mirror of https://github.com/k3s-io/k3s
1327 lines
38 KiB
Go
1327 lines
38 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"fmt"
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"math/rand"
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"reflect"
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"sort"
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"strconv"
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"testing"
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"time"
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"k8s.io/api/core/v1"
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extensions "k8s.io/api/extensions/v1beta1"
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apiequality "k8s.io/apimachinery/pkg/api/equality"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/intstr"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/kubernetes/scheme"
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core "k8s.io/client-go/testing"
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apiv1 "k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/controller"
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)
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func addListRSReactor(fakeClient *fake.Clientset, obj runtime.Object) *fake.Clientset {
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fakeClient.AddReactor("list", "replicasets", func(action core.Action) (handled bool, ret runtime.Object, err error) {
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return true, obj, nil
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})
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return fakeClient
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}
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func addListPodsReactor(fakeClient *fake.Clientset, obj runtime.Object) *fake.Clientset {
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fakeClient.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
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return true, obj, nil
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})
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return fakeClient
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}
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func addGetRSReactor(fakeClient *fake.Clientset, obj runtime.Object) *fake.Clientset {
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rsList, ok := obj.(*extensions.ReplicaSetList)
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fakeClient.AddReactor("get", "replicasets", func(action core.Action) (handled bool, ret runtime.Object, err error) {
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name := action.(core.GetAction).GetName()
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if ok {
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for _, rs := range rsList.Items {
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if rs.Name == name {
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return true, &rs, nil
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}
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}
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}
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return false, nil, fmt.Errorf("could not find the requested replica set: %s", name)
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})
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return fakeClient
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}
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func addUpdateRSReactor(fakeClient *fake.Clientset) *fake.Clientset {
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fakeClient.AddReactor("update", "replicasets", func(action core.Action) (handled bool, ret runtime.Object, err error) {
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obj := action.(core.UpdateAction).GetObject().(*extensions.ReplicaSet)
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return true, obj, nil
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})
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return fakeClient
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}
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func addUpdatePodsReactor(fakeClient *fake.Clientset) *fake.Clientset {
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fakeClient.AddReactor("update", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
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obj := action.(core.UpdateAction).GetObject().(*v1.Pod)
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return true, obj, nil
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})
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return fakeClient
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}
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func newPod(now time.Time, ready bool, beforeSec int) v1.Pod {
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conditionStatus := v1.ConditionFalse
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if ready {
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conditionStatus = v1.ConditionTrue
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}
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return v1.Pod{
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Status: v1.PodStatus{
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Conditions: []v1.PodCondition{
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{
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Type: v1.PodReady,
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LastTransitionTime: metav1.NewTime(now.Add(-1 * time.Duration(beforeSec) * time.Second)),
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Status: conditionStatus,
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},
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},
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},
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}
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}
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func newRSControllerRef(rs *extensions.ReplicaSet) *metav1.OwnerReference {
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isController := true
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return &metav1.OwnerReference{
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APIVersion: "extensions/v1beta1",
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Kind: "ReplicaSet",
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Name: rs.GetName(),
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UID: rs.GetUID(),
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Controller: &isController,
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}
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}
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// generatePodFromRS creates a pod, with the input ReplicaSet's selector and its template
