修改Docker默认存储路径

 

[root@k8s-master-01 ~]# docker info | grep -i dir
Docker Root Dir: /var/lib/docker
[root@k8s-master-01 ~]# systemctl stop docker
[root@k8s-master-01 ~]# df -Th
Filesystem            Type      Size  Used Avail Use% Mounted on
/dev/mapper/rhel-root xfs        17G   14G  3.9G  78% /
devtmpfs              devtmpfs  1.9G     0  1.9G   0% /dev
tmpfs                 tmpfs     1.9G     0  1.9G   0% /dev/shm
tmpfs                 tmpfs     1.9G   12M  1.9G   1% /run
tmpfs                 tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/sda1             xfs      1014M  146M  869M  15% /boot
tmpfs                 tmpfs     378M     0  378M   0% /run/user/0
[root@k8s-master-01 ~]# mkdir -p /data/docker
[root@k8s-master-01 ~]# mv /var/lib/docker/* /data/docker/
[root@k8s-master-01 ~]# vim /usr/lib/systemd/system/docker.service
[root@k8s-master-01 ~]# cat /usr/lib/systemd/system/docker.service | grep -i graph
ExecStart=/usr/bin/dockerd  --graph /data/docker
###在/usr/lib/systemd/system/docker.serviceExecStart里加--graph指定新路径
[root@k8s-master-01 ~]# systemctl daemon-reload
[root@k8s-master-01 ~]# systemctl start docker
[root@k8s-master-01 ~]# docker info | grep -i dir
Docker Root Dir: /data/docker