feat: added to Docker - Postgres db and Adminer db manager, added .env-example...

feat: added to Docker - Postgres db and Adminer db manager, added .env-example as hint for local .env file

.env-example

+# SERVER
+SERVER_PORT=4000
+
+# DATABASE
+DB_USER=admin
+DB_PASSWORD=password
+DB_NAME=film-db
+
+# ADMINER
+ADMINER_PORT=8080

.gitignore

@@ -6,3 +6,6 @@ node_modules/
 
 # .env files
 .env
+
+# Database
+database-storage

backend/.dockerignore

+# Node modules folder
+node_modules
+
+# Database storage folder
+database-storage
+
+# Docker files
+Dockerfile
+.dockerignore

backend/Dockerfile

 FROM node:16-alpine
 
-WORKDIR /usr/src/app
-
-COPY package*.json ./
+WORKDIR /usr/src
 
+COPY ["package.json", "package-lock.json*", "./"]
 RUN npm install
+ENV PATH=/usr/src/node_modules/.bin:$PATH
+
+WORKDIR /usr/src/app
 
 COPY . .
 

docker-compose.yml

 version: '3.8'
 
 services:
-    server:
-        container_name: film_database-server
-        image: film_database-server:1.0.0
-        build:
-            context: ./backend
-            dockerfile: Dockerfile
-        command: npm run start:dev
-        ports:
-            - 127.0.0.1:3000:3000
-        networks:
-            - app-network
-        volumes:
-            - ./backend:/usr/src/app
-            - /usr/src/app/node_modules
-        restart: always
+  server:
+    container_name: server
+    image: server:1.0.0
+    build:
+      context: ./backend
+      dockerfile: Dockerfile
+    command: npm run start:debug
+    env_file: .env
+    ports:
+      - 127.0.0.1:${SERVER_PORT}:3000
+    volumes:
+      # changes in host's ./backend directory will be propagated to the container
+      - ./backend:/usr/src/app
+      # this prevents our host files from overriding container's node_modules
+      - exclude:/usr/src/app/node_modules/
+    networks:
+      - app-network
+    restart: always
+
+  postgres:
+    container_name: postgres
+    image: postgres:14.3-alpine
+    env_file: .env
+    volumes:
+      - ./backend/database-storage:/var/lib/postgresql/data
+    networks:
+      - app-network
+    environment:
+      POSTGRES_USER: ${DB_USER}
+      POSTGRES_PASSWORD: ${DB_PASSWORD}
+      POSTGRES_DB: ${DB_NAME}
+    restart: always
+
+  adminer:
+    container_name: adminer
+    image: adminer:4.8.1
+    env_file: .env
+    ports:
+      - 127.0.0.1:${ADMINER_PORT}:${ADMINER_PORT}
+    environment:
+      ADMINER_DESIGN: nette
+    restart: always
+    depends_on:
+      - postgres-db
+
+volumes:
+  exclude:
+  database-storage:
 
 networks:
-    app-network:
-      driver: bridge
+  app-network: