add a hint to possible basic authentication settings

CHANGELOG.md

@@ -13,6 +13,7 @@
 - [#1348](https://github.com/influxdata/telegraf/issues/1348): Telegraf "internal" plugin for collecting stats on itself.
 - [#2127](https://github.com/influxdata/telegraf/pull/2127): Update Go version to 1.7.4.
 - [#2126](https://github.com/influxdata/telegraf/pull/2126): Support a metric.Split function.
+- [#2026](https://github.com/influxdata/telegraf/pull/2065): elasticsearch "shield" (basic auth) support doc.
 
 ### Bugfixes
 

etc/telegraf.conf

@@ -777,6 +777,8 @@
 # # Read stats from one or more Elasticsearch servers or clusters
 # [[inputs.elasticsearch]]
 #   ## specify a list of one or more Elasticsearch servers
+#   # you can add username and password to your url to use basic authentication:
+#   # servers = ["http://user:pass@localhost:9200"]
 #   servers = ["http://localhost:9200"]
 #
 #   ## Timeout for HTTP requests to the elastic search server(s)

plugins/inputs/elasticsearch/elasticsearch.go

@@ -60,6 +60,8 @@ type indexHealth struct {
 
 const sampleConfig = `
   ## specify a list of one or more Elasticsearch servers
+  # you can add username and password to your url to use basic authentication:
+  # servers = ["http://user:pass@localhost:9200"]
   servers = ["http://localhost:9200"]
 
   ## Timeout for HTTP requests to the elastic search server(s)