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[Doc] Add example Env var usage for hosts setting #992

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[Doc] Add example Env var usage for hosts setting #992

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Add example under hosts setting
roaksoax Feb 16, 2021
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Update index.asciidoc
roaksoax Feb 16, 2021
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Update index.asciidoc
roaksoax Feb 16, 2021
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roaksoax Sep 26, 2022
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10 changes: 10 additions & 0 deletions docs/index.asciidoc
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Expand Up @@ -523,6 +523,16 @@ should reference only data or client nodes in Elasticsearch.
Any special characters present in the URLs here MUST be URL escaped! This means
`#` should be put in as `%23` for instance.

When using Logstash 7.9+, this setting supports defining an environment variable
`hosts => '${S}'` with multiple {logstash-ref}/plugin-concepts.html#space-delimited-uris-in-list-params[whitespace-delimited URIs]:

Examples:

`ES_HOSTS="es1.example.com es2.example.com:9201 es3.example.com:9201"`
`ES_HOSTS="127.0.0.1:9200 127.0.0.2:9200"`
`ES_HOSTS="http://127.0.0.1 http://127.0.0.2"`
`ES_HOSTS="https://127.0.0.1:9200/mypath https://127.0.0.2:9200/mypath"`

[id="plugins-{type}s-{plugin}-http_compression"]
===== `http_compression`

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