As of today, the charm @ git master can deploy Xenial-Queens, using
ksv3, and sync images, if the dev ppa of simplestreams is used.  There
are SRUs of simplestreams packages underway.

We've added a test suite to the charm as well, which is what has allowed
us to confirm the combos which are ok, and raise simplestreams
regression reports against those that are not.  We will be adding that
test suite to a charm test gate in gerrit ASAP, to keep it all healthy
going forward.

The updated charm will not be released to the charm store until we can
verify that it actually works where expected and that it does not
regress functionality on the existing releases.  This validation is in
tandem with the simplestreams SRU.

#### Workaround and Verification:
Use the charm at current master and set the 'source' charm config at 
deploy-time to 'ppa:simplestreams-dev/trunk' to pick up the version of 
simplestreams which supports ksv3.

We have not yet tested a charm-upgrade and post-deploy package upgrade
scenario, but that should also be possible.  If anyone validates that
before we do, please report back on this bug with your findings.

#### Repo:
https://github.com/openstack-charmers/charm-glance-simplestreams-sync

https://github.com/openstack-charmers/charm-glance-simplestreams-
sync/commit/d8355af37c1b8683b33b39c873a672abdfa3eb2c

#### Workload status correction:
Earlier in this bug, I observed that this charm had not implemented workload 
status updates, but it has, with some caveats.

The charm will show in an unknown state until the first image sync
begins.  If the sync never begins, the workload status is never updated.
That condition exists today by default with the released version of
simplestreams on Xenial, when used with ksv3, hence no workload status
in my initial test case.

Ex. when things go well, workload status is updated and helpful:

glance-simplestreams-sync/1*  maintenance  idle       6        10.5.0.3
Synchronising images

We will keep this bug updated as it all progresses.

** Changed in: charm-glance-simplestreams-sync
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1611987

Title:
  glance-simplestreams-sync charm doesn't support keystone v3

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