Add balancermember define

[tjikkun]

No description provided.

[hunner]

Thanks for updating this PR @tjikkun. (For reference, the original was #237.) Just a note; you can push commits to the same branch and it will update this PR with changes.

What do you think about wrapping the concat target and fragments with an apache::balancer defined resource or something similar to haproxy::listen so that users can more easily set up the front-end node? And then we don't have to worry about what target to set on apache::balancermember because it can work like haproxy::balancermember and give a similar API where the target is based on the name of the cluster, not the path of the file.

It would be awesome to see the apache module support a pre-packaged load balancer setup, and this looks like it is headed in the right direction :).

[tjikkun]

Hi @hunner, thanks for your comments. I knew about the pushing but wasn't sure the PR would be re-opened by that.
Anyway I gave your suggestions a try. I am sure some functionality can be added, but I think this will provide a good base. Looking forward to your comments.

[hunner]

This is pretty sweet! Thanks :)

Now just spec tests ;)