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Merge pull request #5265 from ddysher/kubelet-post-status

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kubelet post node status to master
This commit is contained in:
Dawn Chen 2015-03-13 15:29:22 -07:00
commit 0cc2b62b4a
6 changed files with 414 additions and 66 deletions
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2
cmd/integration/integration.go
View File

@ -210,7 +210,7 @@ func startComponents(manifestURL string) (apiServerURL string) {
nodeResources := &api.NodeResources{}
nodeController := nodeControllerPkg.NewNodeController(nil, "", machineList, nodeResources, cl, fakeKubeletClient{}, 10, 5*time.Minute)
nodeController.Run(5*time.Second, true, true)
nodeController.Run(5*time.Second, true, false)
// Kubelet (localhost)
testRootDir := makeTempDirOrDie("kubelet_integ_1.")

2
cmd/kube-controller-manager/app/controllermanager.go
View File

@ -78,7 +78,7 @@ func NewCMServer() *CMServer {
NodeMilliCPU: 1000,
NodeMemory: resource.MustParse("3Gi"),
SyncNodeList: true,
SyncNodeStatus: true,
SyncNodeStatus: false,
KubeletConfig: client.KubeletConfig{
Port: ports.KubeletPort,
EnableHttps: false,

21
cmd/kubelet/app/server.go
View File

@ -52,6 +52,7 @@ type KubeletServer struct {
SyncFrequency time.Duration
FileCheckFrequency time.Duration
HTTPCheckFrequency time.Duration
StatusUpdateFrequency time.Duration
ManifestURL string
EnableServer bool
Address util.IP
@ -81,12 +82,13 @@ type KubeletServer struct {
// NewKubeletServer will create a new KubeletServer with default values.
func NewKubeletServer() *KubeletServer {
return &KubeletServer{
SyncFrequency: 10 * time.Second,
FileCheckFrequency: 20 * time.Second,
HTTPCheckFrequency: 20 * time.Second,
EnableServer: true,
Address: util.IP(net.ParseIP("127.0.0.1")),
Port: ports.KubeletPort,
SyncFrequency: 10 * time.Second,
FileCheckFrequency: 20 * time.Second,
HTTPCheckFrequency: 20 * time.Second,
StatusUpdateFrequency: 20 * time.Second,
EnableServer: true,
Address: util.IP(net.ParseIP("127.0.0.1")),
Port: ports.KubeletPort,
PodInfraContainerImage: kubelet.PodInfraContainerImage,
RootDirectory: defaultRootDir,
RegistryBurst: 10,
@ -103,6 +105,7 @@ func NewKubeletServer() *KubeletServer {
func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
fs.StringVar(&s.Config, "config", s.Config, "Path to the config file or directory of files")
fs.DurationVar(&s.SyncFrequency, "sync_frequency", s.SyncFrequency, "Max period between synchronizing running containers and config")
fs.DurationVar(&s.StatusUpdateFrequency, "status_update_frequency", s.StatusUpdateFrequency, "Duration between posting node status to master")
fs.DurationVar(&s.FileCheckFrequency, "file_check_frequency", s.FileCheckFrequency, "Duration between checking config files for new data")
fs.DurationVar(&s.HTTPCheckFrequency, "http_check_frequency", s.HTTPCheckFrequency, "Duration between checking http for new data")
fs.StringVar(&s.ManifestURL, "manifest_url", s.ManifestURL, "URL for accessing the container manifest")
@ -156,6 +159,7 @@ func (s *KubeletServer) Run(_ []string) error {
RootDirectory: s.RootDirectory,
ConfigFile: s.Config,
ManifestURL: s.ManifestURL,
StatusUpdateFrequency: s.StatusUpdateFrequency,
FileCheckFrequency: s.FileCheckFrequency,
HTTPCheckFrequency: s.HTTPCheckFrequency,
PodInfraContainerImage: s.PodInfraContainerImage,
@ -248,6 +252,7 @@ func SimpleRunKubelet(client *client.Client,
Address: util.IP(net.ParseIP(address)),
EnableServer: true,
EnableDebuggingHandlers: true,
StatusUpdateFrequency: 3 * time.Second,
SyncFrequency: 3 * time.Second,
MinimumGCAge: 10 * time.Second,
MaxContainerCount: 5,
@ -338,6 +343,7 @@ type KubeletConfig struct {
RootDirectory string
ConfigFile string
ManifestURL string
StatusUpdateFrequency time.Duration
FileCheckFrequency time.Duration
HTTPCheckFrequency time.Duration
Hostname string
@ -400,7 +406,8 @@ func createAndInitKubelet(kc *KubeletConfig, pc *config.PodConfig) (*kubelet.Kub
kc.VolumePlugins,
kc.StreamingConnectionIdleTimeout,
kc.Recorder,
cadvisorInterface)
cadvisorInterface,
kc.StatusUpdateFrequency)
if err != nil {
return nil, err

2
pkg/api/types.go
View File

@ -930,7 +930,7 @@ type Node struct {
Status NodeStatus `json:"status,omitempty"`
}
// NodeList is a list of minions.
