[Task] Check how pull secret can be modified for the cluster.

[praveenkumar]

As of now, we know that pull secret is part of the secrets/coreos-pull-secret and that is in the etcd database, to make change we need to edit it. This task is to check once we edit it does it sustain a reboot?

$ oc edit secrets/coreos-pull-secret -o yaml -n kube-system
<---Edit the base64 encoded Pull secret to new one -->

[praveenkumar]

I tested to edit the secrets/coreos-pull-secret and then reboot the system and it comes up with changed one which means during start=>stop=>start scenario we are good in case we change it for the specific user.

Another thing is we can't put there a place holder but we need to have a dummy pull secret which can be identified as a pull secret by the validator.

$ ./oc edit secrets/coreos-pull-secret -o yaml -n kube-system
error: secrets "coreos-pull-secret" is invalid
A copy of your changes has been stored to "/tmp/oc-edit-kdv1n.yaml"
error: Edit cancelled, no valid changes were saved.