vim /etc/sysconfig/docker-storage加入以下命令
DOCKER_STORAGE_OPTIONS="--storage-driver devicemapper --storage-opt dm.basesize=30G"
#DOCKER_STORAGE_OPTIONS="--storage-driver overlay2 "
vim /etc/sysconfig/docker-storage-setup 加入以下命令
#STORAGE_DRIVER=overlay2
STORAGE_DRIVER=devicemapper
重启 service docker restart
扩容docker总容量
mkdir -p /export/docker/ cd /var/lib/ ;rm -rf docker ;ln -s /export/docker/ . mkdir -p /var/lib/docker/devicemapper/devicemapper dd if=/dev/zero of=/var/lib/docker/devicemapper/devicemapper/data bs=1G count= seek=
