func applyDefaults(pod *api.Pod, url string) error {
if len(pod.UID) == 0 {
hasher := md5.New()
fmt.Fprintf(hasher, "url:%s", url)
util.DeepHashObject(hasher, pod)
pod.UID = types.UID(hex.EncodeToString(hasher.Sum(nil)[0:]))
glog.V(5).Infof("Generated UID %q for pod %q from URL %s", pod.UID, pod.Name, url)
}
// This is required for backward compatibility, and should be removed once we
// completely deprecate ContainerManifest.
var err error
if len(pod.Name) == 0 {
pod.Name = string(pod.UID)
}
pod.Name, err = GeneratePodName(pod.Name)
if err != nil {
return err
}
glog.V(5).Infof("Generated Name %q for UID %q from URL %s", pod.Name, pod.UID, url)
// Always overrides the namespace.
pod.Namespace = kubelet.NamespaceDefault
glog.V(5).Infof("Using namespace %q for pod %q from URL %s", pod.Namespace, pod.Name, url)
return nil
}
func applyDefaults(pod *api.Pod, source string, isFile bool, nodeName string) error {
if len(pod.UID) == 0 {
hasher := md5.New()
if isFile {
fmt.Fprintf(hasher, "host:%s", nodeName)
fmt.Fprintf(hasher, "file:%s", source)
} else {
fmt.Fprintf(hasher, "url:%s", source)
}
util.DeepHashObject(hasher, pod)
pod.UID = types.UID(hex.EncodeToString(hasher.Sum(nil)[0:]))
glog.V(5).Infof("Generated UID %q pod %q from %s", pod.UID, pod.Name, source)
}
// This is required for backward compatibility, and should be removed once we
// completely deprecate ContainerManifest.
if len(pod.Name) == 0 {
pod.Name = string(pod.UID)
}
pod.Name = generatePodName(pod.Name, nodeName)
glog.V(5).Infof("Generated Name %q for UID %q from URL %s", pod.Name, pod.UID, source)
if pod.Namespace == "" {
pod.Namespace = kubelet.NamespaceDefault
}
glog.V(5).Infof("Using namespace %q for pod %q from %s", pod.Namespace, pod.Name, source)
// Set the Host field to indicate this pod is scheduled on the current node.
pod.Spec.NodeName = nodeName
pod.ObjectMeta.SelfLink = getSelfLink(pod.Name, pod.Namespace)
return nil
}
// annotateForExecutorOnSlave sets the BindingHostKey annotation which
// marks the pod to be processed by the scheduler and launched as a Mesos
// task. The executor on the slave will to the final binding to finish the
// scheduling in the kubernetes sense.
func annotateForExecutorOnSlave(pod *api.Pod, slave string) {
if pod.Annotations == nil {
pod.Annotations = make(map[string]string)
} else {
oemAnn := pod.Annotations
pod.Annotations = make(map[string]string)
for k, v := range oemAnn {
pod.Annotations[k] = v
}
}
pod.Annotations[annotation.BindingHostKey] = slave
}
// ToAPIPod converts Pod to api.Pod. Note that if a field in api.Pod has no
// corresponding field in Pod, the field would not be populated.
func (p *Pod) ToAPIPod() *api.Pod {
var pod api.Pod
pod.UID = p.ID
pod.Name = p.Name
pod.Namespace = p.Namespace
pod.Status = p.Status
for _, c := range p.Containers {
var container api.Container
container.Name = c.Name
container.Image = c.Image
pod.Spec.Containers = append(pod.Spec.Containers, container)
}
return &pod
}
// ValidatePodUpdate tests to see if the update is legal for an end user to make. newPod is updated with fields
// that cannot be changed.
func ValidatePodUpdate(newPod, oldPod *api.Pod) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
allErrs = append(allErrs, ValidateObjectMetaUpdate(&oldPod.ObjectMeta, &newPod.ObjectMeta).Prefix("metadata")...)
if len(newPod.Spec.Containers) != len(oldPod.Spec.Containers) {
allErrs = append(allErrs, errs.NewFieldInvalid("spec.containers", newPod.Spec.Containers, "may not add or remove containers"))
return allErrs
}
pod := *newPod
// Tricky, we need to copy the container list so that we don't overwrite the update
var newContainers []api.Container
for ix, container := range pod.Spec.Containers {
container.Image = oldPod.Spec.Containers[ix].Image
newContainers = append(newContainers, container)
}
pod.Spec.Containers = newContainers
if !api.Semantic.DeepEqual(pod.Spec, oldPod.Spec) {
// TODO: a better error would include all immutable fields explicitly.
