mirror of
https://github.com/vmware-tanzu/velero.git
synced 2026-07-30 20:12:42 +00:00
700 lines
18 KiB
Go
700 lines
18 KiB
Go
/*
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Copyright The Velero Contributors.
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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 kube
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import (
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"context"
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"io"
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"strings"
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"testing"
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"time"
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"github.com/pkg/errors"
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"github.com/stretchr/testify/assert"
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corev1api "k8s.io/api/core/v1"
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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/client-go/kubernetes"
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"k8s.io/client-go/kubernetes/fake"
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clientTesting "k8s.io/client-go/testing"
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velerotest "github.com/vmware-tanzu/velero/pkg/test"
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corev1client "k8s.io/client-go/kubernetes/typed/core/v1"
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)
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func TestEnsureDeletePod(t *testing.T) {
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podObject := &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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}
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tests := []struct {
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name string
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clientObj []runtime.Object
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podName string
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namespace string
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reactors []reactor
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err string
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}{
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{
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name: "delete fail",
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podName: "fake-pod",
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namespace: "fake-ns",
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err: "error to delete pod fake-pod: pods \"fake-pod\" not found",
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},
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{
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name: "wait fail",
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podName: "fake-pod",
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namespace: "fake-ns",
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clientObj: []runtime.Object{podObject},
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reactors: []reactor{
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{
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verb: "get",
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resource: "pods",
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reactorFunc: func(action clientTesting.Action) (handled bool, ret runtime.Object, err error) {
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return true, nil, errors.New("fake-get-error")
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},
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},
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},
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err: "error to assure pod is deleted, fake-pod: error to get pod fake-pod: fake-get-error",
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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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fakeKubeClient := fake.NewSimpleClientset(test.clientObj...)
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for _, reactor := range test.reactors {
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fakeKubeClient.Fake.PrependReactor(reactor.verb, reactor.resource, reactor.reactorFunc)
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}
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var kubeClient kubernetes.Interface = fakeKubeClient
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err := EnsureDeletePod(context.Background(), kubeClient.CoreV1(), test.podName, test.namespace, time.Millisecond)
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if err != nil {
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assert.EqualError(t, err, test.err)
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} else {
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assert.NoError(t, err)
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}
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})
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}
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}
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func TestIsPodRunning(t *testing.T) {
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tests := []struct {
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name string
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pod *corev1api.Pod
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err string
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}{
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{
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name: "pod is nil",
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err: "invalid input pod",
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},
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{
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name: "pod is not scheduled",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Status: corev1api.PodStatus{
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Phase: "fake-phase",
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},
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},
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err: "pod is not scheduled, name=fake-pod, namespace=fake-ns, phase=fake-phase",
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},
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{
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name: "pod is not running",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: "fake-phase",
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},
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},
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err: "pod is not in the expected status, name=fake-pod, namespace=fake-ns, phase=fake-phase: pod is not running",
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},
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{
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name: "pod is being deleted",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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DeletionTimestamp: &metav1.Time{Time: time.Now()},
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: corev1api.PodRunning,
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},
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},
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err: "pod is being terminated, name=fake-pod, namespace=fake-ns, phase=Running",
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},
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{
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name: "success",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: corev1api.PodRunning,
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},
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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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err := IsPodRunning(test.pod)
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if err != nil {
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assert.EqualError(t, err, test.err)
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} else {
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assert.NoError(t, err)
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}
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})
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}
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}
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func TestIsPodScheduled(t *testing.T) {
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tests := []struct {
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name string
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pod *corev1api.Pod
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err string
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}{
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{
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name: "pod is nil",
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err: "invalid input pod",
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},
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{
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name: "pod is not scheduled",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Status: corev1api.PodStatus{
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Phase: "fake-phase",
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},
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},
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err: "pod is not scheduled, name=fake-pod, namespace=fake-ns, phase=fake-phase",
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},
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{
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name: "pod is not running or pending",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: "fake-phase",
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},
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},
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err: "pod is not in the expected status, name=fake-pod, namespace=fake-ns, phase=fake-phase: pod is not running or pending",
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},
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{
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name: "pod is being deleted",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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DeletionTimestamp: &metav1.Time{Time: time.Now()},
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: corev1api.PodRunning,
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},
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},
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err: "pod is being terminated, name=fake-pod, namespace=fake-ns, phase=Running",
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},
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{
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name: "success on running",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: corev1api.PodRunning,
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},
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},
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},
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{
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name: "success on pending",
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pod: &corev1api.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Namespace: "fake-ns",
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Name: "fake-pod",
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},
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Spec: corev1api.PodSpec{
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NodeName: "fake-node",
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},
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Status: corev1api.PodStatus{
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Phase: corev1api.PodPending,
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},
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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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err := IsPodScheduled(test.pod)
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if err != nil {
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assert.EqualError(t, err, test.err)
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} else {
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assert.NoError(t, err)
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}
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})
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}
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}
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func TestDeletePodIfAny(t *testing.T) {
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tests := []struct {
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name string
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podName string
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podNamespace string
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kubeClientObj []runtime.Object
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kubeReactors []reactor
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logMessage string
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logLevel string
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logError string
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}{
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{
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name: "get fail",
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podName: "fake-pod",
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podNamespace: "fake-namespace",
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logMessage: "Abort deleting pod, it doesn't exist fake-namespace/fake-pod",
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logLevel: "level=debug",
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},
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{
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name: "delete fail",
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podName: "fake-pod",
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podNamespace: "fake-namespace",
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kubeReactors: []reactor{
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{
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verb: "delete",
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resource: "pods",
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reactorFunc: func(action clientTesting.Action) (handled bool, ret runtime.Object, err error) {
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return true, nil, errors.New("fake-delete-error")
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},
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},
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},
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logMessage: "Failed to delete pod fake-namespace/fake-pod",
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logLevel: "level=error",
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logError: "error=fake-delete-error",
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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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fakeKubeClient := fake.NewSimpleClientset(test.kubeClientObj...)
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for _, reactor := range test.kubeReactors {
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fakeKubeClient.Fake.PrependReactor(reactor.verb, reactor.resource, reactor.reactorFunc)
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}
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var kubeClient kubernetes.Interface = fakeKubeClient
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logMessage := ""
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DeletePodIfAny(context.Background(), kubeClient.CoreV1(), test.podName, test.podNamespace, velerotest.NewSingleLogger(&logMessage))
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if len(test.logMessage) > 0 {
