Docker access in CentOS

Configuration of the CentOS 7 to be accesible the deamon from outside

Stop Docker

[root@localhost jordi]# systemctl stop docker

[root@localhost jordi]# cat /lib/systemd/system/docker.service

look at the

ExecStart=/usr/bin/dockerd

It is risky touch direcly the file direcly there is a edit utility in linux services

systemctl edit docker

[Service]
ExecStart=
 ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock

 finally start docker

[root@localhost jordi]# systemctl start docker
[root@localhost jordi]# systemctl restart docker
[root@localhost jordi]# curl http://localhost:2375 {"message":"page not found"}
[root@localhost jordi]# docker run ubuntu echo "helo world" helo world


Remember set up the firewall, A rapid to way this issue around is disable it

[root@localhost jordi]# systemctl disable firewalld