mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-10 08:20:23 +00:00
5af3fe5deb
this commits add the controller runtime and its dependency to the vendor. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
127 lines
3.8 KiB
Go
127 lines
3.8 KiB
Go
/*
|
|
Copyright 2018 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 admission
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/http"
|
|
|
|
"gomodules.xyz/jsonpatch/v2"
|
|
admissionv1beta1 "k8s.io/api/admission/v1beta1"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"sigs.k8s.io/controller-runtime/pkg/runtime/inject"
|
|
)
|
|
|
|
type multiMutating []Handler
|
|
|
|
func (hs multiMutating) Handle(ctx context.Context, req Request) Response {
|
|
patches := []jsonpatch.JsonPatchOperation{}
|
|
for _, handler := range hs {
|
|
resp := handler.Handle(ctx, req)
|
|
if !resp.Allowed {
|
|
return resp
|
|
}
|
|
if resp.PatchType != nil && *resp.PatchType != admissionv1beta1.PatchTypeJSONPatch {
|
|
return Errored(http.StatusInternalServerError,
|
|
fmt.Errorf("unexpected patch type returned by the handler: %v, only allow: %v",
|
|
resp.PatchType, admissionv1beta1.PatchTypeJSONPatch))
|
|
}
|
|
patches = append(patches, resp.Patches...)
|
|
}
|
|
var err error
|
|
marshaledPatch, err := json.Marshal(patches)
|
|
if err != nil {
|
|
return Errored(http.StatusBadRequest, fmt.Errorf("error when marshaling the patch: %w", err))
|
|
}
|
|
return Response{
|
|
AdmissionResponse: admissionv1beta1.AdmissionResponse{
|
|
Allowed: true,
|
|
Result: &metav1.Status{
|
|
Code: http.StatusOK,
|
|
},
|
|
Patch: marshaledPatch,
|
|
PatchType: func() *admissionv1beta1.PatchType { pt := admissionv1beta1.PatchTypeJSONPatch; return &pt }(),
|
|
},
|
|
}
|
|
}
|
|
|
|
// InjectFunc injects the field setter into the handlers.
|
|
func (hs multiMutating) InjectFunc(f inject.Func) error {
|
|
// inject directly into the handlers. It would be more correct
|
|
// to do this in a sync.Once in Handle (since we don't have some
|
|
// other start/finalize-type method), but it's more efficient to
|
|
// do it here, presumably.
|
|
for _, handler := range hs {
|
|
if err := f(handler); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// MultiMutatingHandler combines multiple mutating webhook handlers into a single
|
|
// mutating webhook handler. Handlers are called in sequential order, and the first
|
|
// `allowed: false` response may short-circuit the rest. Users must take care to
|
|
// ensure patches are disjoint.
|
|
func MultiMutatingHandler(handlers ...Handler) Handler {
|
|
return multiMutating(handlers)
|
|
}
|
|
|
|
type multiValidating []Handler
|
|
|
|
func (hs multiValidating) Handle(ctx context.Context, req Request) Response {
|
|
for _, handler := range hs {
|
|
resp := handler.Handle(ctx, req)
|
|
if !resp.Allowed {
|
|
return resp
|
|
}
|
|
}
|
|
return Response{
|
|
AdmissionResponse: admissionv1beta1.AdmissionResponse{
|
|
Allowed: true,
|
|
Result: &metav1.Status{
|
|
Code: http.StatusOK,
|
|
},
|
|
},
|
|
}
|
|
}
|
|
|
|
// MultiValidatingHandler combines multiple validating webhook handlers into a single
|
|
// validating webhook handler. Handlers are called in sequential order, and the first
|
|
// `allowed: false` response may short-circuit the rest.
|
|
func MultiValidatingHandler(handlers ...Handler) Handler {
|
|
return multiValidating(handlers)
|
|
}
|
|
|
|
// InjectFunc injects the field setter into the handlers.
|
|
func (hs multiValidating) InjectFunc(f inject.Func) error {
|
|
// inject directly into the handlers. It would be more correct
|
|
// to do this in a sync.Once in Handle (since we don't have some
|
|
// other start/finalize-type method), but it's more efficient to
|
|
// do it here, presumably.
|
|
for _, handler := range hs {
|
|
if err := f(handler); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|