Revert "update docker-compose.yml"

docker-compose.yml

@@ -7,8 +7,8 @@ services:
     links:
       - proxy_redis
     environment:
-      db_type: REDIS
-      db_host: proxy_redis
-      db_port: 6379
+      db_type: SSDB
+      ssdb_host: proxy_redis
+      ssdb_port: 6379
   proxy_redis:
     image: "redis"