Add elasticsearch output

Change-Id: Ic04a09cd8f25812fcf97061e88f1a36745f0eb39
diff --git a/metadata/service/init.yml b/metadata/service/init.yml
new file mode 100644
index 0000000..f714b99
--- /dev/null
+++ b/metadata/service/init.yml
@@ -0,0 +1,3 @@
+parameters:
+  fluentd:
+    dollar: "$"