func (task *provisionerTask) setErrorStatus(message string, machine *apiprovisioner.Machine, err error) error {
logger.Errorf(message, machine, err)
if err1 := machine.SetStatus(params.StatusError, err.Error(), nil); err1 != nil {
// Something is wrong with this machine, better report it back.
return errors.Annotatef(err1, "cannot set error status for machine %q", machine)
}
return nil
}
func (task *provisionerTask) startMachine(
machine *apiprovisioner.Machine,
provisioningInfo *params.ProvisioningInfo,
startInstanceParams environs.StartInstanceParams,
) error {
var result *environs.StartInstanceResult
for attemptsLeft := task.retryStartInstanceStrategy.retryCount; attemptsLeft >= 0; attemptsLeft-- {
attemptResult, err := task.broker.StartInstance(startInstanceParams)
if err == nil {
result = attemptResult
break
} else if attemptsLeft <= 0 {
// Set the state to error, so the machine will be skipped
// next time until the error is resolved, but don't return
// an error; just keep going with the other machines.
return task.setErrorStatus("cannot start instance for machine %q: %v", machine, err)
}
logger.Warningf("%v", errors.Annotate(err, "starting instance"))
retryMsg := fmt.Sprintf("will retry to start instance in %v", task.retryStartInstanceStrategy.retryDelay)
if err2 := machine.SetStatus(status.Pending, retryMsg, nil); err2 != nil {
logger.Errorf("%v", err2)
}
logger.Infof(retryMsg)
select {
case <-task.catacomb.Dying():
return task.catacomb.ErrDying()
case <-time.After(task.retryStartInstanceStrategy.retryDelay):
}
}
networkConfig := networkingcommon.NetworkConfigFromInterfaceInfo(result.NetworkInfo)
volumes := volumesToAPIserver(result.Volumes)
volumeNameToAttachmentInfo := volumeAttachmentsToAPIserver(result.VolumeAttachments)
if err := machine.SetInstanceInfo(
result.Instance.Id(),
startInstanceParams.InstanceConfig.MachineNonce,
result.Hardware,
networkConfig,
volumes,
volumeNameToAttachmentInfo,
); err != nil {
// We need to stop the instance right away here, set error status and go on.
if err2 := task.setErrorStatus("cannot register instance for machine %v: %v", machine, err); err2 != nil {
logger.Errorf("%v", errors.Annotate(err2, "cannot set machine's status"))
}
if err2 := task.broker.StopInstances(result.Instance.Id()); err2 != nil {
logger.Errorf("%v", errors.Annotate(err2, "after failing to set instance info"))
}
return errors.Annotate(err, "cannot set instance info")
}
logger.Infof(
"started machine %s as instance %s with hardware %q, network config %+v, volumes %v, volume attachments %v, subnets to zones %v",
machine,
result.Instance.Id(),
result.Hardware,
networkConfig,
volumes,
volumeNameToAttachmentInfo,
startInstanceParams.SubnetsToZones,
)
return nil
}
