Adminhtml/System/Design/Theme/Edit
 Magento/User/Block/User/Edit
-var/generation
+generated/code
 Magento/Newsletter/Block/Adminhtml/Template/Grid/Renderer
 Magento/Newsletter/Model/Template/Filter
 Magento/Newsletter/Model/Resource/Subscriber
diff --git a/dev/tests/unit/framework/autoload.php b/dev/tests/unit/framework/autoload.php
index 4b2adbe17673fb7f33a60f7183ffd190833d2904..b4987145872d44c854c993fad60cb6ce02422bf0 100644
--- a/dev/tests/unit/framework/autoload.php
+++ b/dev/tests/unit/framework/autoload.php
@@ -4,10 +4,12 @@
  * See COPYING.txt for license details.
  */
 
+use Magento\Framework\App\Filesystem\DirectoryList;
+
 $autoloader = new \Magento\Framework\TestFramework\Unit\Autoloader\ExtensionGeneratorAutoloader(
     new \Magento\Framework\Code\Generator\Io(
         new \Magento\Framework\Filesystem\Driver\File(),
-        TESTS_TEMP_DIR . '/var/generation'
+        TESTS_TEMP_DIR . '/'. DirectoryList::getDefaultConfig()[DirectoryList::GENERATION][DirectoryList::PATH]
     )
 );
 spl_autoload_register([$autoloader, 'load']);
diff --git a/generated/.htaccess b/generated/.htaccess
new file mode 100644
index 0000000000000000000000000000000000000000..896fbc5a341ea313ff3abd503808842757678c1d
--- /dev/null
+++ b/generated/.htaccess
@@ -0,0 +1,2 @@
+Order deny,allow
+Deny from all
\ No newline at end of file
diff --git a/lib/internal/Magento/Framework/App/Config/CommentParserInterface.php b/lib/internal/Magento/Framework/App/Config/CommentParserInterface.php
new file mode 100644
index 0000000000000000000000000000000000000000..efc917d31b0c70a1c0ee6a4b8a070f71fdbb322e
--- /dev/null
+++ b/lib/internal/Magento/Framework/App/Config/CommentParserInterface.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Framework\App\Config;
+
+use Magento\Framework\Exception\FileSystemException;
+
+/**
+ * Interface CommentParserInterface
+ */
+interface CommentParserInterface
+{
+    /**
+     * Retrieve config list from file comments.
+     *
+     * @param string $fileName
+     * @return array
+     * @throws FileSystemException
+     */
+    public function execute($fileName);
+}
diff --git a/lib/internal/Magento/Framework/App/DeploymentConfig/Writer/PhpFormatter.php b/lib/internal/Magento/Framework/App/DeploymentConfig/Writer/PhpFormatter.php
index ae8a9bd4dc64e66ecf8ab865f61541d9bdc94a6b..28fcbd3692c9e1dffb84b0a2ef98b1ffb0633d96 100644
--- a/lib/internal/Magento/Framework/App/DeploymentConfig/Writer/PhpFormatter.php
+++ b/lib/internal/Magento/Framework/App/DeploymentConfig/Writer/PhpFormatter.php
@@ -25,7 +25,10 @@ class PhpFormatter implements FormatterInterface
             foreach ($data as $key => $value) {
                 $comment = '  ';
                 if (!empty($comments[$key])) {
-                    $comment = "  /**\n * " . str_replace("\n", "\n * ", var_export($comments[$key], true)) . "\n */\n";
+                    $exportedComment = is_string($comments[$key])
+                        ? $comments[$key]
+                        : var_export($comments[$key], true);
+                    $comment = "  /**\n * " . str_replace("\n", "\n * ", $exportedComment) . "\n */\n";
                 }
                 $space = is_array($value) ? " \n" : ' ';
                 $elements[] = $comment . var_export($key, true) . ' =>' . $space . var_export($value, true);
diff --git a/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php b/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php
index ae1a6544ef2cbf05ef8bd4de84188472113ffa9c..57c903b49198cb5b4c99c8b6dcb2fcd8bcb3ed94 100644
--- a/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php
+++ b/lib/internal/Magento/Framework/App/Filesystem/DirectoryList.php
@@ -5,6 +5,8 @@
  */
 namespace Magento\Framework\App\Filesystem;
 
+use Magento\Framework\Code\Generator\Io;
+
 /**
  * A Magento application specific list of directories
  */
@@ -120,8 +122,8 @@ class DirectoryList extends \Magento\Framework\Filesystem\DirectoryList
             self::VAR_DIR => [parent::PATH => 'var'],
             self::CACHE => [parent::PATH => 'var/cache'],
             self::LOG => [parent::PATH => 'var/log'],
-            self::DI => [parent::PATH => 'var/di'],
-            self::GENERATION => [parent::PATH => 'var/generation'],
+            self::DI => [parent::PATH => 'generated/metadata'],
+            self::GENERATION => [parent::PATH => Io::DEFAULT_DIRECTORY],
             self::SESSION => [parent::PATH => 'var/session'],
             self::MEDIA => [parent::PATH => 'pub/media', parent::URL_PATH => 'pub/media'],
             self::STATIC_VIEW => [parent::PATH => 'pub/static', parent::URL_PATH => 'pub/static'],
diff --git a/lib/internal/Magento/Framework/App/Scope/ValidatorInterface.php b/lib/internal/Magento/Framework/App/Scope/ValidatorInterface.php
new file mode 100644
index 0000000000000000000000000000000000000000..8063d61d8f5b29395183b9742dc45d6084957955
--- /dev/null
+++ b/lib/internal/Magento/Framework/App/Scope/ValidatorInterface.php
@@ -0,0 +1,22 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Framework\App\Scope;
+
+use Magento\Framework\Exception\LocalizedException;
+
+interface ValidatorInterface
+{
+    /**
+     * Validate if exists given scope and scope code
+     * otherwise, throws an exception with appropriate message.
+     *
+     * @param string $scope
+     * @param string $scopeCode
+     * @return boolean
+     * @throws LocalizedException
+     */
+    public function isValid($scope, $scopeCode = null);
+}
diff --git a/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfig/Writer/PhpFormatterTest.php b/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfig/Writer/PhpFormatterTest.php
index 0f86b778a04d2d1c52535adf4f6eafb7d5af2795..9f6894c0a68350e86b9e96a8111de123ac11d574 100644
--- a/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfig/Writer/PhpFormatterTest.php
+++ b/lib/internal/Magento/Framework/App/Test/Unit/DeploymentConfig/Writer/PhpFormatterTest.php
@@ -3,7 +3,6 @@
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-
 namespace Magento\Framework\App\Test\Unit\DeploymentConfig\Writer;
 