allErrs = append(allErrs, errs.NewFieldInvalid("spec.containers", newPod.Spec.Containers, "some fields are immutable"))
}
newPod.Status = oldPod.Status
return allErrs
}
func agedPod(namespace, name string, phase kapi.PodPhase, ageInMinutes int64, containerImages ...string) kapi.Pod {
pod := kapi.Pod{
ObjectMeta: kapi.ObjectMeta{
Namespace: namespace,
Name: name,
},
Spec: podSpec(containerImages...),
Status: kapi.PodStatus{
Phase: phase,
},
}
if ageInMinutes >= 0 {
pod.CreationTimestamp = util.NewTime(util.Now().Add(time.Duration(-1*ageInMinutes) * time.Minute))
}
return pod
}
func TestExtractJson(t *testing.T) {
mockRegistry := MockPodRegistry{}
storage := PodRegistryStorage{
registry: &mockRegistry,
}
pod := api.Pod{
JSONBase: api.JSONBase{
ID: "foo",
},
}
body, err := json.Marshal(pod)
expectNoError(t, err)
podOut, err := storage.Extract(string(body))
expectNoError(t, err)
// Extract adds in a kind
pod.Kind = "cluster#pod"
if !reflect.DeepEqual(pod, podOut) {
t.Errorf("Expected %#v, found %#v", pod, podOut)
}
}
func (f *typeBasedFactoryStrategy) CreateBuildPod(build *buildapi.Build) (*kapi.Pod, error) {
var pod *kapi.Pod
var err error
switch build.Parameters.Strategy.Type {
case buildapi.DockerBuildStrategyType:
pod, err = f.DockerBuildStrategy.CreateBuildPod(build)
case buildapi.SourceBuildStrategyType:
pod, err = f.SourceBuildStrategy.CreateBuildPod(build)
case buildapi.CustomBuildStrategyType:
pod, err = f.CustomBuildStrategy.CreateBuildPod(build)
default:
return nil, fmt.Errorf("no supported build strategy defined for Build %s/%s with type %s", build.Namespace, build.Name, build.Parameters.Strategy.Type)
}
if pod != nil {
if pod.Annotations == nil {
pod.Annotations = map[string]string{}
}
pod.Annotations[buildapi.BuildAnnotation] = build.Name
}
return pod, err
}
// ValidatePodStatusUpdate tests to see if the update is legal for an end user to make. newPod is updated with fields
// that cannot be changed.
func ValidatePodStatusUpdate(newPod, oldPod *api.Pod) errs.ValidationErrorList {
allErrs := errs.ValidationErrorList{}
allErrs = append(allErrs, ValidateObjectMetaUpdate(&oldPod.ObjectMeta, &newPod.ObjectMeta).Prefix("metadata")...)
// TODO: allow change when bindings are properly decoupled from pods
if newPod.Status.Host != oldPod.Status.Host {
allErrs = append(allErrs, errs.NewFieldInvalid("status.host", newPod.Status.Host, "pod host cannot be changed directly"))
}
// For status update we ignore changes to pod spec.
newPod.Spec = oldPod.Spec
return allErrs
}
func (c *Controller) updateInstanceMetadata(
pod *api.Pod, nic *types.VirtualMachineInterface, address, gateway string) {
doUpdate := false
if pod.Annotations == nil {
pod.Annotations = make(map[string]string)
doUpdate = true
}
if updateElement(pod.Annotations, "nic_uuid", nic.GetUuid()) {
doUpdate = true
}
var mac_address string
addressArr := nic.GetVirtualMachineInterfaceMacAddresses()
if len(addressArr.MacAddress) > 0 {
mac_address = addressArr.MacAddress[0]
} else {
glog.Errorf("interface %s: no mac-addresses", nic.GetName())
}
if updateElement(pod.Annotations, "mac_address", mac_address) {
doUpdate = true
}
if updateElement(pod.Annotations, "ip_address", address) {
doUpdate = true
}
if updateElement(pod.Annotations, "gateway", gateway) {
doUpdate = true
}
if !doUpdate {
return
}
_, err := c.kube.Pods(pod.Namespace).Update(pod)
if err != nil {
// Update will return an error if the pod object that we are
// working with is stale.
glog.Infof("Pod Update %s: %v", pod.Name, err)
}
}
func (storage *PodRegistryStorage) Extract(body string) (interface{}, error) {
pod := api.Pod{}
err := json.Unmarshal([]byte(body), &pod)
pod.Kind = "cluster#pod"
return pod, err
}
func extractFromFile(filename string) (api.Pod, error) {
var pod api.Pod
glog.V(3).Infof("Reading config file %q", filename)
file, err := os.Open(filename)
if err != nil {
return pod, err
}
defer file.Close()
data, err := ioutil.ReadAll(file)
if err != nil {
return pod, err
}
// TODO: use api.Scheme.DecodeInto
// This is awful. DecodeInto() expects to find an APIObject, which
// Manifest is not. We keep reading manifest for now for compat, but
// we will eventually change it to read Pod (at which point this all
// becomes nicer). Until then, we assert that the ContainerManifest
// structure on disk is always v1beta1. Read that, convert it to a
// "current" ContainerManifest (should be ~identical), then convert
// that to a Pod (which is a well-understood conversion). This
// avoids writing a v1beta1.ContainerManifest -> api.Pod
// conversion which would be identical to the api.ContainerManifest ->
// api.Pod conversion.
