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Add Host metadata

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Add Host metadata

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Inputs that collect logs and metrics use this processor by default, so you do not need to configure it explicitly.

The add_host_metadata processor annotates each event with relevant metadata from the host machine.

If you are using Elastic Agent to monitor external system, use the add_observer_metadata processor instead of add_host_metadata.

Example

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  - add_host_metadata:
      cache.ttl: 5m
      geo:
        name: nyc-dc1-rack1
        location: 40.7128, -74.0060
        continent_name: North America
        country_iso_code: US
        region_name: New York
        region_iso_code: NY
        city_name: New York

The fields added to the event look like this:

{
   "host":{
      "architecture":"x86_64",
      "name":"example-host",
      "id":"",
      "os":{
         "family":"darwin",
         "type":"macos",
         "build":"16G1212",
         "platform":"darwin",
         "version":"10.12.6",
         "kernel":"16.7.0",
         "name":"Mac OS X"
      },
      "ip": ["192.168.0.1", "10.0.0.1"],
      "mac": ["00:25:96:12:34:56", "72:00:06:ff:79:f1"],
      "geo": {
          "continent_name": "North America",
          "country_iso_code": "US",
          "region_name": "New York",
          "region_iso_code": "NY",
          "city_name": "New York",
          "name": "nyc-dc1-rack1",
          "location": "40.7128, -74.0060"
        }
   }
}

Configuration settings

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Elastic Agent processors execute before ingest pipelines, which means that they process the raw event data rather than the final event sent to Elasticsearch. For related limitations, refer to What are some limitations of using processors?

If host.* fields already exist in the event, they are overwritten by default unless you set replace_fields to true in the processor configuration.

Name	Required	Default	Description
`netinfo.enabled`	No	`true`	Whether to include IP addresses and MAC addresses as fields `host.ip` and `host.mac`.
`cache.ttl`	No	`5m`	Sets the cache expiration time for the internal cache used by the processor. Negative values disable caching altogether.
`geo.name`	No		User-definable token to be used for identifying a discrete location. Frequently a data center, rack, or similar.
`geo.location`	No		Longitude and latitude in comma-separated format.
`geo.continent_name`	No		Name of the continent.
`geo.country_name`	No		Name of the country.
`geo.region_name`	No		Name of the region.
`geo.city_name`	No		Name of the city.
`geo.country_iso_code`	No		ISO country code.
`geo.region_iso_code`	No		ISO region code.
`replace_fields`	No	`true`	Whether to replace original host fields from the event. If set `false`, original host fields from the event are not replaced by host fields from `add_host_metadata`.

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