Support for existingClaim

charts/common/templates/_pvc.yaml

@@ -1,5 +1,6 @@
 {{- define "common.pvc.tpl" -}}
 {{- range .Values.volumes }}
+{{- if not .existingClaim }}
 {{- $robustName := include "common.robustName" $.Release.Name }}
 ---
 apiVersion: v1
@@ -15,4 +16,5 @@ spec:
     requests:
       storage: {{ .size | default "1Gi" }}
 {{- end }}
+{{- end }}
 {{- end -}}

charts/common/templates/_volumesRef.yaml

@@ -4,7 +4,11 @@ volumes:
   {{- range .Values.volumes }}
   - name: {{ .name }}
     persistentVolumeClaim:
+      {{- if .existingClaim }}
+      claimName: {{ .existingClaim }}
+      {{ else }}
       claimName: {{ printf "%s-%s" $.Release.Name .name }}
+      {{- end }}
   {{- end }}
   {{- range .Values.sealedFileSecrets }}
   - name: {{ .name }}