Prepare k8s deployment

solves #92 (closed)

build/cd/20-service.yaml

-kind: Service
-apiVersion: v1
-metadata:
-  name: gosdn-develop
-  labels:
-    run: gosdn-develop
-spec:
-  type: NodePort
-  ports:
-    - name: http
-      protocol: TCP
-      port: 8080
-      targetPort: 8080
-    - name: grpc
-      protocol: TCP
-      port: 55055
-      targetPort: 55055
-  selector:
-    run: gosdn-develop
\ No newline at end of file