v1beta1 apis proposals

[zmberg]

Ⅰ. Describe what this PR does

Ⅱ. Does this pull request fix one issue?

Ⅲ. Special notes for reviews

[codecov-commenter]

Codecov Report

Attention: 47 lines in your changes are missing coverage. Please review.

Comparison is base (07b7f20) 43.56% compared to head (392268b) 43.40%.

Files	Patch %	Lines
...ok/rollout/validating/validate_v1alphal_rollout.go	0.00%	13 Missing ⚠️
...ollout/validating/rollout_create_update_handler.go	66.66%	5 Missing and 5 partials ⚠️
pkg/trafficrouting/network/gateway/gateway.go	0.00%	5 Missing ⚠️
pkg/util/controller_finder.go	0.00%	5 Missing ⚠️
pkg/controller/rollout/rollout_canary.go	78.57%	2 Missing and 1 partial ⚠️
pkg/controller/rollout/rollout_controller.go	0.00%	3 Missing ⚠️
...controller/batchrelease/batchrelease_controller.go	66.66%	0 Missing and 1 partial ⚠️
...troller/batchrelease/batchrelease_event_handler.go	75.00%	1 Missing ⚠️
...g/controller/batchrelease/batchrelease_executor.go	50.00%	0 Missing and 1 partial ⚠️
pkg/controller/deployment/util/deployment_util.go	80.00%	1 Missing ⚠️
... and 4 more

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #184      +/-   ##
==========================================
- Coverage   43.56%   43.40%   -0.16%     
==========================================
  Files          52       52              
  Lines        5672     5667       -5     
==========================================
- Hits         2471     2460      -11     
- Misses       2778     2783       +5     
- Partials      423      424       +1     

Flag	Coverage Δ
unittests	43.40% <56.88%> (-0.16%)	⬇️

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[furykerry]

replicas already sounds concise and meaningful enough

[furykerry]

TrafficPercent, or just traffic? we can change the type to string so that users can known that it is a percent

[furykerry]

/lgtm

[zmberg]

/approve

[kruise-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: zmberg

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