summary: >
  Spawned two replicas of Prometheus to provide HA

features:
  - Spawned two replicas of Prometheus inside Docker Swarm.
    These two instances have the same configuration file
    and scrape the same endpoints. Therefore, they can be
    treated as one-to-one copies.
    Due to a limitation, when connecting to the Prometheus
    web UI it is not possible to choose to which of the
    existing Prometheus servers to connect and those
    servers may contain slightly different results for the
    same queries. Therefore, we suggest that you use Grafana
    to visualize the data.