// TestExecutorLaunchAndKillTask ensures that the executor is able to launch
// and kill tasks while properly bookkeping its tasks.
func TestExecutorLaunchAndKillTask(t *testing.T) {
// create a fake pod watch. We use that below to submit new pods to the scheduler
podListWatch := NewMockPodsListWatch(api.PodList{})
// create fake apiserver
testApiServer := NewTestServer(t, api.NamespaceDefault, &podListWatch.list)
defer testApiServer.server.Close()
mockDriver := &MockExecutorDriver{}
updates := make(chan interface{}, 1024)
config := Config{
Docker: dockertools.ConnectToDockerOrDie("fake://"),
Updates: updates,
APIClient: client.NewOrDie(&client.Config{
Host: testApiServer.server.URL,
Version: testapi.Version(),
}),
Qinglet: &fakeQinglet{
Qinglet: &qinglet.Qinglet{},
hostIP: net.IPv4(127, 0, 0, 1),
},
PodStatusFunc: func(kl QingletInterface, pod *api.Pod) (*api.PodStatus, error) {
return &api.PodStatus{
ContainerStatuses: []api.ContainerStatus{
{
Name: "foo",
State: api.ContainerState{
Running: &api.ContainerStateRunning{},
},
},
},
Phase: api.PodRunning,
}, nil
},
}
executor := New(config)
executor.Init(mockDriver)
executor.Registered(mockDriver, nil, nil, nil)
select {
case <-updates:
case <-time.After(time.Second):
t.Fatalf("Executor should send an intial update on Registration")
}
pod := NewTestPod(1)
podTask, err := podtask.New(api.NewDefaultContext(), "",
*pod, &mesosproto.ExecutorInfo{})
assert.Equal(t, nil, err, "must be able to create a task from a pod")
taskInfo := podTask.BuildTaskInfo()
data, err := testapi.Codec().Encode(pod)
assert.Equal(t, nil, err, "must be able to encode a pod's spec data")
taskInfo.Data = data
var statusUpdateCalls sync.WaitGroup
statusUpdateDone := func(_ mock.Arguments) { statusUpdateCalls.Done() }
statusUpdateCalls.Add(1)
mockDriver.On(
"SendStatusUpdate",
mesosproto.TaskState_TASK_STARTING,
).Return(mesosproto.Status_DRIVER_RUNNING, nil).Run(statusUpdateDone).Once()
statusUpdateCalls.Add(1)
mockDriver.On(
"SendStatusUpdate",
mesosproto.TaskState_TASK_RUNNING,
).Return(mesosproto.Status_DRIVER_RUNNING, nil).Run(statusUpdateDone).Once()
executor.LaunchTask(mockDriver, taskInfo)
assertext.EventuallyTrue(t, 5*time.Second, func() bool {
executor.lock.Lock()
defer executor.lock.Unlock()
return len(executor.tasks) == 1 && len(executor.pods) == 1
}, "executor must be able to create a task and a pod")
gotPodUpdate := false
select {
case m := <-updates:
update, ok := m.(qinglet.PodUpdate)
if ok && len(update.Pods) == 1 {
gotPodUpdate = true
}
case <-time.After(time.Second):
}
assert.Equal(t, true, gotPodUpdate,
"the executor should send an update about a new pod to "+
"the updates chan when creating a new one.")
// Allow some time for asynchronous requests to the driver.
finished := kmruntime.After(statusUpdateCalls.Wait)
select {
case <-finished:
case <-time.After(5 * time.Second):
t.Fatalf("timed out waiting for status update calls to finish")
}
statusUpdateCalls.Add(1)
mockDriver.On(
"SendStatusUpdate",
mesosproto.TaskState_TASK_KILLED,
).Return(mesosproto.Status_DRIVER_RUNNING, nil).Run(statusUpdateDone).Once()
executor.KillTask(mockDriver, taskInfo.TaskId)
assertext.EventuallyTrue(t, 5*time.Second, func() bool {
executor.lock.Lock()
defer executor.lock.Unlock()
return len(executor.tasks) == 0 && len(executor.pods) == 0
}, "executor must be able to kill a created task and pod")
// Allow some time for asynchronous requests to the driver.
