How to permanently run dockerd

Question

Usually before doing the standard docker process like this:

docker pull epgg/eg
docker run -p 80:80 --name eg -it epgg/eg bash

You need to run sudo dockerd at the background (i.e. with terminal open).

How can I permanently run that at the background without terminal open?

Answer 1

No, better not run the docker daemon like that: sudo dockerd.

Depending on your Linux distribution you can use the following commands:

• For running docker at startup:

  sudo chkconfig docker on
  

• For starting docker service:

  sudo service docker start
  

These commands would work on RHEL/CentOS 6, Debian/Ubuntu.

If systemd is available on your Linux installation (for example on RHEL/CentOS 7), you could also use the following commands:

• For running docker at startup:

  sudo systemctl enable docker
  

• For starting docker service:

  sudo systemctl start docker