github/kubernetes
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Fix a bug if the container is non-existent.

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This commit is contained in:
Brendan Burns 2014-06-09 16:43:55 -07:00
parent fd36e8b9f2
commit 62f6291377
2 changed files with 21 additions and 8 deletions
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20
pkg/kubelet/kubelet.go
View File

@ -152,26 +152,29 @@ func (kl *Kubelet) ContainerExists(manifest *api.ContainerManifest, container *a
return false, "", nil
}
func (kl *Kubelet) GetContainerID(name string) (string, error) {
func (kl *Kubelet) GetContainerID(name string) (string, bool, error) {
containerList, err := kl.DockerClient.ListContainers(docker.ListContainersOptions{})
if err != nil {
return "", err
return "", false, err
}
for _, value := range containerList {
if strings.Contains(value.Names[0], name) {
return value.ID, nil
return value.ID, true, nil
}
}
return "", fmt.Errorf("couldn't find name: %s", name)
return "", false, nil
}
// Get a container by name.
// returns the container data from Docker, or an error if one exists.
func (kl *Kubelet) GetContainerByName(name string) (*docker.Container, error) {
id, err := kl.GetContainerID(name)
id, found, err := kl.GetContainerID(name)
if err != nil {
return nil, err
}
if !found {
return nil, nil
}
return kl.DockerClient.InspectContainer(id)
}
@ -300,10 +303,15 @@ func (kl *Kubelet) RunContainer(manifest *api.ContainerManifest, container *api.
}
func (kl *Kubelet) KillContainer(name string) error {
id, err := kl.GetContainerID(name)
id, found, err := kl.GetContainerID(name)
if err != nil {
return err
}
if !found {
// This is weird, but not an error, so yell and then return nil
log.Printf("Couldn't find container: %s", name)
return nil
}
err = kl.DockerClient.StopContainer(id, 10)
manifestId, containerName := dockerNameToManifestAndContainer(name)
kl.LogEvent(&api.Event{

9
pkg/kubelet/kubelet_server.go
View File

@ -34,7 +34,7 @@ type KubeletServer struct {
// kubeletInterface contains all the kubelet methods required by the server.
// For testablitiy.
type kubeletInterface interface {
GetContainerID(name string) (string, error)
GetContainerID(name string) (string, bool, error)
GetContainerInfo(name string) (string, error)
}
@ -71,7 +71,12 @@ func (s *KubeletServer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
fmt.Fprint(w, "Missing container query arg.")
return
}
id, err := s.Kubelet.GetContainerID(container)
id, found, err := s.Kubelet.GetContainerID(container)
if (!found) {
w.WriteHeader(http.StatusOK)
fmt.Fprint(w, "{}")
return
}
body, err := s.Kubelet.GetContainerInfo(id)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)