// 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
}
// 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
}
// 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
}
