docker-compose.yml

version: "3.5"
services:
  postgresql:
    # Set a name for the container so that it can be accessed by name on the same network
    container_name: postgresql

    # Official Postgres image from DockerHub (we use the last version)
    image: postgres:latest

    # ------------------------------------------------------------------------------
    # Set environment variables for the container
    # However, for security reasons, we will use .env instead
    # environment:
    #   POSTGRES_USER: postgres
    #   POSTGRES_PASSWORD: postgres
    # The PostgreSQL default database (automatically created at first launch)
    #   POSTGRES_DB: petapp-db
    #   PGDATA: /data/postgres # (the data directory)
    # ------------------------------------------------------------------------------

    env_file:
      - .env

    # # By default, a Postgres database is running on the 5432 port.
    # If we want to access the database from our computer (outside the container),
    # we must share the port with our computer's port.
    # The syntax is [port we want on our machine]:[port we want to retrieve in the container]
    # Note: You are free to change your computer's port,
    # but take into consideration that it will change the way
    # you are connecting to your database.
    ports:
      - 5432:5432
    networks:
      - postgres-networks
    restart: unless-stopped

    # we share the folder `postgresql-data` in our root repository, with the default PostgreSQL data path.
    # It means that every time the repository is modifying the data inside
    # of `/var/lib/postgresql/data/`, automatically the change will appear in `postgresql-data`.
    # You don't need to create the `postgresql-data` folder. Docker Compose will do it for you.
    # volumes:
    # - ./postgresql-data:/var/lib/postgresql/data/

  # redis is a key-value store, so we can use it to store our session tokens.
  redis:
    container_name: redis-server
    image: redis:latest
    ports:
      - 6379:6379
    networks:
      - postgres-networks
    restart: unless-stopped

  # postgresql-admin is a utility tool to manage the PostgreSQL database.
  postgresadmin:
    container_name: postgresadmin
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: pgadmin4@petapp.com
      PGADMIN_DEFAULT_PASSWORD: pgadmin4
      PGADMIN_CONFIG_SERVER_MODE: "False"
    ports:
      - "5050:80"
    networks:
      - postgres-networks
    restart: unless-stopped

networks:
  postgres-networks:
    driver: bridge