diff --git a/core/constant/common.go b/core/constant/common.go
index d255968af..af21c4164 100644
--- a/core/constant/common.go
+++ b/core/constant/common.go
@@ -174,3 +174,5 @@ var DynamicRoutes = []string{
 }
 
 var CertStore atomic.Value
+
+var DaemonJsonPath = "/etc/docker/daemon.json"