修改Docker默认存储路径

环境centos6.10，version: 1.7.1 修改docker默认存储路径防止镜像太多太大，也方便管理。 [root@hl-qy ~]# docker info Containers: 0 Images: 0 Storage Driver: devicemapper Pool Name: docker-253:1-1033069-pool Pool Blocksize: 65.54 kB Backing Filesystem: extfs Data file: /dev/loop0 Metadata file: /dev/loop1 Data Space Used: 305.7 MB Data Space Total: 107.4 GB Data Space Available: 24.51 GB Metadata Space Used: 729.1 kB Metadata Space Total: 2.147 GB Metadata Space Available: 2.147 GB Udev Sync Supported: true Deferred Removal Enabled: false Data loop file: /var/lib/docker/devicemapper/devicemapper/data Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata Library Version: 1.02.117-RHEL6 (2016-12-13) Execution Driver: native-0.2 Logging Driver: json-file Kernel Version: 2.6.32-358.6.2.el6.x86_64 Operating System: <unknown> CPUs: 1 Total Memory: 1.96 GiB Name: hl-qy ID: CMYG:IGVE:WZM3:U22U:5S56:JQH3:VZO2:CH3G:WHBZ:XXRY:UXDR:ZP5A [root@hl-qy ~]# yum list installed | grep docker docker-io.x86_64 1.7.1-2.el6 @epel [root@hl-qy ~]# docker version Client version: 1.7.1 Client API version: 1.19 Go version (client): go1.4.2 Git commit (client): 786b29d/1.7.1 OS/Arch (client): linux/amd64 Server version: 1.7.1 Server API version: 1.19 Go version (server): go1.4.2 Git commit (server): 786b29d/1.7.1 OS/Arch (server): linux/amd64 查到默认的信息后接下来修改 # mkdir /data # /etc/init.d/docker stop # cd /var/lib # cp –rf docker /data # rename ./docker/ ./docker_old ./docker/ # ln –s /data/docker  docker # /etc/init.d/docker start 重启后再查询下 # docker info Data loop file: /data/docker/devicemapper/devicemapper/data Metadata loop file: /data/docker/devicemapper/devicemapper/metadata 恭喜已经修改成功