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proxy.go
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proxy.go
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package proxy
import (
"fmt"
kapi "k8s.io/kubernetes/pkg/api"
kerrors "k8s.io/kubernetes/pkg/api/errors"
"k8s.io/kubernetes/pkg/api/rest"
kclient "k8s.io/kubernetes/pkg/client"
"k8s.io/kubernetes/pkg/fields"
"k8s.io/kubernetes/pkg/labels"
"k8s.io/kubernetes/pkg/registry/generic"
nsregistry "k8s.io/kubernetes/pkg/registry/namespace"
"k8s.io/kubernetes/pkg/runtime"
"github.com/openshift/origin/pkg/project/api"
projectapi "github.com/openshift/origin/pkg/project/api"
projectauth "github.com/openshift/origin/pkg/project/auth"
projectregistry "github.com/openshift/origin/pkg/project/registry/project"
)
type REST struct {
// client can modify Kubernetes namespaces
client kclient.NamespaceInterface
// lister can enumerate project lists that enforce policy
lister projectauth.Lister
// Allows extended behavior during creation, required
createStrategy rest.RESTCreateStrategy
// Allows extended behavior during updates, required
updateStrategy rest.RESTUpdateStrategy
}
// NewREST returns a RESTStorage object that will work against Project resources
func NewREST(client kclient.NamespaceInterface, lister projectauth.Lister) *REST {
return &REST{
client: client,
lister: lister,
createStrategy: projectregistry.Strategy,
updateStrategy: projectregistry.Strategy,
}
}
// New returns a new Project
func (s *REST) New() runtime.Object {
return &api.Project{}
}
// NewList returns a new ProjectList
func (*REST) NewList() runtime.Object {
return &api.ProjectList{}
}
// convertNamespace transforms a Namespace into a Project
func convertNamespace(namespace *kapi.Namespace) *api.Project {
return &api.Project{
ObjectMeta: namespace.ObjectMeta,
Spec: api.ProjectSpec{
Finalizers: namespace.Spec.Finalizers,
},
Status: api.ProjectStatus{
Phase: namespace.Status.Phase,
},
}
}
// convertProject transforms a Project into a Namespace
func convertProject(project *api.Project) *kapi.Namespace {
namespace := &kapi.Namespace{
ObjectMeta: project.ObjectMeta,
Spec: kapi.NamespaceSpec{
Finalizers: project.Spec.Finalizers,
},
Status: kapi.NamespaceStatus{
Phase: project.Status.Phase,
},
}
if namespace.Annotations == nil {
namespace.Annotations = map[string]string{}
}
namespace.Annotations[projectapi.ProjectDisplayName] = project.Annotations[projectapi.ProjectDisplayName]
return namespace
}
// convertNamespaceList transforms a NamespaceList into a ProjectList
func convertNamespaceList(namespaceList *kapi.NamespaceList) *api.ProjectList {
projects := &api.ProjectList{}
for _, n := range namespaceList.Items {
projects.Items = append(projects.Items, *convertNamespace(&n))
}
return projects
}
// List retrieves a list of Projects that match label.
func (s *REST) List(ctx kapi.Context, label labels.Selector, field fields.Selector) (runtime.Object, error) {
user, ok := kapi.UserFrom(ctx)
if !ok {
return nil, kerrors.NewForbidden("Project", "", fmt.Errorf("unable to list projects without a user on the context"))
}
namespaceList, err := s.lister.List(user)
if err != nil {
return nil, err
}
m := nsregistry.MatchNamespace(label, field)
list, err := generic.FilterList(namespaceList, m, nil)
if err != nil {
return nil, err
}
return convertNamespaceList(list.(*kapi.NamespaceList)), nil
}
// Get retrieves a Project by name
func (s *REST) Get(ctx kapi.Context, name string) (runtime.Object, error) {
namespace, err := s.client.Get(name)
if err != nil {
return nil, err
}
return convertNamespace(namespace), nil
}
// Create registers the given Project.
func (s *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
project, ok := obj.(*api.Project)
if !ok {
return nil, fmt.Errorf("not a project: %#v", obj)
}
kapi.FillObjectMetaSystemFields(ctx, &project.ObjectMeta)
s.createStrategy.PrepareForCreate(obj)
if errs := s.createStrategy.Validate(ctx, obj); len(errs) > 0 {
return nil, kerrors.NewInvalid("project", project.Name, errs)
}
namespace, err := s.client.Create(convertProject(project))
if err != nil {
return nil, err
}
return convertNamespace(namespace), nil
}
func (s *REST) Update(ctx kapi.Context, obj runtime.Object) (runtime.Object, bool, error) {
project, ok := obj.(*api.Project)
if !ok {
return nil, false, fmt.Errorf("not a project: %#v", obj)
}
oldObj, err := s.Get(ctx, project.Name)
if err != nil {
return nil, false, err
}
s.updateStrategy.PrepareForUpdate(obj, oldObj)
if errs := s.updateStrategy.ValidateUpdate(ctx, obj, oldObj); len(errs) > 0 {
return nil, false, kerrors.NewInvalid("project", project.Name, errs)
}
namespace, err := s.client.Update(convertProject(project))
if err != nil {
return nil, false, err
}
return convertNamespace(namespace), false, nil
}
// Delete deletes a Project specified by its name
func (s *REST) Delete(ctx kapi.Context, name string) (runtime.Object, error) {
return &kapi.Status{Status: kapi.StatusSuccess}, s.client.Delete(name)
}