[cloud] #99: AMI lifetimes (Cloud WG members vote needed)

[Fedora Cloud Trac Tickets]

#99: AMI lifetimes (Cloud WG members vote needed)
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 Reporter:  oddshocks                |      Owner:  oddshocks
     Type:  task                     |     Status:  new
 Priority:  normal                   |  Milestone:  Fedora 22
Component:  Infrastructure &         |   Keywords:  aws, images, vote,
  Release Engineering                |  policy
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 This ticket is to discuss and vote on appropriate lifetimes for Fedora
 Cloud AMIs on our official and community cloud accounts, as discussed on
 the Cloud SIG list this month[1] and in this week's meeting.

 Everyone seems to agree that after a final release, all TC, RC, Alpha,
 Beta, and scratch builds should be deleted. This makes sense because
 there'd be no reason to use any of these AMIs after the final release.
 Still, we need to definitively decide on:

 1. When should TC, RC, Alpha, Beta, and scratch builds be deleted? (1)
 After a final release? (2) Progressively, when a newer build of the same
 type comes out? (3) After a set amount of time, depending on the build
 type? Note that with (2) or (3), we'd need some way to mark each build
 with it's type. I don't think that necessarily happens now.

 2. When should final release AMIs be deleted? (1) After a certain number
 of newer final releases? (2) After a certain amount of time? (3) Never?

 Also note that if we choose any age-based deletion policies, we'd need to
 set up some sort of regular polling of *all* our AMIs on both accounts.

 We want to hold as few AMIs at one time as is reasonable. There are many
 AMIs created for each image build that happens, so our AWS storage charges
 will become quite high if we don't keep our accounts clean. Discuss, and
 then perhaps a vote?

 [1]:
 https://lists.fedoraproject.org/pipermail/cloud/2015-March/005087.html

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