[PATCH v6 4/6] containers/templates: Templates for Dockerfiles

[Ali Alnubani]

> The Z/z mount option tells podman how to handle SELinux labels on the host system. In this case, the ccache mount is meant to be shared across containers, so we use the lowercase z flag. This is the "shared" mode, which lets all containers access the files.
> 
> It's explained in the Podman docs here: https://docs.podman.io/en/latest/markdown/podman-run.1.html#volume-v-source-volume-host-dir-container-dir-options

Thanks for the info and the reference.