adding elasticsearch integration

files/elastic.yaml

@@ -0,0 +1,4 @@
+init_config:
+
+instances:
+    - url: http://localhost:9200

manifests/integrations/elasticsearch.pp

@@ -0,0 +1,23 @@
+# Class: datadog::integrations::elasticsearch
+#
+# This class will install the necessary configuration for the elasticsearch integration
+# Parameters:
+#   none
+#
+# Sample Usage:
+#
+#   class { 'datadog::integrations::elasticsearch' :
+#   }
+#
+class datadog::integrations::elasticsearch inherits datadog::params {
+
+  file { "${datadog::conf_dir}/elastic.yaml":
+    ensure  => file,
+    owner   => $datadog::dd_user,
+    group   => $datadog::dd_group,
+    mode    => '0644',
+    source  => 'puppet:///modules/datadog/elastic.yaml',
+    require => Package[ 'datadog-agent' ],
+    notify  => Service[ $datadog::service_name ],
+  }
+}