Add PowerShell friendly CLI

[soroshsabz]

ITNOA

Description of the new feature/enhancement

As you can know PowerShell is great Scripting Language for Automation and Administration of system. and it is built for Object-oriented scripting.

Kubernetes API, on the other hand, is also completely object-oriented, so I think it is very good for kubectl to get compatible with PowerShell and make native PowerShell Cmdlet.

In this area we can see below command instead of Linux legacy CLI style like kubectl get node

• Get-Node

And all of them is object and we can work with them in OOP area with modern and great and consistent experience in PowerShell World.

Proposed technical implementation details (optional)

I think PowerShell has many guideline and documentation about writing and designing great Cmdlet and modules that winget-cli teams have to follow it for example

Windows PowerShell Cmdlet Concepts
Writing a Windows PowerShell Module
PowerShell Script Module Design: Building Tools to Automate the Process
Powershell: DSL design patterns

VMWare PowerCLI is an example for similar large scale software that use PowerShell for CLI.

[k8s-ci-robot]

@soroshsabz: This issue is currently awaiting triage.

SIG CLI takes a lead on issue triage for this repo, but any Kubernetes member can accept issues by applying the triage/accepted label.

The triage/accepted label can be added by org members by writing /triage accepted in a comment.

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/test-infra repository.

[soroshsabz]

I found a good work for doing this in Native Commands in PowerShell – A New Approach

As you can see in above, author of blog post can build many of kubectl commands in PowerShell with very clean approach

https://www.powershellgallery.com/packages/Microsoft.PowerShell.KubeCtl/0.0.3

Announcing PowerShell Crescendo

[eddiezane]

All of the autocomplete functionality (and cli bits) for kubectl is provided through the Go library Cobra.

It doesn't look like this is something Cobra provides yet https://github.com/spf13/cobra/blob/master/shell_completions.md#powershell-completions - or would it need to be separate entirely?

QOL improvements for Powershell users are certainly something we'd consider merging if a PR surfaced.

Might be worth tagging @JamesWTruher.

cc @marckhouzam

[marckhouzam]

IIUC this is something different than command completion. I'm not very familiar with PowerShell but it may be an improvement than could possibly be generic enough to be done on Cobra so that it would be available to many clis. Having something working in kubectl or another project would be a good proof that such a feature works well.

Someone would need to step up and do the work however.

[soroshsabz]

@eddiezane It is very beyond than just auto complete, it is about new culture of CLI.

[eddiezane]

Thanks for explaining!

I'd recommend opening this in Cobra if you want to get the ball rolling.

/close

[k8s-ci-robot]

@eddiezane: Closing this issue.

In response to this:

Thanks for explaining!

I'd recommend opening this in Cobra if you want to get the ball rolling.

/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/test-infra repository.