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page_title: Quickstart Guide: Compose and Wordpress page_description: Getting started with Docker Compose and Rails page_keywords: documentation, docs, docker, compose, orchestration, containers, wordpress

Getting started with Compose and Wordpress

You can use Compose to easily run Wordpress in an isolated environment built with Docker containers.

Define the project

First, Install Compose and then download Wordpress into the current directory:

$ curl https://wordpress.org/latest.tar.gz | tar -xvzf -

This will create a directory called wordpress. If you wish, you can rename it to the name of your project.

Next, inside that directory, create a Dockerfile, a file that defines what environment your app is going to run in. For more information on how to write Dockerfiles, see the Docker user guide and the Dockerfile reference. In this case, your Dockerfile should be:

FROM orchardup/php5
ADD . /code

This tells Docker how to build an image defining a container that contains PHP and Wordpress.

Next you'll create a docker-compose.yml file that will start your web service and a separate MySQL instance:

version: 1.0
services:
  web:
    build: .
    command: php -S 0.0.0.0:8000 -t /code
    ports:
      - "8000:8000"
    links:
      - db
    volumes:
      - .:/code
  db:
    image: orchardup/mysql
    environment:
      MYSQL_DATABASE: wordpress

Two supporting files are needed to get this working - first, wp-config.php is the standard Wordpress config file with a single change to point the database configuration at the db container:

<?php
define('DB_NAME', 'wordpress');
define('DB_USER', 'root');
define('DB_PASSWORD', '');
define('DB_HOST', "db:3306");
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

define('AUTH_KEY',         'put your unique phrase here');
define('SECURE_AUTH_KEY',  'put your unique phrase here');
define('LOGGED_IN_KEY',    'put your unique phrase here');
define('NONCE_KEY',        'put your unique phrase here');
define('AUTH_SALT',        'put your unique phrase here');
define('SECURE_AUTH_SALT', 'put your unique phrase here');
define('LOGGED_IN_SALT',   'put your unique phrase here');
define('NONCE_SALT',       'put your unique phrase here');

$table_prefix  = 'wp_';
define('WPLANG', '');
define('WP_DEBUG', false);

if ( !defined('ABSPATH') )
    define('ABSPATH', dirname(__FILE__) . '/');

require_once(ABSPATH . 'wp-settings.php');

Second, router.php tells PHP's built-in web server how to run Wordpress:

<?php

$root = $_SERVER['DOCUMENT_ROOT'];
chdir($root);
$path = '/'.ltrim(parse_url($_SERVER['REQUEST_URI'])['path'],'/');
set_include_path(get_include_path().':'.__DIR__);
if(file_exists($root.$path))
{
    if(is_dir($root.$path) && substr($path,strlen($path) - 1, 1) !== '/')
        $path = rtrim($path,'/').'/index.php';
    if(strpos($path,'.php') === false) return false;
    else {
        chdir(dirname($root.$path));
        require_once $root.$path;
    }
}else include_once 'index.php';

Build the project

With those four files in place, run docker-compose up inside your Wordpress directory and it'll pull and build the needed images, and then start the web and database containers. You'll then be able to visit Wordpress at port 8000 on your Docker daemon (if you're using Boot2docker, boot2docker ip will tell you its address).

More Compose documentation