Merge pull request #44635 from Cynerva/gkk/ceph-secret-type

Automatic merge from submit-queue

Fix ceph-secret type to kubernetes.io/rbd in kubernetes-master charm

**What this PR does / why we need it**:

This fixes the type of the ceph-secret secret that's created by the kubernetes-master charm.

Without the `kubernetes.io/rbd` type, automatic provisioning of PVCs doesn't work.

**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #

**Special notes for your reviewer**:

**Release note**:

```release-note
Fix ceph-secret type to kubernetes.io/rbd in kubernetes-master charm
```

cluster/juju/layers/kubernetes-master/templates/ceph-secret.yaml

@@ -2,6 +2,6 @@ apiVersion: v1
 kind: Secret
 metadata:
   name: ceph-secret
-type: Opaque
+type: kubernetes.io/rbd
 data:
   key: {{ secret }}