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func generatePodFromRS(rs extensions.ReplicaSet) v1.Pod {
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return v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: rs.Labels,
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OwnerReferences: []metav1.OwnerReference{*newRSControllerRef(&rs)},
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},
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Spec: rs.Spec.Template.Spec,
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}
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}
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func generatePod(labels map[string]string, image string) v1.Pod {
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return v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Labels: labels,
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: image,
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Image: image,
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ImagePullPolicy: v1.PullAlways,
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TerminationMessagePath: v1.TerminationMessagePathDefault,
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},
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},
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},
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}
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}
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func generateRSWithLabel(labels map[string]string, image string) extensions.ReplicaSet {
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return extensions.ReplicaSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: apiv1.SimpleNameGenerator.GenerateName("replicaset"),
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Labels: labels,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: func(i int32) *int32 { return &i }(1),
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Selector: &metav1.LabelSelector{MatchLabels: labels},
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: labels,
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: image,
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Image: image,
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ImagePullPolicy: v1.PullAlways,
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TerminationMessagePath: v1.TerminationMessagePathDefault,
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},
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},
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},
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},
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},
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}
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}
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func newDControllerRef(d *extensions.Deployment) *metav1.OwnerReference {
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isController := true
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return &metav1.OwnerReference{
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APIVersion: "extensions/v1beta1",
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Kind: "Deployment",
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Name: d.GetName(),
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UID: d.GetUID(),
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Controller: &isController,
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}
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}
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// generateRS creates a replica set, with the input deployment's template as its template
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func generateRS(deployment extensions.Deployment) extensions.ReplicaSet {
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cp, _ := scheme.Scheme.DeepCopy(deployment.Spec.Template)
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template := cp.(v1.PodTemplateSpec)
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return extensions.ReplicaSet{
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ObjectMeta: metav1.ObjectMeta{
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UID: randomUID(),
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Name: apiv1.SimpleNameGenerator.GenerateName("replicaset"),
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Labels: template.Labels,
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OwnerReferences: []metav1.OwnerReference{*newDControllerRef(&deployment)},
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: new(int32),
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Template: template,
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Selector: &metav1.LabelSelector{MatchLabels: template.Labels},
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},
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}
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}
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func randomUID() types.UID {
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return types.UID(strconv.FormatInt(rand.Int63(), 10))
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}
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// generateDeployment creates a deployment, with the input image as its template
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func generateDeployment(image string) extensions.Deployment {
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podLabels := map[string]string{"name": image}
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terminationSec := int64(30)
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return extensions.Deployment{
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ObjectMeta: metav1.ObjectMeta{
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Name: image,
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Annotations: make(map[string]string),
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},
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Spec: extensions.DeploymentSpec{
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Replicas: func(i int32) *int32 { return &i }(1),
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Selector: &metav1.LabelSelector{MatchLabels: podLabels},
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: podLabels,
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: image,
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Image: image,
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ImagePullPolicy: v1.PullAlways,
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TerminationMessagePath: v1.TerminationMessagePathDefault,
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},
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},
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DNSPolicy: v1.DNSClusterFirst,
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TerminationGracePeriodSeconds: &terminationSec,
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RestartPolicy: v1.RestartPolicyAlways,
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SecurityContext: &v1.PodSecurityContext{},
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},
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},
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},
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}
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}
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func TestGetNewRS(t *testing.T) {
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newDeployment := generateDeployment("nginx")
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newRC := generateRS(newDeployment)
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tests := []struct {
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Name string
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objs []runtime.Object
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expected *extensions.ReplicaSet
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}{
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{
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"No new ReplicaSet",
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[]runtime.Object{
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&v1.PodList{},
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&extensions.ReplicaSetList{
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Items: []extensions.ReplicaSet{
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generateRS(generateDeployment("foo")),
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generateRS(generateDeployment("bar")),
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},
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},
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},
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nil,
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},
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{
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"Has new ReplicaSet",
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[]runtime.Object{
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&v1.PodList{},
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&extensions.ReplicaSetList{
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Items: []extensions.ReplicaSet{
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generateRS(generateDeployment("foo")),
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generateRS(generateDeployment("bar")),
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generateRS(generateDeployment("abc")),
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newRC,
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generateRS(generateDeployment("xyz")),
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},
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},
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},
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&newRC,
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},
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}
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for _, test := range tests {
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t.Run(test.Name, func(t *testing.T) {
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fakeClient := &fake.Clientset{}
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fakeClient = addListPodsReactor(fakeClient, test.objs[0])
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fakeClient = addListRSReactor(fakeClient, test.objs[1])
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fakeClient = addUpdatePodsReactor(fakeClient)
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fakeClient = addUpdateRSReactor(fakeClient)
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rs, err := GetNewReplicaSet(&newDeployment, fakeClient.ExtensionsV1beta1())
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if err != nil {
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t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
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}
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if !apiequality.Semantic.DeepEqual(rs, test.expected) {
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t.Errorf("In test case %s, expected %#v, got %#v", test.Name, test.expected, rs)
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}
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})
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}
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}
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func TestGetOldRSs(t *testing.T) {
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newDeployment := generateDeployment("nginx")
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newRS := generateRS(newDeployment)
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newRS.Status.FullyLabeledReplicas = *(newRS.Spec.Replicas)
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// create 2 old deployments and related replica sets/pods, with the same labels but different template
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oldDeployment := generateDeployment("nginx")
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oldDeployment.Spec.Template.Spec.Containers[0].Name = "nginx-old-1"
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oldRS := generateRS(oldDeployment)
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oldRS.Status.FullyLabeledReplicas = *(oldRS.Spec.Replicas)
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oldDeployment2 := generateDeployment("nginx")
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oldDeployment2.Spec.Template.Spec.Containers[0].Name = "nginx-old-2"
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oldRS2 := generateRS(oldDeployment2)
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oldRS2.Status.FullyLabeledReplicas = *(oldRS2.Spec.Replicas)
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// create 1 ReplicaSet that existed before the deployment,
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// with the same labels as the deployment, but no ControllerRef.
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existedRS := generateRSWithLabel(newDeployment.Spec.Template.Labels, "foo")
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existedRS.Status.FullyLabeledReplicas = *(existedRS.Spec.Replicas)
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tests := []struct {
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Name string
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objs []runtime.Object
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expected []*extensions.ReplicaSet
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}{
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{
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"No old ReplicaSets",
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[]runtime.Object{
