zookeeper - use service with pod-name selector

The zookeeper sts is not supposed to scale up. So ensure service can
only redirect traffic to pod-0.

Change-Id: Ie9080d896a2ee7c90c46e29b72b66805d0612888

controllers/libs/base/base.go

@@ -262,6 +262,14 @@ func MkHeadlessService(name string, ns string, selector string, ports []int32, p
 	return service
 }
 
+// MkHeadlessServicePod produces a headless service.
+func MkHeadlessServicePod(name string, ns string, podName string, ports []int32, portName string) apiv1.Service {
+	service := MkServicePod(name, ns, podName, ports, portName)
+	service.ObjectMeta.Name = name + "-headless"
+	service.Spec.ClusterIP = "None"
+	return service
+}
+
 // MkHTTPSRoute produces a Route on top of a Service
 func MkHTTPSRoute(
 	name string, ns string, host string, serviceName string, path string,

controllers/zookeeper.go

@@ -94,13 +94,11 @@ func (r *SFController) DeployZookeeper() bool {
 		},
 	}
 
-	servicePorts := []int32{zkSSLPort}
-	srv := base.MkService(zkIdent, r.ns, zkIdent, servicePorts, zkIdent)
-	r.GetOrCreate(&srv)
+	srv := base.MkServicePod(zkIdent, r.ns, zkIdent+"-0", []int32{zkSSLPort}, zkIdent)
+	r.EnsureService(&srv)
 
-	headlessPorts := []int32{zkSSLPort, zkElectionPort, zkServerPort}
-	srvZK := base.MkHeadlessService(zkIdent, r.ns, zkIdent, headlessPorts, zkIdent)
-	r.GetOrCreate(&srvZK)
+	srvZK := base.MkHeadlessServicePod(zkIdent, r.ns, zkIdent+"-0", []int32{zkSSLPort, zkElectionPort, zkServerPort}, zkIdent)
+	r.EnsureService(&srvZK)
 
 	storageConfig := r.getStorageConfOrDefault(r.cr.Spec.Zookeeper.Storage)
 	zk := r.mkHeadlessSatefulSet(