[EtcdAPI][Feature]: Support set version?

[liangyuanpeng]

Description about the feature

kubernetes 1.31(master) will begin to require a certain version of etcd to use some feature, and xline has its own version number, which means that if the xline's Maintenance.Status request returns a version number that does not correspond to etcd, it will never run in this case.

https://github.com/kubernetes/kubernetes/blob/8cf93c8d83df3a206ab4abe2ed2ead7a173bd63e/staging/src/k8s.io/apiserver/pkg/storage/feature/feature_support_checker.go#L157-L172

cilium also have the same problem.

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[CrystalAnalyst]

Thanks for the considerate suggesion!
Since our project already supports the RequestWatchProgress function, indicating that Xline already has the necessary compatibility for systems such as Kubernetes that rely on this function.
This means that if Xline is used as an etcd replacement, it can meet the requirements for Kubernetes ,
compatible with etcd 3.5.13(and above) without the need for specific compatibility.

[liangyuanpeng]

Hi @CrystalAnalyst , sorry for not clear it, kubernetes/ cilium will check the version with grpc api Maintenance.Status.

for example:

1. kubernetes/cilium get the version 3.5 with grpc api Maintenance.Status
2. if version <3.5, exit the program or prompt that the feature is not supported.
   2.1) etcd return 3.5.15, success running
   2.2) xline return 0.6.1, failed running

So this issue is requesting for xline can return the special version from grpc api and not the really xline version (0.6.1), RequestWatchProgress is not the point.

Remind me if i have not clear it.

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[liangyuanpeng]

no stale

[github-actions]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 14 days.

[github-actions]

This issue was closed because it has been stalled for 14 days with no activity.