Dashboard: Add support for Kubernetes v1.16

[LQBing]

Environment

Installation method: kubectl 
Kubernetes version: v1.16.0
Dashboard version: kubernetesui/dashboard:v2.0.0-beta4
Operating system: ubuntu 18.04.1
Node.js version ('node --version' output): n/a
Go version ('go version' output): n/a

Steps to reproduce

Choose Workloads -> Deployments -> a deployment, click 'edit'.

Observed result

The deployment yaml content not load, and I find there is a 404 request in the browser dev panel.

Expected result

It need display deployment resource yaml content.

Comments

[anshulahuja98]

Can you perhaps also share the console output as well?

[RnkeZ]

Hi, I have the same problem here is the console output.

[anshulahuja98]

I replicated your dev environment.
The issue seems to be with using Kubernetes version: v1.16.0
That's a fairly recent release, not sure if we should worry about that version as of now.
The current dashboard release v2.0.0-beta4 only claims to support till 1.15 k8s.
And this feature works fine on 1.15

/priority important-soon

[RnkeZ]

Tkanks for the info.
Do we have ETA on v1.16.0 support?

[anshulahuja98]

I cannot comment on that
@maciaszczykm @floreks can perhaps give better info on this.

[floreks]

It all depends on client-go updating their code to support v1.16.

[zerkms]

~Client go DOES support v1.16~

Right, I confused it with something else, my apologies.

[floreks]

@zerkms I don't see any official release that would support v1.16 on their github page: https://github.com/kubernetes/client-go#compatibility-matrix

[LQBing]

@anshulahuja98 here is the console output and kubernetes-dashboard pod log.

[floreks]

We've established already that it is related to some changes in K8S v1.16. We have to wait for the official release of client-go to support it. Right now we do not.

[discostur]

I think this is because of the API deprecation:

https://kubernetes.io/blog/2019/07/18/api-deprecations-in-1-16/

[liggitt]

We've established already that it is related to some changes in K8S v1.16. We have to wait for the official release of client-go to support it. Right now we do not.

Just to note, the replacement APIs (apps/v1) have been available since v1.9, and any client-go version since then can be used to access them. You don't need to wait for the v1.16 version of client-go, though that is available as well at https://github.com/kubernetes/client-go/tree/kubernetes-1.16.0