Switched to overlay network transport.

docker/cleanup.go

@@ -57,7 +57,7 @@ func cleanup(w http.ResponseWriter, r *http.Request){
 	if err != nil {
 		panic("Failed to remove helper service."+ err.Error());
 	}
-	time.Sleep(15*time.Second);
+	time.Sleep(7*time.Second);
 
 	fmt.Fprint(w, bodyDecoded.ServiceId);
 }

docker/prepare.go

@@ -45,14 +45,16 @@ func prepare(w http.ResponseWriter, r *http.Request){
 
 	maxConcurrent := uint64(1);
 	totalCompletions := uint64(1);
+	stopGracePeriod := time.Second * 5;
 	targetNode := labels["blazena.node"];
 	helperCommand := `ssh-keygen -t ed25519 -f /host_key && \
 			echo "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIByYbl8vu946LPycSO5pBohq3vMvvl+wX7snu1Bqpd7p test" > /root/.ssh/authorized_keys && \
-			/usr/sbin/sshd -h /host_key -p 22 -D`;
+			/usr/sbin/sshd -h /host_key -p 2222 -D`;
 
 	
 	_, err = ApiClient.ServiceCreate(context.Background(), swarm.ServiceSpec{
 		Annotations: swarm.Annotations{
+			Name: "BlazenaHelper",
 			Labels: map[string]string{"blazena.helper": "true"},
 		},
 		Mode: swarm.ServiceMode{
@@ -72,20 +74,14 @@ func prepare(w http.ResponseWriter, r *http.Request){
 						Type: "volume",
 					},
 				},
+				StopGracePeriod: &stopGracePeriod,
 			},
 			Placement: &swarm.Placement{
 				Constraints: []string{"node.hostname=="+targetNode},
 			},
-		},
-		EndpointSpec: &swarm.EndpointSpec{
-			Ports: []swarm.PortConfig{
-				swarm.PortConfig{
-					Protocol: swarm.PortConfigProtocolTCP,
-					TargetPort: uint32(22),	
-					PublishedPort: uint32(2222),
-					PublishMode: swarm.PortConfigPublishModeHost,
-				},
-			},
+			Networks: []swarm.NetworkAttachmentConfig{swarm.NetworkAttachmentConfig{
+				Target: "blazenaPohar",
+			}},
 		},
 	}, swarm.ServiceCreateOptions{});
 
@@ -93,7 +89,7 @@ func prepare(w http.ResponseWriter, r *http.Request){
 		panic("Failed to create helper service."+ err.Error());
 	}
 
-	time.Sleep(15*time.Second);
+	time.Sleep(7*time.Second);
 	fmt.Fprint(w, bodyDecoded.ServiceId);
 }
 

host/host.go

@@ -52,12 +52,11 @@ func Run(Config cfg.Config) {
 			fmt.Println("Done!");
 
 			command := `apk add --no-cache rsync openssh-client && \
-				echo "It Works Under Water!"`;
+				ping -c 10 BlazenaHelper`;
 				//rsync -avz --delete -e "ssh -i /ssh-key -p 2222 -o StrictHostKeyChecking=no" \
 				//root@`+Config.Nodes[service.Node].Ip+`:/volume/ /tmp`
 
 
-			time.Sleep(15*time.Second);
 			exec, err := DockerClient.ContainerExecCreate(context.Background(), "BlazenaStorage", container.ExecOptions{
 				Cmd: []string{"sh", "-c", command},
 				AttachStdout: true,
@@ -72,8 +71,9 @@ func Run(Config cfg.Config) {
 			resp, err := DockerClient.ContainerExecAttach(context.Background(), exec.ID, container.ExecStartOptions{});
 			defer resp.Close();
 
-			//io.Copy(os.Stdout, resp.Reader)
+			io.Copy(os.Stdout, resp.Reader)
 
+			time.Sleep(30*time.Second);
 			fmt.Println("Cleaning Up: " + service.ServiceId);
 			cleanupService(Config, service);
 			fmt.Println("Done!");
@@ -83,7 +83,6 @@ func Run(Config cfg.Config) {
 		fmt.Println("Done!");
 	}
 
-	time.Sleep(15*time.Second);
 	DockerClient.ContainerRemove(context.Background(), "BlazenaStorage", container.RemoveOptions{
 		Force: true,
 	});