mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-10-21 14:49:52 +00:00
5af3fe5deb
this commits add the controller runtime and its dependency to the vendor. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
104 lines
3.7 KiB
Go
104 lines
3.7 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 internal
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"k8s.io/apimachinery/pkg/api/meta"
|
|
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
"k8s.io/client-go/rest"
|
|
"k8s.io/client-go/tools/cache"
|
|
)
|
|
|
|
// InformersMap create and caches Informers for (runtime.Object, schema.GroupVersionKind) pairs.
|
|
// It uses a standard parameter codec constructed based on the given generated Scheme.
|
|
type InformersMap struct {
|
|
// we abstract over the details of structured vs unstructured with the specificInformerMaps
|
|
|
|
structured *specificInformersMap
|
|
unstructured *specificInformersMap
|
|
|
|
// Scheme maps runtime.Objects to GroupVersionKinds
|
|
Scheme *runtime.Scheme
|
|
}
|
|
|
|
// NewInformersMap creates a new InformersMap that can create informers for
|
|
// both structured and unstructured objects.
|
|
func NewInformersMap(config *rest.Config,
|
|
scheme *runtime.Scheme,
|
|
mapper meta.RESTMapper,
|
|
resync time.Duration,
|
|
namespace string) *InformersMap {
|
|
|
|
return &InformersMap{
|
|
structured: newStructuredInformersMap(config, scheme, mapper, resync, namespace),
|
|
unstructured: newUnstructuredInformersMap(config, scheme, mapper, resync, namespace),
|
|
|
|
Scheme: scheme,
|
|
}
|
|
}
|
|
|
|
// Start calls Run on each of the informers and sets started to true. Blocks on the stop channel.
|
|
func (m *InformersMap) Start(stop <-chan struct{}) error {
|
|
go m.structured.Start(stop)
|
|
go m.unstructured.Start(stop)
|
|
<-stop
|
|
return nil
|
|
}
|
|
|
|
// WaitForCacheSync waits until all the caches have been started and synced.
|
|
func (m *InformersMap) WaitForCacheSync(stop <-chan struct{}) bool {
|
|
syncedFuncs := append([]cache.InformerSynced(nil), m.structured.HasSyncedFuncs()...)
|
|
syncedFuncs = append(syncedFuncs, m.unstructured.HasSyncedFuncs()...)
|
|
|
|
if !m.structured.waitForStarted(stop) {
|
|
return false
|
|
}
|
|
if !m.unstructured.waitForStarted(stop) {
|
|
return false
|
|
}
|
|
return cache.WaitForCacheSync(stop, syncedFuncs...)
|
|
}
|
|
|
|
// Get will create a new Informer and add it to the map of InformersMap if none exists. Returns
|
|
// the Informer from the map.
|
|
func (m *InformersMap) Get(ctx context.Context, gvk schema.GroupVersionKind, obj runtime.Object) (bool, *MapEntry, error) {
|
|
_, isUnstructured := obj.(*unstructured.Unstructured)
|
|
_, isUnstructuredList := obj.(*unstructured.UnstructuredList)
|
|
isUnstructured = isUnstructured || isUnstructuredList
|
|
|
|
if isUnstructured {
|
|
return m.unstructured.Get(ctx, gvk, obj)
|
|
}
|
|
|
|
return m.structured.Get(ctx, gvk, obj)
|
|
}
|
|
|
|
// newStructuredInformersMap creates a new InformersMap for structured objects.
|
|
func newStructuredInformersMap(config *rest.Config, scheme *runtime.Scheme, mapper meta.RESTMapper, resync time.Duration, namespace string) *specificInformersMap {
|
|
return newSpecificInformersMap(config, scheme, mapper, resync, namespace, createStructuredListWatch)
|
|
}
|
|
|
|
// newUnstructuredInformersMap creates a new InformersMap for unstructured objects.
|
|
func newUnstructuredInformersMap(config *rest.Config, scheme *runtime.Scheme, mapper meta.RESTMapper, resync time.Duration, namespace string) *specificInformersMap {
|
|
return newSpecificInformersMap(config, scheme, mapper, resync, namespace, createUnstructuredListWatch)
|
|
}
|