本文介绍如何使用restic工具远程备份到存储机

安装

下载二进制 https://github.com/restic/restic/releases 放到/usr/local/bin/

配置&使用

配置远端ssh

Host $your-machine-name
        Hostname $your-ip
        Port $port
        User $user
        ServerAliveInterval 60
        ServerAliveCountMax 240
        IdentityFile ~/.ssh/your.key

命令行使用

sh
# 初始化，需要密码，记得保存好
restic -r sftp:$your-machine-name:/data/backups/ init
# 备份
restic -r sftp:$your-machine-name:/data/backups/ --verbose backup --one-file-system /root
restic -r sftp:$your-machine-name:/data/backups/ --verbose backup --one-file-system /opt --exclude="containerd"
# 检查快照
restic -r sftp:$your-machine-name:/data/backups/ snapshots
# 删除旧备份
restic -r sftp:$your-machine-name:/data/backups/ forget --keep-within-daily 7d --keep-within-weekly 1m --keep-within-monthly 1y --keep-within-yearly 75y
# 回收空间
restic -r sftp:$your-machine-name:/data/backups/ prune

自动化

写成脚本：restic_backup.sh

shell
#/usr/bin/env bash
export RESTIC_PASSWORD=''
/usr/local/bin/restic -r sftp:$your-machine-name:/data/backups/ --verbose backup --one-file-system /root --tag=root >> /opt/restic/root-backup.log 2>&1
/usr/local/bin/restic -r sftp:$your-machine-name:/data/backups/ --verbose backup --one-file-system /opt --exclude="containerd" --tag=opt >> /opt/restic/opt-backup.log 2>&1
/usr/local/bin/restic -r sftp:$your-machine-name:/data/backups/ forget --keep-within-daily 7d --keep-within-weekly 1m --keep-within-monthly 1y --keep-within-yearly 75y >> /opt/restic/forget.log 2>&1

restic_prune.sh:

shell
#/usr/bin/env bash
export RESTIC_PASSWORD=''
/usr/local/bin/restic -r sftp:$your-machine-name:/data/backups/ prune >> /opt/restic/prune.log 2>&1

crontab

0 3 * * * /opt/restic/restic_backup.sh
0 6 * * SUN /opt/restic/restic_prune.sh