mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-13 01:40:23 +00:00
2173 lines
69 KiB
Go
2173 lines
69 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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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 kubelet
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import (
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"fmt"
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"io/ioutil"
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"os"
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"sort"
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"testing"
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"time"
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cadvisorapi "github.com/google/cadvisor/info/v1"
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cadvisorapiv2 "github.com/google/cadvisor/info/v2"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/clock"
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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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"k8s.io/apimachinery/pkg/util/sets"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/client-go/kubernetes/fake"
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"k8s.io/client-go/tools/record"
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"k8s.io/client-go/util/flowcontrol"
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"k8s.io/kubernetes/pkg/capabilities"
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"k8s.io/kubernetes/pkg/kubelet/apis/kubeletconfig"
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cadvisortest "k8s.io/kubernetes/pkg/kubelet/cadvisor/testing"
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"k8s.io/kubernetes/pkg/kubelet/cm"
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"k8s.io/kubernetes/pkg/kubelet/config"
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"k8s.io/kubernetes/pkg/kubelet/configmap"
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kubecontainer "k8s.io/kubernetes/pkg/kubelet/container"
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containertest "k8s.io/kubernetes/pkg/kubelet/container/testing"
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"k8s.io/kubernetes/pkg/kubelet/eviction"
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"k8s.io/kubernetes/pkg/kubelet/gpu"
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"k8s.io/kubernetes/pkg/kubelet/images"
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"k8s.io/kubernetes/pkg/kubelet/lifecycle"
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"k8s.io/kubernetes/pkg/kubelet/network"
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nettest "k8s.io/kubernetes/pkg/kubelet/network/testing"
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"k8s.io/kubernetes/pkg/kubelet/pleg"
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kubepod "k8s.io/kubernetes/pkg/kubelet/pod"
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podtest "k8s.io/kubernetes/pkg/kubelet/pod/testing"
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proberesults "k8s.io/kubernetes/pkg/kubelet/prober/results"
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probetest "k8s.io/kubernetes/pkg/kubelet/prober/testing"
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"k8s.io/kubernetes/pkg/kubelet/secret"
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serverstats "k8s.io/kubernetes/pkg/kubelet/server/stats"
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"k8s.io/kubernetes/pkg/kubelet/stats"
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"k8s.io/kubernetes/pkg/kubelet/status"
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statustest "k8s.io/kubernetes/pkg/kubelet/status/testing"
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kubetypes "k8s.io/kubernetes/pkg/kubelet/types"
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"k8s.io/kubernetes/pkg/kubelet/util/queue"
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kubeletvolume "k8s.io/kubernetes/pkg/kubelet/volumemanager"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume"
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_ "k8s.io/kubernetes/pkg/volume/host_path"
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volumetest "k8s.io/kubernetes/pkg/volume/testing"
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"k8s.io/kubernetes/pkg/volume/util/volumehelper"
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"k8s.io/kubernetes/plugin/pkg/scheduler/schedulercache"
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)
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func init() {
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utilruntime.ReallyCrash = true
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}
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const (
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testKubeletHostname = "127.0.0.1"
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testKubeletHostIP = "127.0.0.1"
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// TODO(harry) any global place for these two?
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// Reasonable size range of all container images. 90%ile of images on dockerhub drops into this range.
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minImgSize int64 = 23 * 1024 * 1024
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maxImgSize int64 = 1000 * 1024 * 1024
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)
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// fakeImageGCManager is a fake image gc manager for testing. It will return image
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// list from fake runtime directly instead of caching it.
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type fakeImageGCManager struct {
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fakeImageService kubecontainer.ImageService
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images.ImageGCManager
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}
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func (f *fakeImageGCManager) GetImageList() ([]kubecontainer.Image, error) {
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return f.fakeImageService.ListImages()
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}
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type TestKubelet struct {
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kubelet *Kubelet
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fakeRuntime *containertest.FakeRuntime
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fakeCadvisor *cadvisortest.Mock
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fakeKubeClient *fake.Clientset
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fakeMirrorClient *podtest.FakeMirrorClient
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fakeClock *clock.FakeClock
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mounter mount.Interface
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volumePlugin *volumetest.FakeVolumePlugin
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}
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func (tk *TestKubelet) Cleanup() {
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if tk.kubelet != nil {
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os.RemoveAll(tk.kubelet.rootDirectory)
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}
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}
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func (tk *TestKubelet) chainMock() {
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tk.fakeCadvisor.On("ImagesFsInfo").Return(cadvisorapiv2.FsInfo{}, nil)
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tk.fakeCadvisor.On("RootFsInfo").Return(cadvisorapiv2.FsInfo{}, nil)
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}
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// newTestKubelet returns test kubelet with two images.
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func newTestKubelet(t *testing.T, controllerAttachDetachEnabled bool) *TestKubelet {
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imageList := []kubecontainer.Image{
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{
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ID: "abc",
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RepoTags: []string{"gcr.io/google_containers:v1", "gcr.io/google_containers:v2"},
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Size: 123,
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},
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{
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ID: "efg",
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RepoTags: []string{"gcr.io/google_containers:v3", "gcr.io/google_containers:v4"},
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Size: 456,
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},
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}
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return newTestKubeletWithImageList(t, imageList, controllerAttachDetachEnabled)
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}
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func newTestKubeletWithImageList(
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t *testing.T,
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imageList []kubecontainer.Image,
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controllerAttachDetachEnabled bool) *TestKubelet {
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fakeRuntime := &containertest.FakeRuntime{}
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fakeRuntime.RuntimeType = "test"
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fakeRuntime.VersionInfo = "1.5.0"
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fakeRuntime.ImageList = imageList
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// Set ready conditions by default.
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fakeRuntime.RuntimeStatus = &kubecontainer.RuntimeStatus{
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Conditions: []kubecontainer.RuntimeCondition{
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{Type: "RuntimeReady", Status: true},
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{Type: "NetworkReady", Status: true},
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},
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}
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fakeRecorder := &record.FakeRecorder{}
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fakeKubeClient := &fake.Clientset{}
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kubelet := &Kubelet{}
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kubelet.recorder = fakeRecorder
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kubelet.kubeClient = fakeKubeClient
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kubelet.heartbeatClient = fakeKubeClient.CoreV1()
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kubelet.os = &containertest.FakeOS{}
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kubelet.mounter = &mount.FakeMounter{}
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kubelet.hostname = testKubeletHostname
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kubelet.nodeName = types.NodeName(testKubeletHostname)
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kubelet.runtimeState = newRuntimeState(maxWaitForContainerRuntime)
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kubelet.runtimeState.setNetworkState(nil)
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kubelet.networkPlugin, _ = network.InitNetworkPlugin([]network.NetworkPlugin{}, "", nettest.NewFakeHost(nil), kubeletconfig.HairpinNone, "", 1440)
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if tempDir, err := ioutil.TempDir("/tmp", "kubelet_test."); err != nil {
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t.Fatalf("can't make a temp rootdir: %v", err)
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} else {
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kubelet.rootDirectory = tempDir
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}
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if err := os.MkdirAll(kubelet.rootDirectory, 0750); err != nil {
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t.Fatalf("can't mkdir(%q): %v", kubelet.rootDirectory, err)
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}
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kubelet.sourcesReady = config.NewSourcesReady(func(_ sets.String) bool { return true })
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kubelet.masterServiceNamespace = metav1.NamespaceDefault
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kubelet.serviceLister = testServiceLister{}
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kubelet.nodeInfo = testNodeInfo{
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nodes: []*v1.Node{
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{
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ObjectMeta: metav1.ObjectMeta{
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Name: string(kubelet.nodeName),
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},
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Status: v1.NodeStatus{
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Conditions: []v1.NodeCondition{
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{
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Type: v1.NodeReady,
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Status: v1.ConditionTrue,
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Reason: "Ready",
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Message: "Node ready",
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},
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},
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Addresses: []v1.NodeAddress{
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{
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Type: v1.NodeInternalIP,
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Address: testKubeletHostIP,
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},
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},
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},
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},
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},
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}
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kubelet.recorder = fakeRecorder
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if err := kubelet.setupDataDirs(); err != nil {
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t.Fatalf("can't initialize kubelet data dirs: %v", err)
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}
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kubelet.daemonEndpoints = &v1.NodeDaemonEndpoints{}
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mockCadvisor := &cadvisortest.Mock{}
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kubelet.cadvisor = mockCadvisor
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fakeMirrorClient := podtest.NewFakeMirrorClient()
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secretManager := secret.NewSimpleSecretManager(kubelet.kubeClient)
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kubelet.secretManager = secretManager
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configMapManager := configmap.NewSimpleConfigMapManager(kubelet.kubeClient)
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kubelet.configMapManager = configMapManager
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kubelet.podManager = kubepod.NewBasicPodManager(fakeMirrorClient, kubelet.secretManager, kubelet.configMapManager)
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kubelet.statusManager = status.NewManager(fakeKubeClient, kubelet.podManager, &statustest.FakePodDeletionSafetyProvider{})
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kubelet.containerRuntime = fakeRuntime
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kubelet.runtimeCache = containertest.NewFakeRuntimeCache(kubelet.containerRuntime)
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kubelet.reasonCache = NewReasonCache()
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kubelet.podCache = containertest.NewFakeCache(kubelet.containerRuntime)
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kubelet.podWorkers = &fakePodWorkers{
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syncPodFn: kubelet.syncPod,
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cache: kubelet.podCache,
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t: t,
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}
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kubelet.probeManager = probetest.FakeManager{}
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kubelet.livenessManager = proberesults.NewManager()
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kubelet.containerManager = cm.NewStubContainerManager()
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fakeNodeRef := &v1.ObjectReference{
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Kind: "Node",
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Name: testKubeletHostname,
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UID: types.UID(testKubeletHostname),
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Namespace: "",
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}
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volumeStatsAggPeriod := time.Second * 10
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kubelet.resourceAnalyzer = serverstats.NewResourceAnalyzer(kubelet, volumeStatsAggPeriod)
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kubelet.StatsProvider = stats.NewCadvisorStatsProvider(
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kubelet.cadvisor,
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kubelet.resourceAnalyzer,
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kubelet.podManager,
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kubelet.runtimeCache,
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fakeRuntime)
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fakeImageGCPolicy := images.ImageGCPolicy{
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HighThresholdPercent: 90,
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LowThresholdPercent: 80,
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}
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imageGCManager, err := images.NewImageGCManager(fakeRuntime, kubelet.StatsProvider, fakeRecorder, fakeNodeRef, fakeImageGCPolicy)
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assert.NoError(t, err)
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kubelet.imageManager = &fakeImageGCManager{
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fakeImageService: fakeRuntime,
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ImageGCManager: imageGCManager,
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}
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fakeClock := clock.NewFakeClock(time.Now())
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kubelet.backOff = flowcontrol.NewBackOff(time.Second, time.Minute)
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kubelet.backOff.Clock = fakeClock
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kubelet.podKillingCh = make(chan *kubecontainer.PodPair, 20)
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kubelet.resyncInterval = 10 * time.Second
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kubelet.workQueue = queue.NewBasicWorkQueue(fakeClock)
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// Relist period does not affect the tests.
