grafana for Multiple instances of the same host

[lastincisor]

What problem does this PR solve?

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.18% ⚠️

Comparison is base (2446193) 55.91% compared to head (147be37) 55.72%.

❗ Current head 147be37 differs from pull request most recent head 842d70b. Consider uploading reports for the commit 842d70b to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2277      +/-   ##
==========================================
- Coverage   55.91%   55.72%   -0.18%     
==========================================
  Files         323      323              
  Lines       34095    34095              
==========================================
- Hits        19061    18998      -63     
- Misses      12758    12823      +65     
+ Partials     2276     2274       -2     

Flag	Coverage Δ
cluster	44.73% <100.00%> (-0.21%)	⬇️
dm	25.66% <100.00%> (-0.05%)	⬇️
playground	15.69% <0.00%> (ø)
tiup	15.88% <0.00%> (-0.02%)	⬇️
unittest	22.60% <0.00%> (ø)

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

Files Changed	Coverage Δ
pkg/cluster/spec/grafana.go	63.68% <100.00%> (ø)

... and 8 files with indirect coverage changes

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-09-15 07:24:07.126989047 +0000 UTC m=+243013.094577099: ☑️ agreed by kaaaaaaang.

[kaaaaaaang]

/merge

[kaaaaaaang]

/lgtm

[kaaaaaaang]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: kaaaaaaang

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• OWNERS [kaaaaaaang]

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