linux运维、架构之路-Docker修改本地镜像存储位置

1、查看Docker默认存放数据目录

[root@k8s-node1 tools]# docker info | grep "Docker Root Dir"
WARNING: API is accessible on http://127.0.0.1:4243 without encryption.
         Access to the remote API is equivalent to root access on the host. Refer
         to the 'Docker daemon attack surface' section in the documentation for
         more information: https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
 Docker Root Dir: /var/lib/docker

2、停止Docker服务

 systemctl stop docker

3、移动Docker数据目录到指定的分区

[root@k8s-node1 app]# mv /var/lib/docker /app/data/docker    #这里/app为挂载的网络存储NAS
[root@k8s-node1 app]# ln -s /app/data/docker /var/lib/docke  #软链接到原来的目录

4、启动Docker服务查看存储目录

systemctl start docker

[root@k8s-node1 ~]# docker info|grep "Docker Root Dir"
WARNING: API is accessible on http://127.0.0.1:4243 without encryption.
         Access to the remote API is equivalent to root access on the host. Refer
         to the 'Docker daemon attack surface' section in the documentation for
         more information: https://docs.docker.com/engine/security/security/#docker-daemon-attack-surface
 Docker Root Dir: /app/data/docker