Later today (starting in a few hours around 18:00 UTC) we'll be rearranging the puppetmaster setup for most cloud VMs[0]. No tools or services (other than puppet) should be affected, but some of you might get grumpy emails about broken puppet runs during the transition, which I encourage you to ignore. If you're planning to update the puppet configuration of your VMs, I encourage you to postpone that work until after our migration.
[0] full context at https://phabricator.wikimedia.org/T171188