ETCD database backup and restore

1. Backup etcd1.1 manually back up data

etcdctl backup --data-dir /var/lib/etcd/default.etcd --backup-dir 备份目录

1.2 Script backup Data

Use the ETCD command etcdctl for etc Backup, the script is as follows:

#!/bin/bashdate_time=`date +%Y%m%d`etcdctl backup --data-dir /var/lib/etcd/default.etcd --backup-dir /root/etcd71-${date_time}.etcdtar cvzf etcd71-${date_time}.tar.gz etcd71-${date_time}.etcd

1.3 Delete 7 days ago Historical backup

find /root/*.etcd -ctime +7 -exec rm -r {} \;find /root/*.gz -ctime +7 -exec rm -r {} \;

2. Restore etcd2.1 stand-alone operation

etcd --data-dir=/var/lib/etcd/default.etcd --force-new-cluster &

2.2 View ID

etcdctl member list1c4358be138c6d94: name=default peerURLs=https://192.168.61.71:2380 clientURLs=http://localhost:2379 isLeader=true

2.3 Data Synchronization

curl http://127.0.0.1:2379/v2/members/1c4358be138c6d94 -XPUT -H "Content-Type:application/json" -d ‘{"peerURLs":["http://127.0.0.1:2379"]}‘

2.4 End stand-alone operation

pkill -9 etcd

2.5 Restarting the service

systemctl restart etcdsystemctl status etcd

ETCD database backup and restore