Set current ipaddres as a variable on project level

I want to set the current public ip as a variable on project level.
How can i do this?

I have the right ip stored in a file /tmp/current_ip and i want to use this ip in several run commands in my configuration file.

I’m not sure what your use case is but

If you want to set any type of value at the project level so that it can be accessed from within a project instant as it runs you can define Environment Variables via the ‘Project Settings’ page.