- /lib/systemd/system/docker.service
$ cat /lib/systemd/system/docker.service
...
ExecStart=/usr/bin/dockerd -g /sw/docker -H unix:///var/run/docker.sock
...
-g /sw/docker
docker root path를/sw/docker
로 변경-H unix:///var/run/docker.sock
추가 docker remote api 접근 hostunix:///var/run/docker.sock
로 설정