How to use GetPodLogs method of k8sclient Package

Best Testkube code snippet using k8sclient.GetPodLogs

e2e_test.go

Source:e2e_test.go Github

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...48// err = testutil.WaitForAllReplicas(ctx, k8sClient, job, corev1.PodRunning)49// Expect(err).NotTo(HaveOccurred())50// By("Checking coordinator's log to decide to delete services")51// replicaName := fmt.Sprintf("%s-%s", job.Name, "coordinator")52// err = testutil.GetPodLogs(clientset, namespace, replicaName, dicommon.DefaultContainerName, true, messageRepresentJobStartsTraining, logTimeout)53// Expect(err).NotTo(HaveOccurred())54// By(fmt.Sprintf("Delete %s service for a while", tc))55// svcs, err := diutil.ListServices(ctx, k8sClient, job)56// Expect(err).NotTo(HaveOccurred())57// var svc *corev1.Service58// for _, isvc := range svcs {59// if strings.Contains(isvc.Name, tc) {60// svc = isvc61// }62// }63// By(fmt.Sprintf("Delete %s service", svc.Name))64// err = k8sClient.Delete(ctx, svc, &client.DeleteOptions{})65// Expect(err).NotTo(HaveOccurred())66// By("Waiting for job to be succeeded")67// jobKey := types.NamespacedName{Namespace: job.Namespace, Name: job.Name}68// Eventually(func() div2alpha1.Phase {69// err := k8sClient.Get(ctx, jobKey, job)70// if err != nil {71// return div2alpha1.JobUnknown72// }73// return job.Status.Phase74// }, timeout, interval).Should(Equal(div2alpha1.JobSucceeded))75// testutil.CleanUpJob(ctx, k8sClient, job)76// }77// })78// It("Should reconnect after all replicas are available again", func() {79// By("Create DIJob")80// jobPath := filepath.Join(exampleJobsDir, "dijob-multi-gpu.yaml")81// sharedVolumePath := filepath.Join(sharedVolumesDir, "cartpole-multi-gpu")82// job := buildDIJob(jobPath, sharedVolumePath)83// ctx := context.Background()84// var err error85// err = k8sClient.Create(ctx, job, &client.CreateOptions{})86// Expect(err).NotTo(HaveOccurred())87// By(fmt.Sprintf("Waiting for replicas to be running"))88// err = testutil.WaitForAllReplicas(ctx, k8sClient, job, corev1.PodRunning)89// Expect(err).NotTo(HaveOccurred())90// By("Checking coordinator's log to decide to delete services")91// replicaName := fmt.Sprintf("%s-%s", job.Name, "coordinator")92// err = testutil.GetPodLogs(clientset, namespace, replicaName, dicommon.DefaultContainerName, true, messageRepresentJobStartsTraining, logTimeout)93// Expect(err).NotTo(HaveOccurred())94// By("Delete all modules' service for a while")95// svcs, err := diutil.ListServices(ctx, k8sClient, job)96// Expect(err).NotTo(HaveOccurred())97// for _, svc := range svcs {98// svc.ResourceVersion = ""99// svc.Status = corev1.ServiceStatus{}100// By(fmt.Sprintf("Delete %s service", svc.Name))101// err = k8sClient.Delete(ctx, svc, &client.DeleteOptions{})102// Expect(err).NotTo(HaveOccurred())103// By(fmt.Sprintf("Sleep for %s before delete next module", networkFailedDuration.String()))104// time.Sleep(networkFailedDuration)105// }106// By("Waiting for job to be succeeded")107// jobKey := types.NamespacedName{Namespace: job.Namespace, Name: job.Name}108// Eventually(func() div2alpha1.Phase {109// err := k8sClient.Get(ctx, jobKey, job)110// if err != nil {111// return div2alpha1.JobUnknown112// }113// return job.Status.Phase114// }, timeout, interval).Should(Equal(div2alpha1.JobSucceeded))115// testutil.CleanUpJob(ctx, k8sClient, job)116// })117// })118// Context("When some of DIJob's replicas are deleted", func() {119// It("DIJob should catch the change and request di-server to create new replicas", func() {120// testCases := []string{"coordinator", "collector", "learner", "aggregator", "ddp-learner"}121// for i := range testCases {122// tc := testCases[i]123// By(fmt.Sprintf("Create %dth DIJob", i+1))124// jobPath := filepath.Join(exampleJobsDir, "dijob-sidecar.yaml")125// if tc == "aggregator" || tc == "ddp-learner" {126// jobPath = filepath.Join(exampleJobsDir, "dijob-sidecar-multi-gpu.yaml")127// }128// sharedVolumePath := filepath.Join(sharedVolumesDir, fmt.Sprintf("cartpole-%d", i))129// job := buildDIJob(jobPath, sharedVolumePath)130// ctx := context.Background()131// var err error132// err = k8sClient.Create(ctx, job, &client.CreateOptions{})133// Expect(err).NotTo(HaveOccurred())134// By(fmt.Sprintf("Waiting for replicas to be running"))135// err = testutil.WaitForAllReplicas(ctx, k8sClient, job, corev1.PodRunning)136// Expect(err).NotTo(HaveOccurred())137// By("Checking coordinator's log to decide to delete replicas")138// replicaName := fmt.Sprintf("%s-%s", job.Name, "coordinator")139// err = testutil.GetPodLogs(clientset, namespace, replicaName, dicommon.DefaultContainerName, true, messageRepresentJobStartsTraining, logTimeout)140// Expect(err).NotTo(HaveOccurred())141// By(fmt.Sprintf("Delete %s pod for a while", tc))142// pods, err := diutil.ListPods(ctx, k8sClient, job)143// Expect(err).NotTo(HaveOccurred())144// var pod *corev1.Pod145// for _, ipod := range pods {146// if strings.Contains(ipod.Name, tc) {147// pod = ipod148// }149// }150// By(fmt.Sprintf("Delete %s replica", pod.Name))151// err = k8sClient.Delete(ctx, pod, &client.DeleteOptions{})152// Expect(err).NotTo(HaveOccurred())153// By("Waiting for job to be succeeded")154// jobKey := types.NamespacedName{Namespace: job.Namespace, Name: job.Name}155// Eventually(func() div2alpha1.Phase {156// err := k8sClient.Get(ctx, jobKey, job)157// if err != nil {158// return div2alpha1.JobUnknown159// }160// return job.Status.Phase161// }, timeout, interval).Should(Equal(div2alpha1.JobSucceeded))162// testutil.CleanUpJob(ctx, k8sClient, job)163// }164// })165// })166// Context("When some of DIJob's replicas are failed", func() {167// It("DIJob should catch the change and request di-server to create new replicas", func() {168// testCases := []string{"coordinator", "collector", "learner", "aggregator", "ddp-learner"}169// for i := range testCases {170// tc := testCases[i]171// By(fmt.Sprintf("Create %dth DIJob", i+1))172// jobPath := filepath.Join(exampleJobsDir, "dijob-sidecar.yaml")173// if tc == "aggregator" || tc == "ddp-learner" {174// jobPath = filepath.Join(exampleJobsDir, "dijob-sidecar-multi-gpu.yaml")175// }176// sharedVolumePath := filepath.Join(sharedVolumesDir, fmt.Sprintf("cartpole-%d", i))177// job := buildDIJob(jobPath, sharedVolumePath)178// ctx := context.Background()179// var err error180// err = k8sClient.Create(ctx, job, &client.CreateOptions{})181// Expect(err).NotTo(HaveOccurred())182// By(fmt.Sprintf("Waiting for replicas to be running"))183// err = testutil.WaitForAllReplicas(ctx, k8sClient, job, corev1.PodRunning)184// Expect(err).NotTo(HaveOccurred())185// By("Checking coordinator's log to decide to failed replicas")186// replicaName := fmt.Sprintf("%s-%s", job.Name, "coordinator")187// err = testutil.GetPodLogs(clientset, namespace, replicaName, dicommon.DefaultContainerName, true, messageRepresentJobStartsTraining, logTimeout)188// Expect(err).NotTo(HaveOccurred())189// By(fmt.Sprintf("Make %s pod failed", tc))190// pods, err := diutil.ListPods(ctx, k8sClient, job)191// Expect(err).NotTo(HaveOccurred())192// var pod *corev1.Pod193// for _, ipod := range pods {194// if strings.Contains(ipod.Name, tc) {195// pod = ipod196// }197// }198// By(fmt.Sprintf("Make %s replica failed", pod.Name))199// cmd := fmt.Sprintf("kubectl exec -n %s %s -c shell -- sh -c ", pod.Namespace, pod.Name)200// podCmd := `"kill -9 \$(ps -ef |grep \"/opt/conda/bin/ding\"| grep -v \"ps -ef\"|awk 'NR<2 {print \$1}')"`201// cmd = fmt.Sprintf("%s%s", cmd, podCmd)...

