mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-25 06:20:24 +00:00
74 lines
2.5 KiB
Go
74 lines
2.5 KiB
Go
|
/*
|
||
|
|
Copyright 2017 The Kubernetes Authors.
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package discovery
|
||
|
|
|
||
|
|
import (
|
||
|
|
"net/http"
|
||
|
|
|
||
|
|
"github.com/emicklei/go-restful/v3"
|
||
|
|
|
||
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||
|
|
"k8s.io/apimachinery/pkg/runtime"
|
||
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
||
|
|
"k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
|
||
|
|
"k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
|
||
|
|
)
|
||
|
|
|
||
|
|
// APIGroupHandler creates a webservice serving the supported versions, preferred version, and name
|
||
|
|
// of a group. E.g., such a web service will be registered at /apis/extensions.
|
||
|
|
type APIGroupHandler struct {
|
||
|
|
serializer runtime.NegotiatedSerializer
|
||
|
|
group metav1.APIGroup
|
||
|
|
}
|
||
|
|
|
||
|
|
func NewAPIGroupHandler(serializer runtime.NegotiatedSerializer, group metav1.APIGroup) *APIGroupHandler {
|
||
|
|
if keepUnversioned(group.Name) {
|
||
|
|
// Because in release 1.1, /apis/extensions returns response with empty
|
||
|
|
// APIVersion, we use stripVersionNegotiatedSerializer to keep the
|
||
|
|
// response backwards compatible.
|
||
|
|
serializer = stripVersionNegotiatedSerializer{serializer}
|
||
|
|
}
|
||
|
|
|
||
|
|
return &APIGroupHandler{
|
||
|
|
serializer: serializer,
|
||
|
|
group: group,
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *APIGroupHandler) WebService() *restful.WebService {
|
||
|
|
mediaTypes, _ := negotiation.MediaTypesForSerializer(s.serializer)
|
||
|
|
ws := new(restful.WebService)
|
||
|
|
ws.Path(APIGroupPrefix + "/" + s.group.Name)
|
||
|
|
ws.Doc("get information of a group")
|
||
|
|
ws.Route(ws.GET("/").To(s.handle).
|
||
|
|
Doc("get information of a group").
|
||
|
|
Operation("getAPIGroup").
|
||
|
|
Produces(mediaTypes...).
|
||
|
|
Consumes(mediaTypes...).
|
||
|
|
Writes(metav1.APIGroup{}))
|
||
|
|
return ws
|
||
|
|
}
|
||
|
|
|
||
|
|
// handle returns a handler which will return the api.GroupAndVersion of the group.
|
||
|
|
func (s *APIGroupHandler) handle(req *restful.Request, resp *restful.Response) {
|
||
|
|
s.ServeHTTP(resp.ResponseWriter, req.Request)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s *APIGroupHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
|
||
|
|
responsewriters.WriteObjectNegotiated(s.serializer, negotiation.DefaultEndpointRestrictions, schema.GroupVersion{}, w, req, http.StatusOK, &s.group, false)
|
||
|
|
}
|