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util.go
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util.go
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package filter
import (
"strings"
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/client-go/informers"
"k8s.io/klog/v2"
commoninformers "github.com/kubeedge/kubeedge/cloud/pkg/common/informers"
"github.com/kubeedge/kubeedge/cloud/pkg/controllermanager/nodegroup"
)
func IsBelongToSameGroup(targetNodeName string, epNodeName string) bool {
if strings.Compare(targetNodeName, epNodeName) == 0 {
return true
}
targetNode, err := GetDynamicResourceInformer(v1.SchemeGroupVersion.WithResource("nodes")).Lister().Get(targetNodeName)
if err != nil {
klog.Errorf("node informer get node %s error: %v", targetNodeName, err)
return false
}
targetAccessor, err := meta.Accessor(targetNode)
if err != nil {
klog.Error(err)
return false
}
epNode, err := GetDynamicResourceInformer(v1.SchemeGroupVersion.WithResource("nodes")).Lister().Get(epNodeName)
if err != nil {
klog.Errorf("node informer get endpoint slice belonging node %s error: %v", epNodeName, err)
return false
}
epNodeAccessor, err := meta.Accessor(epNode)
if err != nil {
klog.Error(err)
return false
}
return targetAccessor.GetLabels()[nodegroup.LabelBelongingTo] == epNodeAccessor.GetLabels()[nodegroup.LabelBelongingTo]
}
func GetDynamicResourceInformer(gvr schema.GroupVersionResource) informers.GenericInformer {
return commoninformers.GetInformersManager().GetDynamicInformerFactory().ForResource(gvr)
}