This functionality is experimental and may be changed or removed completely in a future release. Elastic will take a best effort approach to fix any issues, but experimental features are not subject to the support SLA of official GA features.

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Elastic Docs ›Journalbeat Reference [6.8] ›Configuring Journalbeat

Load the Elasticsearch index template

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Load the Elasticsearch index template

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The setup.template section of the journalbeat.yml config file specifies the index template to use for setting mappings in Elasticsearch. If template loading is enabled (the default), Journalbeat loads the index template automatically after successfully connecting to Elasticsearch.

A connection to Elasticsearch is required to load the index template. If the output is Logstash, you must load the template manually.

You can adjust the following settings to load your own template or overwrite an existing one.

setup.template.enabled
Set to false to disable template loading. If set this to false, you must load the template manually.
setup.template.name
The name of the template. The default is journalbeat. The Journalbeat version is always appended to the given name, so the final name is journalbeat-%{[beat.version]}.
setup.template.pattern

The template pattern to apply to the default index settings. The default pattern is journalbeat-*. The Journalbeat version is always included in the pattern, so the final pattern is journalbeat-%{[beat.version]}-*. The wildcard character -* is used to match all daily indices.

Example:

setup.template.name: "journalbeat"
setup.template.pattern: "journalbeat-*"
setup.template.fields
The path to the YAML file describing the fields. The default is fields.yml. If a relative path is set, it is considered relative to the config path. See the Directory layout section for details.
setup.template.overwrite
A boolean that specifies whether to overwrite the existing template. The default is false.
setup.template.settings

A dictionary of settings to place into the settings.index dictionary of the Elasticsearch template. For more details about the available Elasticsearch mapping options, please see the Elasticsearch mapping reference.

Example:

setup.template.name: "journalbeat"
setup.template.fields: "fields.yml"
setup.template.overwrite: false
setup.template.settings:
  index.number_of_shards: 1
  index.number_of_replicas: 1
setup.template.settings._source

A dictionary of settings for the _source field. For the available settings, please see the Elasticsearch reference.

Example:

setup.template.name: "journalbeat"
setup.template.fields: "fields.yml"
setup.template.overwrite: false
setup.template.settings:
  _source.enabled: false
setup.template.append_fields [preview] This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.

A list of fields to be added to the template and Kibana index pattern. This setting adds new fields. It does not overwrite or change existing fields.

This setting is useful when your data contains fields that Journalbeat doesn’t know about in advance.

If append_fields is specified along with overwrite: true, Journalbeat overwrites the existing template and applies the new template when creating new indices. Existing indices are not affected. If you’re running multiple instances of Journalbeat with different append_fields settings, the last one writing the template takes precedence.

Any changes to this setting also affect the Kibana index pattern.

Example config:

setup.template.overwrite: true
setup.template.append_fields:
- name: test.name
  type: keyword
- name: test.hostname
  type: long
setup.template.json.enabled

Set to true to load a JSON-based template file. Specify the path to your Elasticsearch index template file and set the name of the template. 

setup.template.json.enabled: true
setup.template.json.path: "template.json"
setup.template.json.name: "template-name

If the JSON template is used, the fields.yml is skipped for the template generation.

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