home-assistant.io/source/_components/prometheus.markdown
2017-08-25 13:06:53 +02:00

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---
layout: page
title: "Prometheus"
description: "Record events in Prometheus."
date: 2017-06-25 08:00
sidebar: true
comments: false
sharing: true
logo: prometheus.png
footer: true
ha_category: "History"
ha_release: 0.49
---
The `prometheus` component exposes metrics in a format which [Prometheus](https://prometheus.io/) can read.
To use the `prometheus` component in your installation, add the following to your `configuration.yaml` file:
```yaml
# Example configuration.yaml entry
prometheus:
```
Configuration variables:
- **exclude** (*Optional*): Configure which components should be excluded from recording.
- **entities** (*Optional*): The list of entity ids to be excluded from recording.
- **domains** (*Optional*): The list of domains to be excluded from recording.
- **include** (*Optional*): Configure which components should be included in recordings. If set, all other entities will not be recorded. Values set by the **blacklist** option will prevail.
- **entities** (*Optional*): The list of entity ids to be included from recordings.
- **domains** (*Optional*): The list of domains to be included from recordings.
You can then configure Prometheus to fetch metrics from Home Assistant by adding to its `scrape_configs` configuration.
```yaml
# Example Prometheus scrape_configs entry
- job_name: 'hass'
scrape_interval: 60s
metrics_path: /api/prometheus
params:
api_password: ['PASSWORD']
scheme: https
static_configs:
- targets: ['HOSTNAME:8123']
```