kubectl wait doesn't support complex jsonpath

[dhduvall]

trafficstars

What would you like to be added?

The JSONPath extension for kubectl wait added in kubernetes/kubernetes#105776 naively splits the argument to --for into three parts using = as the boundary character. That's pretty straightforward, but then I wanted to do this:

kubectl wait --for jsonpath='{.status.containerStatuses[?(.name=="my-container-name")].ready}=true'

which has five parts using that code. It would be nice to use expressions like this, rather than hard-coding the array index.

Assuming that the RHS doesn't need to be a full JSONPath expression, I think(!) this should be a fairly straightforward change.

Why is this needed?

The documentation doesn't mention any limitations on what kind of JSONPath expressions may be used, so it's surprising that this is not possible. Indeed, the error message you get back—that the format must be —isn't especially helpful, particularly since my expression did in fact match that format. I assume that it's an oversight that the functionality is not available rather than the documentation is incomplete.

[k8s-ci-robot]

@dhduvall: This issue is currently awaiting triage.

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[muyangren2]

/assign

[neolit123]

/sig cli

[sftim]

/transfer kubectl

[k8s-triage-robot]

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/lifecycle stale

[brianpursley]

/remove-lifecycle stale

[k8s-triage-robot]

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/lifecycle stale

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/lifecycle rotten

[k8s-triage-robot]

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/close not-planned

[k8s-ci-robot]

@k8s-triage-robot: Closing this issue, marking it as "Not Planned".

In response to this:

The Kubernetes project currently lacks enough active contributors to adequately respond to all issues and PRs.

This bot triages issues according to the following rules:

• After 90d of inactivity, lifecycle/stale is applied
• After 30d of inactivity since lifecycle/stale was applied, lifecycle/rotten is applied
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/close not-planned

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[andreaskaris]

/reopen

[k8s-ci-robot]

@andreaskaris: You can't reopen an issue/PR unless you authored it or you are a collaborator.

In response to this:

/reopen

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