Rework useradd(etc) sysusers integration to work in container flow #4092
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First, right now our container flow doesn't use the "unified core" mode which means we aren't intercepting scripts. We hence can't set the environment variable which gives us the package name.
Rework the sysusers file generation to not include the package name - in the end, while it is useful for debugging, in practice I don't think it's necessary.
Next, if we're in a container build, turn on the sysusers.d interception by default. I think this is the default stance we should be taking now, and the container flow is a fresh new API.
Finally, add support for
useradd -G
which is used by libvirt, e.g. https://src.fedoraproject.org/rpms/libvirt/blob/rawhide/f/libvirt.spec#_1621useradd -r -u 107 -g qemu -G kvm -d / -s /sbin/nologin -c "qemu user" qemu