func extractFromFile(name string) (kubelet.Pod, error) {
var pod kubelet.Pod
file, err := os.Open(name)
if err != nil {
return pod, err
}
defer file.Close()
data, err := ioutil.ReadAll(file)
if err != nil {
glog.Errorf("Couldn't read from file: %v", err)
return pod, err
}
if err := yaml.Unmarshal(data, &pod.Manifest); err != nil {
return pod, fmt.Errorf("could not unmarshal manifest: %v", err)
}
podName := pod.Manifest.ID
if podName == "" {
podName = simpleSubdomainSafeHash(name)
}
pod.Name = podName
return pod, nil
}
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 resp.StatusCode != 200 {
return fmt.Errorf("%v: %v", s.url, resp.Status)
}
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 := validation.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 := validation.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)
}
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 pod kubelet.Pod
singleErr := yaml.Unmarshal(data, &pod.Manifest)
// TODO: replace with validation
if singleErr == nil && pod.Manifest.Version == "" {
// If data is a []ContainerManifest, trying to put it into a ContainerManifest
// will not give an error but also won't set any of the fields.
// Our docs say that the version field is mandatory, so using that to judge wether
// this was actually successful.
singleErr = fmt.Errorf("got blank version field")
}
if singleErr == nil {
name := pod.Manifest.ID
if name == "" {
name = "1"
}
pod.Name = name
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 && len(manifests) > 0 && manifests[0].Version == "" {
multiErr = fmt.Errorf("got blank version field")
}
if multiErr == nil {
pods := []kubelet.Pod{}
for i := range manifests {
pod := kubelet.Pod{Manifest: manifests[i]}
name := pod.Manifest.ID
if name == "" {
name = fmt.Sprintf("%d", i+1)
}
pod.Name = name
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, pod.Manifest, multiErr, manifests)
}