/
crs.go
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/
crs.go
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// Copyright 2019 HAProxy Technologies LLC
//
// 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 k8s
import (
"k8s.io/client-go/tools/cache"
v1 "github.com/haproxytech/kubernetes-ingress/crs/api/ingress/v1"
informers "github.com/haproxytech/kubernetes-ingress/crs/generated/informers/externalversions"
"github.com/haproxytech/kubernetes-ingress/pkg/store"
)
type GlobalCR struct{}
type DefaultsCR struct{}
type BackendCR struct{}
func NewGlobalCR() GlobalCR {
return GlobalCR{}
}
func NewDefaultsCR() DefaultsCR {
return DefaultsCR{}
}
func NewBackendCR() BackendCR {
return BackendCR{}
}
func (c GlobalCR) GetKind() string {
return "Global"
}
func (c GlobalCR) GetInformer(eventChan chan SyncDataEvent, factory informers.SharedInformerFactory) cache.SharedIndexInformer { //nolint:ireturn
informer := factory.Ingress().V1().Globals().Informer()
sendToChannel := func(eventChan chan SyncDataEvent, object interface{}, status store.Status) {
data, ok := object.(*v1.Global)
if !ok {
logger.Warning(CRSGroupVersionV1 + ": type mismatch with Global kind")
return
}
logger.Debugf("%s %s: %s", data.GetNamespace(), status, data.GetName())
if status == store.DELETED {
eventChan <- SyncDataEvent{SyncType: SyncType(c.GetKind()), Namespace: data.GetNamespace(), Name: data.GetName(), Data: nil}
return
}
eventChan <- SyncDataEvent{SyncType: SyncType(c.GetKind()), Namespace: data.GetNamespace(), Name: data.GetName(), Data: data}
}
errW := informer.SetWatchErrorHandler(func(r *cache.Reflector, err error) {
go logger.Debug("Global CR informer error: %s", err)
})
logger.Error(errW)
_, err := informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
sendToChannel(eventChan, obj, store.ADDED)
},
UpdateFunc: func(oldObj, newObj interface{}) {
sendToChannel(eventChan, newObj, store.MODIFIED)
},
DeleteFunc: func(obj interface{}) {
sendToChannel(eventChan, obj, store.DELETED)
},
})
logger.Error(err)
return informer
}
func (c DefaultsCR) GetKind() string {
return "Defaults"
}
func (c DefaultsCR) GetInformer(eventChan chan SyncDataEvent, factory informers.SharedInformerFactory) cache.SharedIndexInformer { //nolint:ireturn
informer := factory.Ingress().V1().Defaults().Informer()
sendToChannel := func(eventChan chan SyncDataEvent, object interface{}, status store.Status) {
data, ok := object.(*v1.Defaults)
if !ok {
logger.Warning(CRSGroupVersionV1 + ": type mismatch with Defaults kind")
return
}
logger.Debugf("%s %s: %s", data.GetNamespace(), status, data.GetName())
if status == store.DELETED {
eventChan <- SyncDataEvent{SyncType: SyncType(c.GetKind()), Namespace: data.GetNamespace(), Name: data.GetName(), Data: nil}
return
}
eventChan <- SyncDataEvent{SyncType: SyncType(c.GetKind()), Namespace: data.GetNamespace(), Name: data.GetName(), Data: data}
}
errW := informer.SetWatchErrorHandler(func(r *cache.Reflector, err error) {
go logger.Debug("Defaults CR informer error: %s", err)
})
logger.Error(errW)
_, err := informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
sendToChannel(eventChan, obj, store.ADDED)
},
UpdateFunc: func(oldObj, newObj interface{}) {
sendToChannel(eventChan, newObj, store.MODIFIED)
},
DeleteFunc: func(obj interface{}) {
sendToChannel(eventChan, obj, store.DELETED)
},
})
logger.Error(err)
return informer
}
func (c BackendCR) GetKind() string {
return "Backend"
}
func (c BackendCR) GetInformer(eventChan chan SyncDataEvent, factory informers.SharedInformerFactory) cache.SharedIndexInformer { //nolint:ireturn
informer := factory.Ingress().V1().Backends().Informer()
sendToChannel := func(eventChan chan SyncDataEvent, object interface{}, status store.Status) {
data, ok := object.(*v1.Backend)
if !ok {
logger.Warning(CRSGroupVersionV1 + ": type mismatch with Backend kind")
return
}
logger.Debugf("%s %s: %s", data.GetNamespace(), status, data.GetName())
if status == store.DELETED {
eventChan <- SyncDataEvent{SyncType: SyncType(c.GetKind()), Namespace: data.GetNamespace(), Name: data.GetName(), Data: nil}
return
}
eventChan <- SyncDataEvent{SyncType: SyncType(c.GetKind()), Namespace: data.GetNamespace(), Name: data.GetName(), Data: data}
}
errW := informer.SetWatchErrorHandler(func(r *cache.Reflector, err error) {
go logger.Debug("Backend CR informer error: %s", err)
})
logger.Error(errW)
_, err := informer.AddEventHandler(cache.ResourceEventHandlerFuncs{
AddFunc: func(obj interface{}) {
sendToChannel(eventChan, obj, store.ADDED)
},
UpdateFunc: func(oldObj, newObj interface{}) {
sendToChannel(eventChan, newObj, store.MODIFIED)
},
DeleteFunc: func(obj interface{}) {
sendToChannel(eventChan, obj, store.DELETED)
},
})
logger.Error(err)
return informer
}