quick-wordpress-docker-compose

docker-compose.yml

version: '3'

services:

  wordpress:
    image: wordpress:4.9
    ports:
      - "127.0.0.1:8080:80"
    volumes:
      - ./wp-content/themes:/var/www/html/wp-content/themes
      - ./wp-content/plugins:/var/www/html/wp-content/plugins
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_NAME: wordpress
      WORDPRESS_DB_PASSWORD: wordpress

  db:
    image: mysql:5.7
    ports:
      - "127.0.0.1:3306:3306" # Expose so we can connect locally
    volumes:
      - db_data:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress

volumes:
    db_data:

Updated for docker-compose yaml v3.

wp-content is volumed in for local development of themes / plugins.

MySQL is also exposed locally since you probably want to be able to access it in dev.