Docker默认存储路径：

# docker info
......
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
......
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Insecure Registries:
127.0.0.0/8
Registries: docker.io (secure)

修改Docker存储路径：

# systemctl stop docker

# cd /var/lib

# cp –rf docker /data

# rm –rf docker

# ln –s /data/docker  docker

验证Docker存储信息：

# docker info
......
Data loop file: /data/docker/devicemapper/devicemapper/data
......
Docker Root Dir: /data/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Insecure Registries:
127.0.0.0/8
Registries: docker.io (secure)

Docker默认存储路径修改