[Bug 2085616] [NEW] ceph 'failed to probe daemons or devices' due to apparmor

[Dominique Ramaekers]

Public bug reported:

Upgraded one of my hosts from 22.04 to 24.04. Now I get a warning
"failed to probe daemons or devices".

I've reported this issue on the ceph users mailing list, but it seems
Ubuntu-specific.

ceph health detail gives me:
HEALTH_WARN failed to probe daemons or devices
[WRN] CEPHADM_REFRESH_FAILED: failed to probe daemons or devices
    host hvs004 `cephadm gather-facts` failed: cephadm exited with an error code: 1, stderr: Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/__main__.py", line 5579, in <module>
  File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/__main__.py", line 5567, in main
  File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/__main__.py", line 4639, in command_gather_facts
  File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/cephadmlib/host_facts.py", line 835, in dump
  File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/cephadmlib/host_facts.py", line 743, in kernel_security
  File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/cephadmlib/host_facts.py", line 722, in _fetch_apparmor
ValueError: too many values to unpack (expected 2)

The only workarond seems to disable Apparmor and reboot the host.

** Affects: ceph (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  ceph 'failed to probe daemons or devices' due to apparmor

Status in ceph package in Ubuntu:
  New

Bug description:
  Upgraded one of my hosts from 22.04 to 24.04. Now I get a warning
  "failed to probe daemons or devices".

  I've reported this issue on the ceph users mailing list, but it seems
  Ubuntu-specific.

  ceph health detail gives me:
  HEALTH_WARN failed to probe daemons or devices
  [WRN] CEPHADM_REFRESH_FAILED: failed to probe daemons or devices
      host hvs004 `cephadm gather-facts` failed: cephadm exited with an error code: 1, stderr: Traceback (most recent call last):
    File "<frozen runpy>", line 198, in _run_module_as_main
    File "<frozen runpy>", line 88, in _run_code
    File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/__main__.py", line 5579, in <module>
    File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/__main__.py", line 5567, in main
    File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/__main__.py", line 4639, in command_gather_facts
    File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/cephadmlib/host_facts.py", line 835, in dump
    File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/cephadmlib/host_facts.py", line 743, in kernel_security
    File "/var/lib/ceph/dd4b0610-b4d2-11ec-bb58-d1b32ae31585/cephadm.a58127a8eed242cae13849ddbebcb9931d7a5410f406f2d264e3b1ed31d9605e/cephadmlib/host_facts.py", line 722, in _fetch_apparmor
  ValueError: too many values to unpack (expected 2)

  The only workarond seems to disable Apparmor and reboot the host.

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