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&extensions.ReplicaSetList{
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Items: []extensions.ReplicaSet{
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generateRS(generateDeployment("foo")),
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newRS,
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generateRS(generateDeployment("bar")),
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},
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},
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},
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nil,
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},
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{
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"Has old ReplicaSet",
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[]runtime.Object{
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&extensions.ReplicaSetList{
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Items: []extensions.ReplicaSet{
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oldRS2,
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oldRS,
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existedRS,
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newRS,
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generateRSWithLabel(map[string]string{"name": "xyz"}, "xyz"),
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generateRSWithLabel(map[string]string{"name": "bar"}, "bar"),
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},
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},
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},
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[]*extensions.ReplicaSet{&oldRS, &oldRS2},
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},
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}
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for _, test := range tests {
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t.Run(test.Name, func(t *testing.T) {
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fakeClient := &fake.Clientset{}
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fakeClient = addListRSReactor(fakeClient, test.objs[0])
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fakeClient = addGetRSReactor(fakeClient, test.objs[0])
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fakeClient = addUpdateRSReactor(fakeClient)
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_, rss, err := GetOldReplicaSets(&newDeployment, fakeClient.ExtensionsV1beta1())
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if err != nil {
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t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
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}
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if !equal(rss, test.expected) {
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t.Errorf("In test case %q, expected:", test.Name)
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for _, rs := range test.expected {
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t.Errorf("rs = %#v", rs)
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}
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t.Errorf("In test case %q, got:", test.Name)
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for _, rs := range rss {
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t.Errorf("rs = %#v", rs)
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}
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}
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})
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}
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}
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func generatePodTemplateSpec(name, nodeName string, annotations, labels map[string]string) v1.PodTemplateSpec {
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return v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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Annotations: annotations,
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Labels: labels,
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},
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Spec: v1.PodSpec{
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NodeName: nodeName,
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},
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}
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}
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func TestEqualIgnoreHash(t *testing.T) {
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tests := []struct {
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Name string
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former, latter v1.PodTemplateSpec
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expected bool
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}{
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{
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"Same spec, same labels",
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
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true,
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},
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{
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"Same spec, only pod-template-hash label value is different",
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-2", "something": "else"}),
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true,
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},
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{
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"Same spec, the former doesn't have pod-template-hash label",
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{"something": "else"}),
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-2", "something": "else"}),
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true,
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},
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{
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"Same spec, the label is different, and the pod-template-hash label value is the same",
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1"}),
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generatePodTemplateSpec("foo", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
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false,
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},
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{
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"Different spec, same labels",
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generatePodTemplateSpec("foo", "foo-node", map[string]string{"former": "value"}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
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generatePodTemplateSpec("foo", "foo-node", map[string]string{"latter": "value"}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
