Added Dockerfile

backend/.env.example

@@ -1,5 +1,4 @@
 NODE_ENV=production
-PORT=3031
 URI=mongodb://localhost?retryWrites=true&w=majority
 FRONTEND=https://bingo.anatolykopyl.ru
 DB_NAME=vk_bingo

backend/Dockerfile

@@ -0,0 +1,11 @@
+FROM node:16-alpine
+WORKDIR /app
+
+# Copy and download dependencies
+COPY package.json package-lock.json ./
+RUN npm install
+
+# Copy the source files into the image
+COPY . .
+EXPOSE 3000
+CMD npm start

backend/index.js

@@ -219,5 +219,10 @@ const client = new MongoClient(process.env.URI, { useUnifiedTopology: true });
     }
   });
 
-  app.listen(process.env.PORT, () => console.log(`Server started on ${process.env.PORT}`));
+  app.listen(
+    3000,
+    '0.0.0.0',
+    511,
+    () => console.log(`Server started on port ${3000}`),
+  );
 })();

backend/package.json

@@ -4,7 +4,8 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "dev": "nodemon index.js"
+    "dev": "nodemon index.js",
+    "start": "node index.js"
   },
   "author": "Anatoly Kopyl",
   "license": "ISC",