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kubelet.pleg = pleg.NewGenericPLEG(fakeRuntime, 100, time.Hour, nil, clock.RealClock{})
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kubelet.clock = fakeClock
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kubelet.setNodeStatusFuncs = kubelet.defaultNodeStatusFuncs()
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nodeRef := &v1.ObjectReference{
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Kind: "Node",
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Name: string(kubelet.nodeName),
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UID: types.UID(kubelet.nodeName),
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Namespace: "",
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}
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// setup eviction manager
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evictionManager, evictionAdmitHandler := eviction.NewManager(kubelet.resourceAnalyzer, eviction.Config{}, killPodNow(kubelet.podWorkers, fakeRecorder), kubelet.imageManager, kubelet.containerGC, fakeRecorder, nodeRef, kubelet.clock)
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kubelet.evictionManager = evictionManager
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kubelet.admitHandlers.AddPodAdmitHandler(evictionAdmitHandler)
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// Add this as cleanup predicate pod admitter
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kubelet.admitHandlers.AddPodAdmitHandler(lifecycle.NewPredicateAdmitHandler(kubelet.getNodeAnyWay, lifecycle.NewAdmissionFailureHandlerStub(), kubelet.containerManager.UpdatePluginResources))
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plug := &volumetest.FakeVolumePlugin{PluginName: "fake", Host: nil}
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var prober volume.DynamicPluginProber = nil // TODO (#51147) inject mock
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kubelet.volumePluginMgr, err =
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NewInitializedVolumePluginMgr(kubelet, kubelet.secretManager, kubelet.configMapManager, []volume.VolumePlugin{plug}, prober)
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require.NoError(t, err, "Failed to initialize VolumePluginMgr")
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kubelet.mounter = &mount.FakeMounter{}
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kubelet.volumeManager = kubeletvolume.NewVolumeManager(
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controllerAttachDetachEnabled,
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kubelet.nodeName,
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kubelet.podManager,
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kubelet.statusManager,
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fakeKubeClient,
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kubelet.volumePluginMgr,
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fakeRuntime,
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kubelet.mounter,
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kubelet.getPodsDir(),
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kubelet.recorder,
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false, /* experimentalCheckNodeCapabilitiesBeforeMount*/
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false /* keepTerminatedPodVolumes */)
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// enable active deadline handler
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activeDeadlineHandler, err := newActiveDeadlineHandler(kubelet.statusManager, kubelet.recorder, kubelet.clock)
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require.NoError(t, err, "Can't initialize active deadline handler")
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kubelet.AddPodSyncLoopHandler(activeDeadlineHandler)
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kubelet.AddPodSyncHandler(activeDeadlineHandler)
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kubelet.gpuManager = gpu.NewGPUManagerStub()
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return &TestKubelet{kubelet, fakeRuntime, mockCadvisor, fakeKubeClient, fakeMirrorClient, fakeClock, nil, plug}
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}
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func newTestPods(count int) []*v1.Pod {
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pods := make([]*v1.Pod, count)
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for i := 0; i < count; i++ {
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pods[i] = &v1.Pod{
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Spec: v1.PodSpec{
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HostNetwork: true,
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},
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ObjectMeta: metav1.ObjectMeta{
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UID: types.UID(10000 + i),
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Name: fmt.Sprintf("pod%d", i),
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},
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}
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}
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return pods
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}
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var emptyPodUIDs map[types.UID]kubetypes.SyncPodType
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func TestSyncLoopAbort(t *testing.T) {
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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defer testKubelet.Cleanup()
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kubelet := testKubelet.kubelet
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kubelet.runtimeState.setRuntimeSync(time.Now())
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// The syncLoop waits on time.After(resyncInterval), set it really big so that we don't race for
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// the channel close
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kubelet.resyncInterval = time.Second * 30
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ch := make(chan kubetypes.PodUpdate)
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close(ch)
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// sanity check (also prevent this test from hanging in the next step)
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ok := kubelet.syncLoopIteration(ch, kubelet, make(chan time.Time), make(chan time.Time), make(chan *pleg.PodLifecycleEvent, 1))
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require.False(t, ok, "Expected syncLoopIteration to return !ok since update chan was closed")
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// this should terminate immediately; if it hangs then the syncLoopIteration isn't aborting properly
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kubelet.syncLoop(ch, kubelet)
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}
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func TestSyncPodsStartPod(t *testing.T) {
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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defer testKubelet.Cleanup()
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kubelet := testKubelet.kubelet
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fakeRuntime := testKubelet.fakeRuntime
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pods := []*v1.Pod{
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podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
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Containers: []v1.Container{
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{Name: "bar"},
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},
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}),
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}
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kubelet.podManager.SetPods(pods)
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kubelet.HandlePodSyncs(pods)
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fakeRuntime.AssertStartedPods([]string{string(pods[0].UID)})
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}
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func TestSyncPodsDeletesWhenSourcesAreReady(t *testing.T) {
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ready := false
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testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
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defer testKubelet.Cleanup()
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fakeRuntime := testKubelet.fakeRuntime
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kubelet := testKubelet.kubelet
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kubelet.sourcesReady = config.NewSourcesReady(func(_ sets.String) bool { return ready })
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fakeRuntime.PodList = []*containertest.FakePod{
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{Pod: &kubecontainer.Pod{
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ID: "12345678",
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Name: "foo",
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Namespace: "new",
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Containers: []*kubecontainer.Container{
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{Name: "bar"},
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},
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}},
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}
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kubelet.HandlePodCleanups()
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// Sources are not ready yet. Don't remove any pods.
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fakeRuntime.AssertKilledPods([]string{})
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ready = true
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kubelet.HandlePodCleanups()
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// Sources are ready. Remove unwanted pods.
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fakeRuntime.AssertKilledPods([]string{"12345678"})
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}
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|
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type testNodeLister struct {
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nodes []*v1.Node
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}
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|
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type testNodeInfo struct {
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nodes []*v1.Node
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}
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|
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func (ls testNodeInfo) GetNodeInfo(id string) (*v1.Node, error) {
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for _, node := range ls.nodes {
|
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if node.Name == id {
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return node, nil
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}
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}
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return nil, fmt.Errorf("Node with name: %s does not exist", id)
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}
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|
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func (ls testNodeLister) List(selector labels.Selector) ([]*v1.Node, error) {
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return ls.nodes, nil
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}
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|
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func checkPodStatus(t *testing.T, kl *Kubelet, pod *v1.Pod, phase v1.PodPhase) {
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status, found := kl.statusManager.GetPodStatus(pod.UID)
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require.True(t, found, "Status of pod %q is not found in the status map", pod.UID)
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require.Equal(t, phase, status.Phase)
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}
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|
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// Tests that we handle port conflicts correctly by setting the failed status in status map.
|
|
func TestHandlePortConflicts(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
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defer testKubelet.Cleanup()
|
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testKubelet.chainMock()
|
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kl := testKubelet.kubelet
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|
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kl.nodeInfo = testNodeInfo{nodes: []*v1.Node{
|
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{
|
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ObjectMeta: metav1.ObjectMeta{Name: string(kl.nodeName)},
|
|
Status: v1.NodeStatus{
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourcePods: *resource.NewQuantity(110, resource.DecimalSI),
|
|
},
|
|
},
|
|
},
|
|
}}
|
|
|
|
spec := v1.PodSpec{NodeName: string(kl.nodeName), Containers: []v1.Container{{Ports: []v1.ContainerPort{{HostPort: 80}}}}}
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNsSpec("123456789", "newpod", "foo", spec),
|
|
podWithUIDNameNsSpec("987654321", "oldpod", "foo", spec),
|
|
}
|
|
// Make sure the Pods are in the reverse order of creation time.
|
|
pods[1].CreationTimestamp = metav1.NewTime(time.Now())
|
|
pods[0].CreationTimestamp = metav1.NewTime(time.Now().Add(1 * time.Second))
|
|
// The newer pod should be rejected.
|
|
notfittingPod := pods[0]
|
|
fittingPod := pods[1]
|
|
|
|
kl.HandlePodAdditions(pods)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, notfittingPod, v1.PodFailed)
|
|
checkPodStatus(t, kl, fittingPod, v1.PodPending)
|
|
}
|
|
|
|
// Tests that we handle host name conflicts correctly by setting the failed status in status map.
