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Update deployment health on failed allocations only if health is unset #5645

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merged 3 commits into from
May 3, 2019
Merged

Update deployment health on failed allocations only if health is unset #5645

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b4ecb44
Update deployment health on failed allocations only if health is unset
preetapan May 3, 2019
96d6902
Remove unnecessary boolean clause
schmichael May 3, 2019
5c43a16
Fix comment
schmichael May 3, 2019
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3 changes: 2 additions & 1 deletion client/allocrunner/alloc_runner.go
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Expand Up @@ -553,8 +553,9 @@ func (ar *allocRunner) clientAlloc(taskStates map[string]*structs.TaskState) *st

// If we are part of a deployment and the task has failed, mark the
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// alloc as unhealthy. This guards against the watcher not be started.
// If the health status is already set then terminal allocations should not
if a.ClientStatus == structs.AllocClientStatusFailed &&
alloc.DeploymentID != "" && !a.DeploymentStatus.IsUnhealthy() {
alloc.DeploymentID != "" && !a.DeploymentStatus.HasHealth() && !a.DeploymentStatus.IsUnhealthy() {
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a.DeploymentStatus = &structs.AllocDeploymentStatus{
Healthy: helper.BoolToPtr(false),
}
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52 changes: 51 additions & 1 deletion client/allocrunner/alloc_runner_test.go
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Expand Up @@ -780,7 +780,7 @@ func TestAllocRunner_HandlesArtifactFailure(t *testing.T) {

// Test that alloc runner kills tasks in task group when another task fails
func TestAllocRunner_TaskFailed_KillTG(t *testing.T) {
alloc := mock.BatchAlloc()
alloc := mock.Alloc()
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I modified this existing test to change it to use a service job rather than batch so that it will get the DeploymentStatus field. Could use feedback on whether this is the best way to test this.

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I think this is asserting reasonable things, but I think it would have passed before?

Restoring a Failed alloc with a Healthy DeploymentStatus and asserting ar.AllocState().DeploymentStatus.IsHealthy() would have failed before but worked now I think.

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@schmichael is there an existing test you could point me to as an example? I am not able to get this test's DeploymentStatus to become healthy through the mock driver.

tr := alloc.AllocatedResources.Tasks[alloc.Job.TaskGroups[0].Tasks[0].Name]
alloc.Job.TaskGroups[0].RestartPolicy.Attempts = 0

Expand All @@ -792,6 +792,22 @@ func TestAllocRunner_TaskFailed_KillTG(t *testing.T) {
task.Config = map[string]interface{}{
"run_for": "10s",
}
// Set a service with check
task.Services = []*structs.Service{
{
Name: "fakservice",
PortLabel: "http",
Checks: []*structs.ServiceCheck{
{
Name: "fakecheck",
Type: structs.ServiceCheckScript,
Command: "true",
Interval: 30 * time.Second,
Timeout: 5 * time.Second,
},
},
},
}

task2 := alloc.Job.TaskGroups[0].Tasks[0].Copy()
task2.Name = "task 2"
Expand All @@ -803,8 +819,38 @@ func TestAllocRunner_TaskFailed_KillTG(t *testing.T) {
alloc.AllocatedResources.Tasks[task.Name] = tr
alloc.AllocatedResources.Tasks[task2.Name] = tr

// Make the alloc be part of a deployment
alloc.DeploymentID = uuid.Generate()
alloc.Job.TaskGroups[0].Update = structs.DefaultUpdateStrategy.Copy()
alloc.Job.TaskGroups[0].Update.HealthCheck = structs.UpdateStrategyHealthCheck_Checks
alloc.Job.TaskGroups[0].Update.MaxParallel = 1
alloc.Job.TaskGroups[0].Update.MinHealthyTime = 10 * time.Millisecond
alloc.Job.TaskGroups[0].Update.HealthyDeadline = 2 * time.Second

checkHealthy := &api.AgentCheck{
CheckID: uuid.Generate(),
Status: api.HealthPassing,
}

conf, cleanup := testAllocRunnerConfig(t, alloc)
defer cleanup()

consulClient := conf.Consul.(*cconsul.MockConsulServiceClient)
consulClient.AllocRegistrationsFn = func(allocID string) (*consul.AllocRegistration, error) {
return &consul.AllocRegistration{
Tasks: map[string]*consul.TaskRegistration{
task.Name: {
Services: map[string]*consul.ServiceRegistration{
"123": {
Service: &api.AgentService{Service: "fakeservice"},
Checks: []*api.AgentCheck{checkHealthy},
},
},
},
},
}, nil
}

ar, err := NewAllocRunner(conf)
require.NoError(t, err)
defer destroy(ar)
Expand Down Expand Up @@ -850,6 +896,10 @@ func TestAllocRunner_TaskFailed_KillTG(t *testing.T) {
return false, fmt.Errorf("task2 should have failed")
}

if !last.DeploymentStatus.HasHealth() {
return false, fmt.Errorf("Expected deployment health to be non nil")
}

return true, nil
}, func(err error) {
require.Fail(t, "err: %v", err)
Expand Down