DodoApp: Implement user synchronization API

Change-Id: Id38c96f379832d2d5034e215de2e51d28a25634c
diff --git a/core/installer/cmd/dodo_app.go b/core/installer/cmd/dodo_app.go
index f6d9c43..ef62f5c 100644
--- a/core/installer/cmd/dodo_app.go
+++ b/core/installer/cmd/dodo_app.go
@@ -30,6 +30,7 @@
 	gitRepoPublicKey  string
 	db                string
 	networks          []string
+	fetchUsersAddr    string
 }
 
 func dodoAppCmd() *cobra.Command {
@@ -80,6 +81,12 @@
 		"",
 	)
 	cmd.Flags().StringVar(
+		&dodoAppFlags.fetchUsersAddr,
+		"fetch-users-addr",
+		"",
+		"",
+	)
+	cmd.Flags().StringVar(
 		&dodoAppFlags.repoPublicAddr,
 		"repo-public-addr",
 		"",
@@ -195,7 +202,8 @@
 		nsc,
 		jc,
 		env,
-		!dodoAppFlags.external,
+		dodoAppFlags.external,
+		dodoAppFlags.fetchUsersAddr,
 	)
 	if err != nil {
 		return err