Add knobs to set the size of the pvcs(log, txlog, sessions).

 name: test
 namespace: default
+storage:
+  log:
+    requests: 10Gi
+    storageClassName: null
+  txlog:
+    requests: 2Gi
+    storageClassName: null
+  sessions:
+    requests: 2Gi
+    storageClassName: null
 elasticsearch:
   enabled: true
   version: 8.2.3

@@ -144,6 +144,42 @@ releases:
           {{- end }}
 
     strategicMergePatches:
+      - apiVersion: v1
+        kind: PersistentVolumeClaim
+        metadata:
+          name: {{ .Values.name }}-moqui-log
+          namespace: {{ .Values.namespace }}
+        spec:
+          resources:
+            requests:
+              storage: {{ .Values.storage.log.requests }}
+          {{- if .Values.storage.log.storageClassName }}
+          storageClassName: {{ .Values.storage.log.storageClassName }}
+          {{- end }}
+      - apiVersion: v1
+        kind: PersistentVolumeClaim
+        metadata:
+          name: {{ .Values.name }}-moqui-txlog
+          namespace: {{ .Values.namespace }}
+        spec:
+          resources:
+            requests:
+              storage: {{ .Values.storage.txlog.requests }}
+          {{- if .Values.storage.txlog.storageClassName }}
+          storageClassName: {{ .Values.storage.txlog.storageClassName }}
+          {{- end }}
+      - apiVersion: v1
+        kind: PersistentVolumeClaim
+        metadata:
+          name: {{ .Values.name }}-moqui-sessions
+          namespace: {{ .Values.namespace }}
+        spec:
+          resources:
+            requests:
+              storage: {{ .Values.storage.sessions.requests }}
+          {{- if .Values.storage.sessions.storageClassName }}
+          storageClassName: {{ .Values.storage.sessions.storageClassName }}
+          {{- end }}
       - apiVersion: apps/v1
         kind: Deployment
         metadata: