// doProbe probes the container once and records the result.
// Returns whether the worker should continue.
func doProbe(m *manager, w *worker) (keepGoing bool) {
defer util.HandleCrash(func(_ interface{}) { keepGoing = true })
status, ok := m.statusManager.GetPodStatus(w.pod.UID)
if !ok {
// Either the pod has not been created yet, or it was already deleted.
glog.V(3).Infof("No status for pod: %v", kubeutil.FormatPodName(w.pod))
return true
}
// Worker should terminate if pod is terminated.
if status.Phase == api.PodFailed || status.Phase == api.PodSucceeded {
glog.V(3).Infof("Pod %v %v, exiting probe worker",
kubeutil.FormatPodName(w.pod), status.Phase)
return false
}
c, ok := api.GetContainerStatus(status.ContainerStatuses, w.container.Name)
if !ok {
// Either the container has not been created yet, or it was deleted.
glog.V(3).Infof("Non-existant container probed: %v - %v",
kubeutil.FormatPodName(w.pod), w.container.Name)
return true // Wait for more information.
}
if w.containerID != types.UID(c.ContainerID) {
if w.containerID != "" {
m.readinessCache.removeReadiness(string(w.containerID))
}
w.containerID = types.UID(kubecontainer.TrimRuntimePrefix(c.ContainerID))
}
if c.State.Running == nil {
glog.V(3).Infof("Non-running container probed: %v - %v",
kubeutil.FormatPodName(w.pod), w.container.Name)
m.readinessCache.setReadiness(string(w.containerID), false)
// Abort if the container will not be restarted.
return c.State.Terminated == nil ||
w.pod.Spec.RestartPolicy != api.RestartPolicyNever
}
if int64(time.Since(c.State.Running.StartedAt.Time).Seconds()) < w.spec.InitialDelaySeconds {
// Readiness defaults to false during the initial delay.
m.readinessCache.setReadiness(string(w.containerID), false)
return true
}
// TODO: Move error handling out of prober.
result, _ := m.prober.ProbeReadiness(w.pod, status, w.container, string(w.containerID))
if result != probe.Unknown {
m.readinessCache.setReadiness(string(w.containerID), result != probe.Failure)
}
return true
}
func (m *manager) UpdatePodStatus(podUID types.UID, podStatus *api.PodStatus) {
for i, c := range podStatus.ContainerStatuses {
var ready bool
if c.State.Running == nil {
ready = false
} else if result, ok := m.readinessCache.getReadiness(kubecontainer.TrimRuntimePrefix(c.ContainerID)); ok {
ready = result
} else {
// The check whether there is a probe which hasn't run yet.
_, exists := m.getReadinessProbe(podUID, c.Name)
ready = !exists
}
podStatus.ContainerStatuses[i].Ready = ready
}
}