|
|
func TestHandleHostNameConflicts(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
|
|
kl.nodeInfo = testNodeInfo{nodes: []*v1.Node{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{Name: "127.0.0.1"},
|
|
Status: v1.NodeStatus{
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourcePods: *resource.NewQuantity(110, resource.DecimalSI),
|
|
},
|
|
},
|
|
},
|
|
}}
|
|
|
|
// default NodeName in test is 127.0.0.1
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNsSpec("123456789", "notfittingpod", "foo", v1.PodSpec{NodeName: "127.0.0.2"}),
|
|
podWithUIDNameNsSpec("987654321", "fittingpod", "foo", v1.PodSpec{NodeName: "127.0.0.1"}),
|
|
}
|
|
|
|
notfittingPod := pods[0]
|
|
fittingPod := pods[1]
|
|
|
|
kl.HandlePodAdditions(pods)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, notfittingPod, v1.PodFailed)
|
|
checkPodStatus(t, kl, fittingPod, v1.PodPending)
|
|
}
|
|
|
|
// Tests that we handle not matching labels selector correctly by setting the failed status in status map.
|
|
func TestHandleNodeSelector(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
nodes := []*v1.Node{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname, Labels: map[string]string{"key": "B"}},
|
|
Status: v1.NodeStatus{
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourcePods: *resource.NewQuantity(110, resource.DecimalSI),
|
|
},
|
|
},
|
|
},
|
|
}
|
|
kl.nodeInfo = testNodeInfo{nodes: nodes}
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNsSpec("123456789", "podA", "foo", v1.PodSpec{NodeSelector: map[string]string{"key": "A"}}),
|
|
podWithUIDNameNsSpec("987654321", "podB", "foo", v1.PodSpec{NodeSelector: map[string]string{"key": "B"}}),
|
|
}
|
|
// The first pod should be rejected.
|
|
notfittingPod := pods[0]
|
|
fittingPod := pods[1]
|
|
|
|
kl.HandlePodAdditions(pods)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, notfittingPod, v1.PodFailed)
|
|
checkPodStatus(t, kl, fittingPod, v1.PodPending)
|
|
}
|
|
|
|
// Tests that we handle exceeded resources correctly by setting the failed status in status map.
|
|
func TestHandleMemExceeded(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
nodes := []*v1.Node{
|
|
{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
|
|
Status: v1.NodeStatus{Capacity: v1.ResourceList{}, Allocatable: v1.ResourceList{
|
|
v1.ResourceCPU: *resource.NewMilliQuantity(10, resource.DecimalSI),
|
|
v1.ResourceMemory: *resource.NewQuantity(100, resource.BinarySI),
|
|
v1.ResourcePods: *resource.NewQuantity(40, resource.DecimalSI),
|
|
}}},
|
|
}
|
|
kl.nodeInfo = testNodeInfo{nodes: nodes}
|
|
|
|
spec := v1.PodSpec{NodeName: string(kl.nodeName),
|
|
Containers: []v1.Container{{Resources: v1.ResourceRequirements{
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceMemory: resource.MustParse("90"),
|
|
},
|
|
}}},
|
|
}
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNsSpec("123456789", "newpod", "foo", spec),
|
|
podWithUIDNameNsSpec("987654321", "oldpod", "foo", spec),
|
|
}
|
|
// Make sure the Pods are in the reverse order of creation time.
|
|
pods[1].CreationTimestamp = metav1.NewTime(time.Now())
|
|
pods[0].CreationTimestamp = metav1.NewTime(time.Now().Add(1 * time.Second))
|
|
// The newer pod should be rejected.
|
|
notfittingPod := pods[0]
|
|
fittingPod := pods[1]
|
|
|
|
kl.HandlePodAdditions(pods)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, notfittingPod, v1.PodFailed)
|
|
checkPodStatus(t, kl, fittingPod, v1.PodPending)
|
|
}
|
|
|
|
// Tests that we handle result of interface UpdatePluginResources correctly
|
|
// by setting corresponding status in status map.
|
|
func TestHandlePluginResources(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
|
|
adjustedResource := v1.ResourceName("domain1.com/adjustedResource")
|
|
unadjustedResouce := v1.ResourceName("domain2.com/unadjustedResouce")
|
|
failedResource := v1.ResourceName("domain2.com/failedResource")
|
|
resourceQuantity1 := *resource.NewQuantity(int64(1), resource.DecimalSI)
|
|
resourceQuantity2 := *resource.NewQuantity(int64(2), resource.DecimalSI)
|
|
resourceQuantityInvalid := *resource.NewQuantity(int64(-1), resource.DecimalSI)
|
|
allowedPodQuantity := *resource.NewQuantity(int64(10), resource.DecimalSI)
|
|
nodes := []*v1.Node{
|
|
{ObjectMeta: metav1.ObjectMeta{Name: testKubeletHostname},
|
|
Status: v1.NodeStatus{Capacity: v1.ResourceList{}, Allocatable: v1.ResourceList{
|
|
adjustedResource: resourceQuantity1,
|
|
unadjustedResouce: resourceQuantity1,
|
|
v1.ResourcePods: allowedPodQuantity,
|
|
}}},
|
|
}
|
|
kl.nodeInfo = testNodeInfo{nodes: nodes}
|
|
|
|
updatePluginResourcesFunc := func(node *schedulercache.NodeInfo, attrs *lifecycle.PodAdmitAttributes) error {
|
|
// Maps from resourceName to the value we use to set node.allocatableResource[resourceName].
|
|
// A resource with invalid value (< 0) causes the function to return an error
|
|
// to emulate resource Allocation failure.
|
|
// Resources not contained in this map will have their node.allocatableResource
|
|
// quantity unchanged.
|
|
updateResourceMap := map[v1.ResourceName]resource.Quantity{
|
|
adjustedResource: resourceQuantity2,
|
|
failedResource: resourceQuantityInvalid,
|
|
}
|
|
pod := attrs.Pod
|
|
allocatableResource := node.AllocatableResource()
|
|
newAllocatableResource := allocatableResource.Clone()
|
|
for _, container := range pod.Spec.Containers {
|
|
for resource := range container.Resources.Requests {
|
|
newQuantity, exist := updateResourceMap[resource]
|
|
if !exist {
|
|
continue
|
|
}
|
|
if newQuantity.Value() < 0 {
|
|
return fmt.Errorf("Allocation failed")
|
|
}
|
|
newAllocatableResource.ScalarResources[resource] = newQuantity.Value()
|
|
}
|
|
}
|
|
node.SetAllocatableResource(newAllocatableResource)
|
|
return nil
|
|
}
|
|
|
|
// add updatePluginResourcesFunc to admission handler, to test it's behavior.
|
|
kl.admitHandlers = lifecycle.PodAdmitHandlers{}
|
|
kl.admitHandlers.AddPodAdmitHandler(lifecycle.NewPredicateAdmitHandler(kl.getNodeAnyWay, lifecycle.NewAdmissionFailureHandlerStub(), updatePluginResourcesFunc))
|
|
|
|
// pod requiring adjustedResource can be successfully allocated because updatePluginResourcesFunc
|
|
// adjusts node.allocatableResource for this resource to a sufficient value.
|
|
fittingPodspec := v1.PodSpec{NodeName: string(kl.nodeName),
|
|
Containers: []v1.Container{{Resources: v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
adjustedResource: resourceQuantity2,
|
|
},
|
|
Requests: v1.ResourceList{
|
|
adjustedResource: resourceQuantity2,
|
|
},
|
|
}}},
|
|
}
|
|
// pod requiring unadjustedResouce with insufficient quantity will still fail PredicateAdmit.
|
|
exceededPodSpec := v1.PodSpec{NodeName: string(kl.nodeName),
|
|
Containers: []v1.Container{{Resources: v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
unadjustedResouce: resourceQuantity2,
|
|
},
|
|
Requests: v1.ResourceList{
|
|
unadjustedResouce: resourceQuantity2,
|
|
},
|
|
}}},
|
|
}
|
|
// pod requiring failedResource will fail with the resource failed to be allocated.
|
|
failedPodSpec := v1.PodSpec{NodeName: string(kl.nodeName),
|
|
Containers: []v1.Container{{Resources: v1.ResourceRequirements{
|
|
Limits: v1.ResourceList{
|
|
failedResource: resourceQuantity1,
|
|
},
|
|
Requests: v1.ResourceList{
|
|
failedResource: resourceQuantity1,
|
|
},
|
|
}}},
|
|
}
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNsSpec("123", "fittingpod", "foo", fittingPodspec),
|
|
podWithUIDNameNsSpec("456", "exceededpod", "foo", exceededPodSpec),
|
|
podWithUIDNameNsSpec("789", "failedpod", "foo", failedPodSpec),
|
|
}
|
|
// The latter two pod should be rejected.
|
|
fittingPod := pods[0]
|
|
exceededPod := pods[1]
|
|
failedPod := pods[2]
|
|
|
|
kl.HandlePodAdditions(pods)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, fittingPod, v1.PodPending)
|
|
checkPodStatus(t, kl, exceededPod, v1.PodFailed)
|
|
checkPodStatus(t, kl, failedPod, v1.PodFailed)
|
|
}
|
|
|
|
// TODO(filipg): This test should be removed once StatusSyncer can do garbage collection without external signal.
