[umbrella] Auto detect whether workload needs to retain replicas in the member cluster through Retain operation

[XiShanYongYe-Chang]

What would you like to be added:

Add the Retain operation for workload resources, when there are relevant HPAs in effect, and keep the number of replicas in the member cluster.

Why is this needed:

When users propagate workload resources (such as Deployment) and HPA to member clusters through Kamada, the HPA controller in the member cluster will work and dynamically adjust the scale subresource of the workload. At the same time, Karmada control plane will also attempt to modify the replicas on the workload in the member cluster. These two operations will conflict. We need to retain the modification of replicas on workload by the HPA controller in the member cluster.

It can be divided into the following tasks.

• [x] Add a specific label to the workload resource to indicate its association with working HPAs. #4078
• [x] Add retain operation in native resourceinterpreter for Deployment resource. #4078
• [x] Set the retain operation more common and not limited to the deployment resource. Ref task discussion: https://github.com/karmada-io/karmada/pull/4078#discussion_r1332455732
• [ ] Add E2E to cover this case.

[chaunceyjiang]

Hi @XiShanYongYe-Chang, has anyone picked up this issue yet? If not, i can pick up this one.

[XiShanYongYe-Chang]

Hi @XiShanYongYe-Chang, has anyone picked up this issue yet? If not, i can pick up this one.

Thanks a lot~, I will assign it to you. /assign @chaunceyjiang

[chaosi-zju]

@chaunceyjiang hello, have you start your task?

I am doing another task (#4057), however, I cannot test my code without the feature Add retain operation in native resourceinterpreter for Deployment resource, then my code may be imcomplete to merge.

so, I wanna if you didn't start this subtask, may I do this subtask?

[chaunceyjiang]

/unassign @chaunceyjiang

/assign @chaosi-zju

[RainbowMango]

ping @XiShanYongYe-Chang to sync the status.

[XiShanYongYe-Chang]

All sub-tasks have been finished. Let me close it. /close

[karmada-bot]

@XiShanYongYe-Chang: Closing this issue.

In response to this:

All sub-tasks have been finished. Let me close it. /close

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.