Ubuntu20.04中使用snap安装的docker如何开启远程访问？

转发：https://superuser.com/questions/1431826/expose-api-over-tcp-of-snap-installed-docker-on-ubuntu-18-04

@Rumdex

By running: systemctl status snap.docker.dockerd.service I was able
to see which was the loaded service file:
/etc/systemd/system/snap.docker.dockerd.service Just looked inside
this file looking for the ExecStart directive. It was there. So just
had to add -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock to
that line, so it ended up looking like:
ExecStart=/usr/bin/snap run docker.dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock
Rebooted. Works.