PHP base docker image

...with integration examples, development support and production-ready focus.

It includes PHP application container (ready for production use, with development tools available) - based on Debian, as well as documentation and examples for integration with other components.

This master branch includes only documentation and examples. For docker container implementation, see branches (each docker release tag corresponds to seperate branch of this repository).

Versions, branches

Branch	Docker image tags
7.4-bullseye	korekontrol/php:7.4 korekontrol/php:7.4-bullseye
7.3-buster	korekontrol/php:7.3 korekontrol/php:7.3-buster

Images are published daily to docker hub repository

Motivation

There are many examples which explain how to build PHP containers with Docker. There are also official PHP docker repostories. However, during our experience with customer projects at KoreKontrol, we found that most of the examples cover only basic cases - what is needed in real, production hosting is often much more complicated.

Our goals:

• Optimise container sizes. Don't include unneeded crap, like compilers, nodejs, development libraries etc. Small containers are must-have for quick builds and deployments.
• Provide daily images, with latest patches and minor versions.
• Include opcache, xdebug and composer.
• Integrate with modern frameworks.
• Support node.js frontend builds.
• Include asset files in seperate NginX container, without volumes for sharing files.

Examples

• hello-world - really basic PHP web application, with composer and static assets

Reference

Configuration

Following environmental variables are used by the PHP container:

Variable	Default value	Comments
PHP_MEMORY_LIMIT	256m	Per-process memory limit
PHP_OPCACHE_ENABLE	1	Enable/disable opcache extension
PHP_OPCACHE_MEMORY_CONSUMPTION	64	Per-container opcache memory size (in MB)
PHP_OPCACHE_REVALIDATE_FREQ	2	Ignored if timestamp validation is not enabled
PHP_OPCACHE_VALIDATE_TIMESTAMPS	0	Set it to 1 on development environment
PHP_XDEBUG_ENABLE	0	Enable/disable xdebug module; setting it to 1 will disable opcache. Don't use on production.

Credits

Created by Marek Obuchowicz from KoreKontrol

License

MIT