 use \Magento\Framework\App\DeploymentConfig\Writer\PhpFormatter;
@@ -48,9 +47,9 @@ class PhpFormatterTest extends \PHPUnit_Framework_TestCase
         ];
         $comments1 = ['ns2' => 'comment for namespace 2'];
         $comments2 = [
-            'ns1' => 'comment for namespace 1',
-            'ns2' => "comment for namespace 2.\nNext comment for namespace 2",
-            'ns3' => 'comment for namespace 3',
+            'ns1' => 'comment for\' namespace 1',
+            'ns2' => "comment for namespace 2.\nNext comment for' namespace 2",
+            'ns3' => 'comment for" namespace 3',
             'ns4' => 'comment for namespace 4',
             'ns5' => 'comment for unexisted namespace 5',
         ];
@@ -71,7 +70,7 @@ return array (
     ),
   ),
   /**
-   * 'comment for namespace 2'
+   * comment for namespace 2
    */
   'ns2' => 
   array (
@@ -89,7 +88,7 @@ TEXT;
 <?php
 return array (
   /**
-   * 'comment for namespace 1'
+   * comment for' namespace 1
    */
   'ns1' => 
   array (
@@ -105,8 +104,8 @@ return array (
     ),
   ),
   /**
-   * 'comment for namespace 2.
-   * Next comment for namespace 2'
+   * comment for namespace 2.
+   * Next comment for' namespace 2
    */
   'ns2' => 
   array (
@@ -116,11 +115,11 @@ return array (
     ),
   ),
   /**
-   * 'comment for namespace 3'
+   * comment for" namespace 3
    */
   'ns3' => 'just text',
   /**
-   * 'comment for namespace 4'
+   * comment for namespace 4
    */
   'ns4' => 'just text'
 );
diff --git a/lib/internal/Magento/Framework/Code/GeneratedFiles.php b/lib/internal/Magento/Framework/Code/GeneratedFiles.php
index e33b311e74c629735d60485874c42769ad12a11e..9656ef6c4b9fe794b4ca6f915027905f106c1e3d 100644
--- a/lib/internal/Magento/Framework/Code/GeneratedFiles.php
+++ b/lib/internal/Magento/Framework/Code/GeneratedFiles.php
@@ -57,7 +57,7 @@ class GeneratedFiles
     }
 
     /**
-     * Clean var/generation, var/di and var/cache
+     * Clean generated/code, generated/metadata and var/cache
      *
      * @return void
      */
@@ -81,12 +81,12 @@ class GeneratedFiles
             $generationPath = $this->write->getRelativePath($this->directoryList->getPath(DirectoryList::GENERATION));
             $diPath = $this->write->getRelativePath($this->directoryList->getPath(DirectoryList::DI));
 
-            // Clean var/generation dir
+            // Clean generated/code dir
             if ($this->write->isDirectory($generationPath)) {
                 $this->write->delete($generationPath);
             }
 
-            // Clean var/di
+            // Clean generated/metadata
             if ($this->write->isDirectory($diPath)) {
                 $this->write->delete($diPath);
             }
@@ -101,7 +101,7 @@ class GeneratedFiles
     }
 
     /**
-     * Create flag for cleaning up var/generation, var/di and var/cache directories for subsequent
+     * Create flag for cleaning up generated/code, generated/metadata and var/cache directories for subsequent
      * regeneration of this content
      *
      * @return void
diff --git a/lib/internal/Magento/Framework/Code/Generator/Io.php b/lib/internal/Magento/Framework/Code/Generator/Io.php
index 05ddb46e948325eaba29f91a570ddb8412948e40..85449fe61749fa6dcdbb941a5b28c436cf663e90 100644
--- a/lib/internal/Magento/Framework/Code/Generator/Io.php
+++ b/lib/internal/Magento/Framework/Code/Generator/Io.php
@@ -14,7 +14,7 @@ class Io
      * Default code generation directory
      * Should correspond the value from \Magento\Framework\Filesystem
      */
-    const DEFAULT_DIRECTORY = 'var/generation';
+    const DEFAULT_DIRECTORY = 'generated/code';
 
     /**
      * Path to directory where new file must be created
diff --git a/lib/internal/Magento/Framework/Console/Cli.php b/lib/internal/Magento/Framework/Console/Cli.php
index 5a89d0f6b60571680068463df5b78f85951c809c..855e792ec21b9923ce9020fde7ac3eb41040d0bb 100644
--- a/lib/internal/Magento/Framework/Console/Cli.php
+++ b/lib/internal/Magento/Framework/Console/Cli.php
@@ -5,102 +5,106 @@
  */
 namespace Magento\Framework\Console;
 
+use Magento\Framework\App\DeploymentConfig;
 use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\App\State;
 use Magento\Framework\Composer\ComposerJsonFinder;
-use Symfony\Component\Console\Input\InputInterface;
-use Symfony\Component\Console\Output\OutputInterface;
-use Symfony\Component\Console\Output\ConsoleOutput;
-use Symfony\Component\Console\Input\ArgvInput;
-use Symfony\Component\Console\Application as SymfonyApplication;
+use Magento\Framework\Exception\FileSystemException;
+use Magento\Setup\Model\ObjectManagerProvider;
+use Symfony\Component\Console;
 use Magento\Framework\App\Bootstrap;
 use Magento\Framework\Filesystem\Driver\File;
 use Magento\Framework\Shell\ComplexParameter;
 use Magento\Setup\Console\CompilerPreparation;
-use \Magento\Framework\App\ProductMetadata;
+use Magento\Framework\App\ProductMetadata;
+use Magento\Framework\ObjectManagerInterface;
+use Zend\ServiceManager\ServiceManager;
 
 /**
- * Magento 2 CLI Application. This is the hood for all command line tools supported by Magento
+ * Magento 2 CLI Application.
+ * This is the hood for all command line tools supported by Magento.
  *
  * {@inheritdoc}
  * @SuppressWarnings(PHPMD.CouplingBetweenObjects)
  */
-class Cli extends SymfonyApplication
+class Cli extends Console\Application
 {
     /**
-     * Name of input option
+     * Name of input option.
      */
     const INPUT_KEY_BOOTSTRAP = 'bootstrap';
 
-    /**
-     * Cli exit codes
+    /**#@+
+     * Cli exit codes.
      */
     const RETURN_SUCCESS = 0;
     const RETURN_FAILURE = 1;
+    /**#@-*/
 
-    /** @var \Zend\ServiceManager\ServiceManager */
+    /**
+     * Service Manager.
+     *
+     * @var ServiceManager
+     */
     private $serviceManager;
 
     /**
-     * Initialization exception
+     * Initialization exception.
      *
      * @var \Exception
      */
     private $initException;
 
