[Bug 1917323] Re: [NetApp][Ussuri] cifs error since ontap 9.5: Failed to set preferred DC

[Corey Bryant]

Ionut, thanks for this. The patch has been cherry-picked and new package version uploaded to the focal unapproved queue. https://launchpad.net/ubuntu/focal/+queue?queue_state=1&queue_text=manila
Once it lands in focal-proposed it will backport to ussuri-proposed.

Note: we currently don't have an exception for uploading point releases
for manila - https://wiki.ubuntu.com/OpenStack/StableReleaseUpdates. We
can work on that if we get the right testing in place to regression test
new point releases.

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https://bugs.launchpad.net/bugs/1917323

Title:
  [NetApp][Ussuri] cifs error since ontap 9.5: Failed to set preferred
  DC

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive ussuri series:
  Triaged
Status in Ubuntu Cloud Archive victoria series:
  Fix Released
Status in manila package in Ubuntu:
  Fix Released
Status in manila source package in Focal:
  Triaged
Status in manila source package in Groovy:
  Fix Released
Status in manila source package in Hirsute:
  Fix Released

Bug description:
  starting with ONTAP 9.5 I get

  And indeed, the ONTAP API for cifs-domain-preferred-dc-add has a new
  required boolean option "skip-config-validation"

  [Impact]
  Using new releases of NetApp ONTAP (>= 9.5) leads to the following bug in the Manila code:
  https://bugs.launchpad.net/manila/+bug/1887643

  As Maurice Escher states, this results in the following error when
  creating a CIFS share with security service server set to some value:

  NetApp API failed. Reason - 13006:Missing input: skip-config-
  validation

  Only Ussuri distro packages are affected by this issue.

  This bug can be reproduced only when using `cifs` shares, and only
  when the driver handles shares servers.

  The issue was already fixed upstream, and it's even included in the
  latest Ussuri minor release: 10.0.2 (or even 10.0.1). Our Ubuntu
  distro packages install 10.0.0, and do not have this issue fixed.

  [Test Case]

  [Where problems could occur]
  If the ontapi_version version was not calculated correctly the skip-config-validation config will result in the same error reported in this bug. Testing this code path will help mitigate this.

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