Allow to skip CRD only from a dependency

[sathieu]

Allow to skip CRDs at dependency level:

# Chart.yaml
apiVersion: v2
name: "istio"
version: 0.0.1
dependencies:
  - name: kube-prometheus-stack
    repository: https://gitlab.example.org/api/v4/projects/external-packages%2Fprometheus-stack/packages/helm/stable/
    version: 30.0.1
    skipCRDs: true

Output of helm version:

version.BuildInfo{Version:"v3.7.2", GitCommit:"663a896f4a815053445eec4153677ddc24a0a361", GitTreeState:"clean", GoVersion:"go1.16.10"}

Output of kubectl version:

Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.5", GitCommit:"aea7bbadd2fc0cd689de94a54e5b7b758869d691", GitTreeState:"clean", BuildDate:"2021-09-15T21:10:45Z", GoVersion:"go1.16.8", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"22", GitVersion:"v1.22.5", GitCommit:"5c99e2ac2ff9a3c549d9ca665e7bc05a3e18f07e", GitTreeState:"clean", BuildDate:"2021-12-16T08:32:32Z", GoVersion:"go1.16.12", Compiler:"gc", Platform:"linux/amd64"}

Cloud Provider/Platform (AKS, GKE, Minikube etc.):

Bare-metal (kubespray)

[mattfarina]

Could you please share your use case for this?

helm install already has a --skip-crds flag so that the one doing the install can skip all of the CRDs at install time. What would this do differently and for whom?

[sathieu]

@mattfarina My usecase (I'm using ArgoCD as gitops tool):

• I install a chart depending on the kube-prometheus-stack in one namespace
• I install another chart depending on kube-prometheus-stack and istio in another namespace

I get two prometheus installs (a main one, and another dedicated to istio, with shorter scraping interval and shorter retention), but I only want to install the CRDs once. In the second chart, I want the istio CRDs but not the prometheus CRDs.

As a workaround, I can use 3 charts, but I prefer to group istio and it's prometheus, because those are tightly linked.

[Cheshirez]

Upvote for this feature as it allow to control sources for CRDs without interference from dependencies or subdependencies.

[github-actions]

This issue has been marked as stale because it has been open for 90 days with no activity. This thread will be automatically closed in 30 days if no further activity occurs.

[cuongquach]

I think this feature is useful for us in management group of helm dependency resources with CRDs. Could we re-open this issue ?