configMapGenerator issues - flux looks for unhashed configmap name

[reallydontask]

I'm trying to follow this example: https://fluxcd.io/flux/guides/helmreleases/#refer-to-values-in-configmaps-generated-with-kustomize to install cert-manager

I have created a kustomizeconfig.yaml

nameReference:
- kind: ConfigMap
  version: v1
  fieldSpecs:
  - path: ./cluster-configuration/controllers/cert-manager/values.yml
    kind: HelmRelease

then a kustomization.yaml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: cert-manager
resources:
  - cert-manager.yaml
configMapGenerator:
  - name: cert-manager-values
    files:
      - values.yml=values.yml
configurations:
  - kustomizeconfig.yaml

and this is the cert-manager.yaml

---
apiVersion: v1
kind: Namespace
metadata:
  name: cert-manager  
---
apiVersion: source.toolkit.fluxcd.io/v1
kind: HelmRepository
metadata:
  name: cert-manager
  namespace: cert-manager
spec:
  interval: 24h
  url: https://charts.jetstack.io
---
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: cert-manager
  namespace: cert-manager
spec:
  interval: 30m
  releaseName: cert-manager
  chart:
    spec:
      chart: cert-manager
      sourceRef:
        kind: HelmRepository
        name: cert-manager
  valuesFrom:
    - kind: ConfigMap
      name: cert-manager-values

This fails with:

could not resolve ConfigMap chart values reference 'cert-manager/cert-manager-values' with key 'values.yaml': configmaps "cert-manager-values" not found

Not sure where I'm going wrong with this, as the kustomized helmrelease resource hasn't been updated with the hashed configmap name, so the error is consistent with the state of the system, but why isn't the helmrelease object being updated?

Any ideas?

TIA

[stefanprodan]

The path is wrong here:

nameReference:
- kind: ConfigMap
  version: v1
  fieldSpecs:
  - path: ./cluster-configuration/controllers/cert-manager/values.yml
    kind: HelmRelease

This path refers to the spec of the HelmRelease, see the docs: https://fluxcd.io/flux/guides/helmreleases/#refer-to-values-in-configmaps-generated-with-kustomize

[reallydontask]

Thanks for your reply

I guess it should be cert-manager then, like this or have I misunderstood what you mean?

nameReference:
- kind: ConfigMap
  version: v1
  fieldSpecs:
  - path: cert-manager
    kind: HelmRelease

[stefanprodan]

No, it should be what's written in the docs, the JSON path to where Kustomize should patch the name of the ConfigMap spec/valuesFrom/name.

[reallydontask]

🤦‍♂️ Thanks for your help

I totally misread that