🌱 config: add metrics configuration for kube-state-metrics

[chrischdi]

What this PR does / why we need it:

This PR adds a custom resource config for kube-state-metrics to scrape metrics via kube-state-metrics from the CAPV resources.

This could be used together with kubernetes-sigs/cluster-api#9390 and the following configuration in tilt-settings.yaml:

deploy_kustomizations:
  kube-state-metrics-custom-resource-capv: ../cluster-api-provider-vsphere/config/metrics

Note: depends on the path to be correct here.

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

[k8s-ci-robot]

@chrischdi: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-provider-vsphere-e2e-main-oldpreset	da4cdff	link	true	/test pull-cluster-api-provider-vsphere-e2e-main-oldpreset

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[codecov]

Codecov Report

Patch coverage has no change and project coverage change: +0.06% 🎉

Comparison is base (f2d4b7d) 50.06% compared to head (0b37814) 50.13%.
Report is 4 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2345      +/-   ##
==========================================
+ Coverage   50.06%   50.13%   +0.06%     
==========================================
  Files          87       87              
  Lines        8041     8041              
==========================================
+ Hits         4026     4031       +5     
+ Misses       3685     3682       -3     
+ Partials      330      328       -2     

see 2 files with indirect coverage changes

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[sbueringer]

Thank you!!

Fine to merge for me as is

/lgtm
/approve

/hold
(up to you)

Would be good to change the omitempty thing in the gentool so that our final configuration won't contain the unnecessary zero values. But definitely fine to merge for me as is

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: b92dc5c9377d65e8ce86d258af5b09d83809138f

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbueringer

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[chrischdi]

Thank you!!

Fine to merge for me as is

/lgtm /approve

/hold (up to you)

Would be good to change the omitempty thing in the gentool so that our final configuration won't contain the unnecessary zero values. But definitely fine to merge for me as is

This omitempty part is not on the gentool side, its the kube-state-metrics config struct itself. But yeah, I agree.

[chrischdi]

/hold cancel

[sbueringer]

This omitempty part is not on the gentool side, its the kube-state-metrics config struct itself. But yeah, I agree.

Ah good info and yeah makes sense.