How to solve the invalid chart reference error?

[ArKam]

Hi everyone,

just playing around with helm and flux (So far I was always using kustomize) but I get an issue where flux can't reconciliate as it can't build the helm chart because it can't find it on the source repository.

I'm using a GitRepository source for this helmRelease.

The upstream git repository is: peertube-helm
set to use the tag version: 1.6.0 as this:

apiVersion: source.toolkit.fluxcd.io/v1
kind: GitRepository
metadata:
  name: peertube-helm
  namespace: peertube
spec:
  interval: 1m
  url: https://git.lecygnenoir.info/LecygneNoir/peertube-helm.git
  ref:
    tag: v1.6.0

Then I've got a helmRelease set as:

apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: v1.6.0
  namespace: peertube
spec:
  interval: 10m
  chart:
    spec:
      chart: Chart
      sourceRef:
        kind: GitRepository
        name: peertube-helm
        namespace: peertube
      interval: 5m

Flux correctly create the namespace and storage volume/claims and even correctly retrieve and create the peertube-helm gitRepository artifact.

However, it fail being able to locate the Chart.yaml file which is located at the root of the repository and end up with the following message:

invalid chart reference: stat /tmp/helmchart-peertube-peertube-helm-v1.6.0-2459170356/source/Chart: no such file or directory
Everything is located onto the same namespace (peertube).

What did I missed?

[stefanprodan]

The .spec.chart.spec.chart is the path to the chart dir, see the docs here: https://fluxcd.io/flux/components/source/helmcharts/#chart

In your case it's ./ which is really bad, as the whole Git history will end up in packaged Helm chart. Please follow the standard Helm chart template that contains https://github.com/stefanprodan/podinfo/blob/master/charts/podinfo/.helmignore

[ArKam]

I should have detailed that I've already tested the path according to the documentation yep, doesn't works neither.
I end up with the same error:

I'm not the owner of the repository hosting this chart sorry, but compared to your example, this repository just hold the chart, doesn't hold any software sources.
I could fork it tho in order to test if it make any difference to rename it and put it on a proper chart directory tho.

[stefanprodan]

There is no ./Chart dir in your repo....

[ArKam]

raaaah, nevermind, I'm dumb dumb... I don't know why I thought that the chart spec required the full relative path to the Chart.yaml file itself, where it's the DIRECTORY path of the Chart.yaml file, so yes, when I wrote ./Chart it look for <source>/Chart/Chart.yaml and not for <source>/Chart.yaml... Sorry for that.

I've understand that spec.chart is looking for a directory path by testing with your own repository and catch up that the same error was throw on it.

Thanks a lot! It works now!

[stefanprodan]

Please consider adding a .helmignore file to your repo root, otherwise Flux will use lots of resources for nothing.