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 https://github.com/rook/rook/issues/14275 This issue affect rook-ceph > 1.13.0 as https://github.com/rook/rook/pull/13239 introduced separate keyring for exporter but somehow didn't actually create exporter keyrings out