Add docs on replicating APM Server or Beats indices
This commit adds a brief note to the documentation on how to manage the
index templates that are used to create APM Server and Beats indices.
@@ -43,3 +43,25 @@ on the underlying Lucene index yet retained up to the number of operations
configured by this setting. The default value is `0`.
For more information about index settings, see {ref}/index-modules.html[Index modules].
+
+[float]
+[[ccr-overview-beats]]
+==== Setting soft deletes on indices created by APM Server or Beats
+
+If you want to replicate indices created by APM Server or Beats, and are
+allowing APM Server or Beats to manage index templates, you need to enable
+soft deletes on the underlying index templates. To enable soft deletes on the
+underlying index templates, add the following changes to the relevant APM Server
+or Beats configuration file.
+
+["source","yaml"]
+----------------------------------------------------------------------
+setup.template.overwrite: true
+setup.template.settings:
+ index.soft_deletes.enabled: true
+ index.soft_deletes.retention.operations: 1024
+----------------------------------------------------------------------
+
+For additional information on controlling the index templates managed by APM
+Server or Beats, see the relevant documentation on loading the Elasticsearch
+index template.