     /**
-     * @param string $name  application name
-     * @param string $version application version
-     * @SuppressWarnings(PHPMD.ExitExpression)
+     * Object Manager.
+     *
+     * @var ObjectManagerInterface
+     */
+    private $objectManager;
+
+    /**
+     * @param string $name the application name
+     * @param string $version the application version
      */
     public function __construct($name = 'UNKNOWN', $version = 'UNKNOWN')
     {
         $this->serviceManager = \Zend\Mvc\Application::init(require BP . '/setup/config/application.config.php')
             ->getServiceManager();
-        $generationDirectoryAccess = new GenerationDirectoryAccess($this->serviceManager);
-        if (!$generationDirectoryAccess->check()) {
-            $output = new ConsoleOutput();
-            $output->writeln(
-                '<error>Command line user does not have read and write permissions on var/generation directory.  Please'
-                . ' address this issue before using Magento command line.</error>'
-            );
-            exit(0);
-        }
-        /**
-         * Temporary workaround until the compiler is able to clear the generation directory
-         * @todo remove after MAGETWO-44493 resolved
-         */
-        if (class_exists(CompilerPreparation::class)) {
-            $compilerPreparation = new CompilerPreparation($this->serviceManager, new ArgvInput(), new File());
-            $compilerPreparation->handleCompilerEnvironment();
-        }
+
+        $this->assertCompilerPreparation();
+        $this->initObjectManager();
+        $this->assertGenerationPermissions();
 
         if ($version == 'UNKNOWN') {
-            $directoryList      = new DirectoryList(BP);
+            $directoryList = new DirectoryList(BP);
             $composerJsonFinder = new ComposerJsonFinder($directoryList);
-            $productMetadata    = new ProductMetadata($composerJsonFinder);
+            $productMetadata = new ProductMetadata($composerJsonFinder);
             $version = $productMetadata->getVersion();
         }
+
         parent::__construct($name, $version);
     }
 
     /**
-     * Process an error happened during initialization of commands, if any
+     * {@inheritdoc}
      *
-     * @param InputInterface $input
-     * @param OutputInterface $output
-     * @return int
-     * @throws \Exception
+     * @throws \Exception the exception in case of unexpected error
      */
-    public function doRun(InputInterface $input, OutputInterface $output)
+    public function doRun(Console\Input\InputInterface $input, Console\Output\OutputInterface $output)
     {
         $exitCode = parent::doRun($input, $output);
+
         if ($this->initException) {
             $output->writeln(
                 "<error>We're sorry, an error occurred. Try clearing the cache and code generation directories. "
-                . "By default, they are: var/cache, var/di, var/generation, and var/page_cache.</error>"
+                . "By default, they are: " . $this->getDefaultDirectoryPath(DirectoryList::CACHE) . ", "
+                . $this->getDefaultDirectoryPath(DirectoryList::DI) . ", "
+                . $this->getDefaultDirectoryPath(DirectoryList::GENERATION) . ", and var/page_cache.</error>"
             );
+
             throw $this->initException;
         }
+
         return $exitCode;
     }
 
@@ -113,46 +117,142 @@ class Cli extends SymfonyApplication
     }
 
     /**
-     * Gets application commands
+     * Gets application commands.
      *
-     * @return array
+     * @return array a list of available application commands
      */
     protected function getApplicationCommands()
     {
         $commands = [];
         try {
-            $bootstrapParam = new ComplexParameter(self::INPUT_KEY_BOOTSTRAP);
-            $params = $bootstrapParam->mergeFromArgv($_SERVER, $_SERVER);
-            $params[Bootstrap::PARAM_REQUIRE_MAINTENANCE] = null;
-            $bootstrap = Bootstrap::create(BP, $params);
-            $objectManager = $bootstrap->getObjectManager();
-            /** @var \Magento\Setup\Model\ObjectManagerProvider $omProvider */
-            $omProvider = $this->serviceManager->get(\Magento\Setup\Model\ObjectManagerProvider::class);
-            $omProvider->setObjectManager($objectManager);
-
             if (class_exists(\Magento\Setup\Console\CommandList::class)) {
                 $setupCommandList = new \Magento\Setup\Console\CommandList($this->serviceManager);
                 $commands = array_merge($commands, $setupCommandList->getCommands());
             }
 
-            if ($objectManager->get(\Magento\Framework\App\DeploymentConfig::class)->isAvailable()) {
-                /** @var \Magento\Framework\Console\CommandListInterface */
-                $commandList = $objectManager->create(\Magento\Framework\Console\CommandListInterface::class);
+            if ($this->objectManager->get(DeploymentConfig::class)->isAvailable()) {
+                /** @var CommandListInterface */
+                $commandList = $this->objectManager->create(CommandListInterface::class);
                 $commands = array_merge($commands, $commandList->getCommands());
             }
 
-            $commands = array_merge($commands, $this->getVendorCommands($objectManager));
+            $commands = array_merge(
+                $commands,
+                $this->getVendorCommands($this->objectManager)
+            );
         } catch (\Exception $e) {
             $this->initException = $e;
         }
+
         return $commands;
     }
 
     /**
-     * Gets vendor commands
+     * Object Manager initialization.
      *
-     * @param \Magento\Framework\ObjectManagerInterface $objectManager
-     * @return array
+     * @return void
+     * @SuppressWarnings(PHPMD.ExitExpression)
+     */
+    private function initObjectManager()
+    {
+        try {
+            $params = (new ComplexParameter(self::INPUT_KEY_BOOTSTRAP))->mergeFromArgv($_SERVER, $_SERVER);
+            $params[Bootstrap::PARAM_REQUIRE_MAINTENANCE] = null;
+
+            $this->objectManager = Bootstrap::create(BP, $params)->getObjectManager();
+
+            /** @var ObjectManagerProvider $omProvider */
+            $omProvider = $this->serviceManager->get(ObjectManagerProvider::class);
+            $omProvider->setObjectManager($this->objectManager);
+        } catch (FileSystemException $exception) {
+            $this->writeGenerationDirectoryReadError();
+
+            exit(static::RETURN_FAILURE);
+        }
+    }
+
+    /**
+     * Checks whether generation directory is read-only.
+     * Depends on the current mode:
+     *      production - application will proceed
+     *      default - application will be terminated
+     *      developer - application will be terminated
+     *
+     * @return void
+     * @SuppressWarnings(PHPMD.ExitExpression)
+     */
+    private function assertGenerationPermissions()
+    {
+        /** @var GenerationDirectoryAccess $generationDirectoryAccess */
+        $generationDirectoryAccess = $this->objectManager->create(
+            GenerationDirectoryAccess::class,
+            ['serviceManager' => $this->serviceManager]
+        );
+        /** @var State $state */
+        $state = $this->objectManager->get(State::class);
+
+        if (
+            $state->getMode() !== State::MODE_PRODUCTION
+            && !$generationDirectoryAccess->check()
+        ) {
+            $this->writeGenerationDirectoryReadError();
+
+            exit(static::RETURN_FAILURE);
+        }
+    }
+
+    /**
+     * Checks whether compiler is being prepared.
+     *
+     * @return void
+     * @SuppressWarnings(PHPMD.ExitExpression)
+     */
+    private function assertCompilerPreparation()
+    {
+        /**
+         * Temporary workaround until the compiler is able to clear the generation directory
+         * @todo remove after MAGETWO-44493 resolved
+         */
+        if (class_exists(CompilerPreparation::class)) {
+            $compilerPreparation = new CompilerPreparation(
+                $this->serviceManager,
+                new Console\Input\ArgvInput(),
+                new File()
+            );
+
+            try {
+                $compilerPreparation->handleCompilerEnvironment();
+            } catch (FileSystemException $e) {
+                $this->writeGenerationDirectoryReadError();
+
+                exit(static::RETURN_FAILURE);
+            }
+        }
+    }
+
+    /**
+     * Writes read error to console.
+     *
+     * @return void
+     */
+    private function writeGenerationDirectoryReadError()
+    {
+        $output = new \Symfony\Component\Console\Output\ConsoleOutput();
+        $output->writeln(
+            '<error>'
+            . 'Command line user does not have read and write permissions on '
+            . $this->getDefaultDirectoryPath(DirectoryList::GENERATION) . ' directory. '
+            . 'Please address this issue before using Magento command line.'
+            . '</error>'
+        );
+    }
+
+    /**
+     * Retrieves vendor commands.
+     *
+     * @param ObjectManagerInterface $objectManager the object manager
+     *
+     * @return array an array with external commands
      */
     protected function getVendorCommands($objectManager)
     {
@@ -165,6 +265,25 @@ class Cli extends SymfonyApplication
                 );
             }
         }
+
         return $commands;
     }
+
+    /**
+     * Get default directory path by code
+     *
+     * @param string $code
+     * @return string
+     */
+    private function getDefaultDirectoryPath($code)
+    {
+        $config = DirectoryList::getDefaultConfig();
+        $result = '';
+
+        if (isset($config[$code][DirectoryList::PATH])) {
+            $result = $config[$code][DirectoryList::PATH];
+        }
+
+        return $result;
+    }
 }
diff --git a/lib/internal/Magento/Framework/Console/GenerationDirectoryAccess.php b/lib/internal/Magento/Framework/Console/GenerationDirectoryAccess.php
index b0baf410d669f16eab5899e07b9e6103a274bd82..a2a1fc9be20e0a4702734cb7065011aab63ab564 100644
--- a/lib/internal/Magento/Framework/Console/GenerationDirectoryAccess.php
+++ b/lib/internal/Magento/Framework/Console/GenerationDirectoryAccess.php
@@ -14,7 +14,7 @@ use Zend\ServiceManager\ServiceManager;
 use Magento\Setup\Mvc\Bootstrap\InitParamListener;
 
