Finding kustomize version shipped with kubectl

Question

I usually use the kustomize supplied with kubectl. I'm wondering if there is a way to find the kustomize version that is shipped with kubectl ?

Answer 1

For earlier version of kubectl, there was no such way of doing it and there was an issue related to it: https://github.com/kubernetes-sigs/kustomize/issues/1424

But it has been fixed recently and it seems starting from 1.24 we are able to get the version by just doing kubectl version:

❯ ./kubectl version --short --client
Flag --short has been deprecated, and will be removed in the future. The --short output will become the default.
Client Version: v1.24.8
Kustomize Version: v4.5.4

For the older clients, you can find that it is documented in the kustomize's README here: https://github.com/kubernetes-sigs/kustomize#kubectl-integration

Kubectl version	Kustomize version
< v1.14	n/a
v1.14-v1.20	v2.0.3
v1.21	v4.0.5
v1.22	v4.2.0