Require at least one version in ThirdPartyResource objects

pkg/apis/extensions/types.go

@@ -124,7 +124,6 @@ type ThirdPartyResource struct {
 	Description string `json:"description,omitempty"`
 
 	// Versions are versions for this third party object
-	// +optional
 	Versions []APIVersion `json:"versions,omitempty"`
 }
 
@@ -143,7 +142,6 @@ type ThirdPartyResourceList struct {
 // TODO: we should consider merge this struct with GroupVersion in unversioned.go
 type APIVersion struct {
 	// Name of this version (e.g. 'v1').
-	// +optional
 	Name string `json:"name,omitempty"`
 }
 

pkg/apis/extensions/validation/validation.go

@@ -68,6 +68,9 @@ func ValidateThirdPartyResource(obj *extensions.ThirdPartyResource) field.ErrorL
 	allErrs = append(allErrs, apivalidation.ValidateObjectMeta(&obj.ObjectMeta, false, ValidateThirdPartyResourceName, field.NewPath("metadata"))...)
 
 	versions := sets.String{}
+	if len(obj.Versions) == 0 {
+		allErrs = append(allErrs, field.Required(field.NewPath("versions"), "must specify at least one version"))
+	}
 	for ix := range obj.Versions {
 		version := &obj.Versions[ix]
 		if len(version.Name) == 0 {

pkg/generated/openapi/zz_generated.openapi.go

@@ -3245,6 +3245,7 @@ var OpenAPIDefinitions *common.OpenAPIDefinitions = &common.OpenAPIDefinitions{
 						},
 					},
 				},
+				Required: []string{"name"},
 			},
 		},
 		Dependencies: []string{},
@@ -4899,6 +4900,7 @@ var OpenAPIDefinitions *common.OpenAPIDefinitions = &common.OpenAPIDefinitions{
 						},
 					},
 				},
+				Required: []string{"versions"},
 			},
 		},
 		Dependencies: []string{

pkg/master/thirdparty/thirdparty.go

@@ -246,6 +246,9 @@ func (m *ThirdPartyResourceServer) InstallThirdPartyResource(rsrc *extensions.Th
 	if err != nil {
 		return err
 	}
+	if len(rsrc.Versions) == 0 {
+		return fmt.Errorf("ThirdPartyResource %s has no defined versions", rsrc.Name)
+	}
 	plural, _ := meta.KindToResource(unversioned.GroupVersionKind{
 		Group:   group,
 		Version: rsrc.Versions[0].Name,