MQTT Eventstream

The mqtt_eventstream component connects two Home Assistant instances via MQTT.

To integrate MQTT Eventstream into Home Assistant, add the following section to your configuration.yaml file:

# Example configuration.yaml entry
mqtt_eventstream:
  publish_topic: MyServerName
  subscribe_topic: OtherHaServerName

Configuration variables:

• publish_topic (Optional): Topic for publishing local events
• subscribe_topic (Optional): Topic to receive events from the remote server.

Multiple Instances

Events from multiple instances can be aggregated to a single master instance by subscribing to a wildcard topic from the master instance.

# Example master instance configuration.yaml entry
mqtt_eventstream:
  publish_topic: master/topic
  subscribe_topic: slaves/#

For a multiple instance setup, each slave would publish to their own topic.

# Example slave instance configuration.yaml entry
mqtt_eventstream:
  publish_topic: slaves/upstairs
  subscribe_topic: master/topic

# Example slave instance configuration.yaml entry
mqtt_eventstream:
  publish_topic: slaves/downstairs
  subscribe_topic: master/topic