|
|
func TestPurgingObsoleteStatusMapEntries(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
versionInfo := &cadvisorapi.VersionInfo{
|
|
KernelVersion: "3.16.0-0.bpo.4-amd64",
|
|
ContainerOsVersion: "Debian GNU/Linux 7 (wheezy)",
|
|
DockerVersion: "1.5.0",
|
|
}
|
|
testKubelet.fakeCadvisor.On("VersionInfo").Return(versionInfo, nil)
|
|
|
|
kl := testKubelet.kubelet
|
|
pods := []*v1.Pod{
|
|
{ObjectMeta: metav1.ObjectMeta{Name: "pod1", UID: "1234"}, Spec: v1.PodSpec{Containers: []v1.Container{{Ports: []v1.ContainerPort{{HostPort: 80}}}}}},
|
|
{ObjectMeta: metav1.ObjectMeta{Name: "pod2", UID: "4567"}, Spec: v1.PodSpec{Containers: []v1.Container{{Ports: []v1.ContainerPort{{HostPort: 80}}}}}},
|
|
}
|
|
podToTest := pods[1]
|
|
// Run once to populate the status map.
|
|
kl.HandlePodAdditions(pods)
|
|
if _, found := kl.statusManager.GetPodStatus(podToTest.UID); !found {
|
|
t.Fatalf("expected to have status cached for pod2")
|
|
}
|
|
// Sync with empty pods so that the entry in status map will be removed.
|
|
kl.podManager.SetPods([]*v1.Pod{})
|
|
kl.HandlePodCleanups()
|
|
if _, found := kl.statusManager.GetPodStatus(podToTest.UID); found {
|
|
t.Fatalf("expected to not have status cached for pod2")
|
|
}
|
|
}
|
|
|
|
func TestValidateContainerLogStatus(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
containerName := "x"
|
|
testCases := []struct {
|
|
statuses []v1.ContainerStatus
|
|
success bool // whether getting logs for the container should succeed.
|
|
pSuccess bool // whether getting logs for the previous container should succeed.
|
|
}{
|
|
{
|
|
statuses: []v1.ContainerStatus{
|
|
{
|
|
Name: containerName,
|
|
State: v1.ContainerState{
|
|
Running: &v1.ContainerStateRunning{},
|
|
},
|
|
LastTerminationState: v1.ContainerState{
|
|
Terminated: &v1.ContainerStateTerminated{},
|
|
},
|
|
},
|
|
},
|
|
success: true,
|
|
pSuccess: true,
|
|
},
|
|
{
|
|
statuses: []v1.ContainerStatus{
|
|
{
|
|
Name: containerName,
|
|
State: v1.ContainerState{
|
|
Running: &v1.ContainerStateRunning{},
|
|
},
|
|
},
|
|
},
|
|
success: true,
|
|
pSuccess: false,
|
|
},
|
|
{
|
|
statuses: []v1.ContainerStatus{
|
|
{
|
|
Name: containerName,
|
|
State: v1.ContainerState{
|
|
Terminated: &v1.ContainerStateTerminated{},
|
|
},
|
|
},
|
|
},
|
|
success: true,
|
|
pSuccess: false,
|
|
},
|
|
{
|
|
statuses: []v1.ContainerStatus{
|
|
{
|
|
Name: containerName,
|
|
State: v1.ContainerState{
|
|
Waiting: &v1.ContainerStateWaiting{},
|
|
},
|
|
},
|
|
},
|
|
success: false,
|
|
pSuccess: false,
|
|
},
|
|
{
|
|
statuses: []v1.ContainerStatus{
|
|
{
|
|
Name: containerName,
|
|
State: v1.ContainerState{Waiting: &v1.ContainerStateWaiting{Reason: "ErrImagePull"}},
|
|
},
|
|
},
|
|
success: false,
|
|
pSuccess: false,
|
|
},
|
|
{
|
|
statuses: []v1.ContainerStatus{
|
|
{
|
|
Name: containerName,
|
|
State: v1.ContainerState{Waiting: &v1.ContainerStateWaiting{Reason: "ErrImagePullBackOff"}},
|
|
},
|
|
},
|
|
success: false,
|
|
pSuccess: false,
|
|
},
|
|
}
|
|
|
|
for i, tc := range testCases {
|
|
// Access the log of the most recent container
|
|
previous := false
|
|
podStatus := &v1.PodStatus{ContainerStatuses: tc.statuses}
|
|
_, err := kubelet.validateContainerLogStatus("podName", podStatus, containerName, previous)
|
|
if !tc.success {
|
|
assert.Error(t, err, fmt.Sprintf("[case %d] error", i))
|
|
} else {
|
|
assert.NoError(t, err, "[case %d] error", i)
|
|
}
|
|
// Access the log of the previous, terminated container
|
|
previous = true
|
|
_, err = kubelet.validateContainerLogStatus("podName", podStatus, containerName, previous)
|
|
if !tc.pSuccess {
|
|
assert.Error(t, err, fmt.Sprintf("[case %d] error", i))
|
|
} else {
|
|
assert.NoError(t, err, "[case %d] error", i)
|
|
}
|
|
// Access the log of a container that's not in the pod
|
|
_, err = kubelet.validateContainerLogStatus("podName", podStatus, "blah", false)
|
|
assert.Error(t, err, fmt.Sprintf("[case %d] invalid container name should cause an error", i))
|
|
}
|
|
}
|
|
|
|
func TestCreateMirrorPod(t *testing.T) {
|
|
for _, updateType := range []kubetypes.SyncPodType{kubetypes.SyncPodCreate, kubetypes.SyncPodUpdate} {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kl := testKubelet.kubelet
|
|
manager := testKubelet.fakeMirrorClient
|
|
pod := podWithUIDNameNs("12345678", "bar", "foo")
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = "file"
|
|
pods := []*v1.Pod{pod}
|
|
kl.podManager.SetPods(pods)
|
|
err := kl.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: updateType,
|
|
})
|
|
assert.NoError(t, err)
|
|
podFullName := kubecontainer.GetPodFullName(pod)
|
|
assert.True(t, manager.HasPod(podFullName), "Expected mirror pod %q to be created", podFullName)
|
|
assert.Equal(t, 1, manager.NumOfPods(), "Expected only 1 mirror pod %q, got %+v", podFullName, manager.GetPods())
|
|
}
|
|
}
|
|
|
|
func TestDeleteOutdatedMirrorPod(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kl := testKubelet.kubelet
|
|
manager := testKubelet.fakeMirrorClient
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "ns", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "1234", Image: "foo"},
|
|
},
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = "file"
|
|
|
|
// Mirror pod has an outdated spec.
|
|
mirrorPod := podWithUIDNameNsSpec("11111111", "foo", "ns", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "1234", Image: "bar"},
|
|
},
|
|
})
|
|
mirrorPod.Annotations[kubetypes.ConfigSourceAnnotationKey] = "api"
|
|
mirrorPod.Annotations[kubetypes.ConfigMirrorAnnotationKey] = "mirror"
|
|
|
|
pods := []*v1.Pod{pod, mirrorPod}
|
|
kl.podManager.SetPods(pods)
|
|
err := kl.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
mirrorPod: mirrorPod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.NoError(t, err)
|
|
name := kubecontainer.GetPodFullName(pod)
|
|
creates, deletes := manager.GetCounts(name)
|
|
if creates != 1 || deletes != 1 {
|
|
t.Errorf("expected 1 creation and 1 deletion of %q, got %d, %d", name, creates, deletes)
|
|
}
|
|
}
|
|
|
|
func TestDeleteOrphanedMirrorPods(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kl := testKubelet.kubelet
|
|
manager := testKubelet.fakeMirrorClient
|
|
orphanPods := []*v1.Pod{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "12345678",
|
|
Name: "pod1",
|
|
Namespace: "ns",
|
|
Annotations: map[string]string{
|
|
kubetypes.ConfigSourceAnnotationKey: "api",
|
|
kubetypes.ConfigMirrorAnnotationKey: "mirror",
|
|
},
|
|
},
|
|
},
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "12345679",
|
|
Name: "pod2",
|
|
Namespace: "ns",
|
|
Annotations: map[string]string{
|
|
kubetypes.ConfigSourceAnnotationKey: "api",
|
|
kubetypes.ConfigMirrorAnnotationKey: "mirror",
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
kl.podManager.SetPods(orphanPods)
|
|
// Sync with an empty pod list to delete all mirror pods.
|
|
kl.HandlePodCleanups()
|
|
assert.Len(t, manager.GetPods(), 0, "Expected 0 mirror pods")
|
|
for _, pod := range orphanPods {
|
|
name := kubecontainer.GetPodFullName(pod)
|
|
creates, deletes := manager.GetCounts(name)
|
|
if creates != 0 || deletes != 1 {
|
|
t.Errorf("expected 0 creation and one deletion of %q, got %d, %d", name, creates, deletes)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetContainerInfoForMirrorPods(t *testing.T) {
|
|
// pods contain one static and one mirror pod with the same name but
|
|
// different UIDs.
|
|
pods := []*v1.Pod{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "1234",
|
|
Name: "qux",
|
|
Namespace: "ns",
|
|
Annotations: map[string]string{
|
|
kubetypes.ConfigSourceAnnotationKey: "file",
|
|
},
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "5678",
|
|
Name: "qux",
|
|
Namespace: "ns",
|
|
Annotations: map[string]string{
|
|
kubetypes.ConfigSourceAnnotationKey: "api",
|
|
kubetypes.ConfigMirrorAnnotationKey: "mirror",
|
|
},
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
containerID := "ab2cdf"
|
|
containerPath := fmt.Sprintf("/docker/%v", containerID)
|
|
containerInfo := cadvisorapi.ContainerInfo{
|
|
ContainerReference: cadvisorapi.ContainerReference{
|
|
Name: containerPath,
|
|
},
|
|
}
|
|
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
fakeRuntime := testKubelet.fakeRuntime
|
|
mockCadvisor := testKubelet.fakeCadvisor
|
|
cadvisorReq := &cadvisorapi.ContainerInfoRequest{}
|
|
mockCadvisor.On("DockerContainer", containerID, cadvisorReq).Return(containerInfo, nil)
|
|
kubelet := testKubelet.kubelet
|
|
|
|
fakeRuntime.PodList = []*containertest.FakePod{
|
|
{Pod: &kubecontainer.Pod{
|
|
ID: "1234",
|
|
Name: "qux",
|
|
Namespace: "ns",
|
|
Containers: []*kubecontainer.Container{
|
|
{
|
|
Name: "foo",
|
|
ID: kubecontainer.ContainerID{Type: "test", ID: containerID},
|
|
},
|
|
},
|
|
}},
|
|
}
|
|
|
|
kubelet.podManager.SetPods(pods)
|
|
// Use the mirror pod UID to retrieve the stats.
