Support predownload image in ads

[ABNER-1]

Ⅰ. Describe what this PR does

Support predownload image in ads

Ⅱ. Does this pull request fix one issue?

fixes #1048

Ⅲ. Describe how to verify it

create ads and change images of it, then an imagepulljob will be created. If every pods have beed updated, the imagepulljob will be deleted.

Ⅳ. Special notes for reviews

I am not sure whether it is neccessary to limit the daemonset size. I am so sorry that I did not found how to make the predownload image order correspond to the order of daemonset update.

[FillZpp]

@ABNER-1 The daemonset UT failed, could you fix it?

[ABNER-1]

@ABNER-1 The daemonset UT failed, could you fix it?

The unittest init struct is complex and different from cloneset. I am reading the implements. I will fix it when I think I can get it.

[ABNER-1]

Looks like these two pull_request test(other) failed due to statefulset controller. However, I have no code changes about it. @FillZpp

[codecov-commenter]

Codecov Report

Merging #1057 (cf1c5c6) into master (4263a74) will increase coverage by 0.61%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #1057      +/-   ##
==========================================
+ Coverage   49.30%   49.92%   +0.61%     
==========================================
  Files         125      127       +2     
  Lines       12355    17961    +5606     
==========================================
+ Hits         6092     8967    +2875     
- Misses       5322     8005    +2683     
- Partials      941      989      +48     

Flag	Coverage Δ
unittests	49.92% <0.00%> (+0.61%)	:arrow_up:

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

Impacted Files	Coverage Δ
pkg/controller/daemonset/daemonset_controller.go	40.96% <0.00%> (-1.73%)	:arrow_down:
...ontroller/daemonset/daemonset_predownload_image.go	0.00% <0.00%> (ø)
...oller/statefulset/statefulset_predownload_image.go	0.00% <ø> (ø)
...ontroller/advancedcronjob/advancedcronjob_utils.go	75.00% <0.00%> (-25.00%)	:arrow_down:
pkg/util/cache.go	53.84% <0.00%> (-6.16%)	:arrow_down:
...b/validating/broadcastjob_create_update_handler.go	42.02% <0.00%> (-3.98%)	:arrow_down:
pkg/util/lock.go	75.00% <0.00%> (-2.78%)	:arrow_down:
...ontroller/podreadiness/pod_readiness_controller.go	28.78% <0.00%> (-2.59%)	:arrow_down:
pkg/controller/uniteddeployment/subset_control.go	70.27% <0.00%> (-2.57%)	:arrow_down:
...g/webhook/pod/validating/pod_unavailable_budget.go	61.79% <0.00%> (-2.39%)	:arrow_down:
... and 119 more

:mega: We’re building smart automated test selection to slash your CI/CD build times. Learn more

[furykerry]

/lgtm

[FillZpp]

/approve

[kruise-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: FillZpp

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