Home Assistant

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

(string)(Optional)Topic for publishing local events.

subscribe_topic

(string)(Optional)Topic to receive events from the remote server.

ignore_event

(list)(Optional)Ignore sending these events over mqtt.

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/#
  ignore_event:
    - call_service
    - state_changed

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