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false,
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},
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{
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"Different spec, different pod-template-hash label value",
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generatePodTemplateSpec("foo-1", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-1", "something": "else"}),
|
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generatePodTemplateSpec("foo-2", "foo-node", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-2", "something": "else"}),
|
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false,
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},
|
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{
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"Different spec, the former doesn't have pod-template-hash label",
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generatePodTemplateSpec("foo-1", "foo-node-1", map[string]string{}, map[string]string{"something": "else"}),
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generatePodTemplateSpec("foo-2", "foo-node-2", map[string]string{}, map[string]string{extensions.DefaultDeploymentUniqueLabelKey: "value-2", "something": "else"}),
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false,
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},
|
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{
|
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"Different spec, different labels",
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generatePodTemplateSpec("foo", "foo-node-1", map[string]string{}, map[string]string{"something": "else"}),
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generatePodTemplateSpec("foo", "foo-node-2", map[string]string{}, map[string]string{"nothing": "else"}),
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false,
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},
|
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}
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|
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for _, test := range tests {
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t.Run(test.Name, func(t *testing.T) {
|
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runTest := func(t1, t2 *v1.PodTemplateSpec, reversed bool) {
|
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reverseString := ""
|
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if reversed {
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reverseString = " (reverse order)"
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}
|
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// Run
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equal, err := EqualIgnoreHash(t1, t2)
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if err != nil {
|
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t.Errorf("%s: unexpected error: %v", err, test.Name)
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return
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}
|
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if equal != test.expected {
|
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t.Errorf("%q%s: expected %v", test.Name, reverseString, test.expected)
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return
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}
|
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if t1.Labels == nil || t2.Labels == nil {
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t.Errorf("%q%s: unexpected labels becomes nil", test.Name, reverseString)
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}
|
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}
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|
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runTest(&test.former, &test.latter, false)
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// Test the same case in reverse order
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runTest(&test.latter, &test.former, true)
|
|
})
|
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}
|
|
}
|
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|
|
func TestFindNewReplicaSet(t *testing.T) {
|
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now := metav1.Now()
|
|
later := metav1.Time{Time: now.Add(time.Minute)}
|
|
|
|
deployment := generateDeployment("nginx")
|
|
newRS := generateRS(deployment)
|
|
newRS.Labels[extensions.DefaultDeploymentUniqueLabelKey] = "hash"
|
|
newRS.CreationTimestamp = later
|
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|
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newRSDup := generateRS(deployment)
|
|
newRSDup.Labels[extensions.DefaultDeploymentUniqueLabelKey] = "different-hash"
|
|
newRSDup.CreationTimestamp = now
|
|
|
|
oldDeployment := generateDeployment("nginx")
|
|
oldDeployment.Spec.Template.Spec.Containers[0].Name = "nginx-old-1"
|
|
oldRS := generateRS(oldDeployment)
|
|
oldRS.Status.FullyLabeledReplicas = *(oldRS.Spec.Replicas)
|
|
|
|
tests := []struct {
|
|
Name string
|
|
deployment extensions.Deployment
|
|
rsList []*extensions.ReplicaSet
|
|
expected *extensions.ReplicaSet
|
|
}{
|
|
{
|
|
Name: "Get new ReplicaSet with the same template as Deployment spec but different pod-template-hash value",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&newRS, &oldRS},
|
|
expected: &newRS,
|
|
},
|
|
{
|
|
Name: "Get the oldest new ReplicaSet when there are more than one ReplicaSet with the same template",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&newRS, &oldRS, &newRSDup},
|
|
expected: &newRSDup,
|
|
},
|
|
{
|
|
Name: "Get nil new ReplicaSet",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&oldRS},
|
|
expected: nil,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.Name, func(t *testing.T) {
|
|
if rs, err := FindNewReplicaSet(&test.deployment, test.rsList); !reflect.DeepEqual(rs, test.expected) || err != nil {
|
|
t.Errorf("In test case %q, expected %#v, got %#v: %v", test.Name, test.expected, rs, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestFindOldReplicaSets(t *testing.T) {
|
|
now := metav1.Now()
|
|
later := metav1.Time{Time: now.Add(time.Minute)}
|
|
before := metav1.Time{Time: now.Add(-time.Minute)}
|
|
|
|
deployment := generateDeployment("nginx")
|
|
newRS := generateRS(deployment)
|
|
*(newRS.Spec.Replicas) = 1
|
|
newRS.Labels[extensions.DefaultDeploymentUniqueLabelKey] = "hash"
|
|
newRS.CreationTimestamp = later
|
|
|
|
newRSDup := generateRS(deployment)
|
|
newRSDup.Labels[extensions.DefaultDeploymentUniqueLabelKey] = "different-hash"
|
|
newRSDup.CreationTimestamp = now
|
|
|
|
oldDeployment := generateDeployment("nginx")
|
|
oldDeployment.Spec.Template.Spec.Containers[0].Name = "nginx-old-1"
|
|
oldRS := generateRS(oldDeployment)
|
|
oldRS.Status.FullyLabeledReplicas = *(oldRS.Spec.Replicas)
|
|
oldRS.CreationTimestamp = before
|
|
|
|
