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68 lines
1.6 KiB
Markdown
68 lines
1.6 KiB
Markdown
---
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title: "MQTT Eventstream"
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description: "Instructions on how to setup MQTT eventstream within Home Assistant."
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logo: mqtt.png
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ha_category:
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- Other
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ha_release: 0.11
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ha_iot_class: Configurable
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---
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The `mqtt_eventstream` integration connects two Home Assistant instances via MQTT.
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## Configuration
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To integrate MQTT Eventstream into Home Assistant, add the following section to your `configuration.yaml` file:
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```yaml
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# Example configuration.yaml entry
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mqtt_eventstream:
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publish_topic: MyServerName
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subscribe_topic: OtherHaServerName
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```
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{% configuration %}
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publish_topic:
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description: Topic for publishing local events.
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required: false
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type: string
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subscribe_topic:
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description: Topic to receive events from the remote server.
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required: false
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type: string
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ignore_event:
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description: Ignore sending these [events](/docs/configuration/events/) over mqtt.
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required: false
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type: list
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{% endconfiguration %}
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## Multiple Instances
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Events from multiple instances can be aggregated to a single master instance by subscribing to a wildcard topic from the master instance.
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```yaml
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# Example master instance configuration.yaml entry
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mqtt_eventstream:
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publish_topic: master/topic
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subscribe_topic: slaves/#
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ignore_event:
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- call_service
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- state_changed
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```
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For a multiple instance setup, each slave would publish to their own topic.
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```yaml
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# Example slave instance configuration.yaml entry
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mqtt_eventstream:
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publish_topic: slaves/upstairs
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subscribe_topic: master/topic
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```
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```yaml
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# Example slave instance configuration.yaml entry
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mqtt_eventstream:
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publish_topic: slaves/downstairs
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subscribe_topic: master/topic
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```
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