Karmada Operator: Add Leader Elect to Manifests

[RuliXu]

What type of PR is this?

/kind feature

What this PR does / why we need it:

Karmada components have the ability of leader elect, but not yet used in manifests of karmada operator.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[karmada-bot]

Welcome @RuliXu! It looks like this is your first PR to karmada-io/karmada 🎉

[RuliXu]

/assign @calvin0327

[calvin0327]

/assign

[calvin0327]

@RuliXu Thanks for your first pr, It looks good.
/lgtm

@Poor12 @lonelyCZ /cc

[RainbowMango]

Thanks @RuliXu for doing this.

@calvin0327 Do we have any E2E tests covering the operator functionality?

[codecov-commenter]

Codecov Report

Merging #3733 (c79ed77) into master (626564d) will decrease coverage by 0.01%.
The diff coverage is n/a.

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@@            Coverage Diff             @@
##           master    #3733      +/-   ##
==========================================
- Coverage   55.69%   55.68%   -0.01%     
==========================================
  Files         222      222              
  Lines       21195    21195              
==========================================
- Hits        11804    11803       -1     
- Misses       8764     8765       +1     
  Partials      627      627              

Flag	Coverage Δ
unittests	55.68% <ø> (-0.01%)	⬇️

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see 1 file with indirect coverage changes

[calvin0327]

Thanks @RuliXu for doing this.

@calvin0327 Do we have any E2E tests covering the operator functionality?

Yes, we don't have any e2e yet.
At this stage, I think we need to add e2e to cover the whole install, update, and uninstall process.

[RainbowMango]

/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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• operator/OWNERS [RainbowMango]

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[RainbowMango]

At this stage, I think we need to add e2e to cover the whole install, update, and uninstall process.

Double agree, should we open an issue to track this?

[calvin0327]

At this stage, I think we need to add e2e to cover the whole install, update, and uninstall process.

Double agree, should we open an issue to track this?

Ok, that's sure.