fix syntax error

helm-chart/templates/networkpolicy.yaml

@@ -1,14 +1,14 @@
 apiVersion: networking.k8s.io/v1
 kind: NetworkPolicy
 metadata:
-  name: {? {.Values.name: ''} : ''}
-  namespace: {? {.Values.namespace | default .Values.name: ''} : ''}
+  name: {{ .Values.name }}
+  namespace: {{ .Values.namespace | default .Values.name }}
   labels:
-    service: {? {.Values.name: ''} : ''}
+    service: {{ .Values.name }}
 spec:
   podSelector:
     matchLabels:
-      service: {? {.Values.name: ''} : ''}
+      service: {{ .Values.name }}
   policyTypes:
     - Ingress
     - Egress
@@ -19,8 +19,9 @@ spec:
               name: ingress-nginx
       ports:
         - protocol: TCP
-          port: {? {.Values.port: ''} : ''}
-  egress: {}
+          port: {{ .Values.port }}
+  egress: 
+    - {}
     # TODO, optionally add egress restriction.
     # - to:
     #     - namespaceSelector: {}