It's to workaround issue with missing support for amd-sev-es
feature by cpu used on some cloud providers.
This is actually libvirt issue, and it shouldn't fail to spawn vms in
such case. Please check bugzilla [1] for more details.
According to [1] to workaround that bug edk2-ovmf package can be
downgraded to the previous version and this is what that patch is doing.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1961562
Change-Id: I076fa17852f38afce59107899197b4da4f36596a
To have connectivity through public network to the vms which are on
various nodes in the ci job, we need to configure special bridge called
"br-infra" and connect this bridge with br-ex with patch ports.
This can be done using "multi-node-bridge" role from zuul roles and
"multi-node-setup" added to this repository.
Change-Id: I80d7d2bed8291ba21ddc68b48fef5d0aac996b39
