Extending Docker WordPress Image

• How to Add XDebug to the Official Docker WordPress Image
  Use a Dockerfile to add XDebug to the official Docker WordPress image:
  • Build your own WordPress image with XDebug enabled.
    See examples of Dockerfile and docker-compose.yml.
  • Do not want to build? Download a pre-made image from a repository on Docker Hub.
  • See how to configure PhpStorm for debugging.
  • Learn how to separate production and development environments using multiple Docker Compose files.
  • See how to use Nginx in Docker as a Reverse Proxy.
  • See how to add PHP extensions to the Docker WordPress Image.
• How to Use WordPress Docker Container for Testing Themes and Plugins Locally
  Test WordPress themes and plugins locally in Docker containers before deploying them on production:
  • Install WordPress quickly with Docker Compose.
    See the example of docker-compose.yml.
  • Reinstall WordPress in a Docker container easily.
• [Docker] How to Set up Postfix Containers and Send Emails From WordPress in Docker
  Add SMTP mail functionality to a Docker WordPress image. See how to
  • Set up a Postfix Docker container with DKIM.
  • Configure your Docker WordPress Container to Use Postfix
  • Add Postfix to a WordPress container with a Dockerfile.
  • Set a PTR record for reverse DNS lookup.
  • Set DNS records: SPF and DKIM.

How to Extend

The official Docker WordPress image is minimal. It does not contain many PHP extensions even if they are required by popular WordPress plugins.

How to extend the functionality of the official WordPress image:

• Add PHP extensions
• Add email-sending functionality
• Add XDebug

Please also see this article to quickly set up a WordPress test environment in a Docker container for testing plugins and themes locally before deploying them to production.

Why Is the Image Minimal?

Keeping the WordPress image minimal follows the decoupling principle. In short, this principle means that each container should handle only one concern. If additional functionality is needed, it should be managed by a separate container.