This charm is used to advertise virtual IP of scaled services via BGP.
The use case is for router fabric based HA.
The service to be exported can be monitred via a healthcheck command. The route is withdrawn if the service is unavailable.
juju deploy bgp-advertiser apache-vip
juju config apache-vip ...
juju relate apache-vip apache
Scale out the principal unit this is related to.
Currently only one instance of this charm can be deployed per machine