// NodeList is a list of nodes.
type NodeList struct {
TypeMeta `json:",inline"`
ListMeta `json:"metadata,omitempty"`

108
pkg/kubelet/kubelet.go
View File

@ -32,6 +32,7 @@ import (
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/resource"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/validation"
"github.com/GoogleCloudPlatform/kubernetes/pkg/capabilities"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
@ -55,7 +56,7 @@ import (
)
const (
// taken from lmctfy https://github.com/google/lmctfy/blob/master/lmctfy/controllers/cpu_controller.cc
// Taken from lmctfy https://github.com/google/lmctfy/blob/master/lmctfy/controllers/cpu_controller.cc
minShares = 2
sharesPerCPU = 1024
milliCPUToCPU = 1000
@ -66,6 +67,14 @@ const (
// Max amount of time to wait for the Docker daemon to come up.
maxWaitForDocker = 5 * time.Minute
// Initial node status update frequency and incremental frequency, for faster cluster startup.
// The update frequency will be increameted linearly, until it reaches status_update_frequency.
initialNodeStatusUpdateFrequency = 100 * time.Millisecond
nodeStatusUpdateFrequencyInc = 500 * time.Millisecond
// The retry count for updating node status at each sync period.
nodeStatusUpdateRetry = 5
)
var (
@ -107,7 +116,8 @@ func NewMainKubelet(
volumePlugins []volume.Plugin,
streamingConnectionIdleTimeout time.Duration,
recorder record.EventRecorder,
cadvisorInterface cadvisor.Interface) (*Kubelet, error) {
cadvisorInterface cadvisor.Interface,
statusUpdateFrequency time.Duration) (*Kubelet, error) {
if rootDirectory == "" {
return nil, fmt.Errorf("invalid root directory %q", rootDirectory)
}
@ -156,6 +166,7 @@ func NewMainKubelet(
dockerClient: dockerClient,
kubeClient: kubeClient,
rootDirectory: rootDirectory,
statusUpdateFrequency: statusUpdateFrequency,
resyncInterval: resyncInterval,
podInfraContainerImage: podInfraContainerImage,
dockerIDToRef: map[dockertools.DockerID]*api.ObjectReference{},
@ -215,6 +226,7 @@ type Kubelet struct {
rootDirectory string
podInfraContainerImage string
podWorkers *podWorkers
statusUpdateFrequency time.Duration
resyncInterval time.Duration
sourcesReady SourcesReadyFn
@ -552,9 +564,36 @@ func (kl *Kubelet) Run(updates <-chan PodUpdate) {
if kl.dockerPuller == nil {
kl.dockerPuller = dockertools.NewDockerPuller(kl.dockerClient, kl.pullQPS, kl.pullBurst)
}
if kl.kubeClient == nil {
glog.Warning("No api server defined - no node status update will be sent.")
