docker修改存储位置(ubuntu系统下)

1.docker默认存储位置为/var/lib/docker

sudo docker info | grep "Docker Root Dir" #查看默认存储位置

WARNING: No swap limit support
Docker Root Dir: /var/lib/docker

df /var/lib/docker # 查看文件夹挂在位置

Filesystem     1K-blocks     Used Available Use% Mounted on
/dev/vda1       41151808 16235916  22802464  42% /var/lib/docker

2.停止docker进程

systemctl stop docker

3.拷贝或移动docker文件至新目录

mv -R /var/lib/docker/* /opt/docker/

4.修改配置文件daemon.json

vim /etc/docker/daemon.json

{
 "insecure-registries":["47.98.121.87:8088"],
 "registry-mirrors":["http://hub-mirror.c.163.com"],
 "graph": "/opt/docker"
 }

增加一行代码"graph": "/opt/docker"

5.重新加载docker配置文件,启动docker即可

systemctl daemon-reload
systemctl restart docker