finished = kmruntime.After(statusUpdateCalls.Wait)
select {
case <-finished:
case <-time.After(5 * time.Second):
t.Fatalf("timed out waiting for status update calls to finish")
}
mockDriver.AssertExpectations(t)
}
// TestExecutorFrameworkMessage ensures that the executor is able to
// handle messages from the framework, specifically about lost tasks
// and Kamikaze. When a task is lost, the executor needs to clean up
// its state. When a Kamikaze message is received, the executor should
// attempt suicide.
func TestExecutorFrameworkMessage(t *testing.T) {
// create fake apiserver
podListWatch := NewMockPodsListWatch(api.PodList{})
testApiServer := NewTestServer(t, api.NamespaceDefault, &podListWatch.list)
defer testApiServer.server.Close()
// create and start executor
mockDriver := &MockExecutorDriver{}
qingletFinished := make(chan struct{})
config := Config{
Docker: dockertools.ConnectToDockerOrDie("fake://"),
Updates: make(chan interface{}, 1024),
APIClient: client.NewOrDie(&client.Config{
Host: testApiServer.server.URL,
Version: testapi.Version(),
}),
Qinglet: &fakeQinglet{
Qinglet: &qinglet.Qinglet{},
hostIP: net.IPv4(127, 0, 0, 1),
},
PodStatusFunc: func(kl QingletInterface, pod *api.Pod) (*api.PodStatus, error) {
return &api.PodStatus{
ContainerStatuses: []api.ContainerStatus{
{
Name: "foo",
State: api.ContainerState{
Running: &api.ContainerStateRunning{},
},
},
},
Phase: api.PodRunning,
}, nil
},
ShutdownAlert: func() {
close(qingletFinished)
},
QingletFinished: qingletFinished,
}
executor := New(config)
executor.Init(mockDriver)
executor.Registered(mockDriver, nil, nil, nil)
executor.FrameworkMessage(mockDriver, "test framework message")
// set up a pod to then lose
pod := NewTestPod(1)
podTask, _ := podtask.New(api.NewDefaultContext(), "foo",
*pod, &mesosproto.ExecutorInfo{})
taskInfo := podTask.BuildTaskInfo()
data, _ := testapi.Codec().Encode(pod)
taskInfo.Data = data
mockDriver.On(
"SendStatusUpdate",
mesosproto.TaskState_TASK_STARTING,
).Return(mesosproto.Status_DRIVER_RUNNING, nil).Once()
called := make(chan struct{})
mockDriver.On(
"SendStatusUpdate",
mesosproto.TaskState_TASK_RUNNING,
).Return(mesosproto.Status_DRIVER_RUNNING, nil).Run(func(_ mock.Arguments) { close(called) }).Once()
executor.LaunchTask(mockDriver, taskInfo)
// waiting until the pod is really running b/c otherwise a TASK_FAILED could be
// triggered by the asynchronously running _launchTask, __launchTask methods
// when removing the task from k.tasks through the "task-lost:foo" message below.
select {
case <-called:
case <-time.After(5 * time.Second):
t.Fatalf("timed out waiting for SendStatusUpdate for the running task")
}
// send task-lost message for it
called = make(chan struct{})
mockDriver.On(
"SendStatusUpdate",
mesosproto.TaskState_TASK_LOST,
).Return(mesosproto.Status_DRIVER_RUNNING, nil).Run(func(_ mock.Arguments) { close(called) }).Once()
executor.FrameworkMessage(mockDriver, "task-lost:foo")
assertext.EventuallyTrue(t, 5*time.Second, func() bool {
executor.lock.Lock()
defer executor.lock.Unlock()
return len(executor.tasks) == 0 && len(executor.pods) == 0
}, "executor must be able to kill a created task and pod")
select {
case <-called:
case <-time.After(5 * time.Second):
t.Fatalf("timed out waiting for SendStatusUpdate")
}
mockDriver.On("Stop").Return(mesosproto.Status_DRIVER_STOPPED, nil).Once()
executor.FrameworkMessage(mockDriver, messages.Kamikaze)
assert.Equal(t, true, executor.isDone(),
"executor should have shut down after receiving a Kamikaze message")
mockDriver.AssertExpectations(t)
}
func (k *k8smScheduler) createPodTask(ctx api.Context, pod *api.Pod) (*podtask.T, error) {
return podtask.New(ctx, "", *pod, k.internal.executor)
}