Beispiel #1
0
// Scale updates a replication controller created by the DeploymentConfig with the provided namespace/name,
// to a new size, with optional precondition check (if preconditions is not nil),optional retries (if retry
//  is not nil), and then optionally waits for it's replica count to reach the new value (if wait is not nil).
func (scaler *DeploymentConfigScaler) Scale(namespace, name string, newSize uint, preconditions *kubectl.ScalePrecondition, retry, waitForReplicas *kubectl.RetryParams) error {
	if preconditions == nil {
		preconditions = &kubectl.ScalePrecondition{Size: -1, ResourceVersion: ""}
	}
	if retry == nil {
		// Make it try only once, immediately
		retry = &kubectl.RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
	}
	cond := kubectl.ScaleCondition(scaler, preconditions, namespace, name, newSize)
	if err := wait.Poll(retry.Interval, retry.Timeout, cond); err != nil {
		if scaleErr := err.(kubectl.ControllerScaleError); kerrors.IsNotFound(scaleErr.ActualError) {
			glog.Infof("No deployment found for dc/%s. Scaling the deployment configuration template...", name)
			dc, err := scaler.dcClient.DeploymentConfigs(namespace).Get(name)
			if err != nil {
				return err
			}
			dc.Template.ControllerTemplate.Replicas = int(newSize)

			if _, err := scaler.dcClient.DeploymentConfigs(namespace).Update(dc); err != nil {
				return err
			}
			return nil
		}
		return err
	}
	if waitForReplicas != nil {
		rc, err := scaler.rcClient.ReplicationControllers(namespace).Get(name)
		if err != nil {
			return err
		}
		return wait.Poll(waitForReplicas.Interval, waitForReplicas.Timeout, kclient.ControllerHasDesiredReplicas(scaler.clientInterface, rc))
	}
	return nil
}
Beispiel #2
0
// Scale updates the DeploymentConfig with the provided namespace/name, to a
// new size, with optional precondition check (if preconditions is not nil),
// optional retries (if retry is not nil), and then optionally waits for its
// deployment replica count to reach the new value (if wait is not nil).
func (scaler *DeploymentConfigScaler) Scale(namespace, name string, newSize uint, preconditions *kubectl.ScalePrecondition, retry, waitForReplicas *kubectl.RetryParams) error {
	if preconditions == nil {
		preconditions = &kubectl.ScalePrecondition{Size: -1, ResourceVersion: ""}
	}
	if retry == nil {
		// Make it try only once, immediately
		retry = &kubectl.RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
	}
	cond := kubectl.ScaleCondition(scaler, preconditions, namespace, name, newSize)
	if err := wait.Poll(retry.Interval, retry.Timeout, cond); err != nil {
		return err
	}
	if waitForReplicas != nil {
		dc, err := scaler.dcClient.DeploymentConfigs(namespace).Get(name)
		if err != nil {
			return err
		}
		rc, err := scaler.rcClient.ReplicationControllers(namespace).Get(util.LatestDeploymentNameForConfig(dc))
		if err != nil {
			return err
		}
		return wait.Poll(waitForReplicas.Interval, waitForReplicas.Timeout, controllerHasSpecifiedReplicas(scaler.clientInterface, rc, dc.Template.ControllerTemplate.Replicas))
	}
	return nil
}
Beispiel #3
0
// Scale updates a replication controller created by the DeploymentConfig with the provided namespace/name,
// to a new size, with optional precondition check (if preconditions is not nil),optional retries (if retry
//  is not nil), and then optionally waits for it's replica count to reach the new value (if wait is not nil).
func (scaler *DeploymentConfigScaler) Scale(namespace, name string, newSize uint, preconditions *kubectl.ScalePrecondition, retry, waitForReplicas *kubectl.RetryParams) error {
	if preconditions == nil {
		preconditions = &kubectl.ScalePrecondition{-1, ""}
	}
	if retry == nil {
		// Make it try only once, immediately
		retry = &kubectl.RetryParams{Interval: time.Millisecond, Timeout: time.Millisecond}
	}
	cond := kubectl.ScaleCondition(scaler, preconditions, namespace, name, newSize)
	if err := wait.Poll(retry.Interval, retry.Timeout, cond); err != nil {
		return err
	}
	if waitForReplicas != nil {
		rc, err := scaler.c.GetReplicationController(namespace, name)
		if err != nil {
			return err
		}
		return wait.Poll(waitForReplicas.Interval, waitForReplicas.Timeout,
			scaler.c.ControllerHasDesiredReplicas(rc))
	}
	return nil
}