}
go kl.syncNodeStatus()
kl.syncLoop(updates, kl)
}
// syncNodeStatus periodically synchronizes node status to master.
func (kl *Kubelet) syncNodeStatus() {
if kl.kubeClient == nil {
return
}
for feq := initialNodeStatusUpdateFrequency; feq < kl.statusUpdateFrequency; feq += nodeStatusUpdateFrequencyInc {
select {
case <-time.After(feq):
if err := kl.updateNodeStatus(); err != nil {
glog.Errorf("Unable to update node status: %v", err)
}
}
}
for {
select {
case <-time.After(kl.statusUpdateFrequency):
if err := kl.updateNodeStatus(); err != nil {
glog.Errorf("Unable to update node status: %v", err)
}
}
}
}
func makeBinds(pod *api.BoundPod, container *api.Container, podVolumes volumeMap) []string {
binds := []string{}
for _, mount := range container.VolumeMounts {
@ -570,6 +609,7 @@ func makeBinds(pod *api.BoundPod, container *api.Container, podVolumes volumeMap
}
return binds
}
func makePortsAndBindings(container *api.Container) (map[docker.Port]struct{}, map[docker.Port][]docker.PortBinding) {
exposedPorts := map[docker.Port]struct{}{}
portBindings := map[docker.Port][]docker.PortBinding{}
@ -1795,7 +1835,7 @@ func (kl *Kubelet) GetHostname() string {
return kl.hostname
}
// GetBoundPods returns all pods bound to the kubelet and their spec
// GetBoundPods returns all pods bound to the kubelet and their spec.
func (kl *Kubelet) GetBoundPods() ([]api.BoundPod, error) {
kl.podLock.RLock()
defer kl.podLock.RUnlock()
@ -1815,6 +1855,68 @@ func (kl *Kubelet) GetPodByName(namespace, name string) (*api.BoundPod, bool) {
return nil, false
}
// updateNodeStatus updates node status to master with retries.
func (kl *Kubelet) updateNodeStatus() error {
for i := 0; i < nodeStatusUpdateRetry; i++ {
err := kl.tryUpdateNodeStatus()
if err != nil {
glog.Errorf("error updating node status, will retry: %v", err)
} else {
return nil
}
}
return fmt.Errorf("Update node status exceeds retry count")
}
// tryUpdateNodeStatus tries to update node status to master.
func (kl *Kubelet) tryUpdateNodeStatus() error {
node, err := kl.kubeClient.Nodes().Get(kl.hostname)
if err != nil {
return fmt.Errorf("error getting node %s: %v", kl.hostname, err)
}
if node == nil {
return fmt.Errorf("no node instance returned for %v", kl.hostname)
}
// TODO: Post NotReady if we cannot get MachineInfo from cAdvisor. This needs to start
// cAdvisor locally, e.g. for test-cmd.sh, and in integration test.
info, err := kl.GetMachineInfo()
if err != nil {
glog.Error("error getting machine info: %v", err)
} else {
node.Status.NodeInfo.MachineID = info.MachineID
node.Status.NodeInfo.SystemUUID = info.SystemUUID
node.Spec.Capacity = api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(
int64(info.NumCores*1000),
resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(
info.MemoryCapacity,
resource.BinarySI),
}
}
newCondition := api.NodeCondition{
Type: api.NodeReady,
Status: api.ConditionFull,
Reason: fmt.Sprintf("kubelet is posting ready status"),
LastProbeTime: util.Now(),
}
updated := false
for i := range node.Status.Conditions {
if node.Status.Conditions[i].Type == api.NodeReady {
node.Status.Conditions[i] = newCondition
updated = true
}
}
if !updated {
node.Status.Conditions = append(node.Status.Conditions, newCondition)
}
_, err = kl.kubeClient.Nodes().Update(node)
return err
}
// getPhase returns the phase of a pod given its container info.
func getPhase(spec *api.PodSpec, info api.PodInfo) api.PodPhase {
running := 0

345
pkg/kubelet/kubelet_test.go
View File

@ -33,6 +33,8 @@ import (
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/resource"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client/record"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/cadvisor"
"github.com/GoogleCloudPlatform/kubernetes/pkg/kubelet/dockertools"
@ -50,18 +52,26 @@ func init() {
util.ReallyCrash = true
}
// TODO(vmarmol): Consider compacting these return types of handling this better.
