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[doc] Add example to cross-plugin-concepts #12672

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Apr 13, 2021
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[doc] Add example to cross-plugin-concepts #12672

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[doc] Add example to cross-plugin-concepts
roaksoax Feb 16, 2021
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Update cross-plugin-concepts.asciidoc
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11 changes: 10 additions & 1 deletion docs/static/cross-plugin-concepts.asciidoc
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Expand Up @@ -10,8 +10,17 @@ List-type URI parameters will automatically expand strings that contain multiple
whitespace-delimited URIs into separate entries. This behaviour enables the expansion
of an arbitrary list of URIs from a single Environment- or Keystore-variable.

Examples of plugins and options that support this functionality:
These plugins and options support this functionality:

* <<plugins-inputs-elasticsearch-hosts,Elasticsearch input plugin - `hosts`>>
* <<plugins-outputs-elasticsearch-hosts,Elasticsearch output plugin - `hosts`>>
* <<plugins-filters-elasticsearch-hosts,Elasticsearch filter plugin - `hosts`>>

You can use this functionality to define an environment variable with
multiple whitespace-delimited URIs and use it for the options above.

**Example**

```
ES_HOSTS="es1.example.com es2.example.com:9201 es3.example.com:9201"
```