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
}
func extractFromFile(filename string) (api.BoundPod, error) {
var pod api.BoundPod
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
}
manifest := &api.ContainerManifest{}
// TODO: use api.Scheme.DecodeInto
if err := yaml.Unmarshal(data, manifest); err != nil {
return pod, fmt.Errorf("can't unmarshal file %q: %v", filename, err)
}
if err := api.Scheme.Convert(manifest, &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
}
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 = hex.EncodeToString(hasher.Sum(nil)[0:])
glog.V(5).Infof("Generated UID %q for pod %q from file %s", pod.UID, pod.Name, filename)
}
if len(pod.Namespace) == 0 {
hasher := adler32.New()
fmt.Fprint(hasher, filename)
// TODO: file-<sum>.hostname would be better, if DNS subdomains
// are allowed for namespace (some places only allow DNS
// labels).
pod.Namespace = fmt.Sprintf("file-%08x-%s", hasher.Sum32(), hostname)
glog.V(5).Infof("Generated 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(1).Infof("Got pod from file %q: %s.%s (%s)", filename, pod.Namespace, pod.Name, pod.UID)
}
return pod, nil
}
func verifyPackUnpack(t *testing.T, podNamespace, podUID, podName, containerName string) {
container := &api.Container{Name: containerName}
hasher := adler32.New()
util.DeepHashObject(hasher, *container)
computedHash := uint64(hasher.Sum32())
podFullName := fmt.Sprintf("%s.%s", podName, podNamespace)
name := BuildDockerName(podUID, podFullName, container)
returnedPodFullName, returnedUID, returnedContainerName, hash := ParseDockerName(name)
if podFullName != returnedPodFullName || podUID != returnedUID || containerName != returnedContainerName || computedHash != hash {
t.Errorf("For (%s, %s, %s, %d), unpacked (%s, %s, %s, %d)", podFullName, podUID, containerName, computedHash, returnedPodFullName, returnedUID, returnedContainerName, hash)
}
}
func hashAddresses(addrs addressSet) string {
// Flatten the list of addresses into a string so it can be used as a
// map key. Unfortunately, DeepHashObject is implemented in terms of
// spew, and spew does not handle non-primitive map keys well. So
// first we collapse it into a slice, sort the slice, then hash that.
slice := []*api.EndpointAddress{}
for k := range addrs {
slice = append(slice, k)
}
sort.Sort(addrPtrsByIP(slice))
hasher := md5.New()
util.DeepHashObject(hasher, slice)
return hex.EncodeToString(hasher.Sum(nil)[0:])
}
func applyDefaults(pod *api.BoundPod, url string) {
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)
}
if len(pod.Namespace) == 0 {
hasher := adler32.New()
fmt.Fprint(hasher, url)
pod.Namespace = fmt.Sprintf("url-%08x", hasher.Sum32())
glog.V(5).Infof("Generated namespace %q for pod %q from URL %s", pod.Namespace, pod.Name, url)
}
}
func verifyPackUnpack(t *testing.T, podNamespace, podUID, podName, containerName string) {
container := &api.Container{Name: containerName}
hasher := adler32.New()
util.DeepHashObject(hasher, *container)
computedHash := uint64(hasher.Sum32())
podFullName := fmt.Sprintf("%s_%s", podName, podNamespace)
name := BuildDockerName(KubeletContainerName{podFullName, types.UID(podUID), container.Name}, container)
returned, hash, err := ParseDockerName(name)
if err != nil {
t.Errorf("Failed to parse Docker container name %q: %v", name, err)
}
if podFullName != returned.PodFullName || podUID != string(returned.PodUID) || containerName != returned.ContainerName || computedHash != hash {
t.Errorf("For (%s, %s, %s, %d), unpacked (%s, %s, %s, %d)", podFullName, podUID, containerName, computedHash, returned.PodFullName, returned.PodUID, returned.ContainerName, hash)
}
}
func applyDefaults(pod *api.BoundPod, url string) {
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.
if len(pod.Name) == 0 {
pod.Name = string(pod.UID)
glog.V(5).Infof("Generate Name %q from UID %q from URL %s", pod.Name, pod.UID, url)
}
if len(pod.Namespace) == 0 {
hasher := adler32.New()
fmt.Fprint(hasher, url)
pod.Namespace = fmt.Sprintf("url-%08x", hasher.Sum32())
glog.V(5).Infof("Generated namespace %q for pod %q from URL %s", pod.Namespace, pod.Name, url)
}
}
func HashContainer(container *api.Container) uint64 {
hash := adler32.New()
util.DeepHashObject(hash, *container)
return uint64(hash.Sum32())
}
func extractFromFile(filename string) (api.BoundPod, error) {
var pod api.BoundPod
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 BoundPod (which is a well-understood conversion). This
// avoids writing a v1beta1.ContainerManifest -> api.BoundPod
// conversion which would be identical to the api.ContainerManifest ->
// api.BoundPod 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
}
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)
glog.V(5).Infof("Generated Name %q for UID %q from file %s", pod.Name, pod.UID, filename)
}
if len(pod.Namespace) == 0 {
hasher := adler32.New()
fmt.Fprint(hasher, filename)
// TODO: file-<sum>.hostname would be better, if DNS subdomains
// are allowed for namespace (some places only allow DNS
// labels).
pod.Namespace = fmt.Sprintf("file-%08x-%s", hasher.Sum32(), hostname)
glog.V(5).Infof("Generated 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(1).Infof("Got pod from file %q: %s.%s (%s)", filename, pod.Namespace, pod.Name, pod.UID)
}
return pod, nil
}
func hashObject(hasher hash.Hash, obj interface{}) []byte {
util.DeepHashObject(hasher, obj)
return hasher.Sum(nil)
}