Allow ceph-client to be related with a warning to no longer manage #353
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Overview
Allow upgrading from 1.28 charms and prior while related over the
ceph-client
relation. Will warn that ceph-client is a deprecated relationDetails
The kubernetes-control-plane charm should no longer manage ceph workloads, (ceph xfs, ceph rdb, ceph-fs) which instead should be delegated to the ceph-csi charm. For those upgrading from 1.28 when this relation existed, the existing workloads they are running deployed via the older versions of the charm will remain and be unmanaged by the charm. Post upgrade, one can remove the relation and the charm will not disturb its deployment.
LP: https://bugs.launchpad.net/charm-kubernetes-master/+bug/2070053