feat: add a global flag to enable/disable PauseRollout

[jiangpengcheng]

Motivation

Add a pause-rollout flag so that function/sink/source's pods won't be recreated when the controller is upgrade if their generation is not updated

Modifications

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[Copilot]

Pull request overview

Adds a controller-level configuration switch to pause rollouts globally, so Functions/Sinks/Sources won’t trigger pod recreation on controller upgrades when their generation hasn’t increased.

Changes:

• Introduce a new global --pause-rollout CLI flag (and env var PAUSE_ROLLOUT) and plumb it into shared controller config (utils.PauseRollout).
• Update spec.IsPauseRollout() to treat the global flag as an override before checking the per-object annotation.
• Wire the new flag through Kubernetes manifests and the Helm chart values/template.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
utils/configs.go	Adds global PauseRollout config variable.
main.go	Defines --pause-rollout flag and assigns it to utils.PauseRollout.
controllers/spec/common.go	Makes IsPauseRollout honor the global flag before per-object annotation.
config/manager/manager.yaml	Adds --pause-rollout=false to default manager args.
config/default/manager_auth_proxy_patch.yaml	Adds --pause-rollout=false to patched manager args.
charts/function-mesh-operator/values.yaml	Adds controllerManager.pauseRollout Helm value.
charts/function-mesh-operator/templates/controller-manager-deployment.yaml	Passes Helm value as --pause-rollout=... arg.

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