[stable/minecraft] Added option to use existing persistentVolumeClaim (#22654)

Signed-off-by: Joseph Stanton <jsromejoe@gmail.com>

stable/minecraft/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: minecraft
-version: 1.2.3
+version: 1.2.4
 appVersion: 1.14.4
 home: https://minecraft.net/
 description: Minecraft server

stable/minecraft/templates/datadir-pvc.yaml

@@ -1,4 +1,4 @@
-{{- if .Values.persistence.dataDir.enabled -}}
+{{- if and .Values.persistence.dataDir.enabled (not .Values.persistence.dataDir.existingClaim ) -}}
 kind: PersistentVolumeClaim
 apiVersion: v1
 metadata:

stable/minecraft/templates/deployment.yaml

@@ -201,7 +201,11 @@ spec:
       - name: datadir
       {{- if .Values.persistence.dataDir.enabled }}
         persistentVolumeClaim:
+        {{- if .Values.persistence.dataDir.existingClaim }}
+          claimName: {{ .Values.persistence.dataDir.existingClaim }}
+        {{- else }}
           claimName: {{ template "minecraft.fullname" . }}-datadir
+        {{- end }}
       {{- else }}
         emptyDir: {}
       {{- end }}

stable/minecraft/values.yaml

@@ -173,6 +173,7 @@ persistence:
   dataDir:
     # Set this to false if you don't care to persist state between restarts.
     enabled: true
+    # existingClaim: nil
     Size: 1Gi
 
 podAnnotations: {}