Using IP address instead of hostname to sync masters

[mariocorsanici]

Hello,

I am trying to run multimaster in a docker container and I want to automate the sync procedure between the masters without modifying the /etc/hosts file, since it's a system file. Is it possible to use the IP address instead of the hostname to communicate with the masters?

[Alexander Tiderko]

Hi,
you have to set the ROS_IP environment variable before starting the roscore and other ROS nodes.
This should be enough.

[mariocorsanici]

Thank you so much, it worked.