func newTestKubelet(t *testing.T) (*Kubelet, *dockertools.FakeDockerClient, *sync.WaitGroup, *cadvisor.Mock) {
fakeDocker := &dockertools.FakeDockerClient{
RemovedImages: util.StringSet{},
}
type TestKubelet struct {
kubelet *Kubelet
fakeDocker *dockertools.FakeDockerClient
fakeCadvisor *cadvisor.Mock
fakeKubeClient *client.Fake
waitGroup *sync.WaitGroup
}
func newTestKubelet(t *testing.T) *TestKubelet {
fakeDocker := &dockertools.FakeDockerClient{RemovedImages: util.StringSet{}}
fakeDockerCache := dockertools.NewFakeDockerCache(fakeDocker)
recorder := &record.FakeRecorder{}
fakeRecorder := &record.FakeRecorder{}
fakeKubeClient := &client.Fake{}
kubelet := &Kubelet{}
kubelet.dockerClient = fakeDocker
kubelet.dockerCache = fakeDockerCache
kubelet.kubeClient = fakeKubeClient
kubelet.dockerPuller = &dockertools.FakeDockerPuller{}
kubelet.hostname = "testnode"
if tempDir, err := ioutil.TempDir("/tmp", "kubelet_test."); err != nil {
t.Fatalf("can't make a temp rootdir: %v", err)
} else {
@ -78,12 +88,12 @@ func newTestKubelet(t *testing.T) (*Kubelet, *dockertools.FakeDockerClient, *syn
waitGroup.Done()
return err
},
recorder)
fakeRecorder)
kubelet.sourcesReady = func() bool { return true }
kubelet.masterServiceNamespace = api.NamespaceDefault
kubelet.serviceLister = testServiceLister{}
kubelet.readiness = newReadinessStates()
kubelet.recorder = recorder
kubelet.recorder = fakeRecorder
kubelet.podStatuses = map[string]api.PodStatus{}
if err := kubelet.setupDataDirs(); err != nil {
t.Fatalf("can't initialize kubelet data dirs: %v", err)
@ -91,7 +101,7 @@ func newTestKubelet(t *testing.T) (*Kubelet, *dockertools.FakeDockerClient, *syn
mockCadvisor := &cadvisor.Mock{}
kubelet.cadvisor = mockCadvisor
return kubelet, fakeDocker, waitGroup, mockCadvisor
return &TestKubelet{kubelet, fakeDocker, mockCadvisor, fakeKubeClient, waitGroup}
}
func verifyCalls(t *testing.T, fakeDocker *dockertools.FakeDockerClient, calls []string) {
@ -143,7 +153,8 @@ func verifyBoolean(t *testing.T, expected, value bool) {
}
func TestKubeletDirs(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
root := kubelet.rootDirectory
var exp, got string
@ -204,7 +215,8 @@ func TestKubeletDirs(t *testing.T) {
}
func TestKubeletDirsCompat(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
root := kubelet.rootDirectory
if err := os.MkdirAll(root, 0750); err != nil {
t.Fatalf("can't mkdir(%q): %s", root, err)
@ -310,7 +322,8 @@ func TestKillContainerWithError(t *testing.T) {
Err: fmt.Errorf("sample error"),
ContainerList: append([]docker.APIContainers{}, containers...),
}
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
for _, c := range fakeDocker.ContainerList {
kubelet.readiness.set(c.ID, true)
}
@ -341,7 +354,9 @@ func TestKillContainer(t *testing.T) {
Names: []string{"/k8s_bar_qux_5678_42"},
},
}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
fakeDocker.ContainerList = append([]docker.APIContainers{}, containers...)
