home-assistant.io/source/_integrations/apache_kafka.markdown
2022-06-29 18:40:28 +02:00

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---
title: Apache Kafka
description: Send data and events to Apache Kafka.
ha_category:
- History
ha_release: 0.97
ha_codeowners:
- '@bachya'
ha_domain: apache_kafka
ha_iot_class: Local Push
ha_integration_type: integration
---
The `apache_kafka` integration sends all state changes to a
[Apache Kafka](https://kafka.apache.org/) topic.
Apache Kafka is a real-time data pipeline that can read and write streams of data. It
stores its data safely in a distributed, replicated, fault-tolerant cluster.
To use the `apache_kafka` integration in your installation, add the following to your
`configuration.yaml` file:
```yaml
apache_kafka:
ip_address: localhost
port: 9092
topic: home_assistant_1
```
{% configuration %}
ip_address:
description: The IP address or hostname of an Apache Kafka cluster.
required: true
type: string
port:
description: The port to use.
required: true
type: integer
username:
description: The username of Apache Kafka cluster for authentication.
required: false
type: string
password:
description: The password of Apache Kafka cluster for authentication.
required: false
type: string
security_protocol:
description: The protocol used to communicate with brokers. Use `SASL_SSL` for authentication.
required: false
default: PLAINTEXT
type: string
topic:
description: The Kafka topic to send data to.
required: true
type: string
filter:
description: Filters for entities to be included/excluded. ([Configure Filter](#configure-filter))
required: false
type: map
keys:
include_domains:
description: Domains to be included.
required: false
type: list
include_entity_globs:
description: Include all entities matching a listed pattern.
required: false
type: list
include_entities:
description: Entities to be included.
required: false
type: list
exclude_domains:
description: Domains to be excluded.
required: false
type: list
exclude_entity_globs:
description: Exclude all entities matching a listed pattern.
required: false
type: list
exclude_entities:
description: Entities to be excluded.
required: false
type: list
{% endconfiguration %}
## Configure Filter
By default, no entity will be excluded. To limit which entities are being exposed to `Apache Kafka`, you can use the `filter` parameter.
```yaml
# Example filter to include specified domains and exclude specified entities
apache_kafka:
ip_address: localhost
port: 9092
topic: home_assistant_1
filter:
include_domains:
- alarm_control_panel
- light
include_entity_globs:
- binary_sensor.*_occupancy
exclude_entities:
- light.kitchen_light
```
{% include common-tasks/filters.md %}