krypton.eqiad.wmnet is on jessie
it uses role(webserver_misc_apps)
and is hosting the following tools:
- profile::wikimania_scholarships - https://scholarships.wikimedia.org/
- profile::iegreview - https://iegreview.wikimedia.org
- profile::racktables - https://racktables.wikimedia.org
~~ profile::grafana::production - grafana.wikimedia.org~~ (grafana is not on this host anymore meanwhile)
upgrade it to stretch. check what blockers there might be for that.