fix: allow custom selectors without dict merges

charts/stable/pod-gateway/templates/webhook-admissionregistration.yaml

@@ -10,7 +10,12 @@ webhooks:
 - name: "{{ include "common.names.fullname" . }}.svc.cluster.local"
   namespaceSelector:
   {{- with .Values.webhook.namespaceSelector }}
-    {{ toYaml . | nindent 4 }}
+  {{- if eq .type "label" }}
+    matchLabels:
+      {{ .label }}: "true"
+  {{- else if eq .type "custom" }}
+    {{- toYaml .custom | nindent 4 }}
+  {{- end }}
   {{- end }}
   rules:
   - apiGroups:   [""]

charts/stable/pod-gateway/values.yaml

@@ -119,8 +119,9 @@ webhook:
   # **IMPORTANT**: Do not select the namespace where the webhook
   # is deployed to or you will get locking issues.
   namespaceSelector:
-    matchLabels:
-      routed-gateway: "true"
+    type: label
+    label: "routed-gateway"
+    custom: {}
       # matchExpressions:
       # - key: notTouch
       #   operator: NotIn