fakeDocker.Container = &docker.Container{
Name: "foobar",
@ -394,7 +409,11 @@ func (cr *channelReader) GetList() [][]api.BoundPod {
var emptyPodUIDs map[types.UID]metrics.SyncPodType
func TestSyncPodsDoesNothing(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
container := api.Container{Name: "bar"}
fakeDocker.ContainerList = []docker.APIContainers{
{
@ -432,7 +451,10 @@ func TestSyncPodsDoesNothing(t *testing.T) {
}
func TestSyncPodsWithTerminationLog(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
container := api.Container{
Name: "bar",
TerminationMessagePath: "/dev/somepath",
@ -481,7 +503,10 @@ func matchString(t *testing.T, pattern, str string) bool {
}
func TestSyncPodsCreatesNetAndContainer(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
kubelet.podInfraContainerImage = "custom_image_name"
fakeDocker.ContainerList = []docker.APIContainers{}
kubelet.pods = []api.BoundPod{
@ -529,7 +554,10 @@ func TestSyncPodsCreatesNetAndContainer(t *testing.T) {
}
func TestSyncPodsCreatesNetAndContainerPullsImage(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
puller := kubelet.dockerPuller.(*dockertools.FakeDockerPuller)
puller.HasImages = []string{}
kubelet.podInfraContainerImage = "custom_image_name"
@ -573,7 +601,10 @@ func TestSyncPodsCreatesNetAndContainerPullsImage(t *testing.T) {
}
func TestSyncPodsWithPodInfraCreatesContainer(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
fakeDocker.ContainerList = []docker.APIContainers{
{
// pod infra container
@ -614,7 +645,10 @@ func TestSyncPodsWithPodInfraCreatesContainer(t *testing.T) {
}
func TestSyncPodsWithPodInfraCreatesContainerCallsHandler(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
fakeHttp := fakeHTTP{}
kubelet.httpClient = &fakeHttp
fakeDocker.ContainerList = []docker.APIContainers{
@ -671,7 +705,10 @@ func TestSyncPodsWithPodInfraCreatesContainerCallsHandler(t *testing.T) {
}
func TestSyncPodsDeletesWithNoPodInfraContainer(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
fakeDocker.ContainerList = []docker.APIContainers{
{
// format is // k8s_<container-id>_<pod-fullname>_<pod-uid>
@ -717,7 +754,9 @@ func TestSyncPodsDeletesWithNoPodInfraContainer(t *testing.T) {
func TestSyncPodsDeletesWhenSourcesAreReady(t *testing.T) {
ready := false
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.sourcesReady = func() bool { return ready }
fakeDocker.ContainerList = []docker.APIContainers{
@ -759,7 +798,9 @@ func TestSyncPodsDeletesWhenSourcesAreReady(t *testing.T) {
}
func TestSyncPodsDeletes(t *testing.T) {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
fakeDocker.ContainerList = []docker.APIContainers{
{
// the k8s prefix is required for the kubelet to manage the container
@ -797,7 +838,9 @@ func TestSyncPodsDeletes(t *testing.T) {
}
func TestSyncPodDeletesDuplicate(t *testing.T) {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
dockerContainers := dockertools.DockerContainers{
"1234": &docker.APIContainers{
// the k8s prefix is required for the kubelet to manage the container
@ -841,7 +884,9 @@ func TestSyncPodDeletesDuplicate(t *testing.T) {
}
func TestSyncPodBadHash(t *testing.T) {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
dockerContainers := dockertools.DockerContainers{
"1234": &docker.APIContainers{
// the k8s prefix is required for the kubelet to manage the container
@ -889,7 +934,9 @@ func TestSyncPodBadHash(t *testing.T) {
}
func TestSyncPodUnhealthy(t *testing.T) {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
dockerContainers := dockertools.DockerContainers{
"1234": &docker.APIContainers{
// the k8s prefix is required for the kubelet to manage the container
@ -938,7 +985,8 @@ func TestSyncPodUnhealthy(t *testing.T) {
}
func TestMountExternalVolumes(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
kubelet.volumePluginMgr.InitPlugins([]volume.Plugin{&volume.FakePlugin{"fake", nil}}, &volumeHost{kubelet})
pod := api.BoundPod{
@ -972,7 +1020,8 @@ func TestMountExternalVolumes(t *testing.T) {
}
