Identity Change Hook Error: TypeError: <charm.openstack.designate.DesignateConfigurationAdapter object> is not JSON serializable

[Eric Vasquez]

Keystone is requiring a relation change and waits on designate.
Designate seems to blow up during configuration.

Log snippet output from designate here:
https://pastebin.canonical.com/p/3DY9cvxR6w

[Alexander Litvinov (alitvinov)]

Facing this issue infield

[Alex Kavanagh (ajkavanagh)]

The bug was in charm-helpers (a recent introduces feature to fix key order problems in hashing). PR#136 (https://github.com/juju/charm-helpers/pull/136) just merged should fix it, so that designate charm just needs to be rebuilt and tested with keystone.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/554247

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: stable/18.02
Review: https://review.openstack.org/554249

[David Ames (thedac)]

Still waiting on OSCI runs for the designate forced rebuilds.

https://review.openstack.org/#/c/554247/
https://review.openstack.org/#/c/554249/

[David Ames (thedac)]

The following are merging and should be in the charm store in the next 20-30 minutes.

https://review.openstack.org/#/c/554247/
https://review.openstack.org/#/c/554249/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/554247
Committed: https://git.openstack.org/cgit/openstack/charm-designate/commit/?id=293fc11bc0d4f8f18467a4bebec251db57e76300
Submitter: Zuul
Branch: master

commit 293fc11bc0d4f8f18467a4bebec251db57e76300
Author: Alex Kavanagh <email address hidden>
Date: Mon Mar 19 14:48:13 2018 +0000

    Rebuild charm to get charm-helpers 0.18.7

    This is to fix a regression introduced in charm-helpers 0.18.6
    which caused designate to crash when it tried access cached hookenv
    config in charms.openstack ConfigurationAdapter class

    Change-Id: I5813229481f660b6da8918fa4d72f78610ea3b55
    Closes-Bug: #1756412

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/554249
Committed: https://git.openstack.org/cgit/openstack/charm-designate/commit/?id=82d2b9236b993935ed1ca3113fc1ebd6566f8695
Submitter: Zuul
Branch: stable/18.02

commit 82d2b9236b993935ed1ca3113fc1ebd6566f8695
Author: Alex Kavanagh <email address hidden>
Date: Mon Mar 19 14:56:36 2018 +0000

    Rebuild charm to get charm-helpers 0.18.7 for stable build

    This is to fix a regression introduced in charm-helpers 0.18.6
    which caused designate to crash when it tried access cached hookenv
    config in charms.openstack ConfigurationAdapter class

    Note: related bug below, as fix is in master.

    Change-Id: I6041c0eacf09d7fda1529f0f657bf6fe12b8b3e7
    Related-Bug: #1756412

[Alex Kavanagh (ajkavanagh)]

The charmstore has the updated charm built with charmhelpers 0.18.7. Can we confirm onsite please so we can close the bug and/or reduce the severity please?

[Alexander Litvinov (alitvinov)]

/var/log dump from unit designate/0

[David Ames (thedac)]

Alex Litvinov,

Can you please re-check. I just pulled designate down from the charm store and ran a test I used that showed this bug, and it is no longer showing it.

Please make sure the charm is not cached.

[Alexander Litvinov (alitvinov)]

David,
It is working now with 18th charm.
Thank you for a quick fix