[feature request] ResourceDistribution point at secret

[kfox1111]

What would you like to be added:

The ability for a ResourceDistribution to point at an existing secret to sync to other namespaces

Why is this needed:
Some tools such as cert-manager create the secret that needs to be synced to other namespaces. It can not easily be created in the ResourceDistribution object itself.

[furykerry]

can you describe the use case in more detail ? what kind of secrets and why it should be sync to other namespaces? If ResourceDistribution can reference an existing secret, it will be a potential security problem. Kruise cannot tell whether the user has the privilege to read the existing secret, sync the secret to a namespace of an un-authorized user is dangerous.

[kfox1111]

https://cert-manager.io/docs/devops-tips/syncing-secrets-across-namespaces/ has the use case and a list of other tools doing the same thing.