|
|
stats, err := kubelet.GetContainerInfo("qux_ns", "5678", "foo", cadvisorReq)
|
|
assert.NoError(t, err)
|
|
require.NotNil(t, stats)
|
|
mockCadvisor.AssertExpectations(t)
|
|
}
|
|
|
|
func TestHostNetworkAllowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostNetworkSources: []string{kubetypes.ApiserverSource, kubetypes.FileSource},
|
|
},
|
|
})
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
HostNetwork: true,
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
|
|
kubelet.podManager.SetPods([]*v1.Pod{pod})
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.NoError(t, err, "expected pod infra creation to succeed")
|
|
}
|
|
|
|
func TestHostNetworkDisallowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostNetworkSources: []string{},
|
|
},
|
|
})
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
HostNetwork: true,
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.Error(t, err, "expected pod infra creation to fail")
|
|
}
|
|
|
|
func TestHostPIDAllowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostPIDSources: []string{kubetypes.ApiserverSource, kubetypes.FileSource},
|
|
},
|
|
})
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
HostPID: true,
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
|
|
kubelet.podManager.SetPods([]*v1.Pod{pod})
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.NoError(t, err, "expected pod infra creation to succeed")
|
|
}
|
|
|
|
func TestHostPIDDisallowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostPIDSources: []string{},
|
|
},
|
|
})
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
HostPID: true,
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.Error(t, err, "expected pod infra creation to fail")
|
|
}
|
|
|
|
func TestHostIPCAllowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostIPCSources: []string{kubetypes.ApiserverSource, kubetypes.FileSource},
|
|
},
|
|
})
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
HostIPC: true,
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
|
|
kubelet.podManager.SetPods([]*v1.Pod{pod})
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.NoError(t, err, "expected pod infra creation to succeed")
|
|
}
|
|
|
|
func TestHostIPCDisallowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostIPCSources: []string{},
|
|
},
|
|
})
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
HostIPC: true,
|
|
})
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.Error(t, err, "expected pod infra creation to fail")
|
|
}
|
|
|
|
func TestPrivilegeContainerAllowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
AllowPrivileged: true,
|
|
})
|
|
privileged := true
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo", SecurityContext: &v1.SecurityContext{Privileged: &privileged}},
|
|
},
|
|
})
|
|
|
|
kubelet.podManager.SetPods([]*v1.Pod{pod})
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.NoError(t, err, "expected pod infra creation to succeed")
|
|
}
|
|
|
|
func TestPrivilegedContainerDisallowed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kubelet := testKubelet.kubelet
|
|
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
AllowPrivileged: false,
|
|
})
|
|
privileged := true
|
|
pod := podWithUIDNameNsSpec("12345678", "foo", "new", v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo", SecurityContext: &v1.SecurityContext{Privileged: &privileged}},
|
|
},
|
|
})
|
|
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.Error(t, err, "expected pod infra creation to fail")
|
|
}
|
|
|
|
func TestNetworkErrorsWithoutHostNetwork(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kubelet := testKubelet.kubelet
|
|
|
|
kubelet.runtimeState.setNetworkState(fmt.Errorf("simulated network error"))
|
|
capabilities.SetForTests(capabilities.Capabilities{
|
|
PrivilegedSources: capabilities.PrivilegedSources{
|
|
HostNetworkSources: []string{kubetypes.ApiserverSource, kubetypes.FileSource},
|
|
},
|
|
})
|
|
|
|
pod := podWithUIDNameNsSpec("12345678", "hostnetwork", "new", v1.PodSpec{
|
|
HostNetwork: false,
|
|
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
})
|
|
|
|
kubelet.podManager.SetPods([]*v1.Pod{pod})
|
|
err := kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.Error(t, err, "expected pod with hostNetwork=false to fail when network in error")
|
|
|
|
pod.Annotations[kubetypes.ConfigSourceAnnotationKey] = kubetypes.FileSource
|
|
pod.Spec.HostNetwork = true
|
|
err = kubelet.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodUpdate,
|
|
})
|
|
assert.NoError(t, err, "expected pod with hostNetwork=true to succeed when network in error")
|
|
}
|
|
|
|
func TestFilterOutTerminatedPods(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
pods := newTestPods(5)
|
|
now := metav1.NewTime(time.Now())
|
|
pods[0].Status.Phase = v1.PodFailed
|
|
pods[1].Status.Phase = v1.PodSucceeded
|
|
// The pod is terminating, should not filter out.
|
|
pods[2].Status.Phase = v1.PodRunning
|
|
pods[2].DeletionTimestamp = &now
|
|
pods[2].Status.ContainerStatuses = []v1.ContainerStatus{
|
|
{State: v1.ContainerState{
|
|
Running: &v1.ContainerStateRunning{
|
|
StartedAt: now,
|
|
},
|
|
}},
|
|
}
|
|
pods[3].Status.Phase = v1.PodPending
|
|
pods[4].Status.Phase = v1.PodRunning
|
|
|
|
expected := []*v1.Pod{pods[2], pods[3], pods[4]}
|
|
kubelet.podManager.SetPods(pods)
|
|
actual := kubelet.filterOutTerminatedPods(pods)
|
|
assert.Equal(t, expected, actual)
|
|
}
|
|
|
|
func TestSyncPodsSetStatusToFailedForPodsThatRunTooLong(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
fakeRuntime := testKubelet.fakeRuntime
|
|
testKubelet.fakeCadvisor.On("MachineInfo").Return(&cadvisorapi.MachineInfo{}, nil)
|
|
kubelet := testKubelet.kubelet
|
|
|
|
now := metav1.Now()
|
|
startTime := metav1.NewTime(now.Time.Add(-1 * time.Minute))
|
|
exceededActiveDeadlineSeconds := int64(30)
|
|
|
|
pods := []*v1.Pod{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "12345678",
|
|
Name: "bar",
|
|
Namespace: "new",
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
ActiveDeadlineSeconds: &exceededActiveDeadlineSeconds,
|
|
},
|
|
Status: v1.PodStatus{
|
|
StartTime: &startTime,
|
|
},
|
|
},
|
|
}
|
|
|
|
fakeRuntime.PodList = []*containertest.FakePod{
|
|
{Pod: &kubecontainer.Pod{
|
|
ID: "12345678",
|
|
Name: "bar",
|
|
Namespace: "new",
|
|
Containers: []*kubecontainer.Container{
|
|
{Name: "foo"},
|
|
},
|
|
}},
|
|
}
|
|
|
|
// Let the pod worker sets the status to fail after this sync.
|
|
kubelet.HandlePodUpdates(pods)
|
|
status, found := kubelet.statusManager.GetPodStatus(pods[0].UID)
|
|
assert.True(t, found, "expected to found status for pod %q", pods[0].UID)
|
|
assert.Equal(t, v1.PodFailed, status.Phase)
|
|
}
|
|
|
|
func TestSyncPodsDoesNotSetPodsThatDidNotRunTooLongToFailed(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
fakeRuntime := testKubelet.fakeRuntime
|
|
testKubelet.chainMock()
|
|
|
|
kubelet := testKubelet.kubelet
|
|
|
|
now := metav1.Now()
|
|
startTime := metav1.NewTime(now.Time.Add(-1 * time.Minute))
|
|
exceededActiveDeadlineSeconds := int64(300)
|
|
|
|
pods := []*v1.Pod{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "12345678",
|
|
Name: "bar",
|
|
Namespace: "new",
|
|
},
|
|
Spec: v1.PodSpec{
|
|
Containers: []v1.Container{
|
|
{Name: "foo"},
|
|
},
|
|
ActiveDeadlineSeconds: &exceededActiveDeadlineSeconds,
|
|
},
|
|
Status: v1.PodStatus{
|
|
StartTime: &startTime,
|
|
},
|
|
},
|
|
}
|
|
|
|
fakeRuntime.PodList = []*containertest.FakePod{
|
|
{Pod: &kubecontainer.Pod{
|
|
ID: "12345678",
|
|
Name: "bar",
|
|
Namespace: "new",
|
|
Containers: []*kubecontainer.Container{
|
|
{Name: "foo"},
|
|
},
|
|
}},
|
|
}
|
|
|
|
kubelet.podManager.SetPods(pods)
|
|
kubelet.HandlePodUpdates(pods)
|
|
status, found := kubelet.statusManager.GetPodStatus(pods[0].UID)
|
|
assert.True(t, found, "expected to found status for pod %q", pods[0].UID)
|
|
assert.NotEqual(t, v1.PodFailed, status.Phase)
|
|
}
|
|
|
|
func podWithUIDNameNs(uid types.UID, name, namespace string) *v1.Pod {
|
|
return &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: uid,
|
|
Name: name,
|
|
Namespace: namespace,
|
|
Annotations: map[string]string{},
|
|
},
|
|
}
|
|
}
|
|
|
|
func podWithUIDNameNsSpec(uid types.UID, name, namespace string, spec v1.PodSpec) *v1.Pod {
|
|
pod := podWithUIDNameNs(uid, name, namespace)
|
|
pod.Spec = spec
|
|
return pod
|
|
}
|
|
|
|
func TestDeletePodDirsForDeletedPods(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNs("12345678", "pod1", "ns"),
|
|
podWithUIDNameNs("12345679", "pod2", "ns"),
|
|
}
|
|
|
|
kl.podManager.SetPods(pods)
|
|
// Sync to create pod directories.
