Example of a docker-compose file to create a local WordPress development setup with Docker.

docker-compose.yml

version: '3.2'
services:
 db:
  image: mysql:5.7
  volumes:
   - db_data:/var/lib/mysql
  restart: on-failure
  environment:
   # Grab this data from wp-config.php
   # TODO: Update DB_HOST in wp-config.php to "db:port"
   MYSQL_ROOT_PASSWORD: wordpress
   MYSQL_DATABASE: wordpress
   MYSQL_USER: wordpress
   MYSQL_PASSWORD: wordpress

 wordpress:
  entrypoint: apache2-foreground
  depends_on:
   - db
  image: jankoch/wordpress:latest
  ports:
   # adjust port if necessary to avoid conflicts
   - 80:80
  restart: on-failure
  volumes:
   # Always use absolute path to WP install
   - .:/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_'

 #PhpMyAdmin will run under localhost:8889
 phpmyadmin:
  image: phpmyadmin/phpmyadmin
  depends_on:
   - db
  ports:
   - 8889:80 
  environment:
   PMA_HOST: db

volumes:
 db_data: