fix fillHostArchOrOS not working when using Identity

[srstack]

What problem does this PR solve?

close #1913
fix fillHostArchOrOS not working when using Identity

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

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• AstroProfundis

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[codecov-commenter]

Codecov Report

Merging #1914 (355ad3a) into master (16c5f6b) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #1914      +/-   ##
==========================================
+ Coverage   52.51%   52.53%   +0.02%     
==========================================
  Files         307      307              
  Lines       35456    35454       -2     
==========================================
+ Hits        18618    18625       +7     
+ Misses      14641    14634       -7     
+ Partials     2197     2195       -2     

Flag	Coverage Δ
cluster	41.11% <100.00%> (+0.03%)	⬆️
dm	24.45% <100.00%> (-0.01%)	⬇️
playground	12.91% <ø> (ø)
tiup	14.45% <ø> (ø)
unittest	21.04% <0.00%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
pkg/cluster/manager/manager.go	72.56% <100.00%> (-0.33%)	⬇️
pkg/cluster/api/pdapi.go	59.05% <0.00%> (+1.58%)	⬆️

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[AstroProfundis]

/hold

we'll need to do some more tests against this issue

[AstroProfundis]

/unhold

[AstroProfundis]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 355ad3a