|
|
kl.HandlePodSyncs(kl.podManager.GetPods())
|
|
for i := range pods {
|
|
assert.True(t, dirExists(kl.getPodDir(pods[i].UID)), "Expected directory to exist for pod %d", i)
|
|
}
|
|
|
|
// Pod 1 has been deleted and no longer exists.
|
|
kl.podManager.SetPods([]*v1.Pod{pods[0]})
|
|
kl.HandlePodCleanups()
|
|
assert.True(t, dirExists(kl.getPodDir(pods[0].UID)), "Expected directory to exist for pod 0")
|
|
assert.False(t, dirExists(kl.getPodDir(pods[1].UID)), "Expected directory to be deleted for pod 1")
|
|
}
|
|
|
|
func syncAndVerifyPodDir(t *testing.T, testKubelet *TestKubelet, pods []*v1.Pod, podsToCheck []*v1.Pod, shouldExist bool) {
|
|
kl := testKubelet.kubelet
|
|
|
|
kl.podManager.SetPods(pods)
|
|
kl.HandlePodSyncs(pods)
|
|
kl.HandlePodCleanups()
|
|
for i, pod := range podsToCheck {
|
|
exist := dirExists(kl.getPodDir(pod.UID))
|
|
assert.Equal(t, shouldExist, exist, "directory of pod %d", i)
|
|
}
|
|
}
|
|
|
|
func TestDoesNotDeletePodDirsForTerminatedPods(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
pods := []*v1.Pod{
|
|
podWithUIDNameNs("12345678", "pod1", "ns"),
|
|
podWithUIDNameNs("12345679", "pod2", "ns"),
|
|
podWithUIDNameNs("12345680", "pod3", "ns"),
|
|
}
|
|
|
|
syncAndVerifyPodDir(t, testKubelet, pods, pods, true)
|
|
// Pod 1 failed, and pod 2 succeeded. None of the pod directories should be
|
|
// deleted.
|
|
kl.statusManager.SetPodStatus(pods[1], v1.PodStatus{Phase: v1.PodFailed})
|
|
kl.statusManager.SetPodStatus(pods[2], v1.PodStatus{Phase: v1.PodSucceeded})
|
|
syncAndVerifyPodDir(t, testKubelet, pods, pods, true)
|
|
}
|
|
|
|
func TestDoesNotDeletePodDirsIfContainerIsRunning(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
runningPod := &kubecontainer.Pod{
|
|
ID: "12345678",
|
|
Name: "pod1",
|
|
Namespace: "ns",
|
|
}
|
|
apiPod := podWithUIDNameNs(runningPod.ID, runningPod.Name, runningPod.Namespace)
|
|
|
|
// Sync once to create pod directory; confirm that the pod directory has
|
|
// already been created.
|
|
pods := []*v1.Pod{apiPod}
|
|
syncAndVerifyPodDir(t, testKubelet, pods, []*v1.Pod{apiPod}, true)
|
|
|
|
// Pretend the pod is deleted from apiserver, but is still active on the node.
|
|
// The pod directory should not be removed.
|
|
pods = []*v1.Pod{}
|
|
testKubelet.fakeRuntime.PodList = []*containertest.FakePod{{runningPod, ""}}
|
|
syncAndVerifyPodDir(t, testKubelet, pods, []*v1.Pod{apiPod}, true)
|
|
|
|
// The pod is deleted and also not active on the node. The pod directory
|
|
// should be removed.
|
|
pods = []*v1.Pod{}
|
|
testKubelet.fakeRuntime.PodList = []*containertest.FakePod{}
|
|
syncAndVerifyPodDir(t, testKubelet, pods, []*v1.Pod{apiPod}, false)
|
|
}
|
|
|
|
func TestGetPodsToSync(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
clock := testKubelet.fakeClock
|
|
pods := newTestPods(5)
|
|
|
|
exceededActiveDeadlineSeconds := int64(30)
|
|
notYetActiveDeadlineSeconds := int64(120)
|
|
startTime := metav1.NewTime(clock.Now())
|
|
pods[0].Status.StartTime = &startTime
|
|
pods[0].Spec.ActiveDeadlineSeconds = &exceededActiveDeadlineSeconds
|
|
pods[1].Status.StartTime = &startTime
|
|
pods[1].Spec.ActiveDeadlineSeconds = ¬YetActiveDeadlineSeconds
|
|
pods[2].Status.StartTime = &startTime
|
|
pods[2].Spec.ActiveDeadlineSeconds = &exceededActiveDeadlineSeconds
|
|
|
|
kubelet.podManager.SetPods(pods)
|
|
kubelet.workQueue.Enqueue(pods[2].UID, 0)
|
|
kubelet.workQueue.Enqueue(pods[3].UID, 30*time.Second)
|
|
kubelet.workQueue.Enqueue(pods[4].UID, 2*time.Minute)
|
|
|
|
clock.Step(1 * time.Minute)
|
|
|
|
expected := []*v1.Pod{pods[2], pods[3], pods[0]}
|
|
podsToSync := kubelet.getPodsToSync()
|
|
sort.Sort(podsByUID(expected))
|
|
sort.Sort(podsByUID(podsToSync))
|
|
assert.Equal(t, expected, podsToSync)
|
|
}
|
|
|
|
func TestGenerateAPIPodStatusWithSortedContainers(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kubelet := testKubelet.kubelet
|
|
numContainers := 10
|
|
expectedOrder := []string{}
|
|
cStatuses := []*kubecontainer.ContainerStatus{}
|
|
specContainerList := []v1.Container{}
|
|
for i := 0; i < numContainers; i++ {
|
|
id := fmt.Sprintf("%v", i)
|
|
containerName := fmt.Sprintf("%vcontainer", id)
|
|
expectedOrder = append(expectedOrder, containerName)
|
|
cStatus := &kubecontainer.ContainerStatus{
|
|
ID: kubecontainer.BuildContainerID("test", id),
|
|
Name: containerName,
|
|
}
|
|
// Rearrange container statuses
|
|
if i%2 == 0 {
|
|
cStatuses = append(cStatuses, cStatus)
|
|
} else {
|
|
cStatuses = append([]*kubecontainer.ContainerStatus{cStatus}, cStatuses...)
|
|
}
|
|
specContainerList = append(specContainerList, v1.Container{Name: containerName})
|
|
}
|
|
pod := podWithUIDNameNs("uid1", "foo", "test")
|
|
pod.Spec = v1.PodSpec{
|
|
Containers: specContainerList,
|
|
}
|
|
|
|
status := &kubecontainer.PodStatus{
|
|
ID: pod.UID,
|
|
Name: pod.Name,
|
|
Namespace: pod.Namespace,
|
|
ContainerStatuses: cStatuses,
|
|
}
|
|
for i := 0; i < 5; i++ {
|
|
apiStatus := kubelet.generateAPIPodStatus(pod, status)
|
|
for i, c := range apiStatus.ContainerStatuses {
|
|
if expectedOrder[i] != c.Name {
|
|
t.Fatalf("Container status not sorted, expected %v at index %d, but found %v", expectedOrder[i], i, c.Name)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func verifyContainerStatuses(t *testing.T, statuses []v1.ContainerStatus, state, lastTerminationState map[string]v1.ContainerState, message string) {
|
|
for _, s := range statuses {
|
|
assert.Equal(t, s.State, state[s.Name], "%s: state", message)
|
|
assert.Equal(t, s.LastTerminationState, lastTerminationState[s.Name], "%s: last terminated state", message)
|
|
}
|
|
}
|
|
|
|
// Test generateAPIPodStatus with different reason cache and old api pod status.
|
|
func TestGenerateAPIPodStatusWithReasonCache(t *testing.T) {
|
|
// The following waiting reason and message are generated in convertStatusToAPIStatus()
|
|
startWaitingReason := "ContainerCreating"
|
|
initWaitingReason := "PodInitializing"
|
|
testTimestamp := time.Unix(123456789, 987654321)
|
|
testErrorReason := fmt.Errorf("test-error")
|
|
emptyContainerID := (&kubecontainer.ContainerID{}).String()
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kubelet := testKubelet.kubelet
|
|
pod := podWithUIDNameNs("12345678", "foo", "new")
|
|
pod.Spec = v1.PodSpec{RestartPolicy: v1.RestartPolicyOnFailure}
|
|
|
|
podStatus := &kubecontainer.PodStatus{
|
|
ID: pod.UID,
|
|
Name: pod.Name,
|
|
Namespace: pod.Namespace,
|
|
}
|
|
tests := []struct {
|
|
containers []v1.Container
|
|
statuses []*kubecontainer.ContainerStatus
|
|
reasons map[string]error
|
|
oldStatuses []v1.ContainerStatus
|
|
expectedState map[string]v1.ContainerState
|
|
// Only set expectedInitState when it is different from expectedState
|
|
expectedInitState map[string]v1.ContainerState
|
|
expectedLastTerminationState map[string]v1.ContainerState
|
|
}{
|
|
// For container with no historical record, State should be Waiting, LastTerminationState should be retrieved from
|
|
// old status from apiserver.