oldManifest := &v1beta1.ContainerManifest{}
if err := yaml.Unmarshal(data, oldManifest); err != nil {
return pod, fmt.Errorf("can't unmarshal file %q: %v", filename, err)
}
newManifest := &api.ContainerManifest{}
if err := api.Scheme.Convert(oldManifest, newManifest); err != nil {
return pod, fmt.Errorf("can't convert pod from file %q: %v", filename, err)
}
if err := api.Scheme.Convert(newManifest, &pod); err != nil {
return pod, fmt.Errorf("can't convert pod from file %q: %v", filename, err)
}
hostname, err := os.Hostname() //TODO: kubelet name would be better
if err != nil {
return pod, err
}
hostname = strings.ToLower(hostname)
if len(pod.UID) == 0 {
hasher := md5.New()
fmt.Fprintf(hasher, "host:%s", hostname)
fmt.Fprintf(hasher, "file:%s", filename)
util.DeepHashObject(hasher, pod)
pod.UID = types.UID(hex.EncodeToString(hasher.Sum(nil)[0:]))
glog.V(5).Infof("Generated UID %q for pod %q from file %s", pod.UID, pod.Name, filename)
}
// This is required for backward compatibility, and should be removed once we
// completely deprecate ContainerManifest.
if len(pod.Name) == 0 {
pod.Name = string(pod.UID)
}
if pod.Name, err = GeneratePodName(pod.Name); err != nil {
return pod, err
}
glog.V(5).Infof("Generated Name %q for UID %q from file %s", pod.Name, pod.UID, filename)
// Always overrides the namespace provided by the file.
pod.Namespace = kubelet.NamespaceDefault
glog.V(5).Infof("Using namespace %q for pod %q from file %s", pod.Namespace, pod.Name, filename)
// TODO(dchen1107): BoundPod is not type of runtime.Object. Once we allow kubelet talks
// about Pod directly, we can use SelfLinker defined in package: latest
// Currently just simply follow the same format in resthandler.go
pod.ObjectMeta.SelfLink = fmt.Sprintf("/api/v1beta2/pods/%s?namespace=%s",
pod.Name, pod.Namespace)
if glog.V(4) {
glog.Infof("Got pod from file %q: %#v", filename, pod)
} else {
glog.V(5).Infof("Got pod from file %q: %s.%s (%s)", filename, pod.Namespace, pod.Name, pod.UID)
}
return pod, nil
}
func TestGetRestartCount(t *testing.T) {
dm, fakeDocker := newTestDockerManager()
containers := []api.Container{
{Name: "bar"},
}
pod := api.Pod{
ObjectMeta: api.ObjectMeta{
UID: "12345678",
Name: "foo",
Namespace: "new",
},
Spec: api.PodSpec{
Containers: containers,
},
}
// format is // k8s_<container-id>_<pod-fullname>_<pod-uid>
names := []string{"/k8s_bar." + strconv.FormatUint(kubecontainer.HashContainer(&containers[0]), 16) + "_foo_new_12345678_0"}
currTime := time.Now()
containerMap := map[string]*docker.Container{
"1234": {
ID: "1234",
Name: "bar",
Config: &docker.Config{},
State: docker.State{
ExitCode: 42,
StartedAt: currTime.Add(-60 * time.Second),
FinishedAt: currTime.Add(-60 * time.Second),
},
},
"5678": {
ID: "5678",
Name: "bar",
Config: &docker.Config{},
State: docker.State{
ExitCode: 42,
StartedAt: currTime.Add(-30 * time.Second),
FinishedAt: currTime.Add(-30 * time.Second),
},
},
"9101": {
ID: "9101",
Name: "bar",
Config: &docker.Config{},
State: docker.State{
ExitCode: 42,
StartedAt: currTime.Add(30 * time.Minute),
FinishedAt: currTime.Add(30 * time.Minute),
},
},
}
fakeDocker.ContainerMap = containerMap
// Helper function for verifying the restart count.
verifyRestartCount := func(pod *api.Pod, expectedCount int) api.PodStatus {
status, err := dm.GetPodStatus(pod)
if err != nil {
t.Fatalf("unexpected error %v", err)
}
restartCount := status.ContainerStatuses[0].RestartCount
if restartCount != expectedCount {
t.Errorf("expected %d restart count, got %d", expectedCount, restartCount)
}
return *status
}
// Container "bar" has failed twice; create two dead docker containers.
// TODO: container lists are expected to be sorted reversely by time.
// We should fix FakeDockerClient to sort the list before returning.
fakeDocker.ExitedContainerList = []docker.APIContainers{{Names: names, ID: "5678"}, {Names: names, ID: "1234"}}
pod.Status = verifyRestartCount(&pod, 1)
// Found a new dead container. The restart count should be incremented.
fakeDocker.ExitedContainerList = []docker.APIContainers{
{Names: names, ID: "9101"}, {Names: names, ID: "5678"}, {Names: names, ID: "1234"}}
pod.Status = verifyRestartCount(&pod, 2)
// All dead containers have been GC'd. The restart count should persist
// (i.e., remain the same).
fakeDocker.ExitedContainerList = []docker.APIContainers{}
verifyRestartCount(&pod, 2)
}