Since I will be spending my time soon working most directly on things other than Cloud Services goals I have attempted to persist my understanding of shared/best practice to a wiki page.  This is less a declaration than it is an attempt to formalize current expectations as I understand them.  I know this is imperfect but the lack of a page like this I think has been making life difficult for awhile and we gotta start somewhere.  This is mostly as-is but there are sprinklings of hope-to-be with links to tasks where changes are in progress or being tracked.

https://wikitech.wikimedia.org/wiki/Portal:Cloud_VPS/Admin/NetworkandPolicy

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Chase Pettet
chasemp on phabricator and IRC