docker-compose.yml

# Version of the Compose file format
# Version 3 is the most current and recommended one
version: "3"

# Top building block that defines
# All containers used for this service
services:

  # Container 1
  # https://hub.docker.com/_/mysql
  db:
    # Image name (optimally version)
    # https://docs.docker.com/compose/compose-file/#image
    image: mysql:5.7
    # Define restart policy
    # https://docs.docker.com/compose/compose-file/#restart
    restart: on-failure
    # Volumes definition
    # Named volume, allows persisted data but without caring where locally it is stored
    # https://nickjanetakis.com/blog/docker-tip-28-named-volumes-vs-path-based-volumes
    volumes:
      - db_data:/var/lib/mysql
    # Add environment variables
    # https://docs.docker.com/compose/compose-file/#environment
    environment:
      MYSQL_ROOT_PASSWORD: password
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress
    # List of networks to join
    networks:
      - wp

  # Container 2
  # https://hub.docker.com/_/wordpress
  wordpress:
    # List of dependencies
    depends_on:
      - db
    # Image wordpress:latest but use Dockerfile to fix permission issue
    build:
      context: .
      dockerfile: Dockerfile
    image: wdd/wordpress
    # Define restart policy
    # https://docs.docker.com/compose/compose-file/#restart
    restart: on-failure
    # Volumes definition
    # https://docs.docker.com/compose/compose-file/#volumes
    volumes:
      # PHP configuration
      - ./wdd/uploads.ini:/usr/local/etc/php/conf.d/uploads.ini
      # Maps your local folder, to path in a container
      # Useful for file edits
      - ./:/var/www/html
    # Add environment variables
    # https://docs.docker.com/compose/compose-file/#environment
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
      # www (1000) is created in Dockerfile
      APACHE_RUN_USER: www
      APACHE_RUN_GROUP: www
    # Ports mapping
    ports:
      - 80:80
      - 443:443
    # List of networks to join
    networks:
      - wp

  # Container 3
  # https://hub.docker.com/r/phpmyadmin/phpmyadmin
  # This one is optional
  phpmyadmin:
    # List of dependencies
    depends_on:
      - db
    # Image name (optimally version)
    # https://docs.docker.com/compose/compose-file/#image
    image: phpmyadmin/phpmyadmin
    # Define restart policy
    # https://docs.docker.com/compose/compose-file/#restart
    restart: on-failure
    # Ports mapping
    ports:
      - 8080:80
    # Add environment variables
    # https://docs.docker.com/compose/compose-file/#environment
    environment:
      PMA_HOST: db
      MYSQL_ROOT_PASSWORD: password
    volumes:
      # Apply PHP configuration for PHPMyAdmin
      - ./wdd/uploads.ini:/usr/local/etc/php/conf.d/php-phpmyadmin.ini
    # List of networks to join
    networks:
      - wp

# Top building block that defines
# All networks used for this service
networks:
  wp:

# Top building block that defines
# All volumes used for this service
volumes:
  db_data: