.env.example

-REACT_APP_API_URL=
\ No newline at end of file
+REACT_APP_API_URL=http://rest-service:5001
\ No newline at end of file

Dockerfile

-# Use an official Node runtime as the base image
-FROM node:21.1.0
+FROM node:21-alpine
 
-# Set the working directory in the container to /app
 WORKDIR /app
 
-# Copy package.json and package-lock.json to the working directory
 COPY package*.json ./
+COPY yarn.lock ./
 
-# Install any needed packages specified in package.json
 RUN yarn install
 
-# Bundle app source
 COPY . .
 
-# Run the app when the container launches
 CMD ["yarn", "start"]
\ No newline at end of file

package.json

@@ -34,7 +34,7 @@
     "web-vitals": "^2.1.4"
   },
   "scripts": {
-    "start": "set PORT=3001 && react-scripts start",
+    "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test",
     "eject": "react-scripts eject"
@@ -58,6 +58,7 @@
     ]
   },
   "devDependencies": {
+    "cross-env": "^7.0.3",
     "tailwindcss": "^3.3.3"
   }
 }

yarn.lock

@@ -4511,7 +4511,14 @@ cosmiconfig@^7.0.0:
     path-type "^4.0.0"
     yaml "^1.10.0"
 
-cross-spawn@^7.0.2, cross-spawn@^7.0.3:
+cross-env@^7.0.3:
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/cross-env/-/cross-env-7.0.3.tgz#865264b29677dc015ba8418918965dd232fc54cf"
+  integrity sha512-+/HKd6EgcQCJGh2PSjZuUitQBQynKor4wrFbRg4DtAgS1aWO+gU52xpH7M9ScGgXSYmAVS9bIJ8EzuaGw0oNAw==
+  dependencies:
+    cross-spawn "^7.0.1"
+
+cross-spawn@^7.0.1, cross-spawn@^7.0.2, cross-spawn@^7.0.3:
   version "7.0.3"
   resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-7.0.3.tgz#f73a85b9d5d41d045551c177e2882d4ac85728a6"
   integrity sha512-iRDPJKUPVEND7dHPO8rkbOnPpyDygcDFtWjpeWNCgy8WP2rXcxXL8TskReQl6OrB2G7+UJrags1q15Fudc7G6w==