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| package main
import (
"context"
"fmt"
meatv1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/leaderelection"
"k8s.io/client-go/tools/leaderelection/resourcelock"
"kube-base3/lib/kubeConfig"
"time"
)
func main() {
id := "app1"
client := kubeConfig.InitClient()
lock := &resourcelock.LeaseLock{
LeaseMeta: meatv1.ObjectMeta{
Name: "myapp-lock",
Namespace: "default",
},
Client: client.CoordinationV1(),
LockConfig: resourcelock.ResourceLockConfig{
Identity: id,
},
}
leaderelection.RunOrDie(context.Background(), leaderelection.LeaderElectionConfig{
Lock: lock,
ReleaseOnCancel: true,
LeaseDuration: 30 * time.Second,
RenewDeadline: 20 * time.Second,
RetryPeriod: 5 * time.Second,
Callbacks: leaderelection.LeaderCallbacks{
OnStartedLeading: func(ctx context.Context) {
fmt.Println("选主")
},
OnNewLeader: func(identity string) {
if identity == id {
return
}
fmt.Println("领导不是自己,是", identity)
},
OnStoppedLeading: func() {
},
},
})
}
|
