docker-compose.yml

version: '3.3'
services:
  database:
    image: mysql:5.7
    container_name: mysql
    environment:
      - MYSQL_DATABASE=wordpress
      - MYSQL_ROOT_PASSWORD=wordpress
    ports:
      - "3306:3306"
  wordpress-master:
    image: wordpress-development
    build: .
    container_name: wordpress-development-master
    environment:
      - WORDPRESS_DB_HOST=database:3306
      - WORDPRESS_DATABASE_NAME=wordpress
      - WORDPRESS_DATABASE_USER=root
      - WORDPRESS_DB_PASSWORD=wordpress
      - WORDPRESS_CONFIG_EXTRA=define('WP_CONTENT_URL', 'http://localhost:81/wp-content');
      - CONTAINER_MODE=master
    ports:
      - "81:80"
    command: supervisord --nodaemon -c /etc/supervisor/supervisord.conf
  wordpress-slave:
    image: wordpress-development
    build: .
    container_name: wordpress-development-slave
    environment:
      - WORDPRESS_DB_HOST=mysql:3306
      - WORDPRESS_DATABASE_NAME=wordpress
      - WORDPRESS_DATABASE_USER=root
      - WORDPRESS_DB_PASSWORD=wordpress
      - WORDPRESS_CONFIG_EXTRA=define('WP_CONTENT_URL', 'http://localhost:82/wp-content');
      - CONTAINER_MODE=slave
      - RSYNC_WORDPRESS_MASTER=wordpress-master
    ports:
      - "82:80"
    command: supervisord --nodaemon -c /etc/supervisor/supervisord.conf