Puppet has been disabled on iridium (The server hosting
phabricator.wikimedia.org) for some time now due to broken deployment
configuration.
We (Myself and Ariel) are going to attempt to re-enable puppet today at
20:00 UTC (Noon, Pacific), taking advantage of the lower than normal level
of activity on Phabricator due to the US Holiday. There shouldn't be any
noticeable downtime, however, phabricator might respond with 5xx errors or
become unresponsive for a short time around 20:10. Maintenance should be
finished before 20:30.
I apologize for the short notice, this should have been sent out on Friday.
Although I do not expect this to cause any issues, please do let me know if
you notice any new issues after the maintenance is complete.