346 lines
8.9 KiB
Go
346 lines
8.9 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package deployment
|
|
|
|
import (
|
|
"reflect"
|
|
"testing"
|
|
"time"
|
|
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/api/testapi"
|
|
"k8s.io/kubernetes/pkg/api/unversioned"
|
|
"k8s.io/kubernetes/pkg/apis/extensions"
|
|
"k8s.io/kubernetes/pkg/client/testing/fake"
|
|
"k8s.io/kubernetes/pkg/client/unversioned/testclient/simple"
|
|
"k8s.io/kubernetes/pkg/runtime"
|
|
)
|
|
|
|
func newPod(now time.Time, ready bool, beforeSec int) api.Pod {
|
|
conditionStatus := api.ConditionFalse
|
|
if ready {
|
|
conditionStatus = api.ConditionTrue
|
|
}
|
|
return api.Pod{
|
|
Status: api.PodStatus{
|
|
Conditions: []api.PodCondition{
|
|
{
|
|
Type: api.PodReady,
|
|
LastTransitionTime: unversioned.NewTime(now.Add(-1 * time.Duration(beforeSec) * time.Second)),
|
|
Status: conditionStatus,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
func TestGetReadyPodsCount(t *testing.T) {
|
|
now := time.Now()
|
|
tests := []struct {
|
|
pods []api.Pod
|
|
minReadySeconds int
|
|
expected int
|
|
}{
|
|
{
|
|
[]api.Pod{
|
|
newPod(now, true, 0),
|
|
newPod(now, true, 2),
|
|
newPod(now, false, 1),
|
|
},
|
|
1,
|
|
1,
|
|
},
|
|
{
|
|
[]api.Pod{
|
|
newPod(now, true, 2),
|
|
newPod(now, true, 11),
|
|
newPod(now, true, 5),
|
|
},
|
|
10,
|
|
1,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
if count := getReadyPodsCount(test.pods, test.minReadySeconds); count != test.expected {
|
|
t.Errorf("Pods = %#v, minReadySeconds = %d, expected %d, got %d", test.pods, test.minReadySeconds, test.expected, count)
|
|
}
|
|
}
|
|
}
|
|
|
|
// generatePodFromRC creates a pod, with the input rc's selector and its template
|
|
func generatePodFromRC(rc api.ReplicationController) api.Pod {
|
|
return api.Pod{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Labels: rc.Spec.Selector,
|
|
},
|
|
Spec: rc.Spec.Template.Spec,
|
|
}
|
|
}
|
|
|
|
func generatePod(labels map[string]string, image string) api.Pod {
|
|
return api.Pod{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Labels: labels,
|
|
},
|
|
Spec: api.PodSpec{
|
|
Containers: []api.Container{
|
|
{
|
|
Name: image,
|
|
Image: image,
|
|
ImagePullPolicy: api.PullAlways,
|
|
TerminationMessagePath: api.TerminationMessagePathDefault,
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
func generateRCWithLabel(labels map[string]string, image string) api.ReplicationController {
|
|
return api.ReplicationController{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: api.SimpleNameGenerator.GenerateName("rc"),
|
|
Labels: labels,
|
|
},
|
|
Spec: api.ReplicationControllerSpec{
|
|
Replicas: 1,
|
|
Selector: labels,
|
|
Template: &api.PodTemplateSpec{
|
|
Spec: api.PodSpec{
|
|
Containers: []api.Container{
|
|
{
|
|
Name: image,
|
|
Image: image,
|
|
ImagePullPolicy: api.PullAlways,
|
|
TerminationMessagePath: api.TerminationMessagePathDefault,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
// generateRC creates a replication controller, with the input deployment's template as its template
|
|
func generateRC(deployment extensions.Deployment) api.ReplicationController {
|
|
template := GetNewRCTemplate(deployment)
|
|
return api.ReplicationController{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: api.SimpleNameGenerator.GenerateName("rc"),
|
|
Labels: template.Labels,
|
|
},
|
|
Spec: api.ReplicationControllerSpec{
|
|
Template: &template,
|
|
Selector: template.Labels,
|
|
},
|
|
}
|
|
}
|
|
|
|
// generateDeployment creates a deployment, with the input image as its template
|
|
func generateDeployment(image string) extensions.Deployment {
|
|
podLabels := map[string]string{"name": image}
|
|
terminationSec := int64(30)
|
|
return extensions.Deployment{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Name: image,
|
|
},
|
|
Spec: extensions.DeploymentSpec{
|
|
Replicas: 1,
|
|
Selector: podLabels,
|
|
UniqueLabelKey: "deployment.kubernetes.io/podTemplateHash",
|
|
Template: api.PodTemplateSpec{
|
|
ObjectMeta: api.ObjectMeta{
|
|
Labels: podLabels,
|
|
},
|
|
Spec: api.PodSpec{
|
|
Containers: []api.Container{
|
|
{
|
|
Name: image,
|
|
Image: image,
|
|
ImagePullPolicy: api.PullAlways,
|
|
TerminationMessagePath: api.TerminationMessagePathDefault,
|
|
},
|
|
},
|
|
DNSPolicy: api.DNSClusterFirst,
|
|
TerminationGracePeriodSeconds: &terminationSec,
|
|
RestartPolicy: api.RestartPolicyAlways,
|
|