func TestGetPodVolumesFromDisk(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
plug := &volume.FakePlugin{"fake", nil}
kubelet.volumePluginMgr.InitPlugins([]volume.Plugin{plug}, &volumeHost{kubelet})
@ -1194,9 +1243,13 @@ func TestGetContainerInfo(t *testing.T) {
},
}
kubelet, fakeDocker, _, mockCadvisor := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
mockCadvisor := testKubelet.fakeCadvisor
cadvisorReq := &cadvisorApi.ContainerInfoRequest{}
mockCadvisor.On("DockerContainer", containerID, cadvisorReq).Return(containerInfo, nil)
fakeDocker.ContainerList = []docker.APIContainers{
{
ID: containerID,
@ -1246,7 +1299,10 @@ func TestGetRootInfo(t *testing.T) {
func TestGetContainerInfoWhenCadvisorFailed(t *testing.T) {
containerID := "ab2cdf"
kubelet, fakeDocker, _, mockCadvisor := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
mockCadvisor := testKubelet.fakeCadvisor
cadvisorApiFailure := fmt.Errorf("cAdvisor failure")
containerInfo := cadvisorApi.ContainerInfo{}
cadvisorReq := &cadvisorApi.ContainerInfoRequest{}
@ -1275,7 +1331,10 @@ func TestGetContainerInfoWhenCadvisorFailed(t *testing.T) {
}
func TestGetContainerInfoOnNonExistContainer(t *testing.T) {
kubelet, fakeDocker, _, mockCadvisor := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
mockCadvisor := testKubelet.fakeCadvisor
fakeDocker.ContainerList = []docker.APIContainers{}
stats, _ := kubelet.GetContainerInfo("qux", "", "foo", nil)
@ -1286,7 +1345,9 @@ func TestGetContainerInfoOnNonExistContainer(t *testing.T) {
}
func TestGetContainerInfoWhenDockerToolsFailed(t *testing.T) {
kubelet, _, _, mockCadvisor := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
mockCadvisor := testKubelet.fakeCadvisor
expectedErr := fmt.Errorf("List containers error")
kubelet.dockerClient = &errorTestingDockerClient{listContainersError: expectedErr}
@ -1304,7 +1365,9 @@ func TestGetContainerInfoWhenDockerToolsFailed(t *testing.T) {
}
func TestGetContainerInfoWithNoContainers(t *testing.T) {
kubelet, _, _, mockCadvisor := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
mockCadvisor := testKubelet.fakeCadvisor
kubelet.dockerClient = &errorTestingDockerClient{listContainersError: nil}
stats, err := kubelet.GetContainerInfo("qux_ns", "", "foo", nil)
@ -1321,7 +1384,9 @@ func TestGetContainerInfoWithNoContainers(t *testing.T) {
}
func TestGetContainerInfoWithNoMatchingContainers(t *testing.T) {
kubelet, _, _, mockCadvisor := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
mockCadvisor := testKubelet.fakeCadvisor
containerList := []docker.APIContainers{
{
@ -1385,7 +1450,9 @@ func (f *fakeContainerCommandRunner) PortForward(podInfraContainerID string, por
func TestRunInContainerNoSuchPod(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
fakeDocker.ContainerList = []docker.APIContainers{}
kubelet.runner = &fakeCommandRunner
@ -1407,7 +1474,9 @@ func TestRunInContainerNoSuchPod(t *testing.T) {
func TestRunInContainer(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.runner = &fakeCommandRunner
containerID := "abc1234"
@ -1447,7 +1516,9 @@ func TestRunInContainer(t *testing.T) {
func TestRunHandlerExec(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.runner = &fakeCommandRunner
containerID := "abc1234"
@ -1495,7 +1566,8 @@ func (f *fakeHTTP) Get(url string) (*http.Response, error) {
func TestRunHandlerHttp(t *testing.T) {
fakeHttp := fakeHTTP{}
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
kubelet.httpClient = &fakeHttp
podName := "podFoo"
@ -1524,7 +1596,8 @@ func TestRunHandlerHttp(t *testing.T) {
}
func TestNewHandler(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
handler := &api.Handler{
HTTPGet: &api.HTTPGetAction{
Host: "foo",
@ -1555,7 +1628,9 @@ func TestNewHandler(t *testing.T) {
}
func TestSyncPodEventHandlerFails(t *testing.T) {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.httpClient = &fakeHTTP{
err: fmt.Errorf("test error"),
}
@ -1780,7 +1855,9 @@ func TestKubeletGarbageCollection(t *testing.T) {
},
}