|
|
{
|
|
containers: []v1.Container{{Name: "without-old-record"}, {Name: "with-old-record"}},
|
|
statuses: []*kubecontainer.ContainerStatus{},
|
|
reasons: map[string]error{},
|
|
oldStatuses: []v1.ContainerStatus{{
|
|
Name: "with-old-record",
|
|
LastTerminationState: v1.ContainerState{Terminated: &v1.ContainerStateTerminated{}},
|
|
}},
|
|
expectedState: map[string]v1.ContainerState{
|
|
"without-old-record": {Waiting: &v1.ContainerStateWaiting{
|
|
Reason: startWaitingReason,
|
|
}},
|
|
"with-old-record": {Waiting: &v1.ContainerStateWaiting{
|
|
Reason: startWaitingReason,
|
|
}},
|
|
},
|
|
expectedInitState: map[string]v1.ContainerState{
|
|
"without-old-record": {Waiting: &v1.ContainerStateWaiting{
|
|
Reason: initWaitingReason,
|
|
}},
|
|
"with-old-record": {Waiting: &v1.ContainerStateWaiting{
|
|
Reason: initWaitingReason,
|
|
}},
|
|
},
|
|
expectedLastTerminationState: map[string]v1.ContainerState{
|
|
"with-old-record": {Terminated: &v1.ContainerStateTerminated{}},
|
|
},
|
|
},
|
|
// For running container, State should be Running, LastTerminationState should be retrieved from latest terminated status.
|
|
{
|
|
containers: []v1.Container{{Name: "running"}},
|
|
statuses: []*kubecontainer.ContainerStatus{
|
|
{
|
|
Name: "running",
|
|
State: kubecontainer.ContainerStateRunning,
|
|
StartedAt: testTimestamp,
|
|
},
|
|
{
|
|
Name: "running",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 1,
|
|
},
|
|
},
|
|
reasons: map[string]error{},
|
|
oldStatuses: []v1.ContainerStatus{},
|
|
expectedState: map[string]v1.ContainerState{
|
|
"running": {Running: &v1.ContainerStateRunning{
|
|
StartedAt: metav1.NewTime(testTimestamp),
|
|
}},
|
|
},
|
|
expectedLastTerminationState: map[string]v1.ContainerState{
|
|
"running": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 1,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
},
|
|
// For terminated container:
|
|
// * If there is no recent start error record, State should be Terminated, LastTerminationState should be retrieved from
|
|
// second latest terminated status;
|
|
// * If there is recent start error record, State should be Waiting, LastTerminationState should be retrieved from latest
|
|
// terminated status;
|
|
// * If ExitCode = 0, restart policy is RestartPolicyOnFailure, the container shouldn't be restarted. No matter there is
|
|
// recent start error or not, State should be Terminated, LastTerminationState should be retrieved from second latest
|
|
// terminated status.
|
|
{
|
|
containers: []v1.Container{{Name: "without-reason"}, {Name: "with-reason"}},
|
|
statuses: []*kubecontainer.ContainerStatus{
|
|
{
|
|
Name: "without-reason",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 1,
|
|
},
|
|
{
|
|
Name: "with-reason",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 2,
|
|
},
|
|
{
|
|
Name: "without-reason",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 3,
|
|
},
|
|
{
|
|
Name: "with-reason",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 4,
|
|
},
|
|
{
|
|
Name: "succeed",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 0,
|
|
},
|
|
{
|
|
Name: "succeed",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 5,
|
|
},
|
|
},
|
|
reasons: map[string]error{"with-reason": testErrorReason, "succeed": testErrorReason},
|
|
oldStatuses: []v1.ContainerStatus{},
|
|
expectedState: map[string]v1.ContainerState{
|
|
"without-reason": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 1,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"with-reason": {Waiting: &v1.ContainerStateWaiting{Reason: testErrorReason.Error()}},
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 0,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
expectedLastTerminationState: map[string]v1.ContainerState{
|
|
"without-reason": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 3,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"with-reason": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 2,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 5,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
},
|
|
}
|
|
|
|
for i, test := range tests {
|
|
kubelet.reasonCache = NewReasonCache()
|
|
for n, e := range test.reasons {
|
|
kubelet.reasonCache.add(pod.UID, n, e, "")
|
|
}
|
|
pod.Spec.Containers = test.containers
|
|
pod.Status.ContainerStatuses = test.oldStatuses
|
|
podStatus.ContainerStatuses = test.statuses
|
|
apiStatus := kubelet.generateAPIPodStatus(pod, podStatus)
|
|
verifyContainerStatuses(t, apiStatus.ContainerStatuses, test.expectedState, test.expectedLastTerminationState, fmt.Sprintf("case %d", i))
|
|
}
|
|
|
|
// Everything should be the same for init containers
|
|
for i, test := range tests {
|
|
kubelet.reasonCache = NewReasonCache()
|
|
for n, e := range test.reasons {
|
|
kubelet.reasonCache.add(pod.UID, n, e, "")
|
|
}
|
|
pod.Spec.InitContainers = test.containers
|
|
pod.Status.InitContainerStatuses = test.oldStatuses
|
|
podStatus.ContainerStatuses = test.statuses
|
|
apiStatus := kubelet.generateAPIPodStatus(pod, podStatus)
|
|
expectedState := test.expectedState
|
|
if test.expectedInitState != nil {
|
|
expectedState = test.expectedInitState
|
|
}
|
|
verifyContainerStatuses(t, apiStatus.InitContainerStatuses, expectedState, test.expectedLastTerminationState, fmt.Sprintf("case %d", i))
|
|
}
|
|
}
|
|
|
|
// Test generateAPIPodStatus with different restart policies.
|
|
func TestGenerateAPIPodStatusWithDifferentRestartPolicies(t *testing.T) {
|
|
testErrorReason := fmt.Errorf("test-error")
|
|
emptyContainerID := (&kubecontainer.ContainerID{}).String()
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kubelet := testKubelet.kubelet
|
|
pod := podWithUIDNameNs("12345678", "foo", "new")
|
|
containers := []v1.Container{{Name: "succeed"}, {Name: "failed"}}
|
|
podStatus := &kubecontainer.PodStatus{
|
|
ID: pod.UID,
|
|
Name: pod.Name,
|
|
Namespace: pod.Namespace,
|
|
ContainerStatuses: []*kubecontainer.ContainerStatus{
|
|
{
|
|
Name: "succeed",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 0,
|
|
},
|
|
{
|
|
Name: "failed",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 1,
|
|
},
|
|
{
|
|
Name: "succeed",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 2,
|
|
},
|
|
{
|
|
Name: "failed",
|
|
State: kubecontainer.ContainerStateExited,
|
|
ExitCode: 3,
|
|
},
|
|
},
|
|
}
|
|
kubelet.reasonCache.add(pod.UID, "succeed", testErrorReason, "")
|
|
kubelet.reasonCache.add(pod.UID, "failed", testErrorReason, "")
|
|
for c, test := range []struct {
|
|
restartPolicy v1.RestartPolicy
|
|
expectedState map[string]v1.ContainerState
|
|
expectedLastTerminationState map[string]v1.ContainerState
|
|
// Only set expectedInitState when it is different from expectedState
|
|
expectedInitState map[string]v1.ContainerState
|
|
// Only set expectedInitLastTerminationState when it is different from expectedLastTerminationState
|
|
expectedInitLastTerminationState map[string]v1.ContainerState
|
|
}{
|
|
{
|
|
restartPolicy: v1.RestartPolicyNever,
|
|
expectedState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 0,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 1,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
expectedLastTerminationState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 2,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 3,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
},
|
|
{
|
|
restartPolicy: v1.RestartPolicyOnFailure,
|
|
expectedState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 0,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Waiting: &v1.ContainerStateWaiting{Reason: testErrorReason.Error()}},
|
|
},
|
|
expectedLastTerminationState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 2,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 1,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
},
|
|
{
|
|
restartPolicy: v1.RestartPolicyAlways,
|
|
expectedState: map[string]v1.ContainerState{
|
|
"succeed": {Waiting: &v1.ContainerStateWaiting{Reason: testErrorReason.Error()}},
|
|
"failed": {Waiting: &v1.ContainerStateWaiting{Reason: testErrorReason.Error()}},
|
|
},
|
|
expectedLastTerminationState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 0,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 1,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
// If the init container is terminated with exit code 0, it won't be restarted even when the
|
|
// restart policy is RestartAlways.
|
|
expectedInitState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 0,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Waiting: &v1.ContainerStateWaiting{Reason: testErrorReason.Error()}},
|
|
},
|
|
expectedInitLastTerminationState: map[string]v1.ContainerState{
|
|
"succeed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 2,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
"failed": {Terminated: &v1.ContainerStateTerminated{
|
|
ExitCode: 1,
|
|
ContainerID: emptyContainerID,
|
|
}},
|
|
},
|
|
},
|
|
} {
|
|
pod.Spec.RestartPolicy = test.restartPolicy
|
|
// Test normal containers
|
|
pod.Spec.Containers = containers
|
|
apiStatus := kubelet.generateAPIPodStatus(pod, podStatus)
|
|
expectedState, expectedLastTerminationState := test.expectedState, test.expectedLastTerminationState
|
|
verifyContainerStatuses(t, apiStatus.ContainerStatuses, expectedState, expectedLastTerminationState, fmt.Sprintf("case %d", c))
|
|
pod.Spec.Containers = nil
|
|
|
|
// Test init containers
|
|
pod.Spec.InitContainers = containers
|
|
apiStatus = kubelet.generateAPIPodStatus(pod, podStatus)
|
|
if test.expectedInitState != nil {
|
|
expectedState = test.expectedInitState
|
|
}
|
|
if test.expectedInitLastTerminationState != nil {
|
|
expectedLastTerminationState = test.expectedInitLastTerminationState
|
|
}
|
|
verifyContainerStatuses(t, apiStatus.InitContainerStatuses, expectedState, expectedLastTerminationState, fmt.Sprintf("case %d", c))
|
|
pod.Spec.InitContainers = nil
|
|
}
|
|
}
|
|
|
|
// testPodAdmitHandler is a lifecycle.PodAdmitHandler for testing.
