#173 Add waiting mechanism for seed job agent (#224)

#173 Add waiting mechanism for the seed job agent

pkg/controller/jenkins/configuration/user/seedjobs/seedjobs.go

@@ -164,6 +164,14 @@ func (s *SeedJobs) EnsureSeedJobs(jenkins *v1alpha2.Jenkins) (done bool, err err
 		if err != nil {
 			return false, err
 		}
+
+		requeue, err := s.waitForSeedJobAgent(AgentName)
+		if err != nil {
+			return false, err
+		}
+		if requeue {
+			return false, nil
+		}
 	} else if len(jenkins.Spec.SeedJobs) == 0 {
 		err := s.Client.Delete(context.TODO(), &appsv1.Deployment{
 			ObjectMeta: metav1.ObjectMeta{
@@ -190,7 +198,7 @@ func (s *SeedJobs) EnsureSeedJobs(jenkins *v1alpha2.Jenkins) (done bool, err err
 	}
 
 	seedJobIDs := s.getAllSeedJobIDs(*jenkins)
-	if done && !reflect.DeepEqual(seedJobIDs, jenkins.Status.CreatedSeedJobs) {
+	if !reflect.DeepEqual(seedJobIDs, jenkins.Status.CreatedSeedJobs) {
 		jenkins.Status.CreatedSeedJobs = seedJobIDs
 		return false, stackerr.WithStack(s.Client.Update(context.TODO(), jenkins))
 	}
@@ -198,6 +206,24 @@ func (s *SeedJobs) EnsureSeedJobs(jenkins *v1alpha2.Jenkins) (done bool, err err
 	return true, nil
 }
 
+func (s SeedJobs) waitForSeedJobAgent(agentName string) (requeue bool, err error) {
+	agent := appsv1.Deployment{}
+	err = s.Client.Get(context.TODO(), types.NamespacedName{Name: agentDeploymentName(*s.Jenkins, agentName), Namespace: s.Jenkins.Namespace}, &agent)
+	if apierrors.IsNotFound(err) {
+		return true, nil
+	} else if err != nil {
+		return true, err
+	}
+
+	noReadyReplicas := agent.Status.ReadyReplicas == 0
+	if noReadyReplicas {
+		s.logger.Info(fmt.Sprintf("Waiting for Seed Job Agent `%s`...", agentName))
+		return true, nil
+	}
+
+	return false, nil
+}
+
 // createJob is responsible for creating jenkins job which configures jenkins seed jobs and deploy keys
 func (s *SeedJobs) createJobs(jenkins *v1alpha2.Jenkins) (requeue bool, err error) {
 	groovyClient := groovy.New(s.jenkinsClient, s.Client, s.logger, jenkins, "seed-jobs", jenkins.Spec.GroovyScripts.Customization)

pkg/controller/jenkins/configuration/user/seedjobs/seedjobs_test.go

@@ -92,6 +92,7 @@ func TestEnsureSeedJobs(t *testing.T) {
 			Client:        fakeClient,
 			ClientSet:     kubernetes.Clientset{},
 			Notifications: nil,
+			Jenkins:       jenkins,
 		}
 
 		seedJobCreatingScript, err := seedJobCreatingGroovyScript(jenkins.Spec.SeedJobs[0])
@@ -135,6 +136,7 @@ func TestEnsureSeedJobs(t *testing.T) {
 			Client:        fakeClient,
 			ClientSet:     kubernetes.Clientset{},
 			Notifications: nil,
+			Jenkins:       jenkins,
 		}
 
 		jenkinsClient.EXPECT().GetNode(AgentName).AnyTimes()