syz-cluster: set proper Service types

As the cluster is private, use the ClusterIP type to only request a
cluster-internal IP.

Since web dashboard will need to be exposed via Load Balancer, set the
necessary metadata annotation.

Author: a-nogikh

syz-cluster/controller/service.yaml

@@ -12,3 +12,4 @@ spec:
   - protocol: TCP
     port: 8080
     targetPort: 8080
+  type: ClusterIP

syz-cluster/dashboard/service.yaml

@@ -12,4 +12,4 @@ spec:
   - protocol: TCP
     port: 80
     targetPort: 8081
-  type: LoadBalancer
+  type: ClusterIP

syz-cluster/overlays/gke/kustomization.yaml

@@ -31,3 +31,11 @@ patches:
         path: /spec/templates/0/nodeSelector
         value:
           cloud.google.com/gke-nodepool: nested-vm-pool
+  - target:
+      kind: Service
+      name: web-dashboard-service
+    patch: |-
+      - op: replace
+        path: /metadata/annotations
+        value:
+          cloud.google.com/neg: '{"exposed_ports": {"80":{"name": "web-dashboard"}}}'

syz-cluster/reporter-server/service.yaml

@@ -12,3 +12,4 @@ spec:
   - protocol: TCP
     port: 8080
     targetPort: 8080
+  type: ClusterIP