compose/docs/wordpress.md

layout	title
default	Getting started with Fig and Wordpress

Getting started with Fig and Wordpress

Fig makes it nice and easy to run Wordpress in an isolated environment. Install Fig, then write a Dockerfile which installs PHP and Wordpress:

FROM orchardup/php5

ADD http://wordpress.org/wordpress-3.8.1.tar.gz /wordpress.tar.gz
RUN tar -xzf /wordpress.tar.gz
ADD wp-config.php /wordpress/wp-config.php

ADD router.php /router.php

This instructs Docker on how to build an image that contains PHP and Wordpress. For more information on how to write Dockerfiles, see the Dockerfile tutorial and the Dockerfile reference.

Next up, fig.yml starts our web service and a separate MySQL instance:

web:
  build: .
  command: php -S 0.0.0.0:8000 -t /wordpress
  ports:
    - 8000:8000
  links:
    - db
db:
  image: orchardup/mysql
  ports:
    - 3306:3306
  environment:
    MYSQL_DATABASE: wordpress

Our Dockerfile relies on two supporting files - first up, wp-config.php is the standard Wordpress config file with a single change to make it read the MySQL host and port from the environment variables passed in by Fig:

<?php
define('DB_NAME', 'wordpress');
define('DB_USER', 'root');
define('DB_PASSWORD', '');
define('DB_HOST', getenv("DB_1_PORT_3306_TCP_ADDR") . ":" . getenv("DB_1_PORT_3306_TCP_PORT"));
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');

Finally, 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';

With those four files in place, run fig up and it'll pull and build the images we need, and then start the web and database containers. You'll then be able to visit Wordpress and set it up by visiting localhost:8000 - or localdocker:8000 if you're using docker-osx.