DO NOT USE THIS IMAGE IN PRODUCTION
As a WordPress plugin developer you often need a "clean" testing environment to test your plugin against different php versions, different WordPress releases or cross-plugin-compatibility.
This testing environment is build upon php-runtime-dev running the php build-in webserver.
It requires an external MySQL Database as storage backend. The wp-config.php has been changed to accept a simple DSN to configure the database credentials via a single environment variable!
Each of your plugins should contain a dedicated dockerfile which extends this runtime. See Cryptex Plugin or Enlighter Plugin for real-world scenarios.
DSN String
The database source name (passed as WP_DSN env variable) has the following structure. The fragment is optionally used as table-prefix (default: wp_)
DSN: mysql://user:passwd@host/table_name#table_prefix
Example Setup
FROM wp-dev
# copy release files to wordpress plugin directory
COPY --chown="www-data:www-data" dist/ /srv/public/wp-content/plugins/enlighterRun Container
# build the test container
docker build -t myplugin-runtime .
# run container in interactive mode. remove container on close (ctrl+c)
docker run -p 8080:8080 --rm -e WP_DSN="mysql://user:passwd@mysql.instance.local/wordpress_test" --interactive --name myplugin-test myplugin-runtime