Add backend-protocol annotation to m3coordinator-lb

LB now properly speaks HTTP to the coordinator backend

05-m3coordinator.yaml

@@ -136,6 +136,9 @@ metadata:
   labels:
     app.kubernetes.io/name: m3coordinator
     app.kubernetes.io/part-of: m3db
+  annotations:
+    # Backend speaks HTTP so LB can do health checks and proper proxying
+    service.beta.kubernetes.io/vultr-loadbalancer-backend-protocol: "http"
 spec:
   type: LoadBalancer
   ports: