// Create generates a new DeploymentConfig representing a rollback.
func (r *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
namespace, ok := kapi.NamespaceFrom(ctx)
if !ok {
return nil, kerrors.NewBadRequest("namespace parameter required.")
}
rollback, ok := obj.(*deployapi.DeploymentConfigRollback)
if !ok {
return nil, kerrors.NewBadRequest(fmt.Sprintf("not a rollback spec: %#v", obj))
}
if errs := validation.ValidateDeploymentConfigRollback(rollback); len(errs) > 0 {
return nil, kerrors.NewInvalid(deployapi.Kind("DeploymentConfigRollback"), rollback.Name, errs)
}
from, err := r.dn.DeploymentConfigs(namespace).Get(rollback.Name)
if err != nil {
return nil, newInvalidError(rollback, fmt.Sprintf("cannot get deployment config %q: %v", rollback.Name, err))
}
switch from.Status.LatestVersion {
case 0:
return nil, newInvalidError(rollback, "cannot rollback an undeployed config")
case 1:
return nil, newInvalidError(rollback, fmt.Sprintf("no previous deployment exists for %q", deployutil.LabelForDeploymentConfig(from)))
}
revision := from.Status.LatestVersion - 1
if rollback.Spec.Revision > 0 {
revision = rollback.Spec.Revision
}
// Find the target deployment and decode its config.
name := deployutil.DeploymentNameForConfigVersion(from.Name, revision)
targetDeployment, err := r.rn.ReplicationControllers(namespace).Get(name)
if err != nil {
return nil, newInvalidError(rollback, err.Error())
}
to, err := deployutil.DecodeDeploymentConfig(targetDeployment, r.codec)
if err != nil {
return nil, newInvalidError(rollback, fmt.Sprintf("couldn't decode deployment config from deployment: %v", err))
}
if from.Annotations == nil && len(rollback.UpdatedAnnotations) > 0 {
from.Annotations = make(map[string]string)
}
for key, value := range rollback.UpdatedAnnotations {
from.Annotations[key] = value
}
return r.generator.GenerateRollback(from, to, &rollback.Spec)
}
// Create generates a new DeploymentConfig representing a rollback.
func (s *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
rollback, ok := obj.(*deployapi.DeploymentConfigRollback)
if !ok {
return nil, kerrors.NewBadRequest(fmt.Sprintf("not a rollback spec: %#v", obj))
}
if errs := validation.ValidateDeploymentConfigRollback(rollback); len(errs) > 0 {
return nil, kerrors.NewInvalid("DeploymentConfigRollback", "", errs)
}
// Roll back "from" the current deployment "to" a target deployment
// Find the target ("to") deployment and decode the DeploymentConfig
targetDeployment, err := s.generator.GetDeployment(ctx, rollback.Spec.From.Name)
if err != nil {
if kerrors.IsNotFound(err) {
return nil, newInvalidDeploymentError(rollback, "Deployment not found")
}
return nil, newInvalidDeploymentError(rollback, fmt.Sprintf("%v", err))
}
to, err := deployutil.DecodeDeploymentConfig(targetDeployment, s.codec)
if err != nil {
return nil, newInvalidDeploymentError(rollback,
fmt.Sprintf("couldn't decode DeploymentConfig from Deployment: %v", err))
}
// Find the current ("from") version of the target deploymentConfig
from, err := s.generator.GetDeploymentConfig(ctx, to.Name)
if err != nil {
if kerrors.IsNotFound(err) {
return nil, newInvalidDeploymentError(rollback,
fmt.Sprintf("couldn't find a current DeploymentConfig %s/%s", targetDeployment.Namespace, to.Name))
}
return nil, newInvalidDeploymentError(rollback,
fmt.Sprintf("error finding current DeploymentConfig %s/%s: %v", targetDeployment.Namespace, to.Name, err))
}
return s.generator.GenerateRollback(from, to, &rollback.Spec)
}