A lightweight service register/discovery framework.

Beacon mainly does three things:

• run or stop docker container on cluster;
• register or unregister container as a instance of the service;
• reload configuration of haproxy

Beacon contains three modules:

• Beacond: a daemon used to run or stop docker container according to the commands received from etcd, and then to send register or unregister info back to etcd.
• Beaconctl: a command line tool to send beacon commands to etcd. It can also start or stop docker container directly under local mode (--local).
• Confd: a daemon used to reload configuration of haproxy according to etcd.

Yes, beacon rely on etcd.