/
endpointresource.go
159 lines (146 loc) · 5.05 KB
/
endpointresource.go
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package endpointresource
import (
v1 "k8s.io/api/core/v1"
discovery "k8s.io/api/discovery/v1"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/klog/v2"
"github.com/kubeedge/kubeedge/cloud/pkg/controllermanager/nodegroup"
"github.com/kubeedge/kubeedge/cloud/pkg/dynamiccontroller/application"
"github.com/kubeedge/kubeedge/cloud/pkg/dynamiccontroller/filter"
)
// FilterImpl implement enpointslice filter
type FilterImpl struct {
NodesInformer *application.CommonResourceEventHandler
ServicesInformer *application.CommonResourceEventHandler
}
const (
resourceEpSliceName = "EndpointSlice"
resourceEpName = "Endpoints"
filterName = "EndpointResource"
)
func newEndpointsliceFilter() *FilterImpl {
return &FilterImpl{}
}
func Register() {
filter.Register(newEndpointsliceFilter())
}
func (f *FilterImpl) Name() string {
return filterName
}
func (f *FilterImpl) NeedFilter(content interface{}) bool {
if objList, ok := content.(*unstructured.UnstructuredList); ok {
if len(objList.Items) != 0 && (objList.Items[0].GetObjectKind().GroupVersionKind().Kind == resourceEpSliceName ||
objList.Items[0].GetObjectKind().GroupVersionKind().Kind == resourceEpName) {
return true
}
return false
}
if obj, ok := content.(*unstructured.Unstructured); ok {
if obj.GetObjectKind().GroupVersionKind().Kind == resourceEpSliceName ||
obj.GetObjectKind().GroupVersionKind().Kind == resourceEpName {
return true
}
}
return false
}
func filterEndpointSlice(targetNode string, obj runtime.Object) {
unstruct, ok := obj.(*unstructured.Unstructured)
if !ok {
return
}
var epSlice discovery.EndpointSlice
err := runtime.DefaultUnstructuredConverter.FromUnstructured(unstruct.UnstructuredContent(), &epSlice)
if err != nil {
klog.Errorf("convert unstructure content %v err: %v", unstruct.GetName(), err)
return
}
var svcTopology string
if svcName, ok := epSlice.Labels[discovery.LabelServiceName]; ok {
svcRaw, err := filter.GetDynamicResourceInformer(v1.SchemeGroupVersion.WithResource("services")).Lister().ByNamespace(epSlice.Namespace).Get(svcName)
if err != nil {
klog.Errorf("filter endpoint slice for svc %s error: %v", svcName, err)
return
}
svcObj, err := meta.Accessor(svcRaw)
if err != nil {
klog.Errorf("get service %v accessor error: %v", svcName, err)
return
}
svcTopology = svcObj.GetAnnotations()[nodegroup.ServiceTopologyAnnotation]
}
if svcTopology != nodegroup.ServiceTopologyRangeNodegroup {
klog.V(4).Infof("skip filter for endpointSlice %v", unstruct.GetName())
return
}
var epsTmp []discovery.Endpoint
for _, ep := range epSlice.Endpoints {
if filter.IsBelongToSameGroup(targetNode, *ep.NodeName) {
epsTmp = append(epsTmp, ep)
}
}
epSlice.Endpoints = epsTmp
unstrRaw, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&epSlice)
if err != nil {
klog.Errorf("endpointslice %v convert to unstructure error: %v", epSlice.Name, err)
return
}
unstruct.SetUnstructuredContent(unstrRaw)
}
func filterEndpointsAddress(targetNode string, address []v1.EndpointAddress) []v1.EndpointAddress {
var tmpAddress []v1.EndpointAddress
for _, addr := range address {
if addr.NodeName == nil {
continue
}
if filter.IsBelongToSameGroup(targetNode, *addr.NodeName) {
tmpAddress = append(tmpAddress, addr)
}
}
return tmpAddress
}
func filterEndpoints(targetNode string, obj runtime.Object) {
unstruct, ok := obj.(*unstructured.Unstructured)
if !ok {
return
}
var ep v1.Endpoints
err := runtime.DefaultUnstructuredConverter.FromUnstructured(unstruct.UnstructuredContent(), &ep)
if err != nil {
klog.Errorf("convert unstructure content %v err: %v", unstruct.GetName(), err)
return
}
svcName := ep.GetName()
svcRaw, err := filter.GetDynamicResourceInformer(v1.SchemeGroupVersion.WithResource("services")).Lister().ByNamespace(ep.Namespace).Get(svcName)
if err != nil {
klog.Errorf("filter endpoint slice for svc %s error: %v", svcName, err)
return
}
svcObj, err := meta.Accessor(svcRaw)
if err != nil {
klog.Errorf("get service %v accessor error: %v", svcName, err)
return
}
if svcObj.GetAnnotations()[nodegroup.ServiceTopologyAnnotation] != nodegroup.ServiceTopologyRangeNodegroup {
klog.V(4).Infof("skip filter for endpointSlice %v", unstruct.GetName())
return
}
for i := range ep.Subsets {
ep.Subsets[i].Addresses = filterEndpointsAddress(targetNode, ep.Subsets[i].Addresses)
ep.Subsets[i].NotReadyAddresses = filterEndpointsAddress(targetNode, ep.Subsets[i].NotReadyAddresses)
}
unstrRaw, err := runtime.DefaultUnstructuredConverter.ToUnstructured(&ep)
if err != nil {
klog.Errorf("endpointslice %v convert to unstructure error: %v", ep.Name, err)
return
}
unstruct.SetUnstructuredContent(unstrRaw)
}
func (f *FilterImpl) FilterResource(targetNode string, obj runtime.Object) {
if obj.GetObjectKind().GroupVersionKind().Kind == resourceEpSliceName {
filterEndpointSlice(targetNode, obj)
} else if obj.GetObjectKind().GroupVersionKind().Kind == resourceEpName {
filterEndpoints(targetNode, obj)
}
}