// runOnce runs a given set of pods and returns their status.
func (kl *Kubelet) runOnce(pods []api.BoundPod) (results []RunPodResult, err error) {
if kl.dockerPuller == nil {
kl.dockerPuller = dockertools.NewDockerPuller(kl.dockerClient, kl.pullQPS, kl.pullBurst)
}
pods = filterHostPortConflicts(pods)
ch := make(chan RunPodResult)
for i := range pods {
pod := pods[i] // Make a copy
go func() {
err := kl.runPod(pod)
ch <- RunPodResult{&pod, err}
}()
}
glog.Infof("waiting for %d pods", len(pods))
failedPods := []string{}
for i := 0; i < len(pods); i++ {
res := <-ch
results = append(results, res)
if res.Err != nil {
// TODO(proppy): report which containers failed the pod.
glog.Infof("failed to start pod %q: %v", res.Pod.Name, res.Err)
failedPods = append(failedPods, res.Pod.Name)
} else {
glog.Infof("started pod %q", res.Pod.Name)
}
}
if len(failedPods) > 0 {
return results, fmt.Errorf("error running pods: %v", failedPods)
}
glog.Infof("%d pods started", len(pods))
return results, err
}
// Run starts the kubelet reacting to config updates
func (kl *Kubelet) Run(updates <-chan PodUpdate) {
if kl.logServer == nil {
kl.logServer = http.StripPrefix("/logs/", http.FileServer(http.Dir("/var/log/")))
}
if kl.dockerPuller == nil {
kl.dockerPuller = dockertools.NewDockerPuller(kl.dockerClient, kl.pullQPS, kl.pullBurst)
}
if kl.healthChecker == nil {
kl.healthChecker = health.NewHealthChecker()
}
kl.syncLoop(updates, kl)
}