Jan Koch's wp docker-compose.yml

version: '3.2'
services:
 db:
  # Specify the version of DB you want to run
  image: mysql:5.7
  volumes:
  # TODO: create a directory "db_data" in the root folder of your installation
   - db_data:/var/lib/mysql
  restart: always
  environment:
   # Grab this data from wp-config.php
   # TODO: Update DB_HOST in wp-config.php to "db:port"
   # TODO: Update the database login in wp-config.php to the values set below
   MYSQL_ROOT_PASSWORD: wordpress
   MYSQL_DATABASE: wordpress
   MYSQL_USER: wordpress
   MYSQL_PASSWORD: wordpress

 wordpress:
  entrypoint: apache2-foreground
  depends_on:
  # Tell the WordPress container to talk to the DB container
   - db
  image: jankoch/wordpress:1.0
  ports: 
   # Adjust port if necessary to avoid conflicts
   - 8080:80
  restart: always
  volumes: 
   # Map your current directory to /var/www/html inside the Docker container
   - .:/var/www/html
  environment:
   # Update login data + table prefix from wp-config.php
   WORDPRESS_DB_HOST: db:3306
   WORDPRESS_DB_PASSWORD: wordpress
   WORDPRESS_TABLE_PREFIX: 'wp_'

  # Optional: start up PhpMyAdmin with WordPress and the DB
 phpmyadmin:
  image: phpmyadmin/phpmyadmin
  depends_on:
  # Tell PhpMyAdmin which DB container to connect to
   - db
  ports:
   - 8889:80
  environment:
   PMA_HOST: db

volumes:
 db_data: