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deployer_controller_test.go
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package deployment
import (
"fmt"
"math/rand"
"reflect"
"sort"
"testing"
fuzz "github.com/google/gofuzz"
"k8s.io/kubernetes/pkg/api/legacyscheme"
"k8s.io/api/core/v1"
kapiv1 "k8s.io/api/core/v1"
kerrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/apimachinery/pkg/api/testing/fuzzer"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/diff"
kinformers "k8s.io/client-go/informers"
kclientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/kubernetes/fake"
clientgotesting "k8s.io/client-go/testing"
"k8s.io/client-go/tools/cache"
kapitesting "k8s.io/kubernetes/pkg/api/testing"
kapi "k8s.io/kubernetes/pkg/apis/core"
kapihelper "k8s.io/kubernetes/pkg/apis/core/helper"
appsapi "github.com/openshift/origin/pkg/apps/apis/apps"
_ "github.com/openshift/origin/pkg/apps/apis/apps/install"
appstest "github.com/openshift/origin/pkg/apps/apis/apps/test"
appsutil "github.com/openshift/origin/pkg/apps/util"
)
var (
env = []kapi.EnvVar{{Name: "ENV1", Value: "VAL1"}}
)
func alwaysReady() bool { return true }
type deploymentController struct {
*DeploymentController
podIndexer cache.Indexer
}
func okDeploymentController(client kclientset.Interface, deployment *v1.ReplicationController, hookPodNames []string, related bool, deployerStatus v1.PodPhase) *deploymentController {
informerFactory := kinformers.NewSharedInformerFactory(client, 0)
rcInformer := informerFactory.Core().V1().ReplicationControllers()
podInformer := informerFactory.Core().V1().Pods()
c := NewDeployerController(rcInformer, podInformer, client, "sa:test", "openshift/origin-deployer", env)
c.podListerSynced = alwaysReady
c.rcListerSynced = alwaysReady
// deployer pod
if deployment != nil {
pod := deployerPod(deployment, "", related)
pod.Status.Phase = deployerStatus
podInformer.Informer().GetIndexer().Add(pod)
}
// hook pods
for _, name := range hookPodNames {
pod := deployerPod(deployment, name, related)
podInformer.Informer().GetIndexer().Add(pod)
}
return &deploymentController{
c,
podInformer.Informer().GetIndexer(),
}
}
func deployerPod(deployment *v1.ReplicationController, alternateName string, related bool) *v1.Pod {
deployerPodName := appsutil.DeployerPodNameForDeployment(deployment.Name)
if len(alternateName) > 0 {
deployerPodName = alternateName
}
deployment.Namespace = "test"
pod := &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: deployerPodName,
Namespace: deployment.Namespace,
Labels: map[string]string{
appsapi.DeployerPodForDeploymentLabel: deployment.Name,
},
Annotations: map[string]string{
appsapi.DeploymentAnnotation: deployment.Name,
},
},
}
if !related {
delete(pod.Annotations, appsapi.DeploymentAnnotation)
}
return pod
}
func okContainer() *v1.Container {
return &v1.Container{
Image: "openshift/origin-deployer",
Command: []string{"/bin/echo", "hello", "world"},
Env: appsutil.CopyApiEnvVarToV1EnvVar(env),
Resources: v1.ResourceRequirements{
Limits: v1.ResourceList{
v1.ResourceName(v1.ResourceCPU): resource.MustParse("10"),
v1.ResourceName(v1.ResourceMemory): resource.MustParse("10G"),
},
},
}
}
func TestMakeDeployerContainer(t *testing.T) {
randSeq := func(n int) string {
b := make([]byte, n)
for i := range b {
b[i] = '0'
}
return string(b)
}
client := &fake.Clientset{}
controller := okDeploymentController(client, nil, nil, true, v1.PodUnknown)
strategy := appstest.OkRollingStrategy()
tests := []struct {
name string
environment []v1.EnvVar
expected []v1.EnvVar
}{
{
name: "simple var should be injected",
environment: []v1.EnvVar{{Name: "FOO", Value: "BAR"}},
expected: []v1.EnvVar{{Name: "FOO", Value: "BAR"}},
},
{
name: "big vars should not be injected",
environment: []v1.EnvVar{{Name: "FOO", Value: randSeq(1001 * 128)}},
expected: []v1.EnvVar{},
},
}
for _, test := range tests {
controller.environment = test.environment
container := controller.makeDeployerContainer(&strategy)
if len(test.expected) == 0 {
if len(container.Env) > 0 {
t.Errorf("%s: expected no variables in container env vars, got %#v", test.name, container.Env)
}
continue
}
if !reflect.DeepEqual(container.Env, test.expected) {
t.Errorf("%s: expected env vars (%#v) does match container env vars (%#v)", test.name, test.expected, container.Env)
}
}
}
// TestHandle_createPodOk ensures that a deployer pod created in response
// to a new deployment is valid.
func TestHandle_createPodOk(t *testing.T) {
var (
updatedDeployment *v1.ReplicationController
createdPod *v1.Pod
expectedContainer = okContainer()
)
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
pod := action.(clientgotesting.CreateAction).GetObject().(*v1.Pod)
createdPod = pod
return true, pod, nil
})
client.AddReactor("patch", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
// Verify new -> pending
config := appstest.OkDeploymentConfig(1)
config.Spec.Strategy = appstest.OkCustomStrategy()
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
deployment.Spec.Template.Spec.NodeSelector = map[string]string{"labelKey1": "labelValue1", "labelKey2": "labelValue2"}
deployment.CreationTimestamp = metav1.Now()
controller := okDeploymentController(client, nil, nil, true, v1.PodUnknown)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if updatedDeployment == nil {
t.Fatalf("expected an updated deployment")
}
if e, a := appsapi.DeploymentStatusPending, appsutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected updated deployment status %s, got %s", e, a)
}
if createdPod == nil {
t.Fatalf("expected a pod to be created")
}
if e := appsutil.DeployerPodNameFor(updatedDeployment); len(e) == 0 {
t.Fatalf("missing deployment pod annotation")
}
if e, a := createdPod.Name, appsutil.DeployerPodNameFor(updatedDeployment); e != a {
t.Fatalf("expected deployment pod annotation %s, got %s", e, a)
}
if e := appsutil.DeploymentNameFor(createdPod); len(e) == 0 {
t.Fatalf("missing deployment annotation")
}
if e, a := updatedDeployment.Name, appsutil.DeploymentNameFor(createdPod); e != a {
t.Fatalf("expected pod deployment annotation %s, got %s", e, a)
}
if e, a := deployment.Spec.Template.Spec.NodeSelector, createdPod.Spec.NodeSelector; !reflect.DeepEqual(e, a) {
t.Fatalf("expected pod NodeSelector %v, got %v", e, a)
}
if createdPod.Spec.ActiveDeadlineSeconds == nil {
t.Fatalf("expected ActiveDeadlineSeconds to be set on the deployer pod")
}
if *createdPod.Spec.ActiveDeadlineSeconds != appsapi.MaxDeploymentDurationSeconds {
t.Fatalf("expected ActiveDeadlineSeconds on the deployer pod to be set to %d; found: %d", appsapi.MaxDeploymentDurationSeconds, *createdPod.Spec.ActiveDeadlineSeconds)
}
actualContainer := createdPod.Spec.Containers[0]
if e, a := expectedContainer.Image, actualContainer.Image; e != a {
t.Fatalf("expected container image %s, got %s", expectedContainer.Image, actualContainer.Image)
}
if e, a := expectedContainer.Command[0], actualContainer.Command[0]; e != a {
t.Fatalf("expected container command %s, got %s", expectedContainer.Command[0], actualContainer.Command[0])
}
if e, a := expectedContainer.Env[0].Name, actualContainer.Env[0].Name; e != a {
t.Fatalf("expected container env name %s, got %s", expectedContainer.Env[0].Name, actualContainer.Env[0].Name)
}
if e, a := expectedContainer.Env[0].Value, actualContainer.Env[0].Value; e != a {
t.Fatalf("expected container env value %s, got %s", expectedContainer.Env[0].Value, actualContainer.Env[0].Value)
}
if e, a := expectedContainer.Resources, actualContainer.Resources; !kapihelper.Semantic.DeepEqual(e, a) {
t.Fatalf("expected container resources %v, got %v", expectedContainer.Resources, actualContainer.Resources)
}
}
// TestHandle_createPodFail ensures that an API failure while creating a
// deployer pod results in a nonfatal error.
func TestHandle_createPodFail(t *testing.T) {
var updatedDeployment *v1.ReplicationController
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
name := action.(clientgotesting.CreateAction).GetObject().(*v1.Pod).Name
return true, nil, fmt.Errorf("failed to create pod %q", name)
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
config := appstest.OkDeploymentConfig(1)
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
deployment.CreationTimestamp = metav1.Now()
controller := okDeploymentController(client, nil, nil, true, v1.PodUnknown)
err := controller.handle(deployment, false)
if err == nil {
t.Fatalf("expected an error")
}
if _, isFatal := err.(fatalError); isFatal {
t.Fatalf("expected a nonfatal error, got a %#v", err)
}
}
// TestHandle_deployerPodAlreadyExists ensures that attempts to create a
// deployer pod which was already created don't result in an error
// (effectively skipping the handling as redundant).
func TestHandle_deployerPodAlreadyExists(t *testing.T) {
tests := []struct {
name string
podPhase v1.PodPhase
expected appsapi.DeploymentStatus
}{
{
name: "pending",
podPhase: v1.PodPending,
expected: appsapi.DeploymentStatusPending,
},
{
name: "running",
podPhase: v1.PodRunning,
expected: appsapi.DeploymentStatusRunning,
},
{
name: "complete",
podPhase: v1.PodFailed,
expected: appsapi.DeploymentStatusFailed,
},
{
name: "failed",
podPhase: v1.PodSucceeded,
expected: appsapi.DeploymentStatusComplete,
},
}
for _, test := range tests {
var updatedDeployment *v1.ReplicationController
config := appstest.OkDeploymentConfig(1)
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
deployment.CreationTimestamp = metav1.Now()
deployerPodName := appsutil.DeployerPodNameForDeployment(deployment.Name)
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
name := action.(clientgotesting.CreateAction).GetObject().(*v1.Pod).Name
return true, nil, kerrors.NewAlreadyExists(kapi.Resource("Pod"), name)
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
controller := okDeploymentController(client, deployment, nil, true, test.podPhase)
if err := controller.handle(deployment, false); err != nil {
t.Errorf("%s: unexpected error: %v", test.name, err)
continue
}
if updatedDeployment.Annotations[appsapi.DeploymentPodAnnotation] != deployerPodName {
t.Errorf("%s: deployment not updated with pod name annotation", test.name)
continue
}
if e, a := string(test.expected), updatedDeployment.Annotations[appsapi.DeploymentStatusAnnotation]; e != a {
t.Errorf("%s: deployment status not updated. Expected %q, got %q", test.name, e, a)
}
}
}
// TestHandle_unrelatedPodAlreadyExists ensures that attempts to create a
// deployer pod, when a pod with the same name but missing annotations results
// a transition to failed.
func TestHandle_unrelatedPodAlreadyExists(t *testing.T) {
var updatedDeployment *v1.ReplicationController
config := appstest.OkDeploymentConfig(1)
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.CreationTimestamp = metav1.Now()
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
name := action.(clientgotesting.CreateAction).GetObject().(*v1.Pod).Name
return true, nil, kerrors.NewAlreadyExists(kapi.Resource("Pod"), name)
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
controller := okDeploymentController(client, deployment, nil, false, v1.PodRunning)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if _, exists := updatedDeployment.Annotations[appsapi.DeploymentPodAnnotation]; exists {
t.Fatalf("deployment updated with pod name annotation")
}
if e, a := appsapi.DeploymentFailedUnrelatedDeploymentExists, updatedDeployment.Annotations[appsapi.DeploymentStatusReasonAnnotation]; e != a {
t.Fatalf("expected reason annotation %s, got %s", e, a)
}
if e, a := appsapi.DeploymentStatusFailed, appsutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
}
// TestHandle_unrelatedPodAlreadyExistsTestScaled ensures that attempts to create a
// deployer pod, when a pod with the same name but be scaled to zero results
// a transition to failed.
func TestHandle_unrelatedPodAlreadyExistsTestScaled(t *testing.T) {
var updatedDeployment *v1.ReplicationController
config := appstest.TestDeploymentConfig(appstest.OkDeploymentConfig(1))
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
deployment.CreationTimestamp = metav1.Now()
one := int32(1)
deployment.Spec.Replicas = &one
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
name := action.(clientgotesting.CreateAction).GetObject().(*v1.Pod).Name
return true, nil, kerrors.NewAlreadyExists(kapi.Resource("Pod"), name)
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
controller := okDeploymentController(client, deployment, nil, false, v1.PodRunning)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if _, exists := updatedDeployment.Annotations[appsapi.DeploymentPodAnnotation]; exists {
t.Fatalf("deployment updated with pod name annotation")
}
if e, a := appsapi.DeploymentFailedUnrelatedDeploymentExists, updatedDeployment.Annotations[appsapi.DeploymentStatusReasonAnnotation]; e != a {
t.Fatalf("expected reason annotation %s, got %s", e, a)
}
if e, a := appsapi.DeploymentStatusFailed, appsutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
if e, a := int32(0), *updatedDeployment.Spec.Replicas; e != a {
t.Fatalf("expected failed deployment to be scaled to zero: %d", a)
}
}
// TestHandle_noop ensures that pending, running, and failed states result in
// no action by the controller (as long as the deployment hasn't been cancelled
// and the deployer pod status is synced with the deployment status).
func TestHandle_noop(t *testing.T) {
tests := []struct {
name string
podPhase v1.PodPhase
deploymentPhase appsapi.DeploymentStatus
}{
{
name: "pending",
podPhase: v1.PodPending,
deploymentPhase: appsapi.DeploymentStatusPending,
},
{
name: "running",
podPhase: v1.PodRunning,
deploymentPhase: appsapi.DeploymentStatusRunning,
},
{
name: "complete",
podPhase: v1.PodFailed,
deploymentPhase: appsapi.DeploymentStatusFailed,
},
}
for _, test := range tests {
client := fake.NewSimpleClientset()
deployment, _ := appsutil.MakeDeploymentV1(appstest.OkDeploymentConfig(1))
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(test.deploymentPhase)
deployment.CreationTimestamp = metav1.Now()
controller := okDeploymentController(client, deployment, nil, true, test.podPhase)
if err := controller.handle(deployment, false); err != nil {
t.Errorf("%s: unexpected error: %v", test.name, err)
continue
}
hasPatch := func(actions []clientgotesting.Action) bool {
for _, a := range actions {
if a.GetVerb() == "patch" {
return true
}
}
return false
}
// Expect only patching for ownerRefs
if len(client.Actions()) != 1 && hasPatch(client.Actions()) {
t.Errorf("%s: unexpected %d actions: %#+v", test.name, len(client.Actions()), client.Actions())
}
}
}
// TestHandle_failedTest ensures that failed test deployments have their
// replicas set to zero.
func TestHandle_failedTest(t *testing.T) {
var updatedDeployment *v1.ReplicationController
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
// Verify successful cleanup
config := appstest.TestDeploymentConfig(appstest.OkDeploymentConfig(1))
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.CreationTimestamp = metav1.Now()
one := int32(1)
deployment.Spec.Replicas = &one
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusRunning)
controller := okDeploymentController(client, deployment, nil, true, v1.PodFailed)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if updatedDeployment == nil {
t.Fatal("deployment not updated")
}
if e, a := int32(0), *updatedDeployment.Spec.Replicas; e != a {
t.Fatalf("expected updated deployment replicas to be %d, got %d", e, a)
}
}
// TestHandle_cleanupPodOk ensures that deployer pods are cleaned up for
// deployments in a completed state.
