package e2e import ( "context" "errors" "fmt" "strings" "time" appsv1 "k8s.io/api/apps/v1" v1 "k8s.io/api/core/v1" apierrs "k8s.io/apimachinery/pkg/api/errors" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" "k8s.io/apimachinery/pkg/util/wait" "k8s.io/client-go/kubernetes" "k8s.io/kubernetes/pkg/client/conditions" "k8s.io/kubernetes/test/e2e/framework" e2elog "k8s.io/kubernetes/test/e2e/framework/log" ) // getDaemonSetLabelSelector returns labels of daemonset given name and namespace dynamically, // needed since labels are not same for helm and non-helm deployments. func getDaemonSetLabelSelector(f *framework.Framework, ns, daemonSetName string) (string, error) { ds, err := f.ClientSet.AppsV1().DaemonSets(ns).Get(context.TODO(), daemonSetName, metav1.GetOptions{}) if err != nil { e2elog.Logf("Error getting daemonsets with name %s in namespace %s", daemonSetName, ns) return "", err } s, err := metav1.LabelSelectorAsSelector(ds.Spec.Selector) if err != nil { e2elog.Logf("Error parsing %s daemonset selector in namespace %s", daemonSetName, ns) return "", err } e2elog.Logf("LabelSelector for %s daemonsets in namespace %s: %s", daemonSetName, ns, s.String()) return s.String(), nil } func waitForDaemonSets(name, ns string, c kubernetes.Interface, t int) error { timeout := time.Duration(t) * time.Minute start := time.Now() e2elog.Logf("Waiting up to %v for all daemonsets in namespace '%s' to start", timeout, ns) return wait.PollImmediate(poll, timeout, func() (bool, error) { ds, err := c.AppsV1().DaemonSets(ns).Get(context.TODO(), name, metav1.GetOptions{}) if err != nil { e2elog.Logf("Error getting daemonsets in namespace: '%s': %v", ns, err) if strings.Contains(err.Error(), "not found") { return false, nil } if isRetryableAPIError(err) { return false, nil } return false, err } dNum := ds.Status.DesiredNumberScheduled ready := ds.Status.NumberReady e2elog.Logf( "%d / %d pods ready in namespace '%s' in daemonset '%s' (%d seconds elapsed)", ready, dNum, ns, ds.ObjectMeta.Name, int(time.Since(start).Seconds())) if ready != dNum { return false, nil } return true, nil }) } // Waits for the deployment to complete. func waitForDeploymentComplete(name, ns string, c kubernetes.Interface, t int) error { var ( deployment *appsv1.Deployment reason string err error ) timeout := time.Duration(t) * time.Minute err = wait.PollImmediate(poll, timeout, func() (bool, error) { deployment, err = c.AppsV1().Deployments(ns).Get(context.TODO(), name, metav1.GetOptions{}) if err != nil { if isRetryableAPIError(err) { return false, nil } e2elog.Logf("deployment error: %v", err) return false, err } // TODO need to check rolling update // When the deployment status and its underlying resources reach the // desired state, we're done if deployment.Status.Replicas == deployment.Status.ReadyReplicas { return true, nil } e2elog.Logf( "deployment status: expected replica count %d running replica count %d", deployment.Status.Replicas, deployment.Status.ReadyReplicas) reason = fmt.Sprintf("deployment status: %#v", deployment.Status.String()) return false, nil }) if errors.Is(err, wait.ErrWaitTimeout) { err = fmt.Errorf("%s", reason) } if err != nil { return fmt.Errorf("error waiting for deployment %q status to match expectation: %w", name, err) } return nil } func findPodAndContainerName(f *framework.Framework, ns, cn string, opt *metav1.ListOptions) (string, string, error) { podList, err := f.PodClientNS(ns).List(context.TODO(), *opt) if err != nil { return "", "", err } if len(podList.Items) == 0 { return "", "", errors.New("podlist is empty") } if cn != "" { for i := range