 /**
- * Check var/generation read and write access
+ * Check generated/code read and write access
  */
 class GenerationDirectoryAccess
 {
@@ -33,7 +33,7 @@ class GenerationDirectoryAccess
     }
 
     /**
-     * Check var/generation read and write access
+     * Check generated/code read and write access
      *
      * @return bool
      */
diff --git a/lib/internal/Magento/Framework/Module/Manager.php b/lib/internal/Magento/Framework/Module/Manager.php
index 7df83917075651eb63f167aa759f9c931ba5edd7..cf22583184b1c89c79da06513a59c588a09faf25 100644
--- a/lib/internal/Magento/Framework/Module/Manager.php
+++ b/lib/internal/Magento/Framework/Module/Manager.php
@@ -3,90 +3,94 @@
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+namespace Magento\Framework\Module;
 
 /**
- * Module statuses manager
+ * Module status manager.
+ *
+ * Usage:
+ *
+ *  $manager->isEnabled('Vendor_Module')
  */
-namespace Magento\Framework\Module;
-
 class Manager
 {
     /**
-     * @var Output\ConfigInterface
+     * The checker of output modules.
+     *
+     * @var Output\ConfigInterface the config checker of output modules.
+     * @deprecated
      */
-    private $_outputConfig;
+    private $outputConfig;
 
     /**
-     * @var ModuleListInterface
+     * The list of all modules.
+     *
+     * @var ModuleListInterface the list of all modules.
      */
-    private $_moduleList;
+    private $moduleList;
 
     /**
-     * @var array
+     * The list of config paths to ignore.
+     *
+     * @var array the list of config paths to ignore.
+     * @deprecated
      */
-    private $_outputConfigPaths;
+    private $outputConfigPaths;
 
     /**
-     * @param Output\ConfigInterface $outputConfig
-     * @param ModuleListInterface $moduleList
-     * @param array $outputConfigPaths
+     * Constructor.
+     *
+     * @param Output\ConfigInterface $outputConfig the checker of output modules
+     * @param ModuleListInterface $moduleList the list of all modules
+     * @param array $outputConfigPaths the list of config paths to ignore
      */
     public function __construct(
         Output\ConfigInterface $outputConfig,
         ModuleListInterface $moduleList,
         array $outputConfigPaths = []
     ) {
-        $this->_outputConfig = $outputConfig;
-        $this->_moduleList = $moduleList;
-        $this->_outputConfigPaths = $outputConfigPaths;
+        $this->outputConfig = $outputConfig;
+        $this->moduleList = $moduleList;
+        $this->outputConfigPaths = $outputConfigPaths;
     }
 
     /**
-     * Whether a module is enabled in the configuration or not
+     * Checks whether a module is enabled in the configuration or not.
      *
-     * @param string $moduleName Fully-qualified module name
-     * @return boolean
+     * @param string $moduleName the fully-qualified module name
+     *
+     * @return boolean true if module is enabled, false otherwise
      */
     public function isEnabled($moduleName)
     {
-        return $this->_moduleList->has($moduleName);
+        return $this->moduleList->has($moduleName);
     }
 
     /**
-     * Whether a module output is permitted by the configuration or not
+     * Checks whether a module output is permitted by the configuration or not.
+     *
+     * @param string $moduleName the fully-qualified module name.
      *
-     * @param string $moduleName Fully-qualified module name
      * @return boolean
+     * @deprecated
+     * @see \Magento\Framework\Module\Manager::isEnabled()
      */
     public function isOutputEnabled($moduleName)
     {
-        if (!$this->isEnabled($moduleName)) {
-            return false;
-        }
-        if (!$this->_isCustomOutputConfigEnabled($moduleName)) {
-            return false;
-        }
-        if ($this->_outputConfig->isEnabled($moduleName)) {
-            return false;
-        }
-        return true;
+        return $this->isEnabled($moduleName);
     }
 
     /**
-     * Whether a configuration switch for a module output permits output or not
+     * Checks whether a configuration switch for a module output permits output.
      *
      * @param string $moduleName Fully-qualified module name
+     *
      * @return boolean
+     * @deprecated
+     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
     protected function _isCustomOutputConfigEnabled($moduleName)
     {
-        if (isset($this->_outputConfigPaths[$moduleName])) {
-            $configPath = $this->_outputConfigPaths[$moduleName];
-            if (defined($configPath)) {
-                $configPath = constant($configPath);
-            }
-            return $this->_outputConfig->isSetFlag($configPath);
-        }
         return true;
     }
 }
diff --git a/lib/internal/Magento/Framework/Module/Output/Config.php b/lib/internal/Magento/Framework/Module/Output/Config.php
index 27a99fdff4121c6514b51533d9e6626fb5f579f8..ca9d8d742d05cd410409f17161649471b17e08b1 100644
--- a/lib/internal/Magento/Framework/Module/Output/Config.php
+++ b/lib/internal/Magento/Framework/Module/Output/Config.php
@@ -7,6 +7,9 @@
  */
 namespace Magento\Framework\Module\Output;
 