for _, test := range tests {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.maxContainerCount = 2
fakeDocker.ContainerList = test.containers
fakeDocker.ContainerMap = test.containerDetails
@ -1945,7 +2022,9 @@ func TestPurgeOldest(t *testing.T) {
},
}
for _, test := range tests {
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.maxContainerCount = 5
fakeDocker.ContainerMap = test.containerDetails
kubelet.purgeOldest(test.ids)
@ -1956,7 +2035,10 @@ func TestPurgeOldest(t *testing.T) {
}
func TestSyncPodsWithPullPolicy(t *testing.T) {
kubelet, fakeDocker, waitGroup, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
waitGroup := testKubelet.waitGroup
puller := kubelet.dockerPuller.(*dockertools.FakeDockerPuller)
puller.HasImages = []string{"existing_one", "want:latest"}
kubelet.podInfraContainerImage = "custom_image_name"
@ -2298,7 +2380,8 @@ func TestMakeEnvironmentVariables(t *testing.T) {
}
for _, tc := range testCases {
kl, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kl := testKubelet.kubelet
kl.masterServiceNamespace = tc.masterServiceNamespace
if tc.nilLister {
kl.serviceLister = nil
@ -2735,7 +2818,9 @@ func TestGetPodReadyCondition(t *testing.T) {
func TestExecInContainerNoSuchPod(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
fakeDocker.ContainerList = []docker.APIContainers{}
kubelet.runner = &fakeCommandRunner
@ -2762,7 +2847,9 @@ func TestExecInContainerNoSuchPod(t *testing.T) {
func TestExecInContainerNoSuchContainer(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.runner = &fakeCommandRunner
podName := "podFoo"
@ -2814,7 +2901,9 @@ func (f *fakeReadWriteCloser) Close() error {
func TestExecInContainer(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.runner = &fakeCommandRunner
podName := "podFoo"
@ -2872,7 +2961,9 @@ func TestExecInContainer(t *testing.T) {
func TestPortForwardNoSuchPod(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
fakeDocker.ContainerList = []docker.APIContainers{}
kubelet.runner = &fakeCommandRunner
@ -2896,7 +2987,9 @@ func TestPortForwardNoSuchPod(t *testing.T) {
func TestPortForwardNoSuchContainer(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.runner = &fakeCommandRunner
podName := "podFoo"
@ -2930,7 +3023,9 @@ func TestPortForwardNoSuchContainer(t *testing.T) {
func TestPortForward(t *testing.T) {
fakeCommandRunner := fakeContainerCommandRunner{}
kubelet, fakeDocker, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
fakeDocker := testKubelet.fakeDocker
kubelet.runner = &fakeCommandRunner
podName := "podFoo"
@ -3003,7 +3098,8 @@ func TestGetHostPortConflicts(t *testing.T) {
// Tests that we handle port conflicts correctly by setting the failed status in status map.
func TestHandlePortConflicts(t *testing.T) {
kl, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kl := testKubelet.kubelet
spec := api.PodSpec{Containers: []api.Container{{Ports: []api.ContainerPort{{HostPort: 80}}}}}
pods := []api.BoundPod{
{
@ -3054,7 +3150,8 @@ func TestHandlePortConflicts(t *testing.T) {
}
func TestPurgingObsoleteStatusMapEntries(t *testing.T) {
kl, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kl := testKubelet.kubelet
pods := []api.BoundPod{
{Spec: api.PodSpec{Containers: []api.Container{{Ports: []api.ContainerPort{{HostPort: 80}}}}}},
{Spec: api.PodSpec{Containers: []api.Container{{Ports: []api.ContainerPort{{HostPort: 80}}}}}},
@ -3072,7 +3169,8 @@ func TestPurgingObsoleteStatusMapEntries(t *testing.T) {
}
func TestValidatePodStatus(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
testCases := []struct {
podPhase api.PodPhase
success bool
@ -3097,7 +3195,8 @@ func TestValidatePodStatus(t *testing.T) {
}
func TestValidateContainerStatus(t *testing.T) {
kubelet, _, _, _ := newTestKubelet(t)
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
containerName := "x"
testCases := []struct {
podInfo api.PodInfo
@ -3135,3 +3234,143 @@ func TestValidateContainerStatus(t *testing.T) {
t.Errorf("expected error with invalid container name")
}
}
func TestUpdateNewNodeStatus(t *testing.T) {
