feat: Support this role in container builds

Feature: Support running the cockpit role during container builds.

Reason: This is particularly useful for building bootc derivative OSes.

Result: These flags enable running the bootc container scenarios in CI,
which ensures that the role works in buildah build environment. This
allows us to officially support this role for image mode builds.

Do *not* enable the role for system containers (the `container`) flag.
`rsyslog.service` is not designed to work in containers, and fails in
all RHEL/CentOS and older Fedora releases (it finally works in Fedora
42).

Fixes https://issues.redhat.com/browse/RHEL-88689

Author: martinpitt

meta/main.yml

@@ -24,4 +24,5 @@ galaxy_info:
     - logging
     - redhat
     - rsyslog
+    - containerbuild
 allow_duplicates: true