+/**
+ * @deprecated
+ */
 class Config implements \Magento\Framework\Module\Output\ConfigInterface
 {
     /**
@@ -41,7 +44,7 @@ class Config implements \Magento\Framework\Module\Output\ConfigInterface
      */
     public function isEnabled($moduleName)
     {
-        return $this->isSetFlag(sprintf(self::XML_PATH_MODULE_OUTPUT_STATUS, $moduleName));
+        return false;
     }
 
     /**
@@ -49,6 +52,6 @@ class Config implements \Magento\Framework\Module\Output\ConfigInterface
      */
     public function isSetFlag($path)
     {
-        return $this->_scopeConfig->isSetFlag($path, $this->_storeType);
+        return false;
     }
 }
diff --git a/lib/internal/Magento/Framework/Module/Output/ConfigInterface.php b/lib/internal/Magento/Framework/Module/Output/ConfigInterface.php
index e417391ed547455f1d6ccc2a14edbc7a02dc1ae2..2025f5c6f42c5b3312f0907b4f0deaaa3c6cefb9 100644
--- a/lib/internal/Magento/Framework/Module/Output/ConfigInterface.php
+++ b/lib/internal/Magento/Framework/Module/Output/ConfigInterface.php
@@ -5,6 +5,9 @@
  */
 namespace Magento\Framework\Module\Output;
 
+/**
+ * @deprecated
+ */
 interface ConfigInterface
 {
     /**
diff --git a/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php b/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php
index f8fdc438b940cd5dbf604056c26f6727d03c990e..284367c84a721e3ce0202e9ab1f180c0eba96473 100644
--- a/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php
+++ b/lib/internal/Magento/Framework/Module/Test/Unit/ManagerTest.php
@@ -5,106 +5,60 @@
  */
 namespace Magento\Framework\Module\Test\Unit;
 
-use Magento\Framework\Module\Plugin\DbStatusValidator;
+use Magento\Framework\Module\Manager;
+use Magento\Framework\Module\ModuleListInterface;
+use Magento\Framework\Module\Output\ConfigInterface;
+use PHPUnit_Framework_MockObject_MockObject as Mock;
 
 class ManagerTest extends \PHPUnit_Framework_TestCase
 {
     /**
      * XPath in the configuration of a module output flag
+     * @deprecated
      */
     const XML_PATH_OUTPUT_ENABLED = 'custom/is_module_output_enabled';
 
     /**
-     * @var \Magento\Framework\Module\Manager
+     * @var Manager
      */
-    private $_model;
+    private $model;
 
     /**
-     * @var \PHPUnit_Framework_MockObject_MockObject
+     * @var ModuleListInterface|Mock
      */
-    private $_moduleList;
+    private $moduleList;
 
     /**
-     * @var \PHPUnit_Framework_MockObject_MockObject
+     * @var ConfigInterface|Mock
+     * @deprecated
      */
-    private $_outputConfig;
+    private $outputConfig;
 
     protected function setUp()
     {
-        $this->_moduleList = $this->getMockForAbstractClass(\Magento\Framework\Module\ModuleListInterface::class);
-        $this->_moduleList->expects($this->any())
-            ->method('getOne')
-            ->will($this->returnValueMap([
-                ['Module_One', ['name' => 'One_Module', 'setup_version' => '1']],
-                ['Module_Two', ['name' => 'Two_Module', 'setup_version' => '2']],
-                ['Module_Three', ['name' => 'Two_Three']],
-            ]));
-        $this->_outputConfig = $this->getMockForAbstractClass(\Magento\Framework\Module\Output\ConfigInterface::class);
-        $this->_model = new \Magento\Framework\Module\Manager(
-            $this->_outputConfig,
-            $this->_moduleList,
-            [
-                'Module_Two' => self::XML_PATH_OUTPUT_ENABLED,
-            ]
+        $this->moduleList = $this->getMockBuilder(ModuleListInterface::class)
+            ->getMockForAbstractClass();
+        $this->outputConfig = $this->getMockBuilder(ConfigInterface::class)
+            ->getMockForAbstractClass();
+
+        $this->model = new Manager(
+            $this->outputConfig,
+            $this->moduleList
         );
     }
 
     public function testIsEnabled()
     {
-        $this->_moduleList->expects($this->exactly(2))->method('has')->will($this->returnValueMap([
-            ['Module_Exists', true],
-            ['Module_NotExists', false],
-        ]));
-        $this->assertTrue($this->_model->isEnabled('Module_Exists'));
-        $this->assertFalse($this->_model->isEnabled('Module_NotExists'));
-    }
-
-    public function testIsOutputEnabledReturnsFalseForDisabledModule()
-    {
-        $this->_outputConfig->expects($this->any())->method('isSetFlag')->will($this->returnValue(true));
-        $this->assertFalse($this->_model->isOutputEnabled('Disabled_Module'));
-    }
-
-    /**
-     * @param bool $configValue
-     * @param bool $expectedResult
-     * @dataProvider isOutputEnabledGenericConfigPathDataProvider
-     */
-    public function testIsOutputEnabledGenericConfigPath($configValue, $expectedResult)
-    {
-        $this->_moduleList->expects($this->once())->method('has')->will($this->returnValue(true));
-        $this->_outputConfig->expects($this->once())
-            ->method('isEnabled')
-            ->with('Module_One')
-            ->will($this->returnValue($configValue));
-        $this->assertEquals($expectedResult, $this->_model->isOutputEnabled('Module_One'));
-    }
+        $this->moduleList->expects($this->exactly(2))
+            ->method('has')
+            ->willReturnMap(
+                [
+                    ['Module_Exists', true],
+                    ['Module_NotExists', false],
+                ]
+            );
 
-    public function isOutputEnabledGenericConfigPathDataProvider()
-    {
-        return ['output disabled' => [true, false], 'output enabled' => [false, true]];
-    }
-
-    /**
-     * @param bool $configValue
-     * @param bool $expectedResult
-     * @dataProvider isOutputEnabledCustomConfigPathDataProvider
-     */
-    public function testIsOutputEnabledCustomConfigPath($configValue, $expectedResult)
-    {
-        $this->_moduleList->expects($this->once())->method('has')->will($this->returnValue(true));
-        $this->_outputConfig->expects($this->at(0))
-            ->method('isSetFlag')
-            ->with(self::XML_PATH_OUTPUT_ENABLED)
-            ->will($this->returnValue($configValue));
-        $this->assertEquals($expectedResult, $this->_model->isOutputEnabled('Module_Two'));
-    }
-
-    public function isOutputEnabledCustomConfigPathDataProvider()
-    {
-        return [
-            'path literal, output disabled' => [false, false],
-            'path literal, output enabled'  => [true, true],
-        ];
+        $this->assertTrue($this->model->isEnabled('Module_Exists'));
+        $this->assertFalse($this->model->isEnabled('Module_NotExists'));
     }
 }
diff --git a/lib/internal/Magento/Framework/Setup/FilePermissions.php b/lib/internal/Magento/Framework/Setup/FilePermissions.php
index 1ca91b57e2e90ab38afcfecd53dee6f7268ccac6..4cc4a1852f0d725e324e4d18a5a53d7bf2f458a3 100644
--- a/lib/internal/Magento/Framework/Setup/FilePermissions.php
+++ b/lib/internal/Magento/Framework/Setup/FilePermissions.php
@@ -130,7 +130,7 @@ class FilePermissions
     }
 