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assert.Contains(t, logMessage, test.logMessage)
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}
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if len(test.logLevel) > 0 {
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assert.Contains(t, logMessage, test.logLevel)
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}
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if len(test.logError) > 0 {
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assert.Contains(t, logMessage, test.logError)
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}
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})
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}
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}
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func TestIsPodUnrecoverable(t *testing.T) {
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tests := []struct {
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name string
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pod *corev1api.Pod
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want bool
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}{
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{
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name: "pod is in failed state",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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Phase: corev1api.PodFailed,
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},
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},
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want: true,
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},
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{
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name: "pod is in unknown state",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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Phase: corev1api.PodUnknown,
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},
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},
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want: true,
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},
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{
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name: "container image pull failure",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{State: corev1api.ContainerState{Waiting: &corev1api.ContainerStateWaiting{Reason: "ImagePullBackOff"}}},
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},
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},
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},
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want: true,
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},
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{
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name: "container image pull failure with different reason",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{State: corev1api.ContainerState{Waiting: &corev1api.ContainerStateWaiting{Reason: "ErrImageNeverPull"}}},
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},
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},
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},
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want: true,
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},
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{
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name: "container image pull failure with different reason",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{State: corev1api.ContainerState{Waiting: &corev1api.ContainerStateWaiting{Reason: "OtherReason"}}},
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},
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},
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},
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want: false,
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},
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{
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name: "pod is normal",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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Phase: corev1api.PodRunning,
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ContainerStatuses: []corev1api.ContainerStatus{
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{Ready: true, State: corev1api.ContainerState{Running: &corev1api.ContainerStateRunning{}}},
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},
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},
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},
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want: false,
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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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got, _ := IsPodUnrecoverable(test.pod, velerotest.NewLogger())
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assert.Equal(t, test.want, got)
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})
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}
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}
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func TestGetPodTerminateMessage(t *testing.T) {
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tests := []struct {
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name string
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pod *corev1api.Pod
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message string
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}{
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{
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name: "empty message when no container status",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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Phase: corev1api.PodFailed,
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},
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},
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},
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{
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name: "empty message when no termination status",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{Name: "container-1", State: corev1api.ContainerState{Waiting: &corev1api.ContainerStateWaiting{Reason: "ImagePullBackOff"}}},
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},
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},
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},
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},
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{
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name: "empty message when no termination message",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{Name: "container-1", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Reason: "fake-reason"}}},
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},
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},
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},
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},
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{
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name: "with termination message",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{Name: "container-1", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-1"}}},
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{Name: "container-2", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-2"}}},
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{Name: "container-3", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-3"}}},
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},
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},
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},
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message: "message-1/message-2/message-3/",
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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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message := GetPodTerminateMessage(test.pod)
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assert.Equal(t, test.message, message)
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})
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}
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}
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func TestGetPodContainerTerminateMessage(t *testing.T) {
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tests := []struct {
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name string
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pod *corev1api.Pod
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container string
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message string
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}{
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{
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name: "empty message when no container status",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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Phase: corev1api.PodFailed,
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},
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},
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},
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{
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name: "empty message when no termination status",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{Name: "container-1", State: corev1api.ContainerState{Waiting: &corev1api.ContainerStateWaiting{Reason: "ImagePullBackOff"}}},
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},
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},
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},
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container: "container-1",
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},
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{
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name: "empty message when no termination message",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{Name: "container-1", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Reason: "fake-reason"}}},
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},
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},
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},
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container: "container-1",
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},
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{
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name: "not matched container name",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
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{Name: "container-1", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-1"}}},
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{Name: "container-2", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-2"}}},
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{Name: "container-3", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-3"}}},
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},
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},
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},
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container: "container-0",
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},
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{
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name: "with termination message",
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pod: &corev1api.Pod{
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Status: corev1api.PodStatus{
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ContainerStatuses: []corev1api.ContainerStatus{
|
|
{Name: "container-1", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-1"}}},
|
|
{Name: "container-2", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-2"}}},
|
|
{Name: "container-3", State: corev1api.ContainerState{Terminated: &corev1api.ContainerStateTerminated{Message: "message-3"}}},
|
|
},
|
|
},
|
|
},
|
|
container: "container-2",
|
|
message: "message-2",
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
message := GetPodContainerTerminateMessage(test.pod, test.container)
|
|
assert.Equal(t, test.message, message)
|
|
})
|
|
}
|
|
}
|
|
|
|
type fakePodLog struct {
|
|
getError error
|
|
readError error
|
|
beginWriteError error
|
|
endWriteError error
|
|
writeError error
|
|
logMessage string
|
|
outputMessage string
|
|
readPos int
|
|
}
|
|
|
|
func (fp *fakePodLog) GetPodLogReader(ctx context.Context, podGetter corev1client.CoreV1Interface, pod string, namespace string, logOptions *corev1api.PodLogOptions) (io.ReadCloser, error) {
|
|
if fp.getError != nil {
|
|
return nil, fp.getError
|
|
}
|
|
|
|
return fp, nil
|
|
}
|
|
|
|
func (fp *fakePodLog) Read(p []byte) (n int, err error) {
|
|
if fp.readError != nil {
|
|
return -1, fp.readError
|
|
}
|
|
|
|
if fp.readPos == len(fp.logMessage) {
|
|
return 0, io.EOF
|
|
}
|
|
|
|
copy(p, []byte(fp.logMessage))
|
|
fp.readPos += len(fp.logMessage)
|
|
|
|
return len(fp.logMessage), nil
|
|
}
|
|
|
|
func (fp *fakePodLog) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func (fp *fakePodLog) Write(p []byte) (n int, err error) {
|
|
message := string(p)
|
|
if strings.Contains(message, "begin pod logs") {
|
|
if fp.beginWriteError != nil {
|
|
return -1, fp.beginWriteError
|
|
}
|
|
} else if strings.Contains(message, "end pod logs") {
|
|
if fp.endWriteError != nil {
|
|
return -1, fp.endWriteError
|
|
}
|
|
} else {
|
|
if fp.writeError != nil {
|
|
return -1, fp.writeError
|
|
}
|
|
}
|
|
|
|
fp.outputMessage += message
|
|
|
|
return len(message), nil
|
|
}
|
|
|
|
func TestCollectPodLogs(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
pod string
|
|
container string
|
|
getError error
|
|
readError error
|
|
beginWriteError error
|
|
endWriteError error
|
|
writeError error
|
|
readMessage string
|
|
message string
|
|
expectErr string
|
|
}{
|
|
{
|
|
name: "error to write begin indicator",
|
|
beginWriteError: errors.New("fake-write-error-01"),
|
|
expectErr: "error to write begin pod log indicator: fake-write-error-01",
|
|
},
|
|
{
|
|
name: "error to get log",
|
|
pod: "fake-pod",
|
|
container: "fake-container",
|
|
getError: errors.New("fake-get-error"),
|
|
message: "***************************begin pod logs[fake-pod/fake-container]***************************\nNo present log retrieved, err: fake-get-error\n***************************end pod logs[fake-pod/fake-container]***************************\n",
|
|
},
|
|
{
|
|
name: "error to read pod log",
|
|
pod: "fake-pod",
|
|
container: "fake-container",
|
|
readError: errors.New("fake-read-error"),
|
|
expectErr: "error to copy input: fake-read-error",
|
|
},
|
|
{
|
|
name: "error to write pod log",
|
|
pod: "fake-pod",
|
|
container: "fake-container",
|
|
writeError: errors.New("fake-write-error-03"),
|
|
readMessage: "fake pod message 01\n fake pod message 02\n fake pod message 03\n",
|
|
expectErr: "error to copy input: fake-write-error-03",
|
|
},
|
|
{
|
|
name: "error to write end indicator",
|
|
pod: "fake-pod",
|
|
container: "fake-container",
|
|
endWriteError: errors.New("fake-write-error-02"),
|
|
readMessage: "fake pod message 01\n fake pod message 02\n fake pod message 03\n",
|
|
expectErr: "error to write end pod log indicator: fake-write-error-02",
|
|
},
|
|
{
|
|
name: "succeed",
|
|
pod: "fake-pod",
|
|
container: "fake-container",
|
|
readMessage: "fake pod message 01\n fake pod message 02\n fake pod message 03\n",
|
|
message: "***************************begin pod logs[fake-pod/fake-container]***************************\nfake pod message 01\n fake pod message 02\n fake pod message 03\n***************************end pod logs[fake-pod/fake-container]***************************\n",
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
fp := &fakePodLog{
|
|
getError: test.getError,
|
|
readError: test.readError,
|
|
beginWriteError: test.beginWriteError,
|
|
endWriteError: test.endWriteError,
|
|
writeError: test.writeError,
|
|
logMessage: test.readMessage,
|
|
}
|
|
podLogReaderGetter = fp.GetPodLogReader
|
|
|
|
err := CollectPodLogs(context.Background(), nil, test.pod, "", test.container, fp)
|
|
if test.expectErr != "" {
|
|
assert.EqualError(t, err, test.expectErr)
|
|
} else {
|
|
assert.NoError(t, err)
|
|
assert.Equal(t, fp.outputMessage, test.message)
|
|
}
|
|
})
|
|
}
|
|
}
|