service: add Kubernetes service support

[yangsoon]

Kubernetes (https://kubernetes.io/docs/home/) is an open source container orchestration engine. However, for end users, you can also consider Kubernetes as a configuration center. For example, creating a Pod resource is akin to inserting a configuration into the storage of Kubernetes.

Here is an example of how Kubernetes (k8s) can be integrated with OpenDAL

1. read a k8s object just same as executing the kubectl get pod testA command.

op.read(pod.get_path())

2. write a k8s object just same as executing the kubectl apply -f pod.yaml command.

op.write(pod.get_path(), pod)

3. delete a k8s object just like executing the kubectl delete pod test

op.delete(pod.get_path())

4. stat will return the metadata of k8s object

Last year, I implemented a tool https://github.com/yangsoon/kufu based on Rust that maps k8s (Kubernetes) objects to the local file system. In essence, it connects the file system's API to the k8s API. Therefore, I believe it is feasible to connect k8s to OpenDAL.

1. kube rust client https://github.com/kube-rs/kube

[yangsoon]

If there are no problems with adding this service, maybe can assign to me. cc @Xuanwo @Zheaoli

[nayihz]

No offense. Is it really worth doing this? Does anybody really read/write k8s through opendal instead k8s client?

[yangsoon]

No offense. Is it really worth doing this? Does anybody really read/write k8s through opendal instead k8s client?

I strongly agree with your suggestion, so I also want to see what others think.

[Xuanwo]

Is it really worth doing this?

From my perspective, I don't consider whether it's worth it or not.

Instead, I focus on whether there are contributors interested in implementing and maintaining it. All services in OpenDAL are optional, and we will timely remove any that are poorly maintained.

As long as this service can be built, tested, and doesn't hinder our release process, I'm happy to integrate it.

So, if @yangsoon want to implement this, please feel free to get start.

[yangsoon]

Is it really worth doing this?

From my perspective, I don't consider whether it's worth it or not.

Instead, I focus on whether there are contributors interested in implementing and maintaining it. All services in OpenDAL are optional, and we will timely remove any that are poorly maintained.

As long as this service can be built, tested, and doesn't hinder our release process, I'm happy to integrate it.

So, if @yangsoon want to implement this, please feel free to get start.

thanks，i will start as soon as possible

[Xuanwo]

No action required at this time, so I’m closing this for now. Please feel free to reopen it if you believe further work is needed.