try
systemctl start docker.service
In case anyone finds it handy in future:
On CentOS 7 try linking the non-existent docker.io binary to the existing docker binary as follows:
ln -s /usr/bin/docker /usr/bin/docker.io
This did it for me just nowā¦
Worked. Somehow this should come up as the right answer.
Exactly. If it says docker isnāt running, just do a service docker start and move on. Thatās what I did.