Add support for "kubectl apply -k" in addition to "kustomize"

[poikilotherm]

This is a feature request, not a bug report.

Currently, with v0.33.0 you can use either kubectl or kustomize deployer.
When a kustomization.yaml file is present, the kubectl deployer fails, as validation is failing (see also kubernetes-sigs/kustomize#738).

On the other hand, I need to install standalone kustomize binary for kustomize deployer, when I could as well use kubectl apply -k. These days, kustomize has been integrated into kubectl and should be available.

I request a feature that Skaffold is able to use kubectl apply -k, so less tools need to be installed to get people started. This might be safeguarded by looking at the kubectl version, giving a gracefull error message when an upgraded version or standalone installation is necessary.

Thank you!

[priyawadhwa]

Hey @poikilotherm thanks for opening this feature request, you make some good points and I definitely agree it's an important feature to add. We have an open issue for this (#1781) and we are planning on getting to this soon! I'm going to close this issue as a dupe of the other one, but until we add this feature in you can work around it by specifying -k as an additional flag to pass to kubectl:

kubectl:
  flags:
    apply:
      - -
      - k

Here's the skaffold config reference for more info about specifying additional kubectl apply flags.

[poikilotherm]

Sorry for the noise... I tried to search the issues for this but did not find that issue, maybe just overlooked it. Thx for pointing it out and adding the workaround 👍

[franxois]

Hey @poikilotherm thanks for opening this feature request, you make some good points and I definitely agree it's an important feature to add. We have an open issue for this (#1781) and we are planning on getting to this soon! I'm going to close this issue as a dupe of the other one, but until we add this feature in you can work around it by specifying -k as an additional flag to pass to kubectl:

kubectl:
  flags:
    apply:
      - -
      - k

Here's the skaffold config reference for more info about specifying additional kubectl apply flags.

Hi,
Thanks for the workaround, but for me ["-","k"] did works. I had to use

  kubectl:
    flags:
      global:
        - -k

Cleanup doesn't work, ends with :
error: only one of -f or -k can be specified