Added custom overrides for kube-rbac-proxy-self.

[ahysing]

Description

I have discovered that kube-state-metrics tends tends to experience CPU throttling in my kubernetes cluster. I want to get CPU throttling down to a decent level below 10%. Right now I don't have a way to change this.

This is a picture from my cluster. The sidecar called kube-rbac-proxy-self experiences a CPU throttling of 19%. This gives bad performance

I use thanos along prometheus.

Type of change

What type of changes does your code introduce to the kube-prometheus? Put an x in the box that apply.

• CHANGE (fix or feature that would cause existing functionality to not work as expected)
• FEATURE (non-breaking change which adds functionality)
• BUGFIX (non-breaking change which fixes an issue)
• ENHANCEMENT (non-breaking change which improves existing functionality)
• NONE (if none of the other choices apply. Example, tooling, build system, CI, docs, etc.)

Changelog entry

By looking at existing code I am extending kube-rbac-proxy-self with the same set of overrides as a similar sidecar container kube-rbac-proxy-main. This way I get a pitch point where i can add more CPU resources to the container.

Added configurable default values for sidecar container kube-rbac-proxy-self in deployment kube-statate-metrics.

Test and Verification

Edit the file called examples/kustomize.jsonnet. Add the following block at line 7.

      kubeStateMetrics+: {
        kubeRbacProxySelf+: {
          resources: {
            limits: { cpu: '120m', memory: '40Mi' },
            requests: { cpu: '60m', memory: '20Mi' },
          }
        }
      }

Run the install procedures from README.md followed by the generate procedure from github actions.

jb install github.com/ahysing/kube-prometheus/jsonnet/kube-prometheus@custom-requests-kube-rbacc-proxy-self
make --always-make generate validate && git diff --exit-code

Make sure that the file manifests/kubeStateMetrics-deployment.yaml is changed properly with the new limits you expected.

[ahysing]

Please concider my change.

I need this.

[philipgough]

lgtm

[ahysing]

thanks PhilipGough . this helps me a lot.