func TestHandle_cleanupPodOk(t *testing.T) {
hookPods := []string{"pre", "mid", "post"}
deletedPodNames := []string{}
client := &fake.Clientset{}
client.AddReactor("delete", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
name := action.(clientgotesting.DeleteAction).GetName()
deletedPodNames = append(deletedPodNames, name)
return true, nil, nil
})
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected deployment update")
return true, nil, nil
})
// Verify successful cleanup
config := appstest.OkDeploymentConfig(1)
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusComplete)
deployment.CreationTimestamp = metav1.Now()
controller := okDeploymentController(client, deployment, hookPods, true, v1.PodSucceeded)
hookPods = append(hookPods, deployment.Name)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
sort.Strings(hookPods)
sort.Strings(deletedPodNames)
if !reflect.DeepEqual(deletedPodNames, deletedPodNames) {
t.Fatalf("pod deletions - expected: %v, actual: %v", hookPods, deletedPodNames)
}
}
// TestHandle_cleanupPodOkTest ensures that deployer pods are cleaned up for
// deployments in a completed state on test deployment configs, and
// replicas is set back to zero.
func TestHandle_cleanupPodOkTest(t *testing.T) {
hookPods := []string{"pre", "post"}
deletedPodNames := []string{}
var updatedDeployment *v1.ReplicationController
client := &fake.Clientset{}
client.AddReactor("delete", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
name := action.(clientgotesting.DeleteAction).GetName()
deletedPodNames = append(deletedPodNames, name)
return true, nil, nil
})
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
// Verify successful cleanup
config := appstest.TestDeploymentConfig(appstest.OkDeploymentConfig(1))
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.CreationTimestamp = metav1.Now()
one := int32(1)
deployment.Spec.Replicas = &one
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusRunning)
controller := okDeploymentController(client, deployment, hookPods, true, v1.PodSucceeded)
hookPods = append(hookPods, deployment.Name)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
sort.Strings(hookPods)
sort.Strings(deletedPodNames)
if !reflect.DeepEqual(deletedPodNames, deletedPodNames) {
t.Fatalf("pod deletions - expected: %v, actual: %v", hookPods, deletedPodNames)
}
if updatedDeployment == nil {
t.Fatal("deployment not updated")
}
if e, a := int32(0), *updatedDeployment.Spec.Replicas; e != a {
t.Fatalf("expected updated deployment replicas to be %d, got %d", e, a)
}
}
// TestHandle_cleanupPodNoop ensures that an attempt to delete pods is not made
// if the deployer pods are not listed based on a label query
func TestHandle_cleanupPodNoop(t *testing.T) {
client := &fake.Clientset{}
client.AddReactor("delete", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to delete pod")
return true, nil, nil
})
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected deployment update")
return true, nil, nil
})
// Verify no-op
config := appstest.OkDeploymentConfig(1)
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.CreationTimestamp = metav1.Now()
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusComplete)
controller := okDeploymentController(client, deployment, nil, true, v1.PodSucceeded)
pod := deployerPod(deployment, "", true)
pod.Labels[appsapi.DeployerPodForDeploymentLabel] = "unrelated"
controller.podIndexer.Update(pod)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
}
// TestHandle_cleanupPodFail ensures that a failed attempt to clean up the
// deployer pod for a completed deployment results in an actionable error.
func TestHandle_cleanupPodFail(t *testing.T) {
client := &fake.Clientset{}
client.AddReactor("delete", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
return true, nil, kerrors.NewInternalError(fmt.Errorf("deployer pod internal error"))
})
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected deployment update")
return true, nil, nil
})
// Verify error
config := appstest.OkDeploymentConfig(1)
deployment, _ := appsutil.MakeDeploymentV1(config)
deployment.CreationTimestamp = metav1.Now()
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusComplete)
controller := okDeploymentController(client, deployment, nil, true, v1.PodSucceeded)
err := controller.handle(deployment, false)
if err == nil {
t.Fatal("expected an actionable error")
}
if _, isActionable := err.(actionableError); !isActionable {
t.Fatalf("expected an actionable error, got %#v", err)
}
}
// TestHandle_cancelNew ensures that a New cancelled deployment will be transitioned
// to Pending even if the deployer pod is Running.