tests := []struct {
|
|
Name string
|
|
deployment extensions.Deployment
|
|
rsList []*extensions.ReplicaSet
|
|
podList *v1.PodList
|
|
expected []*extensions.ReplicaSet
|
|
expectedRequire []*extensions.ReplicaSet
|
|
}{
|
|
{
|
|
Name: "Get old ReplicaSets",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&newRS, &oldRS},
|
|
expected: []*extensions.ReplicaSet{&oldRS},
|
|
expectedRequire: nil,
|
|
},
|
|
{
|
|
Name: "Get old ReplicaSets with no new ReplicaSet",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&oldRS},
|
|
expected: []*extensions.ReplicaSet{&oldRS},
|
|
expectedRequire: nil,
|
|
},
|
|
{
|
|
Name: "Get old ReplicaSets with two new ReplicaSets, only the oldest new ReplicaSet is seen as new ReplicaSet",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&oldRS, &newRS, &newRSDup},
|
|
expected: []*extensions.ReplicaSet{&oldRS, &newRS},
|
|
expectedRequire: []*extensions.ReplicaSet{&newRS},
|
|
},
|
|
{
|
|
Name: "Get empty old ReplicaSets",
|
|
deployment: deployment,
|
|
rsList: []*extensions.ReplicaSet{&newRS},
|
|
expected: nil,
|
|
expectedRequire: nil,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.Name, func(t *testing.T) {
|
|
requireRS, allRS, err := FindOldReplicaSets(&test.deployment, test.rsList)
|
|
sort.Sort(controller.ReplicaSetsByCreationTimestamp(allRS))
|
|
sort.Sort(controller.ReplicaSetsByCreationTimestamp(test.expected))
|
|
if !reflect.DeepEqual(allRS, test.expected) || err != nil {
|
|
t.Errorf("In test case %q, expected %#v, got %#v: %v", test.Name, test.expected, allRS, err)
|
|
}
|
|
// RSs are getting filtered correctly by rs.spec.replicas
|
|
if !reflect.DeepEqual(requireRS, test.expectedRequire) || err != nil {
|
|
t.Errorf("In test case %q, expected %#v, got %#v: %v", test.Name, test.expectedRequire, requireRS, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// equal compares the equality of two ReplicaSet slices regardless of their ordering
|
|
func equal(rss1, rss2 []*extensions.ReplicaSet) bool {
|
|
if reflect.DeepEqual(rss1, rss2) {
|
|
return true
|
|
}
|
|
if rss1 == nil || rss2 == nil || len(rss1) != len(rss2) {
|
|
return false
|
|
}
|
|
count := 0
|
|
for _, rs1 := range rss1 {
|
|
for _, rs2 := range rss2 {
|
|
if reflect.DeepEqual(rs1, rs2) {
|
|
count++
|
|
break
|
|
}
|
|
}
|
|
}
|
|
return count == len(rss1)
|
|
}
|
|
|
|
func TestGetReplicaCountForReplicaSets(t *testing.T) {
|
|
rs1 := generateRS(generateDeployment("foo"))
|
|
*(rs1.Spec.Replicas) = 1
|
|
rs1.Status.Replicas = 2
|
|
rs2 := generateRS(generateDeployment("bar"))
|
|
*(rs2.Spec.Replicas) = 2
|
|
rs2.Status.Replicas = 3
|
|
|
|
tests := []struct {
|
|
Name string
|
|
sets []*extensions.ReplicaSet
|
|
expectedCount int32
|
|
expectedActual int32
|
|
}{
|
|
{
|
|
"1:2 Replicas",
|
|
[]*extensions.ReplicaSet{&rs1},
|
|
1,
|
|
2,
|
|
},
|
|
{
|
|
"3:5 Replicas",
|
|
[]*extensions.ReplicaSet{&rs1, &rs2},
|
|
3,
|
|
5,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.Name, func(t *testing.T) {
|
|
rs := GetReplicaCountForReplicaSets(test.sets)
|
|
if rs != test.expectedCount {
|
|
t.Errorf("In test case %s, expectedCount %+v, got %+v", test.Name, test.expectedCount, rs)
|
|
}
|
|
rs = GetActualReplicaCountForReplicaSets(test.sets)
|
|
if rs != test.expectedActual {
|
|
t.Errorf("In test case %s, expectedActual %+v, got %+v", test.Name, test.expectedActual, rs)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestResolveFenceposts(t *testing.T) {
|
|
tests := []struct {
|
|
maxSurge string
|
|
maxUnavailable string
|
|
desired int32
|
|
expectSurge int32
|
|
expectUnavailable int32
|
|
expectError bool
|
|
}{
|
|
{
|
|
maxSurge: "0%",
|
|
maxUnavailable: "0%",
|
|
desired: 0,
|
|
expectSurge: 0,
|
|
expectUnavailable: 1,
|
|
expectError: false,
|
|
},
|
|
{
|
|
maxSurge: "39%",
|
|
maxUnavailable: "39%",
|
|
desired: 10,
|
|
expectSurge: 4,
|
|
expectUnavailable: 3,
|
|
expectError: false,
|
|
},
|
|
{
|
|
maxSurge: "oops",
|
|
maxUnavailable: "39%",
|
|
desired: 10,
|
|
expectSurge: 0,
|
|
expectUnavailable: 0,
|
|
expectError: true,
|
|
},
|
|
{
|
|
maxSurge: "55%",
|
|
maxUnavailable: "urg",
|
|
desired: 10,
|
|
expectSurge: 0,
|
|
expectUnavailable: 0,
|
|
expectError: true,
|
|
},
|
|
}
|
|
|
|
for num, test := range tests {
|
|
t.Run("maxSurge="+test.maxSurge, func(t *testing.T) {
|
|
maxSurge := intstr.FromString(test.maxSurge)
|
|
maxUnavail := intstr.FromString(test.maxUnavailable)
|
|
surge, unavail, err := ResolveFenceposts(&maxSurge, &maxUnavail, test.desired)
|
|
if err != nil && !test.expectError {
|
|
t.Errorf("unexpected error %v", err)
|
|
}
|
|
if err == nil && test.expectError {
|
|
t.Error("expected error")
|
|
}
|
|
if surge != test.expectSurge || unavail != test.expectUnavailable {
|
|
t.Errorf("#%v got %v:%v, want %v:%v", num, surge, unavail, test.expectSurge, test.expectUnavailable)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestNewRSNewReplicas(t *testing.T) {
|
|
tests := []struct {
|
|
Name string
|
|
strategyType extensions.DeploymentStrategyType
|
|
depReplicas int32
|
|
newRSReplicas int32
|
|
maxSurge int
|
|
expected int32
|
|
}{
|
|
{
|
|
"can not scale up - to newRSReplicas",
|
|
extensions.RollingUpdateDeploymentStrategyType,
|
|
1, 5, 1, 5,
|
|
},
|
|
{
|
|
"scale up - to depReplicas",
|
|
extensions.RollingUpdateDeploymentStrategyType,
|
|
6, 2, 10, 6,
|
|
},
|
|
{
|
|
"recreate - to depReplicas",
|
|
extensions.RecreateDeploymentStrategyType,
|
|
3, 1, 1, 3,
|
|
},
|
|
}
|
|
newDeployment := generateDeployment("nginx")
|
|
newRC := generateRS(newDeployment)
|
|
rs5 := generateRS(newDeployment)
|
|
*(rs5.Spec.Replicas) = 5
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.Name, func(t *testing.T) {
|
|
*(newDeployment.Spec.Replicas) = test.depReplicas
|
|
newDeployment.Spec.Strategy = extensions.DeploymentStrategy{Type: test.strategyType}
|
|
newDeployment.Spec.Strategy.RollingUpdate = &extensions.RollingUpdateDeployment{
|
|
MaxUnavailable: func(i int) *intstr.IntOrString {
|
|
x := intstr.FromInt(i)
|
|
return &x
|
|
}(1),
|
|
MaxSurge: func(i int) *intstr.IntOrString {
|
|
x := intstr.FromInt(i)
|
|
return &x
|
|
}(test.maxSurge),
|
|
}
|
|
*(newRC.Spec.Replicas) = test.newRSReplicas
|
|
rs, err := NewRSNewReplicas(&newDeployment, []*extensions.ReplicaSet{&rs5}, &newRC)
|
|
if err != nil {
|
|
t.Errorf("In test case %s, got unexpected error %v", test.Name, err)
|
|
}
|
|
if rs != test.expected {
|
|
t.Errorf("In test case %s, expected %+v, got %+v", test.Name, test.expected, rs)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
var (
|
|
condProgressing = func() extensions.DeploymentCondition {
|
|
return extensions.DeploymentCondition{
|
|
Type: extensions.DeploymentProgressing,
|
|
Status: v1.ConditionFalse,
|
|
Reason: "ForSomeReason",
|
|
}
|
|
}
|
|
|
|
condProgressing2 = func() extensions.DeploymentCondition {
|
|
return extensions.DeploymentCondition{
|
|
Type: extensions.DeploymentProgressing,
|
|
Status: v1.ConditionTrue,
|
|
Reason: "BecauseItIs",
|
|
}
|
|
}
|
|
|
|
condAvailable = func() extensions.DeploymentCondition {
|
|
return extensions.DeploymentCondition{
