I spoke to Andreas and Renan about this bug just now. I'm told that 32.2
in proposed passes all verification tests against the exceptional test
plan except for this bug. But we also need this bug fixed and don't want
to have to wait for the additional time a full test rerun would take
along with a further ageing period.

If we were to land exceptional SRU in proposed right now, then perform a
regular SRU for a 32.3 with this bug fixed, then the second SRU would
only require normal SRU verification for the particular fix being
applied (test plan to include both the B->F upgrade case and the fresh
installation F case, but checking apparmor behaviour only).

Given that exceptional test plan verification against 32.2 is already
complete and passed except for this bug, I think that not releasing 32.2
in proposed currently, replacing it with a 32.3, and then SRU-verifying
only this bug is equivalent from a QA perspective and therefore
acceptable and preferable in this case. We would then be able to release
32.3 to updates as normal.

Plan of action:

1. Update this bug "Where problems could occur" with the specifics that
Renan mentioned earlier, and link to this comment to explain what is
going on from both this bug and tracking bug 2060732.

2. Complete the Test Plan for this bug to the satisfaction of one SRU
team member (Andreas?) treating it as the Test Plan like one would for a
regular SRU of this fix only (exercising AppArmor sufficiently for both
the B->F upgrade and F fresh install cases and a smoke test to make sure
the client still works if not included implicitly in exercising AppArmor
is sufficient IMHO; use of automation is fine as always).

3. Complete the verification report for 32.2 in bug 2060732 as normal,
except without the final change of the tags since we do not intend to
release it.

4. Accept 32.3 into proposed (for all series) to address this bug
2067319. The upload should use -v to include the previous upload as
well.

5. The bugs already verified (eg. tracking bug 2060732 but also any
others previously verified) can be re-marked as verified with only a
link to this comment as explanation (no re-verification required).

6. SRU-verify this bug 2067319 like you would a regular SRU.

7. Release when ready. I also agree that we can skip the ageing period
as the only testing expected to be done is by us.

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https://bugs.launchpad.net/bugs/2067319

Title:
  After upgrading from bionic to focal, esm-cache.service hits apparmor
  denials

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