docker-compose.yaml

version: '2.3'

services:
  mariadb:
    image: mariadb
    environment:
      MYSQL_ROOT_PASSWORD: secret
    volumes:
      - ./wp/mariadb/conf:/etc/mysql/conf.d:ro
      - ./wp/mariadb/data:/var/lib/mysql

  wordpress:
    image: wordpress:php7.0

    environment:
      WORDPRESS_DB_HOST: db
      WORDPRESS_DB_PASSWORD: secret
    ports:
      - 80:80
    restart: always
    volumes:
      - ./wp/app/wp-content:/var/www/html/wp-content
    # Defines startup order only.
    depends_on:
      mariadb:
        condition: service_healthy
      smtp:
        condition: service_healthy

  smtp:
    image: mwader/postfix-relay
    restart: always
    environment:
      POSTFIX_myhostname: example.com