func validateObject(obj interface{}) (errors []error) {
switch t := obj.(type) {
case *api.ReplicationController:
errors = api.ValidateManifest(&t.DesiredState.PodTemplate.DesiredState.Manifest)
case *api.ReplicationControllerList:
for i := range t.Items {
errors = append(errors, validateObject(&t.Items[i])...)
}
case *api.Service:
errors = api.ValidateService(t)
case *api.ServiceList:
for i := range t.Items {
errors = append(errors, validateObject(&t.Items[i])...)
}
case *api.Pod:
errors = api.ValidateManifest(&t.DesiredState.Manifest)
case *api.PodList:
for i := range t.Items {
errors = append(errors, validateObject(&t.Items[i])...)
}
default:
return []error{fmt.Errorf("no validation defined for %#v", obj)}
}
return errors
}
func ValidatePod(pod *Pod) (errors []error) {
if !util.IsDNSSubdomain(pod.Name) {
errors = append(errors, apierrs.NewInvalid("Pod.Name", pod.Name))
}
if errs := api.ValidateManifest(&pod.Manifest); len(errs) != 0 {
errors = append(errors, errs...)
}
return errors
}
// syncLoop is the main loop for processing changes. It watches for changes from
// four channels (file, etcd, server, and http) and creates a union of them. For
// any new change seen, will run a sync against desired state and running state. If
// no changes are seen to the configuration, will synchronize the last known desired
// state every sync_frequency seconds.
// Never returns.
func (kl *Kubelet) syncLoop(updateChannel <-chan manifestUpdate, handler SyncHandler) {
last := make(map[string][]api.ContainerManifest)
for {
select {
case u := <-updateChannel:
glog.Infof("Got configuration from %s: %+v", u.source, u.manifests)
last[u.source] = u.manifests
case <-time.After(kl.SyncFrequency):
}
allManifests := []api.ContainerManifest{}
allIds := util.StringSet{}
for src, srcManifests := range last {
for i := range srcManifests {
allErrs := []error{}
m := &srcManifests[i]
if allIds.Has(m.ID) {
allErrs = append(allErrs, api.ValidationError{api.ErrTypeDuplicate, "ContainerManifest.ID", m.ID})
} else {
allIds.Insert(m.ID)
}
if errs := api.ValidateManifest(m); len(errs) != 0 {
allErrs = append(allErrs, errs...)
}
// Check for host-wide HostPort conflicts.
if errs := checkHostPortConflicts(allManifests, m); len(errs) != 0 {
allErrs = append(allErrs, errs...)
}
if len(allErrs) > 0 {
glog.Warningf("Manifest from %s failed validation, ignoring: %v", src, allErrs)
}
}
// TODO(thockin): There's no reason to collect manifests by value. Don't pessimize.
allManifests = append(allManifests, srcManifests...)
}
err := handler.SyncManifests(allManifests)
if err != nil {
glog.Errorf("Couldn't sync containers : %v", err)
}
}
}
func (s *SourceURL) extractFromURL() error {
resp, err := http.Get(s.url)
if err != nil {
return err
}
defer resp.Body.Close()
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return err
}
if len(data) == 0 {
return fmt.Errorf("zero-length data received from %v", s.url)
}
// First try as if it's a single manifest
var manifest api.ContainerManifest
singleErr := yaml.Unmarshal(data, &manifest)
if singleErr == nil {
if errs := api.ValidateManifest(&manifest); len(errs) > 0 {
singleErr = fmt.Errorf("invalid manifest: %v", errs)
}
}
if singleErr == nil {
pod := kubelet.Pod{Name: manifest.ID, Manifest: manifest}
if pod.Name == "" {
pod.Name = "1"
}
s.updates <- kubelet.PodUpdate{[]kubelet.Pod{pod}, kubelet.SET}
return nil
}
// That didn't work, so try an array of manifests.
var manifests []api.ContainerManifest
multiErr := yaml.Unmarshal(data, &manifests)
// We're not sure if the person reading the logs is going to care about the single or
// multiple manifest unmarshalling attempt, so we need to put both in the logs, as is
// done at the end. Hence not returning early here.
if multiErr == nil {
for _, manifest := range manifests {
if errs := api.ValidateManifest(&manifest); len(errs) > 0 {
multiErr = fmt.Errorf("invalid manifest: %v", errs)
break
}
}
}
if multiErr == nil {
pods := []kubelet.Pod{}
for i, manifest := range manifests {
pod := kubelet.Pod{Name: manifest.ID, Manifest: manifest}
if pod.Name == "" {
pod.Name = fmt.Sprintf("%d", i+1)
}
pods = append(pods, pod)
}
s.updates <- kubelet.PodUpdate{pods, kubelet.SET}
return nil
}
return fmt.Errorf("%v: received '%v', but couldn't parse as a "+
"single manifest (%v: %+v) or as multiple manifests (%v: %+v).\n",
s.url, string(data), singleErr, manifest, multiErr, manifests)
}