add service for controller deployment

config/controller-service.yaml

@@ -0,0 +1,29 @@
+# Copyright 2018 Knative Authors LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app: tekton-triggers-controller
+  name: tekton-triggers-controller
+  namespace: tekton-pipelines
+spec:
+  ports:
+  - name: metrics
+    port: 9090
+    protocol: TCP
+    targetPort: 9090
+  selector:
+    app: tekton-triggers-controller