Heartbeat has a new feature where it will make queries directly to the Elasticsearch configured as the output. To do this it creates an internal Elasticsearch client from the Elasticsearch output settings provided to the beat. Additionally, Heartbeat only supports the Elasticsearch output and all other outputs types should be removed from the v1 and v2 agent spec files.

When Heartbeat is configured to use the shipper, the agent must provide both the shipper output configuration and the Elasticsearch output configuration.

CC @andrewvc @emilioalvap