+++ This bug was initially created as a clone of Bug #1840222 +++

In CI, we're seeing sometimes that /etc/coredns/Coredns gets rendered without forwarders:

[root@master-1 ~]# cat /etc/coredns/Corefile      
. {
    errors
    health :18080
    mdns ostest.test.metalkube.org 0 ostest
    forward .
    cache 30
    reload
    hosts {
        fd2e:6f44:5dd8:c956::5 api-int.ostest.test.metalkube.org
        fd2e:6f44:5dd8:c956::5 api.ostest.test.metalkube.org
        fallthrough
    }
    template IN A ostest.test.metalkube.org {
        match .*.apps.ostest.test.metalkube.org
        answer "{{ .Name }} 60 in a fd2e:6f44:5dd8:c956::4"
        fallthrough
    }
}

And Coredns refuses to start:

[root@master-1 ~]# sudo crictl logs ca13312378976
plugin/forward: /etc/coredns/Corefile:5 - Error during parsing: Wrong argument count or unexpected line ending after '.'


When this happens, the node becomes NotReady. This seems to be the source of many of the 4.5 failures in CI for e2e-metal-ipi.