Add Elasticsearch input

Change-Id: If6af8941c91500b47528ef8300d166881a977c9d
diff --git a/telegraf/files/input/elasticsearch.conf b/telegraf/files/input/elasticsearch.conf
new file mode 100644
index 0000000..8956a02
--- /dev/null
+++ b/telegraf/files/input/elasticsearch.conf
@@ -0,0 +1,7 @@
+[[inputs.elasticsearch]]
+  servers = [{%- for server in values.servers|default([]) %}"{{ server }}"{%- if not loop.last%}, {% endif %} {%- endfor %}]
+  http_timeout = "{{ values.http_timeout|default("5s") }}"
+  local = {{ values.local|default("true")|lower }}
+  cluster_health = {{ values.cluster_heatlh|default("true")|lower }}
+  cluster_stats = {{ values.cluster_stats|default("true")|lower }}
+