패키지 설치 권한도 없을 때 실행
curl -fsSL https://get.docker.com/rootless | sh
curl로 설치 시 삭제 방법
$ cd ~/bin
$ rm -f containerd containerd-shim containerd-shim-runc-v2 ctr docker docker-init docker-proxy dockerd dockerd-rootless-setuptool.sh dockerd-rootless.sh rootlesskit rootlesskit-docker-proxy runc vpnkit
$ systemctl --user start docker
$ systemctl --user enable docker
$ sudo loginctl enable-linger $(whoami)
$ export DOCKER_HOST=unix://$XDG_RUNTIME_DIR/docker.sock
$ docker run -d -p 8080:80 nginx