docker-compose.yml

version: '3.8'
services:
  posts:
    build: .
    env_file:
      - .env
    depends_on:
      # Our app does not work without our database
      # so this ensures our database is loaded first
      - postgres
    ports:
      - "3001:3001"
    volumes:
      - ./:/usr/src/app/
      # node_modules workaround for volumes
    command: npm run start:dev
    networks:
      - mynetwork

  # This is the configuration for our PostgreSQL database container
  # Note the `postgres` name is important, in out Node app when we refer
  # to  `host: "postgres"` that value is mapped on the network to the 
  # address of this container.
  postgres:
    image: postgres:14.1-alpine
    restart: always
    environment:
      POSTGRES_DB: ${POSTGRES_DB}
      POSTGRES_USER: ${POSTGRES_USER}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
    ports: 
      # Standard port for PostgreSQL databases
      - "5432:5432"
    volumes:
      # When the PostgresSQL container is started it will run any scripts
      # provided in the `docker-entrypoint-initdb.d` directory, this connects
      # our seed file to that directory so that it gets run
      - ./db/database-seed.sql:/docker-entrypoint-initdb.d/database-seed.sql
      - ./db/data:/var/lib/postgresql/data
    networks:
      - mynetwork

  # PostgreSQL pgAdmin panel accessible at http://localhost:16543/
  pgadmin-compose:
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL}
      PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD}
    ports:
      - "16543:80"
    depends_on:
      - postgres
    networks:
      - mynetwork

networks:
  mynetwork:
    name: mynetwork