Configuring CentOS 7 Docker_host to 0.0.0.0:2375

The configuration file location for CentOS 7 is slightly different: see

Set_mirror script in Https://www.daocloud.io/mirror#accelerator-doc.

Vi/usr/lib/systemd/system/docker.service

[Unit]
Description=docker Application Container Engine
Documentation=http://docs.docker.com
After=network.target Docker.socket
Requires=docker.socket

[Service]
Type=notify
# The default is not-use SYSTEMD for cgroups because the delegate issues still
# exists and SYSTEMD currently does not support the Cgroup feature set required
# for containers run by Docker
Environmentfile=/etc/sysconfig/docker
Execstart=/usr/bin/docker daemon-h fd://-H tcp://0.0.0.0:2375
Mountflags=slave
limitnofile=1048576
limitnproc=1048576
Limitcore=infinity
Timeoutstartsec=0
# Set delegate yes so, SYSTEMD does not reset the cgroups of Docker containers
Delegate=yes

[Install]
Wantedby=multi-user.target

Effective Service: Systemctl Daemon-reload

Service Docker restart

Configuring CentOS 7 Docker_host to 0.0.0.0:2375