[Sonatype-Nexus] strange PVC name

[mtcolman]

Hi, I'm creating a release mc-testn and using statefulset.enabed=true and persistence.enabled=true. The PVC that gets created for me is called:

mc-testn-sonatype-nexus-data-mc-testn-sonatype-nexus-0

And I can't work out why it is given this name, as the pvc.yaml code is:

name: {{ template "nexus.fullname" . }}-data

(But pvc.yaml isn't being used because I don't match {{- if not .Values.statefulset.enabled }}).

So it appears it is appending "-mc-testn-sonatype-nexus-0" somehow?

Thanks.

edit:

I've done some further testing, editing the deployment-statefulset.yaml.

If I set the pvc volumeClaimTemplate as follows:

## create pvc in case of statefulsets
  volumeClaimTemplates:
    - metadata:
        name: mc-testa-sonatype-nexus-data        # notice: mc-testa
        labels:
          app: sonatype-nexus
          fullname: mc-testb-sonatype-nexus         # notice: mc-testb
          chart: sonatype-nexus
          release: mc-testc                        # notice: mc-testc
          heritage: Helm
      spec:
        accessModes:
          - "ReadWriteOnce"
        resources:
          requests:
            storage: "8Gi"

And statefulset spec as:

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mc-testc-sonatype-nexus           # notice: mc-testc
  ...
...
          volumeMounts:
            - mountPath: /nexus-data
              name: mc-testc-sonatype-nexus-data  # notice: mc-testc

I get:

oc get pvc
NAME                                                     STATUS    VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS      AGE
mc-testa-sonatype-nexus-data-mc-testc-sonatype-nexus-0   Bound    pvc-12a6a39a-1eb3-49d4-8a52-f8d7f19bd01d   20Gi       RWO            ibmc-block-gold   3m55s

A further test, using:

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mc-teste-sonatype-nexus   # notice: mc-teste
  
  volumeClaimTemplates:
    - metadata:
        name: mc-testa-sonatype-nexus-data      # notice: mc-testa
        labels:
          app: sonatype-nexus
          fullname: mc-testb-sonatype-nexus
          chart: sonatype-nexus
          release: mc-testf
          heritage: Helm

Shows it's these two values that are coming into play.

Given that the statefulSet/deployment needs the full name rendering, does the PVC really need it repeated twice?

Could the PVC config in deployment-statefulset.yaml be changed to:

## create pvc in case of statefulsets
  {{- if .Values.statefulset.enabled }}
  volumeClaimTemplates:
    {{- if .Values.persistence.enabled }}
    - metadata:
        name: "data"

Which (when done locally in my copy of the chart), creates a PVC named:

data-mc-testx-sonatype-nexus-0

Or something like that?