Fix 'TemplateNotFound' error

Change-Id: Ib8415675b45be6a3676ba2bb1b3a2adf3d8c51bd
diff --git a/etcd/meta/grafana.yml b/etcd/meta/grafana.yml
index 602bad4..9007964 100644
--- a/etcd/meta/grafana.yml
+++ b/etcd/meta/grafana.yml
@@ -4,7 +4,7 @@
   etcd-cluster-prometheus:
     datasource: prometheus
     format: json
-    template: etcd/files/grafana_dashboards/etcd_prometheus.json.json
+    template: etcd/files/grafana_dashboards/etcd_prometheus.json
   etcd:
     datasource: influxdb
     format: json