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Docker WordPress

A Docker Compose stack for deploying WordPress using a Traefik proxy, based on the official WordPress image.

Usage

Local:

  • Download and extract WordPress sources in wordpress/src
  • Run the local docker-compose stack: docker-compose -f docker-compose-local.yml up

Production:

  1. Set correct permissions on acme.json file to allow Traefik to write certificates:
chmod 600 traefik/acme.json
  1. WordPress may need FORCE_SSL_ADMIN to properly load stylesheets and force HTTPS in the admin dashboard:
define('FORCE_SSL_ADMIN', true);

// If we're behind a proxy server and using HTTPS, we need to alert WordPress of that fact
// see also https://wordpress.org/support/article/administration-over-ssl/#using-a-reverse-proxy
if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strpos($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') !== false) {
 $_SERVER['HTTPS'] = 'on';
}

Adding PHP extensions

Depending on your requirements, you can either use the default WordPress image:

services:
  wordpress:
    image: wordpress:latest

Or build a custom image with additional PHP extensions. To do this, modify the wwordpress service in docker-compose.yml to use a local build:

services:
  wordpress:
    build:
      dockerfile: ./wordpress/docker/Dockerfile