Urlmon - etcd backed concurrent url monitor that alerts to sensu, and emits metrics to librato
This scratches a specific itch I had. Backend and alerting may be interfaced out in the future. Right now this isminimal impl to solve an immediate need.
use --help to get a list of options and defaults. Each options long format can be specified as an allcaps env variable:
Check format in etcd:
/prefix/checkID/ - url (required) - content - interval - splay
Theres a simple status ui that emits json for each check that's running. By default it's bound to :9731