etcd备份 还原

#备份
ETCDCTL_API=3 etcdctl --endpoints="https://127.0.0.1:2379" --cacert=/opt/etcddir/ca.crt --
cert=/opt/etcddir/etcd-client.crt --key=/opt/etcddir/etcd-client.key snapshot save 
/srv/data/etcd-snapshot.db

#还原
ETCDCTL_API=3 etcdctl --endpoints="https://127.0.0.1:2379" --cacert=/opt/etcddir/ca.crt --
cert=/opt/etcddir/etcd-client.crt --key=/opt/etcddir/etcd-client.key snapshot 
restore /var/lib/backup/etcd-snapshot-previous.db