|
|
Type: extensions.DeploymentAvailable,
|
|
Status: v1.ConditionTrue,
|
|
Reason: "AwesomeController",
|
|
}
|
|
}
|
|
|
|
status = func() *extensions.DeploymentStatus {
|
|
return &extensions.DeploymentStatus{
|
|
Conditions: []extensions.DeploymentCondition{condProgressing(), condAvailable()},
|
|
}
|
|
}
|
|
)
|
|
|
|
func TestGetCondition(t *testing.T) {
|
|
exampleStatus := status()
|
|
|
|
tests := []struct {
|
|
name string
|
|
|
|
status extensions.DeploymentStatus
|
|
condType extensions.DeploymentConditionType
|
|
condStatus v1.ConditionStatus
|
|
condReason string
|
|
|
|
expected bool
|
|
}{
|
|
{
|
|
name: "condition exists",
|
|
|
|
status: *exampleStatus,
|
|
condType: extensions.DeploymentAvailable,
|
|
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "condition does not exist",
|
|
|
|
status: *exampleStatus,
|
|
condType: extensions.DeploymentReplicaFailure,
|
|
|
|
expected: false,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
cond := GetDeploymentCondition(test.status, test.condType)
|
|
exists := cond != nil
|
|
if exists != test.expected {
|
|
t.Errorf("%s: expected condition to exist: %t, got: %t", test.name, test.expected, exists)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSetCondition(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
|
|
status *extensions.DeploymentStatus
|
|
cond extensions.DeploymentCondition
|
|
|
|
expectedStatus *extensions.DeploymentStatus
|
|
}{
|
|
{
|
|
name: "set for the first time",
|
|
|
|
status: &extensions.DeploymentStatus{},
|
|
cond: condAvailable(),
|
|
|
|
expectedStatus: &extensions.DeploymentStatus{Conditions: []extensions.DeploymentCondition{condAvailable()}},
|
|
},
|
|
{
|
|
name: "simple set",
|
|
|
|
status: &extensions.DeploymentStatus{Conditions: []extensions.DeploymentCondition{condProgressing()}},
|
|
cond: condAvailable(),
|
|
|
|
expectedStatus: status(),
|
|
},
|
|
{
|
|
name: "overwrite",
|
|
|
|
status: &extensions.DeploymentStatus{Conditions: []extensions.DeploymentCondition{condProgressing()}},
|
|
cond: condProgressing2(),
|
|
|
|
expectedStatus: &extensions.DeploymentStatus{Conditions: []extensions.DeploymentCondition{condProgressing2()}},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
SetDeploymentCondition(test.status, test.cond)
|
|
if !reflect.DeepEqual(test.status, test.expectedStatus) {
|
|
t.Errorf("%s: expected status: %v, got: %v", test.name, test.expectedStatus, test.status)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestRemoveCondition(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
|
|
status *extensions.DeploymentStatus
|
|
condType extensions.DeploymentConditionType
|
|
|
|
expectedStatus *extensions.DeploymentStatus
|
|
}{
|
|
{
|
|
name: "remove from empty status",
|
|
|
|
status: &extensions.DeploymentStatus{},
|
|
condType: extensions.DeploymentProgressing,
|
|
|
|
expectedStatus: &extensions.DeploymentStatus{},
|
|
},
|
|
{
|
|
name: "simple remove",
|
|
|
|
status: &extensions.DeploymentStatus{Conditions: []extensions.DeploymentCondition{condProgressing()}},
|
|
condType: extensions.DeploymentProgressing,
|
|
|
|
expectedStatus: &extensions.DeploymentStatus{},
|
|
},
|
|
{
|
|
name: "doesn't remove anything",
|
|
|
|
status: status(),
|
|
condType: extensions.DeploymentReplicaFailure,
|
|
|
|
expectedStatus: status(),
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
RemoveDeploymentCondition(test.status, test.condType)
|
|
if !reflect.DeepEqual(test.status, test.expectedStatus) {
|
|
t.Errorf("%s: expected status: %v, got: %v", test.name, test.expectedStatus, test.status)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDeploymentComplete(t *testing.T) {
|
|
deployment := func(desired, current, updated, available, maxUnavailable, maxSurge int32) *extensions.Deployment {
|
|
return &extensions.Deployment{
|
|
Spec: extensions.DeploymentSpec{
|
|
Replicas: &desired,
|
|
Strategy: extensions.DeploymentStrategy{
|
|
RollingUpdate: &extensions.RollingUpdateDeployment{
|
|
MaxUnavailable: func(i int) *intstr.IntOrString { x := intstr.FromInt(i); return &x }(int(maxUnavailable)),
|
|
MaxSurge: func(i int) *intstr.IntOrString { x := intstr.FromInt(i); return &x }(int(maxSurge)),
|
|
},
|
|
Type: extensions.RollingUpdateDeploymentStrategyType,
|
|
},
|
|
},
|
|
Status: extensions.DeploymentStatus{
|
|
Replicas: current,
|
|
UpdatedReplicas: updated,
|
|
AvailableReplicas: available,
|
|
},
|
|
}
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
|
|
d *extensions.Deployment
|
|
|
|
expected bool
|
|
}{
|
|
{
|
|
name: "not complete: min but not all pods become available",
|
|
|
|
d: deployment(5, 5, 5, 4, 1, 0),
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "not complete: min availability is not honored",
|
|
|
|
d: deployment(5, 5, 5, 3, 1, 0),
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "complete",
|
|
|
|
d: deployment(5, 5, 5, 5, 0, 0),
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "not complete: all pods are available but not updated",
|
|
|
|
d: deployment(5, 5, 4, 5, 0, 0),
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "not complete: still running old pods",
|
|
|
|
// old replica set: spec.replicas=1, status.replicas=1, status.availableReplicas=1
|
|
// new replica set: spec.replicas=1, status.replicas=1, status.availableReplicas=0
|
|
d: deployment(1, 2, 1, 1, 0, 1),
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "not complete: one replica deployment never comes up",
|
|
|
|
d: deployment(1, 1, 1, 0, 1, 1),
|
|
expected: false,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
if got, exp := DeploymentComplete(test.d, &test.d.Status), test.expected; got != exp {
|
|
t.Errorf("expected complete: %t, got: %t", exp, got)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDeploymentProgressing(t *testing.T) {
|
|
deployment := func(current, updated, ready, available int32) *extensions.Deployment {
|
|
return &extensions.Deployment{
|
|
Status: extensions.DeploymentStatus{
|
|
Replicas: current,
|
|
UpdatedReplicas: updated,
|
|
ReadyReplicas: ready,
|
|
AvailableReplicas: available,
|
|
},
|
|
}
|
|
}
|
|
newStatus := func(current, updated, ready, available int32) extensions.DeploymentStatus {
|
|
return extensions.DeploymentStatus{
|
|
Replicas: current,
|
|
UpdatedReplicas: updated,
|
|
ReadyReplicas: ready,
|
|
AvailableReplicas: available,
|
|
}
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
|
|
d *extensions.Deployment
|
|
newStatus extensions.DeploymentStatus
|
|
|
|
expected bool
|
|
}{
|
|
{
|
|
name: "progressing: updated pods",
|
|
|
|
d: deployment(10, 4, 4, 4),
|
|
newStatus: newStatus(10, 6, 4, 4),
|
|
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "not progressing",
|
|
|
|
d: deployment(10, 4, 4, 4),
|
|
newStatus: newStatus(10, 4, 4, 4),
|
|
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "progressing: old pods removed",
|
|
|
|
d: deployment(10, 4, 6, 6),
|
|
newStatus: newStatus(8, 4, 6, 6),
|
|
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "not progressing: less new pods",
|
|
|
|
d: deployment(10, 7, 3, 3),
|