     /**
-     * Check all sub-directories and files except for var/generation and var/di
+     * Check all sub-directories and files except for generated/code and generated/metadata
      *
      * @param string $directory
      * @return bool
diff --git a/lib/internal/Magento/Framework/View/Element/AbstractBlock.php b/lib/internal/Magento/Framework/View/Element/AbstractBlock.php
index bebeb7917f5010e768ac6b10ce4ca139de98900d..ee0b51b4b71d0dccae94956fcc44593340bbf992 100644
--- a/lib/internal/Magento/Framework/View/Element/AbstractBlock.php
+++ b/lib/internal/Magento/Framework/View/Element/AbstractBlock.php
@@ -647,12 +647,7 @@ abstract class AbstractBlock extends \Magento\Framework\DataObject implements Bl
     public function toHtml()
     {
         $this->_eventManager->dispatch('view_block_abstract_to_html_before', ['block' => $this]);
-        if ($this->_scopeConfig->getValue(
-            'advanced/modules_disable_output/' . $this->getModuleName(),
-            \Magento\Store\Model\ScopeInterface::SCOPE_STORE
-        )) {
-            return '';
-        }
+        $this->getModuleName();
 
         $html = $this->_loadCache();
         if ($html === false) {
diff --git a/lib/internal/Magento/Framework/View/Test/Unit/Element/AbstractBlockTest.php b/lib/internal/Magento/Framework/View/Test/Unit/Element/AbstractBlockTest.php
index b6846b52972e8b12287f727e56866c5452d04dcf..b6fde2c0f6a7fe465a82b47108dd9d9dd57b99a8 100644
--- a/lib/internal/Magento/Framework/View/Test/Unit/Element/AbstractBlockTest.php
+++ b/lib/internal/Magento/Framework/View/Test/Unit/Element/AbstractBlockTest.php
@@ -3,9 +3,6 @@
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-
-// @codingStandardsIgnoreFile
-
 namespace Magento\Framework\View\Test\Unit\Element;
 
 use Magento\Framework\View\Element\AbstractBlock;
@@ -207,13 +204,12 @@ class AbstractBlockTest extends \PHPUnit_Framework_TestCase
         $moduleName = 'Test';
         $this->block->setData('module_name', $moduleName);
 
-        $this->eventManagerMock->expects($this->any())
+        $this->eventManagerMock->expects($this->exactly(2))
             ->method('dispatch')
-            ->with('view_block_abstract_to_html_before', ['block' => $this->block]);
-        $this->scopeConfigMock->expects($this->once())
-            ->method('getValue')
-            ->with('advanced/modules_disable_output/' . $moduleName, \Magento\Store\Model\ScopeInterface::SCOPE_STORE)
-            ->willReturn(true);
+            ->willReturnMap([
+                ['view_block_abstract_to_html_before', ['block' => $this->block]],
+                ['view_block_abstract_to_html_after', ['block' => $this->block]],
+            ]);
 
         $this->assertSame('', $this->block->toHtml());
     }
@@ -246,10 +242,6 @@ class AbstractBlockTest extends \PHPUnit_Framework_TestCase
 
         $this->eventManagerMock->expects($expectsDispatchEvent)
             ->method('dispatch');
-        $this->scopeConfigMock->expects($this->once())
-            ->method('getValue')
-            ->with('advanced/modules_disable_output/' . $moduleName, \Magento\Store\Model\ScopeInterface::SCOPE_STORE)
-            ->willReturn(false);
         $this->cacheStateMock->expects($this->any())
             ->method('isEnabled')
             ->with(AbstractBlock::CACHE_GROUP)
diff --git a/setup/src/Magento/Setup/Console/Command/UpgradeCommand.php b/setup/src/Magento/Setup/Console/Command/UpgradeCommand.php
index 4734b99f19247e8763aa29ee0c19f6ae8fdce129..e652bb4d1183481b7c66230eacd7a0013bef3492 100644
--- a/setup/src/Magento/Setup/Console/Command/UpgradeCommand.php
+++ b/setup/src/Magento/Setup/Console/Command/UpgradeCommand.php
@@ -17,7 +17,7 @@ use Symfony\Component\Console\Output\OutputInterface;
 class UpgradeCommand extends AbstractSetupCommand
 {
     /**
-     * Option to skip deletion of var/generation directory
+     * Option to skip deletion of generated/code directory
      */
     const INPUT_KEY_KEEP_GENERATED = 'keep-generated';
 
diff --git a/setup/src/Magento/Setup/Console/CompilerPreparation.php b/setup/src/Magento/Setup/Console/CompilerPreparation.php
index df32f9b018a0f2bbb8103ae9556c8863d17ff286..e986749ee6efb04a26aa73ddbd59fb933cc003a2 100644
--- a/setup/src/Magento/Setup/Console/CompilerPreparation.php
+++ b/setup/src/Magento/Setup/Console/CompilerPreparation.php
@@ -1,49 +1,62 @@
 <?php
-/***
+/**
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-
 namespace Magento\Setup\Console;
 
-
 use Magento\Framework\App\Bootstrap;
 use Magento\Framework\App\Filesystem\DirectoryList;
+use Magento\Framework\Console\GenerationDirectoryAccess;
+use Magento\Framework\Exception\FileSystemException;
 use Magento\Framework\Filesystem\Driver\File;
+use Magento\Framework\Phrase;
 use Magento\Setup\Console\Command\DiCompileCommand;
 use Magento\Setup\Mvc\Bootstrap\InitParamListener;
 use Symfony\Component\Console\Input\ArgvInput;
+use Zend\ServiceManager\ServiceManager;
 
 class CompilerPreparation
 {
-    /** @var \Zend\ServiceManager\ServiceManager */
+    /**
+     * @var ServiceManager
+     */
     private $serviceManager;
 
-    /** @var ArgvInput */
+    /**
+     * @var ArgvInput
+     */
     private $input;
 
-    /** @var File */
+    /**
+     * @var File
+     */
     private $filesystemDriver;
 
