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[Recurring] Optimize k8s cluster resource usage #12

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mattjmcnaughton opened this Issue Nov 23, 2018 · 0 comments

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mattjmcnaughton commented Nov 23, 2018

Note: As a recurring issue, this issue should always be open.

TODO(mattjmcnaughton) Determine how to track/organize recurring issues.

Issue
At a regular cadence, I want to ensure that my k8s cluster is making optimal usage of resources. In other words, I want to be paying as little as possible.

Impl
The first time I do this, I should create a check list. Possible ideas include...

  • Pods which can have their resource limits decreased (and as a result, decrease in the number of workers)
  • PVCs which can be decreased.
  • Convert EC2 instances from on-demand to spot or reserved.
  • Decrease EBS volumes mounted to nodes.
  • Merge services with individual ELBs onto shared ingress
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