Hello, We are using Consul, written by the same guys who wrote Vagrant. Really great tool. http://www.consul.io/
Consul is a service registry and discovery and DNS solution among other things. I can create an internal name like 'some.thing.internal' which will resolve to a pool of nodes. So when I do a 'dig + short some.thing.internal' it will return IPaddressA IPaddressB IPaddressC etc... Consul keeps the list of nodes related to a particular URI up to date in real-time. It uses health checks and so on and will round robin the traffic to all the nodes evenly. But I want HAProxy too. So I want HAProxy to say, "I see a URI that resolves to N number of IP addresses. I will add the addresses to the backend. I will keep polling the URI. If the address change I will update the backend." How can I accomplish this? What are my options? A cron job to run 'dig + short some.thing.internal' every minute and send that info to HAProxy for backend members? Unix sockets, ALCs and stick-tables? I just want the result that I described above done in real-time so HAProxy restart not required. I don't care how it is accomplished. Thanks in advance for any ideas. ************************* Justin Franks Lead Operations Engineer SaaS, Cloud, Data Centers & Infrastructure Lithium Technologies, Inc 225 Bush St., 15th Floor San Francisco, CA 94104 tel: +1 415 757 3100 x3219
