I'm creating this as a new topic, although it has
partly been discussed earlier.
Now I have a better understanding of the problem so its
best discussed as a new topic.
The issue is that the certificate that is generated by
the ansible installer for the docker repository is not
correct, so any builder process that tries to push to
the repo fails with an error like this:
docker-registry.default.svc is not included in the
names. The os.informaticsmatters.com
related hostname comes from the value of the
openshift_master_cluster_public_hostname and/or the
variables in the inventory file. Is this present to
allow the registry to be exposed externally?