On Wednesday, March 18, 2015 06:38:13 PM David Gay wrote:
Greetings!
We sort of ran out of time in today's Cloud WG meeting, but I did want to
ask:
What are your thoughts on AMI lifetimes? That is to say, how long should EC2
AMIs exist before they're deleted? A few points to consider:
- AMIs only cost us for storage, so it's not a *huge* cost to maintain a
public AMI - At the same time, there are a lot of AMIs, since we build 2-4
per AWS region per build, and that number is growing - There are 9 regions
now, and we have 2 virtualization types, and 2 volume types, as well (9
regions * 2 * 2 = 36 AMIs per Base image build, 18 for Atomic builds (since
they are only available in HVM format)) - This total number will only grow
larger as we add instance-store AMIs, and so on - This isn't even taking
into account any costs we'll have once we secure a deal with other
providers like HP, Rackspace, and GCE, to maintain public images on their
services
your math is off, there should only be 9 Atomic as we only build it for x86_64
where we build the base for i386 and x86_64 so you have two arches by 2 image
types by 9 regions
Dennis
I propose we have some sort of discussion regarding how long cloud
image
builds should be available on services like AWS. I suspect this will
resolve to having different lifetimes for scratch, test, RC, final, and
maybe other build types.
Any input is appreciated. We can certainly talk about this at next week's
meeting, as well.
-- David
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