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Keep fields from events

The include_fields processor specifies which fields to export if a certain condition is fulfilled. The condition is optional. If it’s missing, the specified fields are always exported. The @timestamp, @metadata, and type fields are always exported, even if they are not defined in the include_fields list.

- include_fields:
    when:
      condition
    fields: ["field1", "field2", ...]

See Conditions for a list of supported conditions.

Note

Elastic Agent processors execute before ingest pipelines, which means that your processor configurations cannot refer to fields that are created by ingest pipelines or Logstash. For more limitations, refer to What are some limitations of using processors?

You can specify multiple include_fields processors under the processors section.

Note

If you define an empty list of fields under include_fields, only the required fields, @timestamp and type, are exported.