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k8s_client.go

Source:k8s_client.go Github

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...28 RunOCctlCommand(args []string, kubeconfigPath string, o ops.Ops) (string, error)29 ApproveCsr(csr *v1beta1.CertificateSigningRequest) error30 ListCsrs() (*v1beta1.CertificateSigningRequestList, error)31 GetConfigMap(namespace string, name string) (*v1.ConfigMap, error)32 GetPodLogs(namespace string, podName string, sinceSeconds int64) (string, error)33 GetPods(namespace string, labelMatch map[string]string) ([]v1.Pod, error)34}35type K8SClientBuilder func(configPath string, logger *logrus.Logger) (K8SClient, error)36type k8sClient struct {37 log *logrus.Logger38 client *kubernetes.Clientset39 ocClient *operatorv1.Clientset40 // CertificateSigningRequestInterface is interface41 csrClient certificatesv1beta1client.CertificateSigningRequestInterface42}43func NewK8SClient(configPath string, logger *logrus.Logger) (K8SClient, error) {44 config, err := clientcmd.BuildConfigFromFlags("", configPath)45 if err != nil {46 return &k8sClient{}, errors.Wrap(err, "loading kubeconfig")47 }48 client, err := kubernetes.NewForConfig(config)49 if err != nil {50 return &k8sClient{}, errors.Wrap(err, "creating a Kubernetes client")51 }52 ocClient, err := operatorv1.NewForConfig(config)53 if err != nil {54 return &k8sClient{}, errors.Wrap(err, "creating a Kubernetes client")55 }56 csrClient := client.CertificatesV1beta1().CertificateSigningRequests()57 return &k8sClient{logger, client, ocClient, csrClient}, nil58}59func (c *k8sClient) ListMasterNodes() (*v1.NodeList, error) {60 nodes, err := c.client.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{LabelSelector: "node-role.kubernetes.io/master"})61 if err != nil {62 return &v1.NodeList{}, err63 }64 return nodes, nil65}66func (c *k8sClient) ListNodes() (*v1.NodeList, error) {67 nodes, err := c.client.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})68 if err != nil {69 return &v1.NodeList{}, err70 }71 return nodes, nil72}73func (c *k8sClient) PatchEtcd() error {74 c.log.Info("Patching etcd")75 data := []byte(`{"spec": {"unsupportedConfigOverrides": {"useUnsupportedUnsafeNonHANonProductionUnstableEtcd": true}}}`)76 result, err := c.ocClient.OperatorV1().Etcds().Patch(context.Background(), "cluster", types.MergePatchType, data, metav1.PatchOptions{})77 if err != nil {78 return errors.Wrap(err, "Failed to patch etcd")79 }80 c.log.Info(result)81 return nil82}83func (c *k8sClient) UnPatchEtcd() error {84 c.log.Info("UnPatching etcd")85 data := []byte(`{"spec": {"unsupportedConfigOverrides": null}}`)86 result, err := c.ocClient.OperatorV1().Etcds().Patch(context.Background(), "cluster", types.MergePatchType, data, metav1.PatchOptions{})87 if err != nil {88 return errors.Wrap(err, "Failed to unpatch etcd")89 }90 c.log.Info(result)91 return nil92}93func (c *k8sClient) RunOCctlCommand(args []string, kubeconfigPath string, o ops.Ops) (string, error) {94 c.log.Infof("Running oc command with args %v", args)95 args = append([]string{fmt.Sprintf("--kubeconfig=%s", kubeconfigPath)}, args...)96 outPut, err := o.ExecPrivilegeCommand(utils.NewLogWriter(c.log), "oc", args...)97 if err != nil {98 return "", err99 }100 return outPut, nil101}102func (c k8sClient) ListCsrs() (*v1beta1.CertificateSigningRequestList, error) {103 csrs, err := c.csrClient.List(context.TODO(), metav1.ListOptions{})104 if err != nil {105 c.log.Errorf("Failed to get list of csrs. err : %e", err)106 return nil, err107 }108 return csrs, nil109}110func (c k8sClient) ApproveCsr(csr *v1beta1.CertificateSigningRequest) error {111 csr.Status.Conditions = append(csr.Status.Conditions, certificatesv1beta1.CertificateSigningRequestCondition{112 Type: certificatesv1beta1.CertificateApproved,113 Reason: "NodeCSRApprove",114 Message: "This CSR was approved by the assisted-installer-controller",115 LastUpdateTime: metav1.Now(),116 })117 if _, err := c.csrClient.UpdateApproval(csr); err != nil {118 c.log.Errorf("Failed to approve csr %v, err %e", csr, err)119 return err120 }121 return nil122}123func (c *k8sClient) GetConfigMap(namespace string, name string) (*v1.ConfigMap, error) {124 cm, err := c.client.CoreV1().ConfigMaps(namespace).Get(context.TODO(), name, metav1.GetOptions{})125 if err != nil {126 return nil, err127 }128 return cm, nil129}130func (c *k8sClient) GetPods(namespace string, labelMatch map[string]string) ([]v1.Pod, error) {131 listOptions := metav1.ListOptions{}132 if labelMatch != nil {133 labelSelector := metav1.LabelSelector{MatchLabels: labelMatch}134 listOptions.LabelSelector = labels.Set(labelSelector.MatchLabels).String()135 }136 pod, err := c.client.CoreV1().Pods(namespace).List(context.TODO(), listOptions)137 if err != nil {138 return nil, err139 }140 return pod.Items, nil141}142func (c *k8sClient) GetPodLogs(namespace string, podName string, sinceSeconds int64) (string, error) {143 podLogOpts := v1.PodLogOptions{}144 if sinceSeconds > 0 {145 podLogOpts.SinceSeconds = &sinceSeconds146 }147 req := c.client.CoreV1().Pods(namespace).GetLogs(podName, &podLogOpts)148 podLogs, err := req.Stream(context.TODO())149 if err != nil {150 return "", err151 }152 defer podLogs.Close()153 buf := new(bytes.Buffer)154 _, err = io.Copy(buf, podLogs)155 if err != nil {156 return "", err...

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suite.go

Source:suite.go Github

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1package application2import (3 "fmt"4 "io/ioutil"5 "strings"6 "sync"7 "testing"8 "time"9 "k8s.io/apimachinery/pkg/labels"10 v1 "k8s.io/api/core/v1"11 "github.com/kyma-project/kyma/tests/application-operator-tests/test/testkit"12 "github.com/stretchr/testify/require"13 metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"14 "k8s.io/apimachinery/pkg/util/rand"15 hapirelease1 "k8s.io/helm/pkg/proto/hapi/release"16 rls "k8s.io/helm/pkg/proto/hapi/services"17)18const (19 testAppName = "operator-app-test-%s"20 defaultCheckInterval = 2 * time.Second21 releaseLabelKey = "release"22 helmTestLabelKey = "helm-chart-test"23)24type TestSuite struct {25 application string26 config testkit.TestConfig27 helmClient testkit.HelmClient28 k8sClient testkit.K8sResourcesClient29 installationTimeout time.Duration30 labelSelector string31}32func NewTestSuite(t *testing.T) *TestSuite {33 config, err := testkit.ReadConfig()34 require.NoError(t, err)35 app := fmt.Sprintf(testAppName, rand.String(4))36 k8sResourcesClient, err := testkit.NewK8sResourcesClient(config.Namespace)37 require.NoError(t, err)38 helmClient, err := testkit.NewHelmClient(config.TillerHost, config.TillerTLSKeyFile, config.TillerTLSCertificateFile, config.TillerTLSSkipVerify)39 require.NoError(t, err)40 testPodsLabels := labels.Set{41 releaseLabelKey: app,42 helmTestLabelKey: "true",43 }44 return &TestSuite{45 application: app,46 config: config,47 helmClient: helmClient,48 k8sClient: k8sResourcesClient,49 installationTimeout: time.Second * time.Duration(config.InstallationTimeoutSeconds),50 labelSelector: labels.SelectorFromSet(testPodsLabels).String(),51 }52}53func (ts *TestSuite) Setup(t *testing.T) {54 t.Logf("Creating %s Application", ts.application)55 _, err := ts.k8sClient.CreateDummyApplication(ts.application, ts.application, false)56 require.NoError(t, err)57}58func (ts *TestSuite) Cleanup(t *testing.T) {59 t.Log("Cleaning up...")60 err := ts.k8sClient.DeleteApplication(ts.application, &metav1.DeleteOptions{})61 require.NoError(t, err)62}63func (ts *TestSuite) WaitForApplicationToBeDeployed(t *testing.T) {64 err := testkit.WaitForFunction(defaultCheckInterval, ts.installationTimeout, func() bool {65 app, err := ts.k8sClient.GetApplication(ts.application, metav1.GetOptions{})66 if err != nil {67 return false68 }69 return app.Status.InstallationStatus.Status == hapirelease1.Status_DEPLOYED.String()70 })71 require.NoError(t, err)72}73func (ts *TestSuite) RunApplicationTests(t *testing.T) {74 wg := sync.WaitGroup{}75 wg.Add(2)76 t.Log("Running application tests")77 responseChan, errorChan := ts.helmClient.TestRelease(ts.application)78 go ts.receiveTestResponse(t, &wg, responseChan)79 go ts.receiveErrorResponse(t, &wg, errorChan)80 wg.Wait()81}82func (ts *TestSuite) receiveTestResponse(t *testing.T, wg *sync.WaitGroup, responseChan <-chan *rls.TestReleaseResponse) {83 defer wg.Done()84 testFailed := false85 for msg := range responseChan {86 t.Log(msg.String())87 if msg.Status == hapirelease1.TestRun_FAILURE {88 testFailed = true89 }90 }91 t.Logf("%s tests finished. Message channel closed", ts.application)92 ts.getLogsAndCleanup(t)93 if testFailed {94 t.Logf("%s tests failed", ts.application)95 t.Fatal("Application tests failed")96 }97}98func (ts *TestSuite) receiveErrorResponse(t *testing.T, wg *sync.WaitGroup, errorChan <-chan error) {99 defer wg.Done()100 for err := range errorChan {101 t.Errorf("Error while executing tests for %s release: %s", ts.application, err.Error())102 }103 t.Log("Error channel closed")104}105func (ts *TestSuite) getLogsAndCleanup(t *testing.T) {106 podsToFetch, err := ts.k8sClient.ListPods(metav1.ListOptions{LabelSelector: ts.labelSelector})107 require.NoError(t, err)108 for _, pod := range podsToFetch.Items {109 ts.getPodLogs(t, pod)110 ts.deleteTestPod(t, pod)111 }112}113func (ts *TestSuite) getPodLogs(t *testing.T, pod v1.Pod) {114 var testContainer string115 for _, c := range pod.Spec.Containers {116 if strings.HasPrefix(c.Name, ts.application) {117 testContainer = c.Name118 }119 }120 req := ts.k8sClient.GetLogs(pod.Name, &v1.PodLogOptions{121 Container: testContainer,122 })123 reader, err := req.Stream()124 require.NoError(t, err)125 defer reader.Close()126 bytes, err := ioutil.ReadAll(reader)127 require.NoError(t, err)128 strLogs := strings.Replace(string(bytes), "\t", " ", -1)129 t.Logf("--------------------------------------------Logs from %s test--------------------------------------------", pod.Name)130 lines := strings.Split(strLogs, "\n")131 for _, l := range lines {132 t.Log(l)133 }134 t.Logf("--------------------------------------------End of logs from %s test--------------------------------------------", pod.Name)135}136func (ts *TestSuite) deleteTestPod(t *testing.T, pod v1.Pod) {137 err := ts.k8sClient.DeletePod(pod.Name, &metav1.DeleteOptions{})138 require.NoError(t, err)139}...

