Change 200625 had a related patch set uploaded (by Thcipriani):
Assign swift roles via ENC

https://gerrit.wikimedia.org/r/200625

Roughly followed wikitech instructions for swift cluster: https://wikitech.wikimedia.org/wiki/Swift/Setup_New_Swift_Cluster

Requires a couple of bash scripts, but can be spun up and down in ~15 mins.

Process

1. Create staging-ms-be{0..3} and run puppet on each instance
2. Create loopback storage on each backend: https://phabricator.wikimedia.org/P453 and run puppet again
3. Create staging-ms-fe01 and run puppet
4. Run https://phabricator.wikimedia.org/P454 on staging-ms-fe01 to create account, object, container builders and rings
5. Copy {account,container,object}.{builder,ring.gz} from /etc/swift/ on staging-ms-fe01 to /var/lib/puppet/volatile/swift/staging on palladium
6. Run puppet agent on staging-ms-be{0..3} to distribute builder and rings
7. Run https://phabricator.wikimedia.org/P455 on staging-ms-fe01 to create the mw:media and swift:dispersion accounts and users

still need imagescaler and mw-app instance to really finish off this task, but I think that updates to https://wikitech.wikimedia.org/wiki/Hiera:Staging plus the patch above cover most of the work.

Steps 2, 4, 5 and 7 are icky, but otherwise this is pretty straightforward.

Change 200625 merged by Filippo Giunchedi:
Assign swift roles via ENC

https://gerrit.wikimedia.org/r/200625