Update charm to update the root kubeconfig with a current CA #354
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Overview
Each config hook should do it's best to update the root kubeconfig to have a valid ca cert.
Details
According to the bug LP#2064305, the charm code couldn't connect to the control-plane because
This can be caused by the CA being invalid on the next charm hook. This PR addresses the issue by ensuring the CA cert is correct on each possible reconcile loop
Draft until the following is merged