koordlet: query kubelet config via HTTP API

[eahydra]

Signed-off-by: Joseph joseph.t.lee@outlook.com

Ⅰ. Describe what this PR does

Currently, the configuration of the kubelet is obtained by parsing the kubelet command-line args and reusing the kubelet code, but this method currently has the problem of concurrent read and write race condition(issue #730 ). Now this PR uses the /configz API provided by kubelet to query the configuration. The disadvantage is that users can disable this API, which may bring some compatibility issues.

Ⅱ. Does this pull request fix one issue?

fix #730

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

V. Checklist

• I have written necessary docs and comments
• I have added necessary unit tests and integration tests
• All checks passed in make test

[codecov]

Codecov Report

Base: 68.46% // Head: 68.15% // Decreases project coverage by -0.30% ⚠️

Coverage data is based on head (282e08c) compared to base (885cfda).
Patch coverage: 41.49% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #776      +/-   ##
==========================================
- Coverage   68.46%   68.15%   -0.31%     
==========================================
  Files         209      210       +1     
  Lines       24062    24084      +22     
==========================================
- Hits        16474    16415      -59     
- Misses       6444     6528      +84     
+ Partials     1144     1141       -3     

Flag	Coverage Δ
unittests	68.15% <41.49%> (-0.31%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...duler/plugins/elasticquota/quota_overuse_revoke.go	70.58% <0.00%> (-9.66%)	⬇️
pkg/scheduler/frameworkext/controllers.go	14.28% <14.28%> (ø)
pkg/scheduler/frameworkext/framework_extender.go	60.16% <16.66%> (-2.34%)	⬇️
pkg/scheduler/plugins/coscheduling/coscheduling.go	62.20% <23.80%> (-9.73%)	⬇️
pkg/koordlet/statesinformer/kubelet_stub.go	52.00% <40.00%> (-10.50%)	⬇️
...dlet/statesinformer/states_noderesourcetopology.go	63.98% <47.05%> (-1.16%)	⬇️
pkg/scheduler/plugins/elasticquota/controller.go	51.11% <60.00%> (-9.81%)	⬇️
pkg/scheduler/plugins/elasticquota/plugin.go	69.86% <66.66%> (-3.79%)	⬇️
...eduler/plugins/coscheduling/controller/podgroup.go	74.14% <77.77%> (-0.23%)	⬇️
pkg/util/kubelet/kubelet.go	56.28% <86.66%> (-2.25%)	⬇️
... and 7 more

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[hormes]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hormes

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