adding helm charts to install karmada metrics adapter

[sbdtu5498]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Adds helm charts to install karmada metrics adapter

Which issue(s) this PR fixes:
Fixes #3626 helm charts

Does this PR introduce a user-facing change?:

NONE

[karmada-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[codecov-commenter]

Codecov Report

Merging #4004 (d71e88e) into master (fd162b7) will increase coverage by 0.22%.
Report is 2 commits behind head on master.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##           master    #4004      +/-   ##
==========================================
+ Coverage   54.48%   54.71%   +0.22%     
==========================================
  Files         232      232              
  Lines       22685    22828     +143     
==========================================
+ Hits        12360    12490     +130     
- Misses       9648     9659      +11     
- Partials      677      679       +2     

Flag	Coverage Δ
unittests	54.71% <ø> (+0.22%)	⬆️

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see 4 files with indirect coverage changes

[jwcesign]

Hi, @sbdtu5498 Can u help fix the chart lint first?

[sbdtu5498]

Sure I will. Let me take a look.

[chaosi-zju]

Hello, thank you for your important commit!

While, we are trying to eliminate insecureSkipTLSVerify=true in karmada, detail in #4024

Can you refer to karmada-metrics-adapter-apiservice.yaml and #4033 to remove insecureSkipTLSVerify?

Besides, could you please add steps of "how to verify your code" in this PR?

[calvin0327]

@sbdtu5498 Do you have a test for this? example: helm template or helm install xxx --dry-run

[jwcesign]

Hi, @sbdtu5498 Any updates?

[jwcesign]

Thanks for your contribution @sbdtu5498 , we need to release this feature at the end of this month.
I modified based on yours. let‘s follow this in #4303

[RainbowMango]

/close

[karmada-bot]

@RainbowMango: Closed this PR.

In response to this:

/close

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