Merge pull request #22285 from AdoHe/fix_service_export

api/swagger-spec/v1.json

@@ -13289,6 +13289,22 @@
         "allowMultiple": false
        },
        {
+        "type": "boolean",
+        "paramType": "query",
+        "name": "export",
+        "description": "Should this value be exported.  Export strips fields that a user can not specify.",
+        "required": false,
+        "allowMultiple": false
+       },
+       {
+        "type": "boolean",
+        "paramType": "query",
+        "name": "exact",
+        "description": "Should the export be exact.  Exact export maintains cluster-specific fields like 'Namespace'",
+        "required": false,
+        "allowMultiple": false
+       },
+       {
         "type": "string",
         "paramType": "path",
         "name": "namespace",

docs/api-reference/v1/operations.html

@@ -15104,6 +15104,22 @@ span.icon > [class^="icon-"], span.icon > [class*=" icon-"] { cursor: default; }
 <td class="tableblock halign-left valign-top"></td>
 </tr>
 <tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock">QueryParameter</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">export</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">Should this value be exported.  Export strips fields that a user can not specify.</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">false</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">boolean</p></td>
+<td class="tableblock halign-left valign-top"></td>
+</tr>
+<tr>
+<td class="tableblock halign-left valign-top"><p class="tableblock">QueryParameter</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">exact</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">Should the export be exact.  Exact export maintains cluster-specific fields like <em>Namespace</em></p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">false</p></td>
+<td class="tableblock halign-left valign-top"><p class="tableblock">boolean</p></td>
+<td class="tableblock halign-left valign-top"></td>
+</tr>
+<tr>
 <td class="tableblock halign-left valign-top"><p class="tableblock">PathParameter</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">namespace</p></td>
 <td class="tableblock halign-left valign-top"><p class="tableblock">object name and auth scope, such as for teams and projects</p></td>
@@ -29901,7 +29917,7 @@ span.icon > [class^="icon-"], span.icon > [class*=" icon-"] { cursor: default; }
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2016-03-02 21:40:42 UTC
+Last updated 2016-03-05 16:17:11 UTC
 </div>
 </div>
 </body>

pkg/registry/registrytest/service.go

@@ -20,6 +20,7 @@ import (
 	"sync"
 
 	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/watch"
 )
 
@@ -112,3 +113,10 @@ func (r *ServiceRegistry) WatchServices(ctx api.Context, options *api.ListOption
 
 	return nil, r.Err
 }
+
+func (r *ServiceRegistry) ExportService(ctx api.Context, name string, options unversioned.ExportOptions) (*api.Service, error) {
+	r.mu.Lock()
+	defer r.mu.Lock()
+
+	return r.Service, r.Err
+}

pkg/registry/service/etcd/etcd.go

@@ -59,6 +59,7 @@ func NewREST(opts generic.RESTOptions) (*REST, *StatusREST) {
 
 		CreateStrategy: service.Strategy,
 		UpdateStrategy: service.Strategy,
+		ExportStrategy: service.Strategy,
 
 		Storage: storageInterface,
 	}

pkg/registry/service/registry.go

@@ -17,8 +17,11 @@ limitations under the License.
 package service
 
 import (
+	"fmt"
+
 	"k8s.io/kubernetes/pkg/api"
 	"k8s.io/kubernetes/pkg/api/rest"
+	"k8s.io/kubernetes/pkg/api/unversioned"
 	"k8s.io/kubernetes/pkg/watch"
 )
 
@@ -30,6 +33,7 @@ type Registry interface {
 	DeleteService(ctx api.Context, name string) error
 	UpdateService(ctx api.Context, svc *api.Service) (*api.Service, error)
 	WatchServices(ctx api.Context, options *api.ListOptions) (watch.Interface, error)
+	ExportService(ctx api.Context, name string, options unversioned.ExportOptions) (*api.Service, error)
 }
 
 // storage puts strong typing around storage calls
@@ -84,6 +88,20 @@ func (s *storage) WatchServices(ctx api.Context, options *api.ListOptions) (watc
 	return s.Watch(ctx, options)
 }
 
+// If StandardStorage implements rest.Exporter, returns exported service.
+// Otherwise export is not supported.
+func (s *storage) ExportService(ctx api.Context, name string, options unversioned.ExportOptions) (*api.Service, error) {
+	exporter, isExporter := s.StandardStorage.(rest.Exporter)
+	if !isExporter {
+		return nil, fmt.Errorf("export is not supported")
+	}
+	obj, err := exporter.Export(ctx, name, options)
+	if err != nil {
+		return nil, err
+	}
+	return obj.(*api.Service), nil
+}
+
 // TODO: Move to a general location (as other components may need allocation in future; it's not service specific)
 // RangeRegistry is a registry that can retrieve or persist a RangeAllocation object.
 type RangeRegistry interface {

pkg/registry/service/rest.go

@@ -198,6 +198,12 @@ func (rs *REST) Watch(ctx api.Context, options *api.ListOptions) (watch.Interfac
 	return rs.registry.WatchServices(ctx, options)
 }
 
+// Export returns Service stripped of cluster-specific information.
+// It implements rest.Exporter.
+func (rs *REST) Export(ctx api.Context, name string, opts unversioned.ExportOptions) (runtime.Object, error) {
+	return rs.registry.ExportService(ctx, name, opts)
+}
+
 func (*REST) New() runtime.Object {
 	return &api.Service{}
 }

pkg/registry/service/strategy.go

@@ -90,7 +90,7 @@ func (svcStrategy) Export(obj runtime.Object, exact bool) error {
 		return nil
 	}
 	if t.Spec.ClusterIP != api.ClusterIPNone {
-		t.Spec.ClusterIP = ""
+		t.Spec.ClusterIP = "<unknown>"
 	}
 	if t.Spec.Type == api.ServiceTypeNodePort {
 		for i := range t.Spec.Ports {

pkg/registry/service/strategy_test.go

@@ -81,6 +81,9 @@ func TestExportService(t *testing.T) {
 					Name:      "foo",
 					Namespace: "bar",
 				},
+				Spec: api.ServiceSpec{
+					ClusterIP: "<unknown>",
+				},
 			},
 		},
 		{