Add more info for each option under setup.template.settings (elastic#…

…4792)

* Add more info for each option under setup.template.settings

* Fix link

auditbeat/auditbeat.reference.yml

@@ -686,9 +686,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================
 

filebeat/filebeat.reference.yml

@@ -1078,9 +1078,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================
 

heartbeat/heartbeat.reference.yml

@@ -836,9 +836,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================
 

libbeat/_meta/config.reference.yml

@@ -622,9 +622,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================
 

metricbeat/metricbeat.reference.yml

@@ -1045,9 +1045,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================
 

packetbeat/packetbeat.reference.yml

@@ -1074,9 +1074,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================
 

winlogbeat/winlogbeat.reference.yml

@@ -651,9 +651,18 @@ output.elasticsearch:
 
 # Elasticsearch template settings
 setup.template.settings:
-  index.number_of_shards: 1
-  index.codec: best_compression
-  #_source.enabled: false
+
+  # A dictionary of settings to place into the settings.index dictionary
+  # of the Elasticsearch template. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping.html
+  #index:
+    #number_of_shards: 1
+    #codec: best_compression
+
+  # A dictionary of settings for the _source field. For more details, please check
+  # https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-source-field.html
+  #_source:
+    #enabled: false
 
 #============================== Kibana =====================================