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GetPodLogs

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1import (2func main() {3 k8sclient.KubeConfig = golenv.OverrideIfEnv("KUBE_CONFIG", "~/.kube/config")4 k8sclient.KubeContext = golenv.OverrideIfEnv("KUBE_CONTEXT", "minikube")5 k8sclient.KubeNamespace = golenv.OverrideIfEnv("KUBE_NAMESPACE", "default")6 k8sclient.KubePod = golenv.OverrideIfEnv("KUBE_POD", "nginx")7 k8sclient.KubeContainer = golenv.OverrideIfEnv("KUBE_CONTAINER", "nginx")8 k8sclient.KubeClient = golhttp.NewClient(30*time.Second, 30*time.Second, 30*time.Second)9 fmt.Println("Pod Logs:")10 fmt.Println(k8sclient.GetPodLogs())11}12import (13func main() {14 k8sclient.KubeConfig = golenv.OverrideIfEnv("KUBE_CONFIG", "~/.kube/config")15 k8sclient.KubeContext = golenv.OverrideIfEnv("KUBE_CONTEXT", "minikube")16 k8sclient.KubeNamespace = golenv.OverrideIfEnv("KUBE_NAMESPACE", "default")17 k8sclient.KubePod = golenv.OverrideIfEnv("KUBE_POD", "nginx")18 k8sclient.KubeContainer = golenv.OverrideIfEnv("KUBE_CONTAINER", "nginx")19 k8sclient.KubeClient = golhttp.NewClient(30*time.Second, 30*time.Second, 30*time.Second)20 fmt.Println("Pod Metrics:")21 fmt.Println(k8sclient.GetPodMetrics

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GetPodLogs

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1func main() {2 k8sclient := k8sclient.NewK8sClient()3 podLogs, err := k8sclient.GetPodLogs("podname", "namespace")4 if err != nil {5 fmt.Println(err)6 }7 fmt.Println(podLogs)8}9func (k8sclient *K8sClient) GetPodLogs(podName string, podNamespace string) (string, error) {10 req := k8sclient.Clientset.CoreV1().Pods(podNamespace).GetLogs(podName, &corev1.PodLogOptions{})11 podLogStream, err := req.Stream()12 if err != nil {13 }14 defer podLogStream.Close()15 buf := new(bytes.Buffer)16 _, err = io.Copy(buf, podLogStream)17 if err != nil {18 }19 str := buf.String()20}21func main() {22 k8sclient := k8sclient.NewK8sClient()23 podLogs, err := k8sclient.GetPodLogs("podname", "namespace")24 if err != nil {25 fmt.Println(err)26 }27 fmt.Println(podLogs)28}29func (k8sclient *K8sClient) GetPodLogs(podName string, podNamespace string) (string, error) {30 req := k8sclient.Clientset.CoreV1().Pods(podNamespace).GetLogs(podName, &corev1.PodLogOptions{})31 podLogStream, err := req.Stream()32 if err != nil {33 }34 defer podLogStream.Close()35 buf := new(bytes.Buffer)36 _, err = io.Copy(buf, podLogStream)37 if err != nil {38 }

