[libvirt PATCH] gitlab: use custom docker:dind image

[Erik Skultety]

On Thu, Jul 29, 2021 at 11:36:30AM +0100, Daniel P. Berrangé wrote:
> The current docker:dind container has broken default seccomp filter that
> results in clone3 being blocked, which in turn breaks Fedora 35 rawhide.
> 
> This custom image has a workaround that causes the seccomp filter to
> return ENOSYS for clone3 instad of EPERM, thus triggering glibc to
> fallback to clone correctly.
> 
> Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
> ---
Reviewed-by: Erik Skultety <eskultet at redhat>