Volumes to small for XFS storage class

[marcusboden]

Bug Description

I tried to deploy this charm on a Canonical K8s using xfs storage class, but two of the PVCs were erroring out:

  Warning  FailedMount             13s (x8 over 80s)  kubelet                  MountVolume.MountDevice failed for volume "pvc-d01813ff-28af-4d67-8a4e-083de939fe27" : rpc error: code = Internal desc = exit status 1
  Warning  FailedMount             13s (x8 over 80s)  kubelet                  MountVolume.MountDevice failed for volume "pvc-33b354d7-4b76-4cde-9833-ef50dafbc26e" : rpc error: code = Internal desc = exit status 1

I traced it down in the csi pods, and found that it cannot format the volumes as XFS, because they are too small:

E0212 07:21:34.730109    3636 nodeserver.go:829] ID: 8064 Req-ID: 0001-0024-4adf1e24-0055-11f1-82d4-530be1c4f8a1-0000000000000002-99b4fe7b-9c72-402e-bffb-bc007c4f88e6 failed to run mkfs.xfs ([-K -m reflink=0 /dev/rbd1]) error: exit status 1, output: size 1280 of data subvolume is too small, minimum 4096 blocks

I increased the size of the vols to 1Gi and then the vault could get scheduled.

To Reproduce

1. deploy Canonical K8s
2. deploy vault-k8s

Environment

k8s:

App                      Version          Status  Scale  Charm          Channel         Rev  Exposed  Message
ceph-csi                 v3.13.0,v0,v...  active      3  ceph-csi       1.32/stable      70  no       Versions: cephfs=v3.13.0, config=v0, rbd=v3.13.0
ceph-mon                 19.2.3           active      3  ceph-mon       squid/stable    268  no       Unit is ready and clustered
ceph-osd                 19.2.3           active      3  ceph-osd       squid/stable    632  no       Unit is ready (1 OSD)
grafana-agent-container                   active      3  grafana-agent  1/stable        603  no       tracing: off
grafana-agent-vm                          active      3  grafana-agent  1/stable        603  no       tracing: off
k8s                      1.32.11          active      3  k8s            1.32/stable    1718  no       Ready

Vault:

vault                                     blocked      1  vault-k8s                     1.16/stable    323  10.152.183.161  no       Please initialize Vault or integrate with an auto-unseal provider

Relevant log output

Warning  FailedMount             13s (x8 over 80s)  kubelet                  MountVolume.MountDevice failed for volume "pvc-d01813ff-28af-4d67-8a4e-083de939fe27" : rpc error: code = Internal desc = exit status 1
  Warning  FailedMount             13s (x8 over 80s)  kubelet                  MountVolume.MountDevice failed for volume "pvc-33b354d7-4b76-4cde-9833-ef50dafbc26e" : rpc error: code = Internal desc = exit status 1



E0212 07:21:34.730109    3636 nodeserver.go:829] ID: 8064 Req-ID: 0001-0024-4adf1e24-0055-11f1-82d4-530be1c4f8a1-0000000000000002-99b4fe7b-9c72-402e-bffb-bc007c4f88e6 failed to run mkfs.xfs ([-K -m reflink=0 /dev/rbd1]) error: exit status 1, output: size 1280 of data subvolume is too small, minimum 4096 blocks

Additional context

No response