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rollout.go
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rollout.go
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/*
Copyright 2023 The Kubernetes Authors.
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.
*/
// OWNER = sig/cli
package kubectl
import (
"context"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/onsi/ginkgo/v2"
appsv1 "k8s.io/api/apps/v1"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
clientset "k8s.io/client-go/kubernetes"
commonutils "k8s.io/kubernetes/test/e2e/common"
"k8s.io/kubernetes/test/e2e/framework"
e2edeployment "k8s.io/kubernetes/test/e2e/framework/deployment"
e2ekubectl "k8s.io/kubernetes/test/e2e/framework/kubectl"
imageutils "k8s.io/kubernetes/test/utils/image"
admissionapi "k8s.io/pod-security-admission/api"
)
var _ = SIGDescribe("Kubectl rollout", func() {
defer ginkgo.GinkgoRecover()
var deploymentYaml string
f := framework.NewDefaultFramework("kubectl-rollout")
f.NamespacePodSecurityLevel = admissionapi.LevelBaseline
var c clientset.Interface
var ns string
ginkgo.BeforeEach(func() {
c = f.ClientSet
ns = f.Namespace.Name
deploymentYaml = commonutils.SubstituteImageName(string(readTestFileOrDie(httpdDeployment1Filename)))
})
ginkgo.Describe("undo", func() {
ginkgo.AfterEach(func() {
cleanupKubectlInputs(deploymentYaml, ns, "app=httpd")
})
ginkgo.It("undo should rollback and update deployment env", func(ctx context.Context) {
var err error
// create deployment
e2ekubectl.RunKubectlOrDieInput(ns, deploymentYaml, "apply", "-f", "-")
if err = e2edeployment.WaitForDeploymentRevisionAndImage(c, ns, "httpd-deployment", "1", imageutils.GetE2EImage(imageutils.HttpdNew)); err != nil {
framework.Failf("created deployment not ready")
}
var d *appsv1.Deployment
if d, err = c.AppsV1().Deployments(ns).Get(ctx, "httpd-deployment", metav1.GetOptions{}); err != nil {
framework.Failf("get deployment failed")
}
origEnv := d.Spec.Template.Spec.Containers[0].Env
for _, env := range origEnv {
if env.Name == "foo" && env.Value == "bar" {
framework.Failf("labeled deployment should not have an env named foo and valued bar at the beginning")
}
}
origLabels := d.Spec.Template.Labels
if len(origLabels) == 0 {
framework.Failf("original labels should not be empty in kubectl rollout test")
}
origAnnotations := d.Spec.Template.Annotations
if len(origAnnotations) == 0 {
framework.Failf("original annotations should not be empty in kubectl rollout test")
}
// do a small update
if _, err = e2ekubectl.RunKubectl(ns, "set", "env", "deployment/httpd-deployment", "foo=bar"); err != nil {
framework.Failf("kubectl failed set env for deployment")
}
// wait for env to be set
if err = e2edeployment.WaitForDeploymentComplete(c, d); err != nil {
framework.Failf("update deployment failed")
}
if d, err = c.AppsV1().Deployments(ns).Get(ctx, "httpd-deployment", metav1.GetOptions{}); err != nil {
framework.Failf("get deployment failed")
}
envs := d.Spec.Template.Spec.Containers[0].Env
envUpdated := false
for _, env := range envs {
if env.Name == "foo" && env.Value == "bar" {
envUpdated = true
break
}
}
if !envUpdated {
framework.Failf("update deployment's env failed")
}
// rollback
if _, err = e2ekubectl.RunKubectl(ns, "rollout", "undo", "deployment/httpd-deployment"); err != nil {
framework.Failf("kubectl failed to rollback deployment")
}
// wait for rollback finished
if err = e2edeployment.WaitForDeploymentComplete(c, d); err != nil {
framework.Failf("rollback deployment failed")
}
if d, err = c.AppsV1().Deployments(ns).Get(ctx, "httpd-deployment", metav1.GetOptions{}); err != nil {
framework.Failf("get deployment failed")
}
rollbackedEnv := d.Spec.Template.Spec.Containers[0].Env
rollbackedLabels := d.Spec.Template.Labels
rollbackedAnnotations := d.Spec.Template.Annotations
if diff := cmp.Diff(origEnv, rollbackedEnv, cmpopts.SortSlices(func(a, b v1.EnvVar) bool {
return a.Name < b.Name
})); diff != "" {
framework.Failf("inconsistent env after rolled back: %s", diff)
}
if diff := cmp.Diff(origLabels, rollbackedLabels); diff != "" {
framework.Failf("inconsistent labels after rolled back: %s", diff)
}
if diff := cmp.Diff(origAnnotations, rollbackedAnnotations); diff != "" {
framework.Failf("inconsistent annotations after rolled back: %s", diff)
}
})
})
})