podList.Items { for j := range podList.Items[i].Spec.Containers { if podList.Items[i].Spec.Containers[j].Name == cn { return podList.Items[i].Name, cn, nil } } } return "", "", errors.New("container name not found") } return podList.Items[0].Name, podList.Items[0].Spec.Containers[0].Name, nil } func getCommandInPodOpts( f *framework.Framework, c, ns, cn string, opt *metav1.ListOptions) (framework.ExecOptions, error) { cmd := []string{"/bin/sh", "-c", c} pName, cName, err := findPodAndContainerName(f, ns, cn, opt) if err != nil { return framework.ExecOptions{}, err } return framework.ExecOptions{ Command: cmd, PodName: pName, Namespace: ns, ContainerName: cName, Stdin: nil, CaptureStdout: true, CaptureStderr: true, PreserveWhitespace: true, }, nil } // execCommandInDaemonsetPod executes commands inside given container of a daemonset pod on a particular node. func execCommandInDaemonsetPod( f *framework.Framework, c, daemonsetName, nodeName, containerName, ns string) (string, string, error) { selector, err := getDaemonSetLabelSelector(f, ns, daemonsetName) if err != nil { return "", "", err } opt := &metav1.ListOptions{ LabelSelector: selector, } pods, err := listPods(f, ns, opt) if err != nil { return "", "", err } podName := "" for i := range pods { if pods[i].Spec.NodeName == nodeName { podName = pods[i].Name } } if podName == "" { return "", "", fmt.Errorf("%s daemonset pod on node %s in namespace %s not found", daemonsetName, nodeName, ns) } cmd := []string{"/bin/sh", "-c", c} podOpt := framework.ExecOptions{ Command: cmd, Namespace: ns, PodName: podName, ContainerName: containerName, CaptureStdout: true, CaptureStderr: true, } return f.ExecWithOptions(podOpt) } // listPods returns slice of pods matching given ListOptions and namespace. func listPods(f *framework.Framework, ns string, opt *metav1.ListOptions) ([]v1.Pod, error) { podList, err := f.PodClientNS(ns).List(context.TODO(), *opt) if len(podList.Items) == 0 { return podList.Items, fmt.Errorf("podlist for label '%s' in namespace %s is empty", opt.LabelSelector, ns) } return podList.Items, err } func execCommandInPod(f *framework.Framework, c, ns string, opt *metav1.ListOptions) (string, string, error) { podOpt, err := getCommandInPodOpts(f, c, ns, "", opt) if err != nil { return "", "", err } stdOut, stdErr, err := f.ExecWithOptions(podOpt) if stdErr != "" { e2elog.Logf("stdErr occurred: %v", stdErr) } return stdOut, stdErr, err } func execCommandInContainer( f *framework.Framework, c, ns, cn string, opt *metav1.ListOptions) (string, string, error) { podOpt, err := getCommandInPodOpts(f, c, ns, cn, opt) if err != nil { return "", "", err } stdOut, stdErr, err := f.ExecWithOptions(podOpt) if stdErr != "" { e2elog.Logf("stdErr occurred: %v", stdErr) } return stdOut, stdErr, err } func execCommandInToolBoxPod(f *framework.Framework, c, ns string) (string, string, error) { opt := &metav1.ListOptions{ LabelSelector: rookToolBoxPodLabel, } podOpt, err := getCommandInPodOpts(f, c, ns, "", opt) if err != nil { return "", "", err } stdOut, stdErr, err := f.ExecWithOptions(podOpt) if stdErr != "" { e2elog.Logf("stdErr occurred: %v", stdErr) } return stdOut, stdErr, err } func execCommandInPodAndAllowFail(f *framework.Framework, c, ns string, opt *metav1.ListOptions) (string, string) { podOpt, err := getCommandInPodOpts(f, c, ns, "", opt) if err != nil { return "", err.Error() } stdOut, stdErr, err := f.ExecWithOptions(podOpt) if err != nil { e2elog.Logf("command %s failed: %v", c, err) } return stdOut, stdErr } func loadApp(path string) (*v1.Pod, error) { app := v1.Pod{} if err := unmarshal(path, &app); err != nil { return nil, err } for i := range app.Spec.Containers { app.Spec.Containers[i].ImagePullPolicy = v1.PullIfNotPresent } return &app, nil } func createApp(c kubernetes.Interface, app *v1.Pod, timeout int) error { _, err := c.CoreV1().Pods(app.Namespace).Create(context.TODO(), app, metav1.CreateOptions{}) if err != nil { return fmt.Errorf("failed to create app: %w", err) } return waitForPodInRunningState(app.Name, app.Namespace, c, timeout, noError) } func createAppErr(c kubernetes.Interface, app *v1.Pod, timeout int, errString string) error { _, err := c.CoreV1().Pods(app.Namespace).Create(context.TODO(), app, metav1.CreateOptions{}) if err != nil { return err } return waitForPodInRunningState(app.Name, app.Namespace, c, timeout, errString) } func waitForPodInRunningState(name, ns string, c kubernetes.Interface, t int, expectedError string) error { timeout := time.Duration(t) * time.Minute start := time.Now() e2elog.Logf("Waiting up to %v to be in Running state", name) return wait.PollImmediate(poll, timeout, func() (bool, error) { pod, err := c.CoreV1().Pods(ns).Get(context.TODO(), name, metav1.GetOptions{}) if err != nil { if isRetryableAPIError(err) { return false, nil } return false, fmt.Errorf("failed to get app: %w", err) } switch pod.Status.Phase { case v1.PodRunning: return true, nil case v1.PodFailed, v1.PodSucceeded: return false, conditions.ErrPodCompleted case v1.PodPending: if expectedError != "" { events, err := c.CoreV1().Events(ns).List(context.TODO(), metav1.ListOptions{ FieldSelector: fmt.Sprintf("involvedObject.name=%s", name), }) if err != nil { return false, err } if strings.Contains(events.String(), expectedError) { e2elog.Logf("Expected Error %q found successfully", expectedError) return true, err } } case v1.PodUnknown: e2elog.Logf( "%s app is in %s phase expected to be in Running state (%d seconds elapsed)", name, pod.Status.Phase, int(time.Since(start).Seconds())) } return false, nil }) } func deletePod(name, ns string, c kubernetes.Interface, t int) error { timeout := time.Duration(t) * time.Minute err := c.CoreV1().Pods(ns).Delete(context.TODO(), name, metav1.DeleteOptions{}) if err != nil { return fmt.Errorf("failed to delete app: %w", err) } start := time.Now() e2elog.Logf("Waiting for pod %v to be deleted", name) return wait.PollImmediate(poll, timeout, func() (bool, error) { _, err := c.CoreV1().Pods(ns).Get(context.TODO(), name, metav1.GetOptions{}) if err != nil { if isRetryableAPIError(err) { return false, nil } if apierrs.IsNotFound(err) { return true, nil } e2elog.Logf("%s app to be deleted (%d seconds elapsed)", name, int(time.Since(start).Seconds())) return false, fmt.Errorf("failed to get app: %w", err) } return false, nil }) } func deletePodWithLabel(label, ns string, skipNotFound bool) error { err := retryKubectlArgs( ns, kubectlDelete, deployTimeout, "po", "-l", label, fmt.Sprintf("--ignore-not-found=%t", skipNotFound)) if err != nil { e2elog.Logf("failed to delete pod %v", err) } return err } // calculateSHA512sum returns the sha512sum of a file inside a pod. func calculateSHA512sum(f *framework.Framework, app *v1.Pod, filePath string, opt *metav1.ListOptions) (string, error) { cmd := fmt.Sprintf("sha512sum %s", filePath) sha512sumOut, stdErr, err := execCommandInPod(f, cmd, app.Namespace, opt) if err != nil { return "", err } if stdErr != "" { return "", fmt.Errorf("error: sha512sum could not be calculated %v", stdErr) } // extract checksum from sha512sum output. checkSum := strings.Split(sha512sumOut, "")[0] e2elog.Logf("Calculated checksum %s", checkSum) return checkSum, nil }