https://www.cncfstack.com/p/etcd/docs/etcdctl/etcdctl-txn/
etcdctl txn | etcd 资源库
help $ etcdctl txn --help NAME: txn - Txn processes all the requests in one transaction USAGE: etcdctl txn [options] [flags] OPTIONS: -h, --help[=false] help...
etcdctltxn