Support kubectl builtin kustomize

[jkroepke]

Hi,

I tried strategicMergePatches do today, but It failed because "kustomize": executable file not found in $PATH.

Since kubernetes 1.14, kustomize ist part of the kubectl command (kubectl kustomize). The standalone kustomize binary should not required anymore.

[eigood]

My coworker said that this is because the kustomize in kubectl is old, and not featureful enough as the standalone version.

[jkroepke]

Maybe not all feature are required for helmfile?

kustomize in kubectl is old

Just for reference: https://github.com/kubernetes-sigs/kustomize/issues/1500

[dalbani]

@jkroepke Maybe interesting to you: the Docker image of Helmfile now includes kustomize. https://github.com/roboll/helmfile/pull/1626

[jkroepke]

@eigood https://github.com/kubernetes/kubernetes/pull/98946 looks like in next kubectl, kustomize is up 2 date. this could be relevant now

[petrovicboban]

Does helmfile still require kustomize binary?

[petrovicboban]

It seems it doesn't, from #1736 . This issue should be reviewed and closed.