Code review comment for ~tcuthbert/charm-telegraf:master

> I think the best solution here is to update the haproxy[1] and content-
> cache[2] to pass through the listen address for haproxy statistics, they both
> already pass through the username, password, and port. Then have the telegraf
> charm check the presence of this and use it if it's something other than
> 0.0.0.0. If it doesn't exist, try work it out with the existing code (rel
> ["private-address"] and hookenv.unit_private_ip()).
>
> For the HAProxy charm, it defaults to statistics on 0.0.0.0 so why it doesn't
> appear broken with the latest Juju version - localhost or private-address,
> HAProxy statistics will answer on both interfaces. For the Content-cache
> charm, it configures statistics to listen on 127.0.0.1.
>
> [1]https://bazaar.launchpad.net/~haproxy-team/charm-
> haproxy/trunk/view/head:/hooks/hooks.py#L1437
> [2]https://git.launchpad.net/~hloeung/content-cache-
> charm/tree/reactive/content_cache.py#n483

okay I've updated, see https://code.launchpad.net/~tcuthbert/content-cache-charm/+git/content-cache-charm/+merge/396233 also.