     /**
-     * @param \Zend\ServiceManager\ServiceManager $serviceManager
+     * @var GenerationDirectoryAccess
+     */
+    private $generationDirectoryAccess;
+
+    /**
+     * @param ServiceManager $serviceManager
      * @param ArgvInput $input
      * @param File $filesystemDriver
      */
     public function __construct(
-        \Zend\ServiceManager\ServiceManager $serviceManager,
-        \Symfony\Component\Console\Input\ArgvInput $input,
-        \Magento\Framework\Filesystem\Driver\File $filesystemDriver
+        ServiceManager $serviceManager,
+        ArgvInput $input,
+        File $filesystemDriver
     ) {
-        $this->serviceManager   = $serviceManager;
-        $this->input            = $input;
+        $this->serviceManager = $serviceManager;
+        $this->input = $input;
         $this->filesystemDriver = $filesystemDriver;
     }
 
     /**
-     * Determine whether a CLI command is for compilation, and if so, clear the directory
+     * Determine whether a CLI command is for compilation, and if so, clear the directory.
      *
-     * @throws \Magento\Framework\Exception\FileSystemException
+     * @throws FileSystemException if generation directory is read-only
      * @return void
      */
     public function handleCompilerEnvironment()
@@ -63,10 +76,30 @@ class CompilerPreparation
         $compileDirList[] = $directoryList->getPath(DirectoryList::GENERATION);
         $compileDirList[] = $directoryList->getPath(DirectoryList::DI);
 
+        if (!$this->getGenerationDirectoryAccess()->check()) {
+            throw new FileSystemException(
+                new Phrase('Generation directory can not be written.')
+            );
+        }
+
         foreach ($compileDirList as $compileDir) {
             if ($this->filesystemDriver->isExists($compileDir)) {
                 $this->filesystemDriver->deleteDirectory($compileDir);
             }
         }
     }
+
+    /**
+     * Retrieves generation directory access checker.
+     *
+     * @return GenerationDirectoryAccess the generation directory access checker
+     */
+    private function getGenerationDirectoryAccess()
+    {
+        if (null === $this->generationDirectoryAccess) {
+            $this->generationDirectoryAccess = new GenerationDirectoryAccess($this->serviceManager);
+        }
+
+        return $this->generationDirectoryAccess;
+    }
 }
diff --git a/setup/src/Magento/Setup/Model/Installer.php b/setup/src/Magento/Setup/Model/Installer.php
index 0918ee66fbb684e5553a857cda7e5807c417d6b8..088b40aa4decbf24fb11ab65dca17c7ca726e445 100644
--- a/setup/src/Magento/Setup/Model/Installer.php
+++ b/setup/src/Magento/Setup/Model/Installer.php
@@ -1262,7 +1262,7 @@ class Installer
     }
 
     /**
-     * Clear var/generation and reset object manager
+     * Clear generated/code and reset object manager
      *
      * @return void
      */
diff --git a/setup/src/Magento/Setup/Module/Di/Code/Reader/Decorator/Interceptions.php b/setup/src/Magento/Setup/Module/Di/Code/Reader/Decorator/Interceptions.php
index 8a415dd65e43f4221abfd90d414dcc44fab617f3..5480a5953ce583fb50b27f6bbcd872acdcfdf0f7 100644
--- a/setup/src/Magento/Setup/Module/Di/Code/Reader/Decorator/Interceptions.php
+++ b/setup/src/Magento/Setup/Module/Di/Code/Reader/Decorator/Interceptions.php
@@ -6,6 +6,7 @@
 namespace Magento\Setup\Module\Di\Code\Reader\Decorator;
 
 use Magento\Setup\Module\Di\Compiler\Log\Log;
+use Magento\Framework\App\Filesystem\DirectoryList;
 
 /**
  * Class Interceptions
@@ -71,7 +72,8 @@ class Interceptions implements \Magento\Setup\Module\Di\Code\Reader\ClassesScann
         $nameList = [];
         foreach ($this->classesScanner->getList($path) as $className) {
             try {
-                if (!strpos($path, 'generation')) { // validate all classes except classes in var/generation dir
+                // validate all classes except classes in generated/code dir
+                if (!strpos($path, DirectoryList::getDefaultConfig()[DirectoryList::GENERATION][DirectoryList::PATH])) {
                     $this->validator->validate($className);
                 }
                 $nameList[] = $className;
diff --git a/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php b/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php
index 813cb5dccc98f7ac7d34b0fdc28ff7769070bbaf..93118211062eddac065cdfe4b75bcb8f310421f3 100644
--- a/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Console/CompilerPreparationTest.php
@@ -1,48 +1,69 @@
 <?php
-/***
+/**
  * Copyright © 2013-2017 Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
-
 namespace Magento\Setup\Test\Unit\Console;
 
-
+use Magento\Framework\Console\GenerationDirectoryAccess;
 use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
 use Magento\Setup\Console\Command\DiCompileCommand;
 use Magento\Setup\Mvc\Bootstrap\InitParamListener;
+use Magento\Framework\Filesystem\Driver\File;
 use Symfony\Component\Console\Input\ArgvInput;
+use Zend\ServiceManager\ServiceManager;
+use Magento\Setup\Console\CompilerPreparation;
+use PHPUnit_Framework_MockObject_MockObject as Mock;
 
 class CompilerPreparationTest extends \PHPUnit_Framework_TestCase
 {
-    /** @var \Magento\Setup\Console\CompilerPreparation */
+    /**
+     * @var CompilerPreparation|Mock
+     */
     private $model;
 
-    /** @var \Zend\ServiceManager\ServiceManager | \PHPUnit_Framework_MockObject_MockObject */
+    /**
+     * @var ServiceManager|Mock
+     */
     private $serviceManagerMock;
 
-    /** @var \Symfony\Component\Console\Input\ArgvInput | \PHPUnit_Framework_MockObject_MockObject */
+    /**
+     * @var ArgvInput|Mock
+     */
     private $inputMock;
 
-    /** @var \Magento\Framework\Filesystem\Driver\File | \PHPUnit_Framework_MockObject_MockObject */
+    /**
+     * @var File|Mock
+     */
     private $filesystemDriverMock;
 
