koordlet: Memcg reaper

[chzhj]

Ⅰ. Describe what this PR does

see details
memcg reaper support: #1032
add pod_name tag to pod evict metrics：#1117

Ⅱ. Does this pull request fix one issue?

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

Patch coverage: 94.91% and project coverage change: -0.25 ⚠️

Comparison is base (c77422b) 66.99% compared to head (e9d1986) 66.74%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1118      +/-   ##
==========================================
- Coverage   66.99%   66.74%   -0.25%     
==========================================
  Files         263      267       +4     
  Lines       28978    29319     +341     
==========================================
+ Hits        19413    19569     +156     
- Misses       8201     8363     +162     
- Partials     1364     1387      +23     

Flag	Coverage Δ
unittests	66.74% <94.91%> (-0.25%)	⬇️

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

Impacted Files	Coverage Δ
pkg/koordlet/util/system/system_resource.go	65.62% <ø> (ø)
pkg/koordlet/resmanager/system_config.go	61.76% <66.66%> (+0.74%)	⬆️
pkg/koordlet/metrics/expire_metric.go	96.47% <96.47%> (ø)
pkg/koordlet/metrics/common.go	76.92% <100.00%> (+9.06%)	⬆️
pkg/koordlet/resmanager/cpu_evict.go	74.50% <100.00%> (ø)
pkg/koordlet/resmanager/resmanager.go	55.03% <100.00%> (ø)
pkg/koordlet/util/system/system_file.go	66.66% <100.00%> (+1.04%)	⬆️
pkg/koordlet/util/system/util_test_tool.go	50.29% <100.00%> (+0.29%)	⬆️
pkg/util/config.go	94.85% <100.00%> (+0.02%)	⬆️

... and 9 files with indirect coverage changes

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[zwzhang0107]

/lgtm
/approve

[saintube]

/lgtm
/assign @FillZpp @hormes

[FillZpp]

/approve

[eahydra]

/lgtm
/approve

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: eahydra, FillZpp, zwzhang0107

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• apis/OWNERS [FillZpp]
• config/OWNERS [eahydra]
• pkg/koordlet/OWNERS [zwzhang0107]
• pkg/slo-controller/OWNERS [zwzhang0107]
• pkg/util/OWNERS [FillZpp]

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