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80 lines
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ReStructuredText
80 lines
2.3 KiB
ReStructuredText
Prometheus Component
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====================
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.. seo::
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:description: Instructions for setting up a prometheus exporter with ESPHome.
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:image: prometheus.svg
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The ``prometheus`` component enables an HTTP endpoint for the
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:doc:`web_server` in order to integrate a `Prometheus <https://prometheus.io/>`__ installation.
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This can be used to scrape data directly into your Prometheus-based monitoring and alerting-system,
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without the need of any other software.
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The list of available metrics can be found by directly browsing your node under
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``<ip or node_name.local>/metrics``, and may be increased in the future.
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.. code-block:: yaml
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# Example configuration entry
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web_server:
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# Activates prometheus /metrics endpoint
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prometheus:
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Configuration variables:
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------------------------
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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- **include_internal** (*Optional*, boolean): Whether ``internal`` entities should be displayed on the
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web interface. Defaults to ``false``.
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- **relabel** (*Optional*): Override metric labels. See :ref:`prometheus-relabel`
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.. note::
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Example integration into the configuration of your prometheus:
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.. code-block:: yaml
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scrape_configs:
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- job_name: esphome
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static_configs:
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- targets: [<ip or node_name.local>]
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Metric Relabeling
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-----------------
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ESPHome allows you to do some basic relabeling of Prometheus metrics.
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This is useful if you want to have different metric names or IDs than those shown in Home Assistant or the web interface.
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You can relabel metric name or ID labels by adding a ``relabel`` block in the ``prometheus`` configuration,
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and then adding a block with ``id`` and/or ``name`` fields for each sensor whose labels your want to override.
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.. _prometheus-relabel:
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``relabel``
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***********
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Set the ``id`` and ``name`` label values of the Prometheus metric for the sensor with the specified ID.
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.. code-block:: yaml
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# Example configuration entry
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prometheus:
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relabel:
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my_voltage_sensor:
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id: angry_pixies
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name: "Angry Pixies"
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See Also
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--------
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- :doc:`/components/web_server`
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- :ref:`api-rest`
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- :doc:`/components/http_request`
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- :apiref:`prometheus/prometheus_handler.h`
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- `Prometheus <https://prometheus.io/>`__
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- :ghedit:`Edit`
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