SecurityContext: &api.PodSecurityContext{},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
func TestGetNewRC(t *testing.T) {
|
|
newDeployment := generateDeployment("nginx")
|
|
newRC := generateRC(newDeployment)
|
|
|
|
tests := []struct {
|
|
test string
|
|
rcList api.ReplicationControllerList
|
|
expected *api.ReplicationController
|
|
}{
|
|
{
|
|
"No new RC",
|
|
api.ReplicationControllerList{
|
|
Items: []api.ReplicationController{
|
|
generateRC(generateDeployment("foo")),
|
|
generateRC(generateDeployment("bar")),
|
|
},
|
|
},
|
|
nil,
|
|
},
|
|
{
|
|
"Has new RC",
|
|
api.ReplicationControllerList{
|
|
Items: []api.ReplicationController{
|
|
generateRC(generateDeployment("foo")),
|
|
generateRC(generateDeployment("bar")),
|
|
generateRC(generateDeployment("abc")),
|
|
newRC,
|
|
generateRC(generateDeployment("xyz")),
|
|
},
|
|
},
|
|
&newRC,
|
|
},
|
|
}
|
|
|
|
ns := api.NamespaceDefault
|
|
for _, test := range tests {
|
|
c := &simple.Client{
|
|
Request: simple.Request{
|
|
Method: "GET",
|
|
Path: testapi.Default.ResourcePath("replicationControllers", ns, ""),
|
|
},
|
|
Response: simple.Response{
|
|
StatusCode: 200,
|
|
Body: &test.rcList,
|
|
},
|
|
}
|
|
rc, err := GetNewRC(newDeployment, c.Setup(t).Clientset)
|
|
if err != nil {
|
|
t.Errorf("In test case %s, got unexpected error %v", test.test, err)
|
|
}
|
|
if !api.Semantic.DeepEqual(rc, test.expected) {
|
|
t.Errorf("In test case %s, expected %+v, got %+v", test.test, test.expected, rc)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetOldRCs(t *testing.T) {
|
|
newDeployment := generateDeployment("nginx")
|
|
newRC := generateRC(newDeployment)
|
|
newPod := generatePodFromRC(newRC)
|
|
|
|
// create 2 old deployments and related rcs/pods, with the same labels but different template
|
|
oldDeployment := generateDeployment("nginx")
|
|
oldDeployment.Spec.Template.Spec.Containers[0].Name = "nginx-old-1"
|
|
oldRC := generateRC(oldDeployment)
|
|
oldPod := generatePodFromRC(oldRC)
|
|
oldDeployment2 := generateDeployment("nginx")
|
|
oldDeployment2.Spec.Template.Spec.Containers[0].Name = "nginx-old-2"
|
|
oldRC2 := generateRC(oldDeployment2)
|
|
oldPod2 := generatePodFromRC(oldRC2)
|
|
|
|
// create 1 rc that existed before the deployment, with the same labels as the deployment
|
|
existedPod := generatePod(newDeployment.Spec.Selector, "foo")
|
|
existedRC := generateRCWithLabel(newDeployment.Spec.Selector, "foo")
|
|
|
|
tests := []struct {
|
|
test string
|
|
objs []runtime.Object
|
|
expected []*api.ReplicationController
|
|
}{
|
|
{
|
|
"No old RCs",
|
|
[]runtime.Object{
|
|
&api.PodList{
|
|
Items: []api.Pod{
|
|
generatePod(newDeployment.Spec.Selector, "foo"),
|
|
generatePod(newDeployment.Spec.Selector, "bar"),
|
|
newPod,
|
|
},
|
|
},
|
|
&api.ReplicationControllerList{
|
|
Items: []api.ReplicationController{
|
|
generateRC(generateDeployment("foo")),
|
|
newRC,
|
|
generateRC(generateDeployment("bar")),
|
|
},
|
|
},
|
|
},
|
|
[]*api.ReplicationController{},
|
|
},
|
|
{
|
|
"Has old RC",
|
|
[]runtime.Object{
|
|
&api.PodList{
|
|
Items: []api.Pod{
|
|
oldPod,
|
|
oldPod2,
|
|
generatePod(map[string]string{"name": "bar"}, "bar"),
|
|
generatePod(map[string]string{"name": "xyz"}, "xyz"),
|
|
existedPod,
|
|
generatePod(newDeployment.Spec.Selector, "abc"),
|
|
},
|
|
},
|
|
&api.ReplicationControllerList{
|
|
Items: []api.ReplicationController{
|
|
oldRC2,
|
|
oldRC,
|
|
existedRC,
|
|
newRC,
|
|
generateRCWithLabel(map[string]string{"name": "xyz"}, "xyz"),
|
|
generateRCWithLabel(map[string]string{"name": "bar"}, "bar"),
|
|
},
|
|
},
|
|
},
|
|
[]*api.ReplicationController{&oldRC, &oldRC2, &existedRC},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
rcs, _, err := GetOldRCs(newDeployment, fake.NewSimpleClientset(test.objs...))
|
|
if err != nil {
|
|
t.Errorf("In test case %s, got unexpected error %v", test.test, err)
|
|
}
|
|
if !equal(rcs, test.expected) {
|
|
t.Errorf("In test case %q, expected %v, got %v", test.test, test.expected, rcs)
|
|
}
|
|
}
|
|
}
|
|
|
|
// equal compares the equality of two rc slices regardless of their ordering
|
|
func equal(rcs1, rcs2 []*api.ReplicationController) bool {
|
|
if reflect.DeepEqual(rcs1, rcs2) {
|
|
return true
|
|
}
|
|
if rcs1 == nil || rcs2 == nil || len(rcs1) != len(rcs2) {
|
|
return false
|
|
}
|
|
count := 0
|
|
for _, rc1 := range rcs1 {
|
|
for _, rc2 := range rcs2 {
|
|
if reflect.DeepEqual(rc1, rc2) {
|
|
count++
|
|
break
|
|
}
|
|
}
|
|
}
|
|
return count == len(rcs1)
|
|
}
|