Due to MariaDB diverging from MySQL, MariaDB-11.0+ containers
don't include mysql compatibility links and use mariadb as the
CLI. This has been there since MariaDB-10.4.
Co-authored-by: Tianon Gravi <admwiggin@gmail.com>
The way we handle this semi-gracefully is to create a fake "docker save" tarball that contains just a single layer whose parent is the image we're wanting to test, and whose "config" is the same as the parent image, but with "OnBuild" nulled out, and adjust the build to use that new layer as the base for the build instead.