addes support for matchExpressions

cmd/policygen/templates/netpol/pod/apiserver.yaml

@@ -5,9 +5,11 @@ apiVersion: cilium.io/v2
 metadata:
   name: {{.app.Name}}-apiserver
   namespace: {{.app.Namespace.Name}}
-  labels: {{ .labels | toYaml | nindent 4 }}
+  labels: {{ .labels | toJson }}
 spec:
-  endpointSelector: {{ .app.MatchLabels | toYaml | nindent 4 }}
+  endpointSelector:
+    matchLabels: {{ .app.MatchLabels | toJson }}
+    matchExpressions: {{ .app.MatchExpressions | toJson }}
   {{- if .ingress }}
   ingress:
   - fromEntities:

cmd/policygen/templates/netpol/pod/pod.yaml

@@ -12,6 +12,7 @@
       # {{ .Application.Namespace.Name }}/{{ .Application.Name }}
       - podSelector:
           matchLabels: {{ .Application.MatchLabels | toJson }}
+          matchExpressions: {{ .Application.MatchExpressions | toJson }}
         namespaceSelector:
           matchLabels:
             kubernetes.io/metadata.name: {{ .Application.Namespace.Name }}
@@ -45,11 +46,12 @@ apiVersion: networking.k8s.io/v1
 metadata:
   name: "{{.app.Name}}"
   namespace: "{{.app.Namespace.Name }}"
-  labels: {{ .labels | toYaml | nindent 4 }}
+  labels: {{ .labels | toJson }}
 spec:
   # {{ .app.Namespace.Name }}/{{ .app.Name }}
   podSelector:
     matchLabels: {{ .app.MatchLabels | toJson }}
+    matchExpressions: {{ .app.MatchExpressions | toJson }}
   policyTypes:
     {{- if or .ingress.Applications .ingress.Networks }}
     - Ingress