func TestHandle_cancelNew(t *testing.T) {
var updatedDeployment *v1.ReplicationController
client := &fake.Clientset{}
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, rc, nil
})
deployment, _ := appsutil.MakeDeploymentV1(appstest.OkDeploymentConfig(1))
deployment.CreationTimestamp = metav1.Now()
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
deployment.Annotations[appsapi.DeploymentCancelledAnnotation] = appsapi.DeploymentCancelledAnnotationValue
controller := okDeploymentController(client, deployment, nil, true, v1.PodRunning)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if e, a := appsapi.DeploymentStatusPending, appsutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
}
// TestHandle_cleanupNewWithDeployers ensures that we will try to cleanup deployer pods
// for a cancelled deployment.
func TestHandle_cleanupNewWithDeployers(t *testing.T) {
var updatedDeployment *v1.ReplicationController
deletedDeployer := false
deployment, _ := appsutil.MakeDeploymentV1(appstest.OkDeploymentConfig(1))
deployment.CreationTimestamp = metav1.Now()
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(appsapi.DeploymentStatusNew)
deployment.Annotations[appsapi.DeploymentCancelledAnnotation] = appsapi.DeploymentCancelledAnnotationValue
client := &fake.Clientset{}
client.AddReactor("delete", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
deletedDeployer = true
return true, nil, nil
})
client.AddReactor("create", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
t.Fatalf("unexpected call to create pod")
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
return true, nil, nil
})
controller := okDeploymentController(client, deployment, nil, true, v1.PodRunning)
if err := controller.handle(deployment, false); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if e, a := appsapi.DeploymentStatusPending, appsutil.DeploymentStatusFor(updatedDeployment); e != a {
t.Fatalf("expected deployment status %s, got %s", e, a)
}
if !deletedDeployer {
t.Fatalf("expected deployer delete")
}
}
// TestHandle_cleanupPostNew ensures that deployer pods are deleted
// for cancelled deployments in all post-New phases.
func TestHandle_cleanupPostNew(t *testing.T) {
hookPods := []string{"pre", "post"}
tests := []struct {
name string
deploymentPhase appsapi.DeploymentStatus
podPhase v1.PodPhase
expected int
}{
{
name: "pending",
deploymentPhase: appsapi.DeploymentStatusPending,
podPhase: v1.PodPending,
expected: len(hookPods) + 1,
},
{
name: "running",
deploymentPhase: appsapi.DeploymentStatusRunning,
podPhase: v1.PodRunning,
expected: len(hookPods) + 1,
},
{
name: "failed",
deploymentPhase: appsapi.DeploymentStatusFailed,
podPhase: v1.PodFailed,
expected: len(hookPods) + 1,
},
{
name: "complete",
deploymentPhase: appsapi.DeploymentStatusComplete,
podPhase: v1.PodSucceeded,
expected: len(hookPods) + 1,
},
}
for _, test := range tests {
deletedPods := 0
client := &fake.Clientset{}
client.AddReactor("delete", "pods", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
deletedPods++
return true, nil, nil
})
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
// None of these tests should transition the phase.
t.Errorf("%s: unexpected call to update a deployment", test.name)
return true, nil, nil
})
deployment, _ := appsutil.MakeDeploymentV1(appstest.OkDeploymentConfig(1))
deployment.CreationTimestamp = metav1.Now()
deployment.Annotations[appsapi.DeploymentCancelledAnnotation] = appsapi.DeploymentCancelledAnnotationValue
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(test.deploymentPhase)
controller := okDeploymentController(client, deployment, hookPods, true, test.podPhase)
if err := controller.handle(deployment, false); err != nil {
t.Errorf("%s: unexpected error: %v", test.name, err)
continue
}
if e, a := test.expected, deletedPods; e != a {
t.Errorf("%s: expected %d deleted pods, got %d", test.name, e, a)
}
}
}
// TestHandle_deployerPodDisappeared ensures that a pending/running deployment
// is failed when its deployer pod vanishes. Ensure that pending deployments
// wont fail instantly on a missing deployer pod because it may take some time
// for it to appear in the pod cache.
