`kubectl cp` does not support resource/name format

[sanmai-NL]

What would you like to be added?

kubectl cp file.txt default/pod/mypod-0365fce5-b565b9fd9-zjw8h:/tmp/

should work, but it doesn't because of the pod/ resource type in the name.

Why is this needed?

Feature parity, principle of least surprise, consistency, flexibility, suitability for scripting with kubectl get pods -o name. Other subcommands do support this syntax.

[k8s-ci-robot]

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[sanmai-NL]

See also kubernetes/kubernetes#72104.

[pacoxu]

/sig cli
/transfer kubectl

[eddiezane]

We don't plan on expanding kubectl cp functionality outside of pod resources. Is there a reason you'd need to use the pod/podname syntax?

[sanmai-NL]

We don't plan on expanding kubectl cp functionality outside of pod resources. Is there a reason you'd need to use the pod/podname syntax?

Hi @eddiezane,
Please see the Why this is needed section.

[MayukhSobo]

@eddiezane @sanmai-NL Is this still required..I may be interested to work on this.

[eddiezane]

@MayukhSobo we would accept a PR that adds this. It may require switching the cp command to use the builder that some of the other commands use. https://github.com/kubernetes/kubernetes/blob/4e785dc7e3ac1d01cedd23a0ed9c4a67dc9c214f/staging/src/k8s.io/kubectl/pkg/cmd/portforward/portforward.go#L304

/tirage accepted
/priority backlog
/assign @MayukhSobo