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
kubeClient := testKubelet.fakeKubeClient
mockCadvisor := testKubelet.fakeCadvisor
kubeClient.MinionsList = api.NodeList{Items: []api.Node{
{ObjectMeta: api.ObjectMeta{Name: "testnode"}},
}}
machineInfo := &cadvisorApi.MachineInfo{MachineID: "123", SystemUUID: "abc", NumCores: 2, MemoryCapacity: 1024}
mockCadvisor.On("MachineInfo").Return(machineInfo, nil)
expectedNode := &api.Node{
ObjectMeta: api.ObjectMeta{Name: "testnode"},
Spec: api.NodeSpec{
Capacity: api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(1024, resource.BinarySI),
},
},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFull,
Reason: fmt.Sprintf("kubelet is posting ready status"),
LastProbeTime: util.Time{},
},
},
NodeInfo: api.NodeSystemInfo{
MachineID: "123",
SystemUUID: "abc",
},
},
}
if err := kubelet.updateNodeStatus(); err != nil {
t.Errorf("unexpected error: %v", err)
}
if len(kubeClient.Actions) != 2 {
t.Errorf("unexpected actions: %v", kubeClient.Actions)
}
updatedNode, ok := kubeClient.Actions[1].Value.(*api.Node)
if !ok {
t.Errorf("unexpected object type")
}
if updatedNode.Status.Conditions[0].LastProbeTime.IsZero() {
t.Errorf("unexpected zero last probe timestamp")
}
updatedNode.Status.Conditions[0].LastProbeTime = util.Time{}
if !reflect.DeepEqual(expectedNode, updatedNode) {
t.Errorf("expected \n%v\n, got \n%v", expectedNode, updatedNode)
}
}
func TestUpdateExistingNodeStatus(t *testing.T) {
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
kubeClient := testKubelet.fakeKubeClient
mockCadvisor := testKubelet.fakeCadvisor
kubeClient.MinionsList = api.NodeList{Items: []api.Node{
{
ObjectMeta: api.ObjectMeta{Name: "testnode"},
Spec: api.NodeSpec{
Capacity: api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(3000, resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(2048, resource.BinarySI),
},
},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFull,
Reason: fmt.Sprintf("kubelet is posting ready status"),
LastProbeTime: util.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC),
},
},
},
},
}}
machineInfo := &cadvisorApi.MachineInfo{MachineID: "123", SystemUUID: "abc", NumCores: 2, MemoryCapacity: 1024}
mockCadvisor.On("MachineInfo").Return(machineInfo, nil)
expectedNode := &api.Node{
ObjectMeta: api.ObjectMeta{Name: "testnode"},
Spec: api.NodeSpec{
Capacity: api.ResourceList{
api.ResourceCPU: *resource.NewMilliQuantity(2000, resource.DecimalSI),
api.ResourceMemory: *resource.NewQuantity(1024, resource.BinarySI),
},
},
Status: api.NodeStatus{
Conditions: []api.NodeCondition{
{
Type: api.NodeReady,
Status: api.ConditionFull,
Reason: fmt.Sprintf("kubelet is posting ready status"),
LastProbeTime: util.Time{}, // placeholder
},
},
NodeInfo: api.NodeSystemInfo{
MachineID: "123",
SystemUUID: "abc",
},
},
}
if err := kubelet.updateNodeStatus(); err != nil {
t.Errorf("unexpected error: %v", err)
}
if len(kubeClient.Actions) != 2 {
t.Errorf("unexpected actions: %v", kubeClient.Actions)
}
updatedNode, ok := kubeClient.Actions[1].Value.(*api.Node)
if !ok {
t.Errorf("unexpected object type")
}
if reflect.DeepEqual(updatedNode.Status.Conditions[0].LastProbeTime, util.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC)) {
t.Errorf("expected \n%v\n, got \n%v", updatedNode.Status.Conditions[0].LastProbeTime,
util.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC))
}
updatedNode.Status.Conditions[0].LastProbeTime = util.Time{}
if !reflect.DeepEqual(expectedNode, updatedNode) {
t.Errorf("expected \n%v\n, got \n%v", expectedNode, updatedNode)
}
}
func TestUpdateNodeStatusError(t *testing.T) {
testKubelet := newTestKubelet(t)
kubelet := testKubelet.kubelet
kubeClient := testKubelet.fakeKubeClient
// No matching node for the kubelet
kubeClient.MinionsList = api.NodeList{Items: []api.Node{}}
if err := kubelet.updateNodeStatus(); err == nil {
t.Errorf("unexpected non error: %v")
}
if len(kubeClient.Actions) != nodeStatusUpdateRetry {
t.Errorf("unexpected actions: %v", kubeClient.Actions)
}
}