|
|
type testPodAdmitHandler struct {
|
|
// list of pods to reject.
|
|
podsToReject []*v1.Pod
|
|
}
|
|
|
|
// Admit rejects all pods in the podsToReject list with a matching UID.
|
|
func (a *testPodAdmitHandler) Admit(attrs *lifecycle.PodAdmitAttributes) lifecycle.PodAdmitResult {
|
|
for _, podToReject := range a.podsToReject {
|
|
if podToReject.UID == attrs.Pod.UID {
|
|
return lifecycle.PodAdmitResult{Admit: false, Reason: "Rejected", Message: "Pod is rejected"}
|
|
}
|
|
}
|
|
return lifecycle.PodAdmitResult{Admit: true}
|
|
}
|
|
|
|
// Test verifies that the kubelet invokes an admission handler during HandlePodAdditions.
|
|
func TestHandlePodAdditionsInvokesPodAdmitHandlers(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
testKubelet.chainMock()
|
|
kl := testKubelet.kubelet
|
|
kl.nodeInfo = testNodeInfo{nodes: []*v1.Node{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{Name: string(kl.nodeName)},
|
|
Status: v1.NodeStatus{
|
|
Allocatable: v1.ResourceList{
|
|
v1.ResourcePods: *resource.NewQuantity(110, resource.DecimalSI),
|
|
},
|
|
},
|
|
},
|
|
}}
|
|
|
|
pods := []*v1.Pod{
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "123456789",
|
|
Name: "podA",
|
|
Namespace: "foo",
|
|
},
|
|
},
|
|
{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "987654321",
|
|
Name: "podB",
|
|
Namespace: "foo",
|
|
},
|
|
},
|
|
}
|
|
podToReject := pods[0]
|
|
podToAdmit := pods[1]
|
|
podsToReject := []*v1.Pod{podToReject}
|
|
|
|
kl.admitHandlers.AddPodAdmitHandler(&testPodAdmitHandler{podsToReject: podsToReject})
|
|
|
|
kl.HandlePodAdditions(pods)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, podToReject, v1.PodFailed)
|
|
checkPodStatus(t, kl, podToAdmit, v1.PodPending)
|
|
}
|
|
|
|
// testPodSyncLoopHandler is a lifecycle.PodSyncLoopHandler that is used for testing.
|
|
type testPodSyncLoopHandler struct {
|
|
// list of pods to sync
|
|
podsToSync []*v1.Pod
|
|
}
|
|
|
|
// ShouldSync evaluates if the pod should be synced from the kubelet.
|
|
func (a *testPodSyncLoopHandler) ShouldSync(pod *v1.Pod) bool {
|
|
for _, podToSync := range a.podsToSync {
|
|
if podToSync.UID == pod.UID {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// TestGetPodsToSyncInvokesPodSyncLoopHandlers ensures that the get pods to sync routine invokes the handler.
|
|
func TestGetPodsToSyncInvokesPodSyncLoopHandlers(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
pods := newTestPods(5)
|
|
expected := []*v1.Pod{pods[0]}
|
|
kubelet.AddPodSyncLoopHandler(&testPodSyncLoopHandler{expected})
|
|
kubelet.podManager.SetPods(pods)
|
|
|
|
podsToSync := kubelet.getPodsToSync()
|
|
sort.Sort(podsByUID(expected))
|
|
sort.Sort(podsByUID(podsToSync))
|
|
assert.Equal(t, expected, podsToSync)
|
|
}
|
|
|
|
// testPodSyncHandler is a lifecycle.PodSyncHandler that is used for testing.
|
|
type testPodSyncHandler struct {
|
|
// list of pods to evict.
|
|
podsToEvict []*v1.Pod
|
|
// the reason for the eviction
|
|
reason string
|
|
// the message for the eviction
|
|
message string
|
|
}
|
|
|
|
// ShouldEvict evaluates if the pod should be evicted from the kubelet.
|
|
func (a *testPodSyncHandler) ShouldEvict(pod *v1.Pod) lifecycle.ShouldEvictResponse {
|
|
for _, podToEvict := range a.podsToEvict {
|
|
if podToEvict.UID == pod.UID {
|
|
return lifecycle.ShouldEvictResponse{Evict: true, Reason: a.reason, Message: a.message}
|
|
}
|
|
}
|
|
return lifecycle.ShouldEvictResponse{Evict: false}
|
|
}
|
|
|
|
// TestGenerateAPIPodStatusInvokesPodSyncHandlers invokes the handlers and reports the proper status
|
|
func TestGenerateAPIPodStatusInvokesPodSyncHandlers(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kubelet := testKubelet.kubelet
|
|
pod := newTestPods(1)[0]
|
|
podsToEvict := []*v1.Pod{pod}
|
|
kubelet.AddPodSyncHandler(&testPodSyncHandler{podsToEvict, "Evicted", "because"})
|
|
status := &kubecontainer.PodStatus{
|
|
ID: pod.UID,
|
|
Name: pod.Name,
|
|
Namespace: pod.Namespace,
|
|
}
|
|
apiStatus := kubelet.generateAPIPodStatus(pod, status)
|
|
require.Equal(t, v1.PodFailed, apiStatus.Phase)
|
|
require.Equal(t, "Evicted", apiStatus.Reason)
|
|
require.Equal(t, "because", apiStatus.Message)
|
|
}
|
|
|
|
func TestSyncPodKillPod(t *testing.T) {
|
|
testKubelet := newTestKubelet(t, false /* controllerAttachDetachEnabled */)
|
|
defer testKubelet.Cleanup()
|
|
kl := testKubelet.kubelet
|
|
pod := &v1.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
UID: "12345678",
|
|
Name: "bar",
|
|
Namespace: "foo",
|
|
},
|
|
}
|
|
pods := []*v1.Pod{pod}
|
|
kl.podManager.SetPods(pods)
|
|
gracePeriodOverride := int64(0)
|
|
err := kl.syncPod(syncPodOptions{
|
|
pod: pod,
|
|
podStatus: &kubecontainer.PodStatus{},
|
|
updateType: kubetypes.SyncPodKill,
|
|
killPodOptions: &KillPodOptions{
|
|
PodStatusFunc: func(p *v1.Pod, podStatus *kubecontainer.PodStatus) v1.PodStatus {
|
|
return v1.PodStatus{
|
|
Phase: v1.PodFailed,
|
|
Reason: "reason",
|
|
Message: "message",
|
|
}
|
|
},
|
|
PodTerminationGracePeriodSecondsOverride: &gracePeriodOverride,
|
|
},
|
|
})
|
|
require.NoError(t, err)
|
|
|
|
// Check pod status stored in the status map.
|
|
checkPodStatus(t, kl, pod, v1.PodFailed)
|
|
}
|
|
|
|
func waitForVolumeUnmount(
|
|
volumeManager kubeletvolume.VolumeManager,
|
|
pod *v1.Pod) error {
|
|
var podVolumes kubecontainer.VolumeMap
|
|
err := retryWithExponentialBackOff(
|
|
time.Duration(50*time.Millisecond),
|
|
func() (bool, error) {
|
|
// Verify volumes detached
|
|
podVolumes = volumeManager.GetMountedVolumesForPod(
|
|
volumehelper.GetUniquePodName(pod))
|
|
|
|
if len(podVolumes) != 0 {
|
|
return false, nil
|
|
}
|
|
|
|
return true, nil
|
|
},
|
|
)
|
|
|
|
if err != nil {
|
|
return fmt.Errorf(
|
|
"Expected volumes to be unmounted. But some volumes are still mounted: %#v", podVolumes)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func waitForVolumeDetach(
|
|
volumeName v1.UniqueVolumeName,
|
|
volumeManager kubeletvolume.VolumeManager) error {
|
|
attachedVolumes := []v1.UniqueVolumeName{}
|
|
err := retryWithExponentialBackOff(
|
|
time.Duration(50*time.Millisecond),
|
|
func() (bool, error) {
|
|
// Verify volumes detached
|
|
volumeAttached := volumeManager.VolumeIsAttached(volumeName)
|
|
return !volumeAttached, nil
|
|
},
|
|
)
|
|
|
|
if err != nil {
|
|
return fmt.Errorf(
|
|
"Expected volumes to be detached. But some volumes are still attached: %#v", attachedVolumes)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func retryWithExponentialBackOff(initialDuration time.Duration, fn wait.ConditionFunc) error {
|
|
backoff := wait.Backoff{
|
|
Duration: initialDuration,
|
|
Factor: 3,
|
|
Jitter: 0,
|
|
Steps: 6,
|
|
}
|
|
return wait.ExponentialBackoff(backoff, fn)
|
|
}
|
|
|
|
func simulateVolumeInUseUpdate(
|
|
volumeName v1.UniqueVolumeName,
|
|
stopCh <-chan struct{},
|
|
volumeManager kubeletvolume.VolumeManager) {
|
|
ticker := time.NewTicker(100 * time.Millisecond)
|
|
defer ticker.Stop()
|
|
for {
|
|
select {
|
|
case <-ticker.C:
|
|
volumeManager.MarkVolumesAsReportedInUse(
|
|
[]v1.UniqueVolumeName{volumeName})
|
|
case <-stopCh:
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func runVolumeManager(kubelet *Kubelet) chan struct{} {
|
|
stopCh := make(chan struct{})
|
|
go kubelet.volumeManager.Run(kubelet.sourcesReady, stopCh)
|
|
return stopCh
|
|
}
|
|
|
|
// Sort pods by UID.
|
|
type podsByUID []*v1.Pod
|
|
|
|
func (p podsByUID) Len() int { return len(p) }
|
|
func (p podsByUID) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
|
|
func (p podsByUID) Less(i, j int) bool { return p[i].UID < p[j].UID }
|