kubectl kustomize versioning

[nicks]

Expected behavior:

kubectl kustomize version

should print information about the version of Kustomize templates that kubectl kustomize accepts

Actual behavior

kubectl kustomize version

doesn't work.

The kubectl command only accepts kustomize version 2+, but the main kustomize repo is on version 3+. This has caused some confusion for our users, because they thought that they should be using the "new way" of preferring kubectl kustomize over kustomize

Obviously, we could work around this by keeping a map from kubectl versions to compatible kustomize versions, but it would be nice if we could get this info from kubectl kustomize

Relatedly, what's the plan for upgrading kubectl to kustomize 3?

[dlipovetsky]

/cc @kubernetes/sig-cli-feature-requests

[dlipovetsky]

Regardless of the future of kubectl kustomize, it would help to know which kustomize version is used.

[ricochet]

Please close and reopen this on kustomize.

[nicks]

great filed as kubernetes-sigs/kustomize#2142.

though i think the change has to happen in this repo, since it's about what subcommands are registered? https://github.com/kubernetes/kubectl/blob/master/pkg/cmd/kustomize/kustomize.go#L59

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[seans3]

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[seans3]

/sig cli
/area kubectl

[seans3]

/assign

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[greenstatic]

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[eddiezane]

/priority important-soon
/assign @pwittrock

[pwittrock]

FYI: updating the FAQ with this:

kubernetes-sigs/kustomize#2749

TLDR: This is blocked on either moving kubectl into its own repo, or changing its dependencies. ETA k8s ~1.20.

The adoption of go modules in the kubernetes/kubernetes repo broke the update process for kustomize.
This is due to the kustomize libraries depending on the kubernetes apimachinery libraries, which are
published out of the kubernetes staging directory.

2 pieces of work are underway which will allow kustomize to be updated in kubectl:

• migrating kubectl out of kubernetes/kubernetes (expected Kubernetes ~1.20)
• migrating kustomize off of the apimachinery libraries (expected Kuberntes ~1.20)
  • 2506

Once either of these issues is resolved we will then update kubectl with the latest kustomize version.

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[pierluigilenoci]

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[seans3]

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[MaisaDaoud]

kubectl apply -k doesnt work with kustomization.yaml with generators and transformers. Any help

[MaisaDaoud]

update: the built in kustomize doesn't work with generators and transfomers plugins (as per mentioned in one of the open questions). As I was trying it within azure environment, I reckon the best place to install kustomize and set the path in azure is https://www.kubeflow.org/docs/other-guides/kustomize/ ... solved my issue. thanks

[KrisJohnstone]

RE: Version Upgrade for those whom stumble across this:
kubernetes/kubernetes#98946

[eddiezane]

Looks like kubectl kustomize --version didn't make it in with the 1.21 changes.

@natasha41575 is this something y'all can take on?

[natasha41575]

will discuss with @monopole

[eddiezane]

Let's track this at kubernetes-sigs/kustomize#1424

/close