Support `kubectl config get-contexts` JSON output

[hclihn]

trafficstars

What would you like to be added: Please add support for config get-contexts JSON output.

Why is this needed: Currently, config get-contexts can only output column-oriented format or the name field (using -o=name). However, when the cluster/context name contains space(s) which is true for our company's implementation, it makes the parsing of the output very challenging. If the command output can support a JSON format, then it's relatively easier to use existing tools to parse it, regardless if the cluster/context name contains space(s) or not.

[ardaguclu]

Sounds to me a reasonable ask.

[ah8ad3]

I'll take a look at this.

[ardaguclu]

@ah8ad3 before working on it, I think it would be better to wait bug scrub to triage it first.

[mpuckett159]

/triage accepted

[TessaIO]

/assign

[karan2704]

Is this still being worked on? I want to create a PR for this.

[sftim]

/retitle Support kubectl config get-contexts JSON output

[tchap]

I will finish this.

/assign

[tchap]

This was discussed during SIG-CLI on 5/28, and based on further investigation we agreed that the functionality proposed is already available through:

kubectl config view -o jsonpath='{.contexts}'

[ardaguclu]

We are not planning to add this functionality for now /close

[k8s-ci-robot]

@ardaguclu: Closing this issue.

In response to this:

We are not planning to add this functionality for now /close

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