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Docker for Web Developers

WordPress and Compose

Learn the configurations needed for Compose to launch WordPress.

We'll cover the following...

Docker Compose configuration

A WordPress project directory named wordpress is a good choice to have our WordPress-related files in. You’ll be using Docker Compose, so we need a docker-compose.yml file in the root of the directory. Edit it as:

YAML
version: '3'
services:
  mysql:
    image: mysql:5
    container_name: mysql
    environment:
      - MYSQL_DATABASE=wpdb
      - MYSQL_USER=wpuser
      - MYSQL_PASSWORD=wpsecret
      - MYSQL_ROOT_PASSWORD=mysecret
    volumes:
      - wpdata:/var/lib/mysql
    ports:
      - "3306:3306"
    networks:
      - wpnet
    restart: on-failure
  wordpress:
    image: wordpress
    container_name: wordpress
    depends_on:
      - mysql
    environment:
      - WORDPRESS_DB_HOST=mysql
      - WORDPRESS_DB_NAME=wpdb
      - WORDPRESS_DB_USER=wpuser
      - WORDPRESS_DB_PASSWORD=wpsecret
    volumes:
      - wpfiles:/var/www/html
      - ./wp-content:/var/www/html/wp-content
    ports:
      - "80:80"
    networks:
      - wpnet
    restart: on-failure
volumes:
  wpdata:
  wpfiles:
networks:
  wpnet:

The following sections describe this configuration in detail.

Environment variables

The MySQL environment variables MYSQL_DATABASE, MYSQL_USER, and MYSQL_PASSWORD define a new database named ...