+    /**
+     * @var GenerationDirectoryAccess|Mock
+     */
+    private $generationDirectoryAccessMock;
+
     public function setUp()
     {
-        $this->serviceManagerMock = $this->getMockBuilder(\Zend\ServiceManager\ServiceManager::class)
+        $this->serviceManagerMock = $this->getMockBuilder(ServiceManager::class)
+            ->disableOriginalConstructor()
+            ->getMock();
+        $this->inputMock = $this->getMockBuilder(ArgvInput::class)
             ->disableOriginalConstructor()
             ->getMock();
-        $this->inputMock = $this->getMockBuilder(\Symfony\Component\Console\Input\ArgvInput::class)
+        $this->filesystemDriverMock = $this->getMockBuilder(File::class)
             ->disableOriginalConstructor()
             ->getMock();
-        $this->filesystemDriverMock = $this->getMockBuilder(\Magento\Framework\Filesystem\Driver\File::class)
+        $this->generationDirectoryAccessMock = $this->getMockBuilder(GenerationDirectoryAccess::class)
             ->disableOriginalConstructor()
             ->getMock();
+
         $this->model = (new ObjectManager($this))->getObject(
-            \Magento\Setup\Console\CompilerPreparation::class,
+            CompilerPreparation::class,
             [
                 'serviceManager' => $this->serviceManagerMock,
                 'input' => $this->inputMock,
-                'filesystemDriver' => $this->filesystemDriverMock
+                'filesystemDriver' => $this->filesystemDriverMock,
+                'generationDirectoryAccess' => $this->generationDirectoryAccessMock,
             ]
         );
     }
@@ -56,21 +77,31 @@ class CompilerPreparationTest extends \PHPUnit_Framework_TestCase
      */
     public function testClearGenerationDirWhenNeeded($commandName, $isCompileCommand, $isHelpOption, $dirExists = false)
     {
-        $this->inputMock->expects($this->once())->method('getFirstArgument')->willReturn($commandName);
+        $this->inputMock->expects($this->once())
+            ->method('getFirstArgument')
+            ->willReturn($commandName);
         $this->inputMock->expects($this->atLeastOnce())
             ->method('hasParameterOption')
-            ->with(
-                $this->logicalOr('--help', '-h')
-            )->willReturn($isHelpOption);
+            ->with($this->logicalOr('--help', '-h'))
+            ->willReturn($isHelpOption);
+
         if ($isCompileCommand && !$isHelpOption) {
             $this->filesystemDriverMock->expects($this->exactly(2))
                 ->method('isExists')
                 ->willReturn($dirExists);
-            $this->filesystemDriverMock->expects($this->exactly(((int)$dirExists) * 2))->method('deleteDirectory');
+            $this->filesystemDriverMock->expects($this->exactly(((int)$dirExists) * 2))
+                ->method('deleteDirectory');
         } else {
-            $this->filesystemDriverMock->expects($this->never())->method('isExists');
-            $this->filesystemDriverMock->expects($this->never())->method('deleteDirectory');
+            $this->filesystemDriverMock->expects($this->never())
+                ->method('isExists');
+            $this->filesystemDriverMock->expects($this->never())
+                ->method('deleteDirectory');
         }
+
+        $this->generationDirectoryAccessMock->expects($this->any())
+            ->method('check')
+            ->willReturn(true);
+
         $this->model->handleCompilerEnvironment();
     }
 
@@ -108,10 +139,6 @@ class CompilerPreparationTest extends \PHPUnit_Framework_TestCase
         $customGenerationDirectory = '/custom/generated/code/directory';
         $defaultDiDirectory = '/custom/di/directory';
         $mageInitParams = ['MAGE_DIRS' => ['generation' => ['path' => $customGenerationDirectory]]];
-
-        $this->inputMock->expects($this->once())
-            ->method('getFirstArgument')
-            ->willReturn(DiCompileCommand::NAME);
         $dirValueMap = [
             [
                 $customGenerationDirectory,
@@ -122,16 +149,24 @@ class CompilerPreparationTest extends \PHPUnit_Framework_TestCase
                 true
             ]
         ];
-        // Filesystem mock
-        $this->filesystemDriverMock->expects($this->exactly(2))->method('isExists')->willReturn(true);
+
+        $this->inputMock->expects($this->once())
+            ->method('getFirstArgument')
+            ->willReturn(DiCompileCommand::NAME);
+        $this->filesystemDriverMock->expects($this->exactly(2))
+            ->method('isExists')
+            ->willReturn(true);
         $this->filesystemDriverMock->expects($this->exactly(2))
             ->method('deleteDirectory')
-            ->will($this->returnValueMap($dirValueMap));
-
+            ->willReturnMap($dirValueMap);
         $this->serviceManagerMock->expects($this->once())
             ->method('get')
             ->with(InitParamListener::BOOTSTRAP_PARAM)
             ->willReturn($mageInitParams);
+        $this->generationDirectoryAccessMock->expects($this->once())
+            ->method('check')
+            ->willReturn(true);
+
         $this->model->handleCompilerEnvironment();
     }
 
@@ -139,10 +174,6 @@ class CompilerPreparationTest extends \PHPUnit_Framework_TestCase
     {
         $customGenerationDirectory = '/custom/generated/code/directory';
         $customDiDirectory = '/custom/di/directory';
-        
-        $this->inputMock->expects($this->once())
-            ->method('getFirstArgument')
-            ->willReturn(DiCompileCommand::NAME);
         $dirResultMap = [
             [
                 $this->logicalNot($this->equalTo($customGenerationDirectory)),
@@ -154,10 +185,18 @@ class CompilerPreparationTest extends \PHPUnit_Framework_TestCase
             ]
         ];
 
-        $this->filesystemDriverMock->expects($this->exactly(2))->method('isExists')->willReturn(true);
+        $this->inputMock->expects($this->once())
+            ->method('getFirstArgument')
+            ->willReturn(DiCompileCommand::NAME);
+        $this->filesystemDriverMock->expects($this->exactly(2))
+            ->method('isExists')
+            ->willReturn(true);
         $this->filesystemDriverMock->expects($this->exactly(2))
             ->method('deleteDirectory')
-            ->will($this->returnValueMap($dirResultMap));
+            ->willReturnMap($dirResultMap);
+        $this->generationDirectoryAccessMock->expects($this->once())
+            ->method('check')
+            ->willReturn(true);
 
         $this->model->handleCompilerEnvironment();
     }
diff --git a/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/DirectoryTest.php b/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/DirectoryTest.php
index b34322ec9992a650f87ad973f94bb07a27c858fb..0ccc4d9f9b35fe82e3775d2934c27dfecb10c382 100644
--- a/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/DirectoryTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/DirectoryTest.php
@@ -66,7 +66,7 @@ class DirectoryTest extends \PHPUnit_Framework_TestCase
             $this->classReaderMock,
             $this->classesScanner,
             $this->validatorMock,
-            '/var/generation'
+            '/generated/code'
         );
     }
 
@@ -111,7 +111,7 @@ class DirectoryTest extends \PHPUnit_Framework_TestCase
 
     public function testGetListNoValidation()
     {
-        $path = '/var/generation';
+        $path = '/generated/code';
 
         $classes = ['NameSpace1\ClassName1', 'NameSpace1\ClassName2'];
 
diff --git a/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/InterceptionsTest.php b/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/InterceptionsTest.php
index 0591b11b9628c0117ede3b88201722ed6d86da2a..733ba0b85866e38d24f17e6b2d031e75bab17ce3 100644
--- a/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/InterceptionsTest.php
+++ b/setup/src/Magento/Setup/Test/Unit/Module/Di/Code/Reader/InstancesNamesList/InterceptionsTest.php
@@ -97,7 +97,7 @@ class InterceptionsTest extends \PHPUnit_Framework_TestCase
 
     public function testGetListNoValidation()
     {
-        $path = '/var/generation';
+        $path = '/generated/code';
 
         $classes = ['NameSpace1\ClassName1', 'NameSpace1\ClassName2'];