func main() {
pwd, err := os.Getwd()
if err != nil {
log.Fatal(err)
}
se := &ShellExecutor{pwd: pwd, finish: make(chan string),
process: make(map[string]*exec.Cmd)}
driver := mesos.ExecutorDriver{
Executor: &mesos.Executor{
Registered: se.OnRegister,
KillTask: se.OnKillTask,
LaunchTask: se.OnLaunchTask,
Shutdown: se.OnShutdown,
Error: se.OnError,
Disconnected: se.OnDisconnected,
},
}
go se.EventLoop()
driver.Init()
defer driver.Destroy()
driver.Run()
}
func (self *ShellExecutor) OnLaunchTask(driver *mesos.ExecutorDriver, taskInfo mesos.TaskInfo) {
fmt.Println("Launch task:", taskInfo.TaskId.GetValue())
log.Debug("send running state")
self.sendStatusUpdate(taskInfo.TaskId.GetValue(), mesos.TaskState_TASK_RUNNING, "task is running!")
log.Debugf("%+v", os.Args)
startch := make(chan struct{}, 1)
if len(os.Args) == 2 {
fname := taskInfo.TaskId.GetValue()
ioutil.WriteFile(fname, []byte(os.Args[1]), 0644)
cmd := exec.Command("/bin/sh", fname)
go func() {
defer func() {
self.finish <- taskInfo.TaskId.GetValue()
log.Debug("send finish state")
self.sendStatusUpdate(taskInfo.TaskId.GetValue(), mesos.TaskState_TASK_FINISHED, "Go task is done!")
time.Sleep(10 * time.Second)
driver.Stop()
}()
self.lock.Lock()
self.process[taskInfo.TaskId.GetValue()] = cmd
self.lock.Unlock()
startch <- struct{}{}
out, err := cmd.Output()
if err != nil {
log.Error(err.Error())
} else {
fmt.Println(string(out))
// log.Debug(string(out))
}
}()
} else {
log.Debug("send finish state")
self.sendStatusUpdate(taskInfo.TaskId.GetValue(), mesos.TaskState_TASK_FINISHED, "Go task is done!")
time.Sleep(10 * time.Second)
driver.Stop()
}
<-startch
}
func main() {
driver := mesos.ExecutorDriver{
Executor: &mesos.Executor{
Registered: func(
driver *mesos.ExecutorDriver,
executor mesos.ExecutorInfo,
framework mesos.FrameworkInfo,
slave mesos.SlaveInfo) {
fmt.Println("Executor registered!")
},
LaunchTask: func(driver *mesos.ExecutorDriver, taskInfo mesos.TaskInfo) {
fmt.Println("Launch task!")
driver.SendStatusUpdate(&mesos.TaskStatus{
TaskId: taskInfo.TaskId,
State: mesos.NewTaskState(mesos.TaskState_TASK_RUNNING),
Message: proto.String("Go task is running!"),
})
driver.SendStatusUpdate(&mesos.TaskStatus{
TaskId: taskInfo.TaskId,
State: mesos.NewTaskState(mesos.TaskState_TASK_FINISHED),
Message: proto.String("Go task is done!"),
})
},
},
}
driver.Init()
defer driver.Destroy()
driver.Run()
}
func (self *ShellExecutor) OnLaunchTask(driver *mesos.ExecutorDriver, taskInfo mesos.TaskInfo) {
taskId := taskInfo.TaskId.GetValue()
fmt.Println("Launch task:", taskId)
log.Debug("send running state")
self.sendStatusUpdate(taskId, mesos.TaskState_TASK_RUNNING, "")
pwd, err := os.Getwd()
if err != nil {
log.Error(err)
}
eventFile := path.Join(pwd, genTyrantFile(taskId, "event"))
touch(eventFile)
os.Setenv("TyrantStatusFile", eventFile)
f := self.tailf(eventFile, taskId)
log.Debugf("%+v", os.Args)
startch := make(chan struct{}, 1)
if len(os.Args) == 2 {
fname := genTyrantFile(taskId, "sh")
arg, err := base64.StdEncoding.DecodeString(os.Args[1])
if err != nil {
log.Error(err, arg)
}
ioutil.WriteFile(fname, arg, 0644)
cmd := exec.Command("/bin/sh", fname)
go func(taskId string) {
var err error
defer func() {
s := mesos.TaskState_TASK_FINISHED
if err != nil {
s = mesos.TaskState_TASK_FAILED
}
self.finish <- taskId
log.Debug("send taskend state")
self.sendStatusUpdate(taskId, s, "")
f.Stop()
time.Sleep(3 * time.Second)
driver.Stop()
}()
self.lock.Lock()
self.process[taskId] = &contex{cmd: cmd, statusFile: f}
self.lock.Unlock()
startch <- struct{}{}
cmd.Stderr = os.Stderr
cmd.Stdout = os.Stdout
err = cmd.Start()
if err != nil {
log.Warning(err)
return
}
log.Debug("pid", cmd.Process.Pid)
err = cmd.Wait()
if err != nil {
log.Warning(err)
return
}
}(taskId)
} else {
log.Debug("argc", len(os.Args), os.Args)
log.Debug("send finish state")
self.sendStatusUpdate(taskId, mesos.TaskState_TASK_FINISHED, "")
time.Sleep(10 * time.Second)
driver.Stop()
}
<-startch
}
