rook ceph exporter init failed with secret "rook-ceph-exporter-keyring" not found

[ricolin]

root@instance:/home/ubuntu# kubectl -n openstack describe pod rook-ceph-exporter-instance-54df8dfc9b-2v996
Events:
  Type     Reason       Age                  From     Message
  ----     ------       ----                 ----     -------
  Warning  FailedMount  42s (x869 over 29h)  kubelet  MountVolume.SetUp failed for volume "rook-ceph-exporter-keyring" : secret "rook-ceph-exporter-keyring" not found

This is due to missing secret like reported on rook/rook#14275
This issue affect rook-ceph > 1.13.0 as rook/rook#13239 introduced separate keyring for exporter but somehow didn't actually create exporter keyrings out

[parth-gr]

Seems like you havent create the external cephcluster CR https://github.com/rook/rook/blob/master/deploy/examples/external/cluster-external.yaml