func main() {
flag.Parse()
config := marathon.NewDefaultConfig()
config.URL = marathon_url
config.LogOutput = os.Stdout
config.EventsPort = marathon_port
config.EventsInterface = marathon_interface
glog.Infof("Creating a client Marathon: %s", marathon_url)
client, err := marathon.NewClient(config)
Assert(err)
/* step: lets register for events */
events := make(marathon.EventsChannel, 5)
deployments := make(marathon.EventsChannel, 5)
Assert(client.AddEventsListener(events, marathon.EVENTS_APPLICATIONS))
Assert(client.AddEventsListener(deployments, marathon.EVENT_DEPLOYMENT_STEP_SUCCESS))
// lets listen for 10 seconds and then split
timer := time.After(time.Duration(timeout) * time.Second)
kill_off := false
for {
if kill_off {
break
}
select {
case <-timer:
glog.Infof("Exitting the loop")
kill_off = true
case event := <-events:
glog.Infof("Recieved application event: %s", event)
case event := <-deployments:
glog.Infof("Recieved deployment event: %v", event)
var deployment *marathon.EventDeploymentStepSuccess
deployment = event.Event.(*marathon.EventDeploymentStepSuccess)
glog.Infof("deployment step:: %v", deployment.CurrentStep)
}
}
glog.Infof("Removing our subscription")
client.RemoveEventsListener(events)
client.RemoveEventsListener(deployments)
Assert(client.UnSubscribe())
}
func main() {
flag.Parse()
config := marathon.NewDefaultConfig()
config.URL = marathon_url
config.LogOutput = os.Stdout
client, err := marathon.NewClient(config)
if err != nil {
glog.Fatalf("Failed to create a client for marathon, error: %s", err)
}
for {
if application, err := client.Applications(nil); err != nil {
glog.Errorf("Failed to retrieve a list of applications, error: %s", err)
} else {
glog.Infof("Retrieved a list of applications, %v", application)
}
glog.Infof("Going to sleep for 20 seconds")
time.Sleep(5 * time.Second)
}
}
func main() {
flag.Parse()
config := marathon.NewDefaultConfig()
config.URL = marathon_url
config.LogOutput = os.Stdout
client, err := marathon.NewClient(config)
Assert(err)
applications, err := client.Applications(nil)
Assert(err)
glog.Infof("Found %d application running", len(applications.Apps))
for _, application := range applications.Apps {
glog.Infof("Application: %s", application)
details, err := client.Application(application.ID)
Assert(err)
if details.Tasks != nil && len(details.Tasks) > 0 {
for _, task := range details.Tasks {
glog.Infof("task: %s", task)
}
health, err := client.ApplicationOK(details.ID)
Assert(err)
glog.Infof("Application: %s, healthy: %t", details.ID, health)
}
}
APPLICATION_NAME := "/my/product"
if found, _ := client.HasApplication(APPLICATION_NAME); found {
deployId, err := client.DeleteApplication(APPLICATION_NAME)
Assert(err)
waitOnDeployment(client, deployId)
}
glog.Infof("Deploying a new application")
application := marathon.NewDockerApplication()
application.Name(APPLICATION_NAME)
application.CPU(0.1).Memory(64).Storage(0.0).Count(2)
application.Arg("/usr/sbin/apache2ctl").Arg("-D").Arg("FOREGROUND")
application.AddEnv("NAME", "frontend_http")
application.AddEnv("SERVICE_80_NAME", "test_http")
application.RequirePorts = true
application.Container.Docker.Container("quay.io/gambol99/apache-php:latest").Expose(80).Expose(443)
_, err = client.CreateApplication(application)
Assert(err)
glog.Infof("Scaling the application to 4 instances")
