How to select the private IP to use to advertise consul agent ?

[lucj]

I'm using ContainerPilot on a micro-services application deployed on a Swarm.

Within a redis container (based on the autopilotpattern/redis image), there are several interfaces (due to Swarm) and I do not manage to select the correct private IP as the consul agent's advertise address. As consul sees several private IP, I need to select one though.

Is there a way to specify the interface to use in case several are present ? An env var which could be provided in the compose file ?

This env var could be used to get the correct IP which then could be set in a etc/consul.json file using sed like replacement (as suggested in TritonDataCenter/containerpilot#258).

This env var could also be used in manage.py and defaut to eth0 (currently hardcoded:https://github.com/autopilotpattern/redis/blob/7588d9c604643d7eb1ea9c919929bee7f914e8fa/bin/manage.sh#L314-316

I'm currently having some hard time deploying ContainerPilot on Swarm :
(TritonDataCenter/containerpilot#503)

What do you think ?

[jwreagor]

Apologies for not getting back to you. I think adding an environment variable to configure the interface sounds perfectly reasonable. I'm not sure anyone is going to get a commit out any time soon on our end (for this blueprint) but I'd be happy to code review a PR if you have the time.