func TestHandle_deployerPodDisappeared(t *testing.T) {
tests := []struct {
name string
phase appsapi.DeploymentStatus
willBeDropped bool
shouldRetry bool
}{
{
name: "pending - retry",
phase: appsapi.DeploymentStatusPending,
willBeDropped: false,
shouldRetry: true,
},
{
name: "pending - fail",
phase: appsapi.DeploymentStatusPending,
willBeDropped: true,
shouldRetry: false,
},
{
name: "running",
phase: appsapi.DeploymentStatusRunning,
},
}
for _, test := range tests {
var updatedDeployment *v1.ReplicationController
updateCalled := false
client := &fake.Clientset{}
client.AddReactor("update", "replicationcontrollers", func(action clientgotesting.Action) (handled bool, ret runtime.Object, err error) {
rc := action.(clientgotesting.UpdateAction).GetObject().(*v1.ReplicationController)
updatedDeployment = rc
updateCalled = true
return true, nil, nil
})
deployment, err := appsutil.MakeDeploymentV1(appstest.OkDeploymentConfig(1))
if err != nil {
t.Errorf("%s: unexpected error: %v", test.name, err)
continue
}
deployment.Annotations[appsapi.DeploymentStatusAnnotation] = string(test.phase)
deployment.CreationTimestamp = metav1.Now()
updatedDeployment = deployment
controller := okDeploymentController(client, nil, nil, true, v1.PodUnknown)
err = controller.handle(deployment, test.willBeDropped)
if !test.shouldRetry && err != nil {
t.Errorf("%s: unexpected error: %v", test.name, err)
continue
}
if test.shouldRetry && err == nil {
t.Errorf("%s: expected an error so that the deployment can be retried, got none", test.name)
continue
}
if !test.shouldRetry && !updateCalled {
t.Errorf("%s: expected update", test.name)
continue
}
if test.shouldRetry && updateCalled {
t.Errorf("%s: unexpected update", test.name)
continue
}
gotStatus := appsutil.DeploymentStatusFor(updatedDeployment)
if !test.shouldRetry && appsapi.DeploymentStatusFailed != gotStatus {
t.Errorf("%s: expected deployment status %q, got %q", test.name, appsapi.DeploymentStatusFailed, gotStatus)
continue
}
if test.shouldRetry && appsapi.DeploymentStatusPending != gotStatus {
t.Errorf("%s: expected deployment status %q, got %q", test.name, appsapi.DeploymentStatusPending, gotStatus)
continue
}
}
}
// TestHandle_transitionFromDeployer ensures that pod status drives deployment status.
func TestHandle_transitionFromDeployer(t *testing.T) {
tests := []struct {
name string
podPhase v1.PodPhase
deploymentPhase appsapi.DeploymentStatus
expected appsapi.DeploymentStatus
}{
{
name: "New -> Pending",
podPhase: v1.PodPending,
deploymentPhase: appsapi.DeploymentStatusNew,
expected: appsapi.DeploymentStatusPending,
},
{
name: "New -> Running",
podPhase: v1.PodRunning,
deploymentPhase: appsapi.DeploymentStatusNew,
expected: appsapi.DeploymentStatusRunning,
},
{
name: "New -> Complete",
podPhase: v1.PodSucceeded,
deploymentPhase: appsapi.DeploymentStatusNew,
expected: appsapi.DeploymentStatusComplete,
},
{
name: "New -> Failed",
podPhase: v1.PodFailed,
deploymentPhase: appsapi.DeploymentStatusNew,
expected: appsapi.DeploymentStatusFailed,
},
{
name: "Pending -> Running",
podPhase: v1.PodRunning,
deploymentPhase: appsapi.DeploymentStatusPending,
expected: appsapi.DeploymentStatusRunning,
},
{
name: "Pending -> Complete",