From Releng checkin on 2015-07-21, we should upgrade the puppet master on Beta-Cluster-Infrastructure to Trusty and a standalone instance. The current one has performances issues and collocated with the salt master.
Puppet master: time to migrate to Trusty!
Save cherry picked patches
Delete instance, recreate one with same name (integration-puppetmaster), being bigger and running Trusty
Run puppet on all instances via salt to request new cert
Wait for puppet autosigner to kick in