Added the forward output

Change-Id: I981f15e2daa4dfa6ac47c0f40d22e195a67a91d5
Related-Bug: PROD-22234
diff --git a/metadata/service/agent/output/elasticsearch.yml b/metadata/service/agent/output/elasticsearch.yml
index 29921d0..8bf4705 100644
--- a/metadata/service/agent/output/elasticsearch.yml
+++ b/metadata/service/agent/output/elasticsearch.yml
@@ -1,25 +1,11 @@
 classes:
-- service.fluentd.agent.single
+- service.fluentd.agent.output.filter.common
 parameters:
   fluentd:
     agent:
       config:
         label:
           default_output:
-            filter:
-              add_general_fields:
-                tag: "**"
-                type: record_transformer
-                enable_ruby: true
-                record:
-                  - name: Type
-                    value: log
-                  - name: environment_label
-                    value: ${_param:cluster_domain}
-                  - name: Hostname
-                    value: ${fluentd:dollar}{ hostname }
-                  - name: Timestamp
-                    value: ${fluentd:dollar}{ time.strftime('%Y-%m-%dT%H:%M:%S.%N%z') }
             match:
               elasticsearch_output:
                 tag: "**"