Set Docker_Opts in centos

Question

I need to set docker to listen to tcp://0.0.0.0/4243 on my host machine running amazon linux (centos). All the documentation I have seen has told me to run the following command

Answer 1

I needed to change the default bridge interface docker0 to use my own bridge interface br0 and putting the following content in that file solved my issue:

CentOS 7.2 and docker 1.10.3

/usr/lib/systemd/system/docker.service.d/docker.conf

[Service] 
ExecStart=
ExecStart=/usr/bin/docker daemon --bridge=br0 -H fd://

and of course the following need to be performed after:

sudo systemctl daemon-reload

sudo systemctl restart docker 

ip link del docker0