pod updates:how to change the fields of spec.containers[].resources.request.cpu(memory)

[thyn]

Is it possible to change request only without pod restart? I know about #24913. But requests seems to me to be safe to change

Example of usage:
We have blue green deployment. When new pods are starting they need few resources. When they switched to production poods need more resources (request only). After deployment all old pods would be active for some time with lower requests. To be sure everything is ok.

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[thyn]

/sig scheduling

[pacoxu]

/sig apps node
for traige
/kind feature

The current updateable fields:

kubernetes/pkg/apis/core/validation/validation.go

Lines 4057 to 4061 in b0bc8ad

	// validate updateable fields:
	// 1. spec.containers[*].image
	// 2. spec.initContainers[*].image
	// 3. spec.activeDeadlineSeconds
	// 4. spec.terminationGracePeriodSeconds

And there is #102884 to fix this, the primary goal is allow to change container resource requests & limits without necessarily restarting the container. Would you check if kubernetes/enhancements#2273 can solve your problem?

[thyn]

Thank you. It's what I need. Is any information about next version which will contain that necessary changes?

[thockin]

kubernetes/enhancements#1287