Docker Image with the latest WordPress version on top of NGINX and PHP7.2-FPM

Overview

This Docker image derives from the nginx-php7.2 image and installs the latest version of Wordpress that is available on GitHub.

For Users

The Initial Startup

The container keeps the entire WordPress installation at /var/www/html. Initially there is no configuration file wp-config.php that contains the settings for the database and security keys. The startup script sets everything up for you, so you don't have to use the WordPress setup wizzard. The startup script copies the sample configuration file wp-config-sample.php shipped with the WordPress installation to wp-config.php and applies the desired settings specified using environment variables below. At least WORDPRESS_DB_HOST, WORDPRESS_DB_USER, WORDPRESS_DB_PASSWORD are required when running the container the first time.

If you want to persist your WordPress installation, installed addons and uploaded content across container restarts, you should create a named volume and mount it at /var/www/html in the container. Otherwise Docker will delete the container at shutdown including all the addons and additional content!

Environment Variables

STARTUP_VERBOSITY

Determines the verbosity of the Griffin+ Container Startup System (see here for details).

• 0 => Logging is disabled.
• 1 => Only errors are logged.
• 2 => Errors and warnings are logged.
• 3 => Errors, warnings and notes are logged.
• 4 => Errors, warnings, notes and infos are logged.
• 5 => All messages (incl. debug) are logged.

Default Value: 4

WORDPRESS_DB_HOST

The name of the host running the MySQL/MariaDB database WordPress will use.

This setting is mandatory, if WordPress does not have a wp-config.php file, yet.

The setting in wp-config.php is overridden, if this environment variable is specified.

WORDPRESS_DB_USER

The name of the database user to use to log in to the database.

This setting is mandatory, if WordPress does not have a wp-config.php file, yet.

The setting in wp-config.php is overridden, if this environment variable is specified.

WORDPRESS_DB_PASSWORD

The password of the database user to use to log in to the database.

This setting is mandatory, if WordPress does not have a wp-config.php file, yet.

The setting in wp-config.php is overridden, if this environment variable is specified.

WORDPRESS_DB_NAME

The name of the database to use.

The setting in wp-config.php is overridden, if this environment variable is specified.

Default Value: wordpress

WORDPRESS_TABLE_PREFIX

The database table prefix to use.

The setting in wp-config.php is overridden, if this environment variable is specified.

Default Value: wp_

WordPress Security Keys

The following environment variables force security keys (AUTH_KEY, AUTH_SALT, SECURE_AUTH_KEY, SECURE_AUTH_SALT, LOGGED_IN_KEY, LOGGED_IN_SALT, NONCE_KEY and NONCE_SALT) to be set in wp-config.php. A random character sequence is generated, if wp-config.php is created initially. The setting in wp-config.php is not touched, if wp-config.php already exists and the corresponding environment variables are not specified.

• WORDPRESS_AUTH_KEY
• WORDPRESS_AUTH_SALT
• WORDPRESS_SECURE_AUTH_KEY
• WORDPRESS_SECURE_AUTH_SALT
• WORDPRESS_LOGGED_IN_KEY
• WORDPRESS_LOGGED_IN_SALT
• WORDPRESS_NONCE_KEY
• WORDPRESS_NONCE_SALT

PHP Specific Settings

Please see the documentation of the nginx-php7.2 image for available configuration options concerning PHP7.2-FPM.