docker-compose.yml

services:
  nginx:
    # Image is defined in Dockerfile
    hostname: nginx
    container_name: nginx
    restart: always
    # Dockerfile folder path
    build:
      context: ./nginx
    ports:
      - ${NGINX_PORT_OUT_HTTP}:${NGINX_PORT_IN_HTTP}
      - ${NGINX_PORT_OUT_S}:${NGINX_PORT_OUT_S}
    volumes:
      - ./nginx/conf.d:/etc/nginx/conf.d:z
      - ./nginx/dhparam:/etc/nginx/dhparam:z
      - ./nginx/log:/var/log/nginx:z
  db:
    # Image is defined here
    # We can create container without dockerfile too
    image: postgres:14.4
    hostname: db
    container_name: db
    ports:
      - ${PG_PORT_OUT}:${PG_PORT_IN}
    # We can use only 'env_file: .env' too
    environment:
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
      POSTGRES_DB: ${POSTGRES_DB}
      PGDATA: ${PGDATA}
    volumes:
      - ./data/db_data:${PGDATA}:rw
  pgadmin:
    image: dpage/pgadmin4:latest
    # Fix volume permissions
    user: root
    hostname: pgadmin
    container_name: pgadmin
    restart: always
    ports:
      - ${PGADMIN_PORT_OUT}:${PGADMIN_PORT_IN}
    # We can use 'env_file: .env' too
    environment:
      PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL}
      PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD}
      PGADMIN_LISTEN_PORT: ${PGADMIN_PORT_IN}
    volumes:
      # ./data/pgadmin_data directory's user and group id's has to be 5050
      # Also we can fix this issue by setting user as root
      # ls -l ./data/pgadmin_data output will be like
      # drwxrwxr-x 1 5050 5050 12693 Sep 12 14:56 pgadmin
      # sudo chown -R 5050:5050 ./data/pgadmin_data
      # You can check out the details in documentation website -> https://www.pgadmin.org/docs/pgadmin4/development/container_deployment.html
      - ./data/pgadmin_data:/var/lib/pgadmin:z
  nodejs:
    # Dockerfile folder path
    # Image is defined in Dockerfile
    build:
      context: ./nodejs
    hostname: nodejs
    container_name: nodejs
    # Don't open port to outside
    # Expose ports to internal container network
    expose:
      - 80
      - 443
    volumes:
      # We can add html content to public folder while container is running with this way
      - ./nodejs/public:/usr/src/public:z