PoC: k8s client usage for UWM down

[typeid]

https://issues.redhat.com/browse/OSD-23312

This PR showcases how CAD could use kube api with an example implementation of the remediation to https://issues.redhat.com/browse/OCPBUGS-33863.

The implementation is hidden behind a CAD_EXPERIMENTAL_ENABLED flag that we will enable on staging after enabling kube-api access in https://issues.redhat.com/browse/OSD-23311.

[typeid]

/hold this is an untested draft.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 18.51852% with 22 lines in your changes are missing coverage. Please review.

Project coverage is 37.85%. Comparing base (61b1526) to head (b405fa7). Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #279      +/-   ##
==========================================
- Coverage   38.93%   37.85%   -1.08%     
==========================================
  Files          17       19       +2     
  Lines        1500     1556      +56     
==========================================
+ Hits          584      589       +5     
- Misses        877      928      +51     
  Partials       39       39              

Files	Coverage Δ
...rrorbudgetburn/clustermonitoringerrorbudgetburn.go	18.51% <18.51%> (ø)

... and 2 files with indirect coverage changes

[typeid]

I was able to test this already thanks to backplane-cli using my ocm-token.

[typeid]

Waiting for this backplane api change, as we need to be able to pass our ocm connection for the backplane kube-api auth

[typeid]

/unhold

backplane-cli dependency PR merged. We're good to move ahead with this PR.

[typeid]

/hold

[typeid]

/unhold

Ready to merge! :)

[zmird-r]

Looks good! /lgtm

[zmird-r]

/lgtm

[openshift-ci[bot]]

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