deployId, err := client.ScaleApplicationInstances(application.ID, 4, false)
Assert(err)
client.WaitOnApplication(application.ID, 30*time.Second)
glog.Infof("Successfully scaled the application, deployId: %s", deployId.DeploymentID)
glog.Infof("Deleting the application: %s", APPLICATION_NAME)
deployId, err = client.DeleteApplication(application.ID)
Assert(err)
time.Sleep(time.Duration(10) * time.Second)
glog.Infof("Successfully deleted the application")
glog.Infof("Starting the application again")
_, err = client.CreateApplication(application)
Assert(err)
glog.Infof("Created the application: %s", application.ID)
glog.Infof("Delete all the tasks")
_, err = client.KillApplicationTasks(application.ID, "", false)
Assert(err)
}
func main() {
flag.Parse()
config := marathon.NewDefaultConfig()
config.URL = marathon_url
config.LogOutput = os.Stdout
client, err := marathon.NewClient(config)
if err != nil {
glog.Fatalf("Failed to create a client for marathon, error: %s", err)
}
glog.Infof("Retrieving a list of groups")
if groups, err := client.Groups(); err != nil {
glog.Errorf("Failed to retrieve the groups from maratho, error: %s", err)
} else {
for _, group := range groups.Groups {
glog.Infof("Found group: %s", group.ID)
}
}
GROUP_NAME := "/product/group"
found, err := client.HasGroup(GROUP_NAME)
Assert(err)
if found {
glog.Infof("Deleting the grouy: %s, as it already exists", GROUP_NAME)
id, err := client.DeleteGroup(GROUP_NAME)
Assert(err)
err = client.WaitOnDeployment(id.DeploymentID, 0)
Assert(err)
}
/* step: the frontend app */
frontend := marathon.NewDockerApplication()
frontend.Name("/product/group/frontend")
frontend.CPU(0.1).Memory(64).Storage(0.0).Count(2)
frontend.Arg("/usr/sbin/apache2ctl").Arg("-D").Arg("FOREGROUND")
frontend.AddEnv("NAME", "frontend_http")
frontend.AddEnv("SERVICE_80_NAME", "frontend_http")
frontend.AddEnv("SERVICE_443_NAME", "frontend_https")
frontend.AddEnv("BACKEND_MYSQL", "/product/group/mysql/3306;3306")
frontend.AddEnv("BACKEND_CACHE", "/product/group/cache/6379;6379")
frontend.DependsOn("/product/group/cache")
frontend.DependsOn("/product/group/mysql")
frontend.Container.Docker.Container("quay.io/gambol99/apache-php:latest").Expose(80).Expose(443)
_, err = frontend.CheckHTTP("/hostname.php", 80, 10)
Assert(err)
mysql := marathon.NewDockerApplication()
mysql.Name("/product/group/mysql")
mysql.CPU(0.1).Memory(128).Storage(0.0).Count(1)
mysql.AddEnv("NAME", "group_cache")
mysql.AddEnv("SERVICE_3306_NAME", "mysql")
mysql.AddEnv("MYSQL_PASS", "mysql")
mysql.Container.Docker.Container("tutum/mysql").Expose(3306)
_, err = mysql.CheckTCP(3306, 10)
Assert(err)
redis := marathon.NewDockerApplication()
redis.Name("/product/group/cache")
redis.CPU(0.1).Memory(64).Storage(0.0).Count(2)
redis.AddEnv("NAME", "group_cache")
redis.AddEnv("SERVICE_6379_NAME", "redis")
redis.Container.Docker.Container("redis:latest").Expose(6379)
_, err = redis.CheckTCP(6379, 10)
Assert(err)
group := marathon.NewApplicationGroup(GROUP_NAME)
group.App(frontend).App(redis).App(mysql)
Assert(client.CreateGroup(group))
glog.Infof("Successfully created the group: %s", group.ID)
glog.Infof("Updating the group paramaters")
frontend.Count(4)
id, err := client.UpdateGroup(GROUP_NAME, group)
Assert(err)
glog.Infof("Successfully updated the group: %s, version: %s", group.ID, id.DeploymentID)
Assert(client.WaitOnGroup(GROUP_NAME, 500*time.Second))
}