Support for system-reserved pid setting

[alihassan-waters]

What I'd like:
Support for setting the pid resource reservation.

This is currently supported in Kubernetes here: https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/#system-reserved

Kubelet Flag: --system-reserved=[cpu=100m][,][memory=100Mi][,][ephemeral-storage=1Gi][,][pid=1000]

Any alternatives you've considered:
none applicable

[ginglis13]

Hi @alihassan-waters, thanks for the issue. Can you provide more details on your use case for this setting?

[alihassan-waters]

Hi @alihassan-waters, thanks for the issue. Can you provide more details on your use case for this setting?

We have this setting in our kubernetes cluster without bottlerocket and we require to match the current settings to keep things consistent on the cluster nodes. It is to make sure the system has enough pids available to it to do what it needs to do without it being compromised.

[magno-cb]

Hi, following on this issue, I'm also looking for bottlerock to support reserved cpu list parameter.

https://kubernetes.io/docs/tasks/administer-cluster/reserve-compute-resources/#explicitly-reserved-cpu-list

[koooosh]

Hey @magno-cb , thanks for the callout! As it turns out, Bottlerocket has had this reserved cpu list parameter setting since version 1.21.0 under the name settings.kubernetes.reserved-cpus.

However, it looks like our website has not been updated with the docs for this setting -- this should be fixed soon with bottlerocket-os/bottlerocket-project-website#541 .