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GetPodLogs

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1func GetPodLogs(clientset *kubernetes.Clientset, namespace string, podName string, containerName string) {2 req := clientset.CoreV1().Pods(namespace).GetLogs(podName, &v1.PodLogOptions{Container: containerName})3 podLogs, err := req.Stream()4 if err != nil {5 panic(err.Error())6 }7 defer podLogs.Close()8 buf := new(bytes.Buffer)9 _, err = io.Copy(buf, podLogs)10 if err != nil {11 panic(err.Error())12 }13 str := buf.String()14 fmt.Println(str)15}16func GetPodLogs(clientset *kubernetes.Clientset, namespace string, podName string, containerName string) {17 req := clientset.CoreV1().Pods(namespace).GetLogs(podName, &v1.PodLogOptions{Container: containerName})18 podLogs, err := req.Stream()19 if err != nil {20 panic(err.Error())21 }22 defer podLogs.Close()23 buf := new(bytes.Buffer)24 _, err = io.Copy(buf, podLogs)25 if err != nil {26 panic(err.Error())27 }28 str := buf.String()29 fmt.Println(str)30}31func GetPodLogs(clientset *kubernetes.Clientset, namespace string, podName string, containerName string) {32 req := clientset.CoreV1().Pods(namespace).GetLogs(podName, &v1.PodLogOptions{Container: containerName})33 podLogs, err := req.Stream()34 if err != nil {35 panic(err.Error())36 }37 defer podLogs.Close()38 buf := new(bytes.Buffer)39 _, err = io.Copy(buf, podLogs)40 if err != nil {41 panic(err.Error())42 }43 str := buf.String()44 fmt.Println(str)45}

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GetPodLogs

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1import (2func main() {3 client := k8sclient.NewK8sClient()4 log.Println("Pod name is: ", podName)5 logs, err := client.GetPodLogs(podName)6 if err != nil {7 log.Println("Error while getting pod logs: ", err)8 }9 fmt.Println(logs)10}11import (12type K8sClient struct {13}14func NewK8sClient() *K8sClient {15 clientset, err := getClientset()16 if err != nil {17 log.Fatalf("Error while getting clientset: %v", err)18 }19 return &K8sClient{20 }21}22func getClientset() (*kubernetes.Clientset, error) {23 if home := homedir.HomeDir(); home != "" {24 kubeconfig := filepath.Join(home, ".kube", "config")25 config, err = clientcmd.BuildConfigFromFlags("", kubeconfig)26 if err != nil {27 }28 } else {29 config, err = rest.InClusterConfig()30 if err != nil {31 }32 }33 clientset, err := kubernetes.NewForConfig(config)34 if err != nil {

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GetPodLogs

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1import (2func main() {3 client := k8sclient.NewClient()4 client.SetConfig("/home/rajdeep/.kube/config")5 client.SetNamespace("default")6 client.SetPodName("nginx-6f9c6b7d6b-2q4q4")7 client.SetContainerName("nginx")8 client.SetTailLines(10)9 logs, err := client.GetPodLogs()10 if err != nil {11 log.Fatal(err)12 }13 fmt.Println(logs)14}

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GetPodLogs

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1import (2func main() {3 k8sclient.GetPodLogs(podName,namespace,container)4}5import (6func GetPodLogs(podName string,namespace string,container string) {7 clientset := GetClientSet()8 logs := GetPodLogsFromK8s(clientset,podName,namespace,container)9 fmt.Println(logs)10}11func GetClientSet() *kubernetes.Clientset {12 config, err := clientcmd.BuildConfigFromFlags("", kubeconfig)13 if err != nil {14 panic(err.Error())15 }16 clientset, err := kubernetes.NewForConfig(config)17 if err != nil {18 panic(err.Error())19 }20}21func GetPodLogsFromK8s(clientset *kubernetes.Clientset,podName string,namespace string,container string) string {22 VersionedParams(&podLogOpts, scheme.ParameterCodec)23 podLogs, err := req.Stream()24 if err != nil {25 panic(err.Error())26 }27 defer podLogs.Close()28 buf := new(bytes.Buffer)29 _, err = io.Copy(buf, podLogs)30 if err != nil {31 panic(err.Error())32 }33 str := buf.String()34}35import (

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