how to ignore some ip which it shall not in haproxy config

[duffqiu]

I run mesos, marathon and docker solution.
But i have two kind of app, one is http/rest, another is our private rpc app.
The rpc app's discovery and LB are handled by other gateway.
So I want to ignore these rpc app when generate haproxy config file.

Any one can help?

Thanks a lot!