Example #1
0
func (r *ScaleREST) Get(ctx api.Context, name string) (runtime.Object, error) {
	deployment, err := (*r.registry).GetDeployment(ctx, name)
	if err != nil {
		return nil, errors.NewNotFound(extensions.Resource("deployments/scale"), name)
	}
	return extensions.ScaleFromDeployment(deployment), nil
}
Example #2
0
// ScaleSimple is responsible for updating a deployment's desired replicas count.
func (scaler *DeploymentScaler) ScaleSimple(namespace, name string, preconditions *ScalePrecondition, newSize uint) error {
	deployment, err := scaler.c.Deployments(namespace).Get(name)
	if err != nil {
		return ScaleError{ScaleGetFailure, "Unknown", err}
	}
	if preconditions != nil {
		if err := preconditions.ValidateDeployment(deployment); err != nil {
			return err
		}
	}
	scale := extensions.ScaleFromDeployment(deployment)
	scale.Spec.Replicas = int(newSize)
	if _, err := scaler.c.Scales(namespace).Update("Deployment", scale); err != nil {
		if errors.IsInvalid(err) {
			return ScaleError{ScaleUpdateInvalidFailure, deployment.ResourceVersion, err}
		}
		return ScaleError{ScaleUpdateFailure, deployment.ResourceVersion, err}
	}
	return nil
}
Example #3
0
func (r *ScaleREST) Update(ctx api.Context, obj runtime.Object) (runtime.Object, bool, error) {
	if obj == nil {
		return nil, false, errors.NewBadRequest(fmt.Sprintf("nil update passed to Scale"))
	}
	scale, ok := obj.(*extensions.Scale)
	if !ok {
		return nil, false, errors.NewBadRequest(fmt.Sprintf("wrong object passed to Scale update: %v", obj))
	}

	if errs := extvalidation.ValidateScale(scale); len(errs) > 0 {
		return nil, false, errors.NewInvalid(extensions.Kind("Scale"), scale.Name, errs)
	}

	deployment, err := (*r.registry).GetDeployment(ctx, scale.Name)
	if err != nil {
		return nil, false, errors.NewNotFound(extensions.Resource("deployments/scale"), scale.Name)
	}
	deployment.Spec.Replicas = scale.Spec.Replicas
	deployment, err = (*r.registry).UpdateDeployment(ctx, deployment)
	if err != nil {
		return nil, false, errors.NewConflict(extensions.Resource("deployments/scale"), scale.Name, err)
	}
	return extensions.ScaleFromDeployment(deployment), false, nil
}