koordlet: report system resource usage in node metric

[zwzhang0107]

Ⅰ. Describe what this PR does

Update system usage in node metric crd.
Add system usage collector in metric advisor. Read latest usage of node and pods from share state in context and calculate system usage, then saves in metric cache.
Although this can be calculate by node-sum(pod) from metric cache, but the time series are unaligned across different type of metric, which makes it hard to aggregate.

Ⅱ. Does this pull request fix one issue?

#991

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: 73.73% and project coverage change: +0.04% 🎉

Comparison is base (fe1ffd1) 64.78% compared to head (38634f4) 64.82%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1538      +/-   ##
==========================================
+ Coverage   64.78%   64.82%   +0.04%     
==========================================
  Files         347      348       +1     
  Lines       35376    35592     +216     
==========================================
+ Hits        22917    23072     +155     
- Misses      10780    10825      +45     
- Partials     1679     1695      +16     

Flag	Coverage Δ
unittests	64.82% <73.73%> (+0.04%)	⬆️

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

Files Changed	Coverage Δ
pkg/koordlet/metriccache/metric_types.go	58.13% <ø> (ø)
pkg/util/utils.go	30.39% <60.00%> (+3.21%)	⬆️
...ollectors/sysresource/system_resource_collector.go	67.03% <67.03%> (ø)
.../koordlet/statesinformer/impl/states_nodemetric.go	54.99% <67.14%> (+1.64%)	⬆️
...collectors/noderesource/node_resource_collector.go	67.44% <100.00%> (+2.00%)	⬆️
...r/collectors/podresource/pod_resource_collector.go	63.33% <100.00%> (+1.70%)	⬆️
pkg/koordlet/metricsadvisor/framework/context.go	70.21% <100.00%> (+70.21%)	⬆️
pkg/koordlet/metricsadvisor/metrics_advisor.go	86.56% <100.00%> (+0.20%)	⬆️

... and 2 files with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[saintube]

/lgtm

[FillZpp]

/lgtm

[koordinator-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FillZpp, saintube

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:

• pkg/koordlet/OWNERS [saintube]
• pkg/util/OWNERS [FillZpp]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment