Provide support for watch multiple namespaces

[ryu-sato]

Hi team,

I would like to enable operator to watch multiple specific namespaces, in addition to the existing capability of watching a single namespace or all namespaces in cluster.

Currently, the operator cannot watch multiple namespaces because it uses the "Namespace" option when instantiating a manager. This option is now deprecated, and you should switch to using the "Cache" option instead, which supports watching multiple namespaces.

Reference: https://github.com/kubernetes-sigs/controller-runtime/releases/tag/v0.15.0

manager.Options.Namespace has been deprecated in favor of manager.Options.Cache.Namespaces.

Therefore, I propose updating the operator to instantiate the manager with the "Cache" option.

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This issue is being marked stale because it has been open for 60 days with no activity. Please comment if this issue is still affecting you. If there is no change, this issue will be closed in 30 days.

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This issue was closed because it became stale and did not receive further updates. If the issue is still affecting you, please re-open it, or file a fresh Issue with updated information.