implement preserveResourcesOnDeletion to support migration rollback

[a7i]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Covers function implementation of #5577

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:
I am open to implementing e2e tests but holding off per @XiShanYongYe-Chang 's recommendation

Does this PR introduce a user-facing change?:

Resource deletion policy to support migration rollback

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

Attention: Patch coverage is 41.50943% with 62 lines in your changes missing coverage. Please review.

Project coverage is 38.40%. Comparing base (268e672) to head (68c0104).

Files with missing lines	Patch %	Lines
pkg/controllers/execution/execution_controller.go	51.66%	20 Missing and 9 partials ⚠️
pkg/detector/detector.go	0.00%	17 Missing ⚠️
pkg/controllers/binding/common.go	27.27%	8 Missing ⚠️
pkg/util/helper/work.go	0.00%	2 Missing ⚠️
pkg/controllers/mcs/service_export_controller.go	0.00%	1 Missing ⚠️
...clusterservice/endpointslice_collect_controller.go	0.00%	1 Missing ⚠️
...lusterservice/endpointslice_dispatch_controller.go	0.00%	0 Missing and 1 partial ⚠️
.../controllers/multiclusterservice/mcs_controller.go	0.00%	0 Missing and 1 partial ⚠️
...controllers/namespace/namespace_sync_controller.go	0.00%	0 Missing and 1 partial ⚠️
...controllers/unifiedauth/unified_auth_controller.go	0.00%	0 Missing and 1 partial ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5597      +/-   ##
==========================================
+ Coverage   38.25%   38.40%   +0.14%     
==========================================
  Files         649      650       +1     
  Lines       45133    45207      +74     
==========================================
+ Hits        17267    17360      +93     
+ Misses      26556    26518      -38     
- Partials     1310     1329      +19     

Flag	Coverage Δ
unittests	38.40% <41.50%> (+0.14%)	⬆️

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[XiShanYongYe-Chang]

Thanks a lot
/assign

[chaosi-zju]

Elegant implementation, learned!

[RainbowMango]

Nice!

[XiShanYongYe-Chang]

Hi @a7i, in addition to clearing labels and annotations, the current pr should be a complete pr. Can we clear labels in a separate pr? (This means that we can advance the integration of the current pr first, and we need to resolve the conflict.) How do you think?

[a7i]

Hi @a7i, in addition to clearing labels and annotations, the current pr should be a complete pr. Can we clear labels in a separate pr? (This means that we can advance the integration of the current pr first, and we need to resolve the conflict.) How do you think?

Hi @XiShanYongYe-Chang 👋🏼 I pushed up a separate commit, let me know if you want it reverted or squashed. I still don't like that labels/annotations are not going to be easily maintainable but I can clean it up in a follow-up PR. Let me know what you think

[XiShanYongYe-Chang]

I think we can modify this first, and then optimize label and annotation management in the next pr.
cc @RainbowMango

[XiShanYongYe-Chang]

Thanks for your quick response!
/lgtm
/assign @RainbowMango

[RainbowMango]

I will look at it this week. Thanks.

[RainbowMango]

/approve
Looks great!

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: grosser, RainbowMango

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