title: Prometheus Alertmanager HA config in config file
body: <p>In the documentation I see you can provide flags to specify the high availability information: <a href="https://github.com/prometheus/alertmanager#high-availability" rel="nofollow noreferrer">https://github.com/prometheus/alertmanager#high-availability</a></p>
  
  <p>How do I specify these things in the config file instead of as CLI params?</p>