Drupal & Drush compatible PHP-FPM image
Unfortunately, due to how drush is implemented, there is a silent dependency on the MySQL client, which means this your PHP-FPM container will need the
mysql-client package installed if there is a need to run drush commands on it. Hopefully drush will be re-implemented to use native PHP MySQL drivers, and this image will no longer be necessary.
Issue on github for more information: