fix existing claim

Author: Wyatt Henke

charts/factorio-server-charts/templates/datadir-pvc.yaml

@@ -1,3 +1,4 @@
+{{ if not .Values.persistence.dataDir.existingClaim }}
 kind: PersistentVolumeClaim
 apiVersion: v1
 metadata:
@@ -10,4 +11,5 @@ spec:
   resources:
     requests:
       storage: {{ .Values.persistence.dataDir.Size | quote }}
-  storageClassName: "{{ .Values.persistence.storageClass }}"
+  storageClassName: "{{ .Values.persistence.storageClass }}"
+  {{ end }}

charts/factorio-server-charts/templates/deployment.yaml

@@ -59,7 +59,7 @@ spec:
       volumes:
         - name: datadir
           persistentVolumeClaim:
-            claimName: {{ template "factorio-server-charts.fullname" . }}-datadir
+            claimName: {{ if .Values.persistence.dataDir.existingClaim }} {{.Values.persistence.dataDir.existingClaim}} {{ else }}{{ template "factorio-server-charts.fullname" . }}-datadir {{ end }}
         - name: {{ template "factorio-server-charts.fullname" . }}-serversettingsconfig
           configMap:
             name: {{ template "factorio-server-charts.fullname" . }}-serversettingsconfig