demo/etcd/lock/test.go

package main

import (
	"context"
	clientv3 "go.etcd.io/etcd/client/v3"
	"go.etcd.io/etcd/client/v3/concurrency"
	"time"
)

func main() {
	cli, err := clientv3.New(clientv3.Config{
		Endpoints:   []string{"106.54.33.152:2379"},
		DialTimeout: 5 * time.Second,
	})
	if err != nil {
		panic(err)
	}
	defer cli.Close()

	grant, _ := cli.Grant(context.Background(), 15)

	session, err := concurrency.NewSession(cli, concurrency.WithLease(grant.ID))
	if err != nil {
		panic(err)
	}
	m := concurrency.NewLocker(session, "lock/test")
	m.Lock()
	defer m.Unlock()
	time.Sleep(20 * time.Second)

}