|
newStatus: newStatus(10, 6, 3, 3),
|
|
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "progressing: less overall but more new pods",
|
|
|
|
d: deployment(10, 4, 7, 7),
|
|
newStatus: newStatus(8, 8, 5, 5),
|
|
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "progressing: more ready pods",
|
|
|
|
d: deployment(10, 10, 9, 8),
|
|
newStatus: newStatus(10, 10, 10, 8),
|
|
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "progressing: more available pods",
|
|
|
|
d: deployment(10, 10, 10, 9),
|
|
newStatus: newStatus(10, 10, 10, 10),
|
|
|
|
expected: true,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
if got, exp := DeploymentProgressing(test.d, &test.newStatus), test.expected; got != exp {
|
|
t.Errorf("expected progressing: %t, got: %t", exp, got)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDeploymentTimedOut(t *testing.T) {
|
|
var (
|
|
null *int32
|
|
ten = int32(10)
|
|
)
|
|
|
|
timeFn := func(min, sec int) time.Time {
|
|
return time.Date(2016, 1, 1, 0, min, sec, 0, time.UTC)
|
|
}
|
|
deployment := func(condType extensions.DeploymentConditionType, status v1.ConditionStatus, pds *int32, from time.Time) extensions.Deployment {
|
|
return extensions.Deployment{
|
|
Spec: extensions.DeploymentSpec{
|
|
ProgressDeadlineSeconds: pds,
|
|
},
|
|
Status: extensions.DeploymentStatus{
|
|
Conditions: []extensions.DeploymentCondition{
|
|
{
|
|
Type: condType,
|
|
Status: status,
|
|
LastUpdateTime: metav1.Time{Time: from},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
|
|
d extensions.Deployment
|
|
nowFn func() time.Time
|
|
|
|
expected bool
|
|
}{
|
|
{
|
|
name: "no progressDeadlineSeconds specified - no timeout",
|
|
|
|
d: deployment(extensions.DeploymentProgressing, v1.ConditionTrue, null, timeFn(1, 9)),
|
|
nowFn: func() time.Time { return timeFn(1, 20) },
|
|
expected: false,
|
|
},
|
|
{
|
|
name: "progressDeadlineSeconds: 10s, now - started => 00:01:20 - 00:01:09 => 11s",
|
|
|
|
d: deployment(extensions.DeploymentProgressing, v1.ConditionTrue, &ten, timeFn(1, 9)),
|
|
nowFn: func() time.Time { return timeFn(1, 20) },
|
|
expected: true,
|
|
},
|
|
{
|
|
name: "progressDeadlineSeconds: 10s, now - started => 00:01:20 - 00:01:11 => 9s",
|
|
|
|
d: deployment(extensions.DeploymentProgressing, v1.ConditionTrue, &ten, timeFn(1, 11)),
|
|
nowFn: func() time.Time { return timeFn(1, 20) },
|
|
expected: false,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
nowFn = test.nowFn
|
|
if got, exp := DeploymentTimedOut(&test.d, &test.d.Status), test.expected; got != exp {
|
|
t.Errorf("expected timeout: %t, got: %t", exp, got)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestMaxUnavailable(t *testing.T) {
|
|
deployment := func(replicas int32, maxUnavailable intstr.IntOrString) extensions.Deployment {
|
|
return extensions.Deployment{
|
|
Spec: extensions.DeploymentSpec{
|
|
Replicas: func(i int32) *int32 { return &i }(replicas),
|
|
Strategy: extensions.DeploymentStrategy{
|
|
RollingUpdate: &extensions.RollingUpdateDeployment{
|
|
MaxSurge: func(i int) *intstr.IntOrString { x := intstr.FromInt(i); return &x }(int(1)),
|
|
MaxUnavailable: &maxUnavailable,
|
|
},
|
|
Type: extensions.RollingUpdateDeploymentStrategyType,
|
|
},
|
|
},
|
|
}
|
|
}
|
|
tests := []struct {
|
|
name string
|
|
deployment extensions.Deployment
|
|
expected int32
|
|
}{
|
|
{
|
|
name: "maxUnavailable less than replicas",
|
|
deployment: deployment(10, intstr.FromInt(5)),
|
|
expected: int32(5),
|
|
},
|
|
{
|
|
name: "maxUnavailable equal replicas",
|
|
deployment: deployment(10, intstr.FromInt(10)),
|
|
expected: int32(10),
|
|
},
|
|
{
|
|
name: "maxUnavailable greater than replicas",
|
|
deployment: deployment(5, intstr.FromInt(10)),
|
|
expected: int32(5),
|
|
},
|
|
{
|
|
name: "maxUnavailable with replicas is 0",
|
|
deployment: deployment(0, intstr.FromInt(10)),
|
|
expected: int32(0),
|
|
},
|
|
{
|
|
name: "maxUnavailable with Recreate deployment strategy",
|
|
deployment: extensions.Deployment{
|
|
Spec: extensions.DeploymentSpec{
|
|
Strategy: extensions.DeploymentStrategy{
|
|
Type: extensions.RecreateDeploymentStrategyType,
|
|
},
|
|
},
|
|
},
|
|
expected: int32(0),
|
|
},
|
|
{
|
|
name: "maxUnavailable less than replicas with percents",
|
|
deployment: deployment(10, intstr.FromString("50%")),
|
|
expected: int32(5),
|
|
},
|
|
{
|
|
name: "maxUnavailable equal replicas with percents",
|
|
deployment: deployment(10, intstr.FromString("100%")),
|
|
expected: int32(10),
|
|
},
|
|
{
|
|
name: "maxUnavailable greater than replicas with percents",
|
|
deployment: deployment(5, intstr.FromString("100%")),
|
|
expected: int32(5),
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Log(test.name)
|
|
t.Run(test.name, func(t *testing.T) {
|
|
maxUnavailable := MaxUnavailable(test.deployment)
|
|
if test.expected != maxUnavailable {
|
|
t.Fatalf("expected:%v, got:%v", test.expected, maxUnavailable)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
//Set of simple tests for annotation related util functions
|
|
func TestAnnotationUtils(t *testing.T) {
|
|
|
|
//Setup
|
|
tDeployment := generateDeployment("nginx")
|
|
tRS := generateRS(tDeployment)
|
|
tDeployment.Annotations[RevisionAnnotation] = "1"
|
|
|
|
//Test Case 1: Check if anotations are copied properly from deployment to RS
|
|
t.Run("SetNewReplicaSetAnnotations", func(t *testing.T) {
|
|
//Try to set the increment revision from 1 through 20
|
|
for i := 0; i < 20; i++ {
|
|
|
|
nextRevision := fmt.Sprintf("%d", i+1)
|
|
SetNewReplicaSetAnnotations(&tDeployment, &tRS, nextRevision, true)
|
|
//Now the ReplicaSets Revision Annotation should be i+1
|
|
|
|
if tRS.Annotations[RevisionAnnotation] != nextRevision {
|
|
t.Errorf("Revision Expected=%s Obtained=%s", nextRevision, tRS.Annotations[RevisionAnnotation])
|
|
}
|
|
}
|
|
})
|
|
|
|
//Test Case 2: Check if annotations are set properly
|
|
t.Run("SetReplicasAnnotations", func(t *testing.T) {
|
|
updated := SetReplicasAnnotations(&tRS, 10, 11)
|
|
if !updated {
|
|
t.Errorf("SetReplicasAnnotations() failed")
|
|
}
|
|
value, ok := tRS.Annotations[DesiredReplicasAnnotation]
|
|
if !ok {
|
|
t.Errorf("SetReplicasAnnotations did not set DesiredReplicasAnnotation")
|
|
}
|
|
if value != "10" {
|
|
t.Errorf("SetReplicasAnnotations did not set DesiredReplicasAnnotation correctly value=%s", value)
|
|
}
|
|
if value, ok = tRS.Annotations[MaxReplicasAnnotation]; !ok {
|
|
t.Errorf("SetReplicasAnnotations did not set DesiredReplicasAnnotation")
|
|
}
|
|
if value != "11" {
|
|
t.Errorf("SetReplicasAnnotations did not set MaxReplicasAnnotation correctly value=%s", value)
|
|
}
|
|
})
|
|
|
|
//Test Case 3: Check if annotations reflect deployments state
|
|
tRS.Annotations[DesiredReplicasAnnotation] = "1"
|
|
tRS.Status.AvailableReplicas = 1
|
|
tRS.Spec.Replicas = new(int32)
|
|
*tRS.Spec.Replicas = 1
|
|
|
|
t.Run("IsSaturated", func(t *testing.T) {
|
|
saturated := IsSaturated(&tDeployment, &tRS)
|
|
if !saturated {
|
|
t.Errorf("SetReplicasAnnotations Expected=true Obtained=false")
|
|
}
|
|
})
|
|
//Tear Down
|
|
}
|