[Update]services depends on

docker-compose.yml

@@ -6,6 +6,8 @@ services:
       - 2380:2370
   confd:
     build: docker/confd
+    depends_on:
+      - etcd
   prometheus:
     build: docker/prometheus
     ports:
@@ -20,6 +22,7 @@ services:
     ports:
       - 8000:8000
     depends_on:
-      - node-exporter
+      - etcd
+      - prometheus
   node-exporter:
     build: docker/node_exporter