137 lines
3.7 KiB
Go
137 lines
3.7 KiB
Go
package e2e
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"sort"
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"github.com/onsi/ginkgo"
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corev1 "k8s.io/api/core/v1"
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eventsv1 "k8s.io/api/events/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/client-go/kubernetes"
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"sigs.k8s.io/controller-runtime/pkg/client"
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)
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var (
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podLogTailLimit int64 = 15
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kubernetesEventsLimit int64 = 30
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// MUST match the labels in the deployment manifest: deploy/operator.yaml
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operatorPodLabels = map[string]string{
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"name": "jenkins-operator",
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}
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)
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func getOperatorPod(namespace string) (*corev1.Pod, error) {
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lo := &client.ListOptions{
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LabelSelector: labels.SelectorFromSet(operatorPodLabels),
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Namespace: namespace,
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}
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pods := &corev1.PodList{}
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err := K8sClient.List(context.TODO(), pods, lo)
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if err != nil {
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return nil, err
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}
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return &pods.Items[0], nil
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}
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func getOperatorLogs(namespace string) (string, error) {
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pod, err := getOperatorPod(namespace)
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if err != nil {
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return "Operator pod doesn't exist", err
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}
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logOptions := corev1.PodLogOptions{TailLines: &podLogTailLimit}
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// creates the clientset
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clientset, err := kubernetes.NewForConfig(Cfg)
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if err != nil {
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return "", err
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}
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req := clientset.CoreV1().Pods(pod.Namespace).GetLogs(pod.Name, &logOptions)
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podLogs, err := req.Stream(context.TODO())
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if err != nil {
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return "", err
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}
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defer func() {
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if podLogs != nil {
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_ = podLogs.Close()
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}
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}()
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buf := new(bytes.Buffer)
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_, err = io.Copy(buf, podLogs)
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if err != nil {
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return "", err
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}
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logs := buf.String()
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return logs, nil
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}
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func printOperatorLogs(namespace string) {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Operator logs in '%s' namespace:\n", namespace)
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logs, err := getOperatorLogs(namespace)
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if err != nil {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Couldn't get the operator pod logs: %s", err)
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} else {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Last %d lines of log from operator:\n %s", podLogTailLimit, logs)
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}
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}
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func getKubernetesEvents(namespace string) ([]eventsv1.Event, error) {
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listOptions := &client.ListOptions{
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Limit: kubernetesEventsLimit,
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Namespace: namespace,
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}
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events := &eventsv1.EventList{}
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err := K8sClient.List(context.TODO(), events, listOptions)
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if err != nil {
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return nil, err
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}
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sort.SliceStable(events.Items, func(i, j int) bool {
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return events.Items[i].CreationTimestamp.Unix() < events.Items[j].CreationTimestamp.Unix()
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})
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return events.Items, nil
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}
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func printKubernetesEvents(namespace string) {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Kubernetes events in '%s' namespace:\n", namespace)
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events, err := getKubernetesEvents(namespace)
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if err != nil {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Couldn't get kubernetes events: %s", err)
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} else {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Last %d events from kubernetes:\n", kubernetesEventsLimit)
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for _, event := range events {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Event CreationTime: %s, Type: %s, Reason: %s, Object: %s %s/%s, Action: %s\n",
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event.CreationTimestamp, event.Type, event.Reason, event.Regarding.Kind, event.Regarding.Namespace, event.Regarding.Name, event.Note)
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}
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}
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}
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func printKubernetesPods(namespace string) {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "\nAll pods in '%s' namespace:\n", namespace)
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pod, err := getOperatorPod(namespace)
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if err == nil {
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "%s: %+v \n", pod.Name, pod.Status.Conditions)
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}
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}
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func ShowLogsIfTestHasFailed(failed bool, namespace string) {
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if failed {
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const defaultNamespace = "default"
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_, _ = fmt.Fprintf(ginkgo.GinkgoWriter, "Test failed. Below here you can check logs:")
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printKubernetesEvents(namespace)
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printKubernetesEvents(defaultNamespace)
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printKubernetesPods(namespace)
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printOperatorLogs(namespace)
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}
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}
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