* UPDATE [nanomq.conf] update configure option about rule engine.
@@ -191,3 +191,21 @@ http_server.jwt.public.keyfile=/etc/certs/jwt/jwtRS256.key.pub
##
## Value: File
http_server.jwt.private.keyfile=/etc/certs/jwt/jwtRS256.key
+
+## Rule engine option, when persistence with
+## rule engine, this option is must be ON.
+##
+## Value: ON | OFF
+rule_engine_option=ON
+
+## Rule engine database option
+## Choose a database to persistence data
+##
+## Value: sqlite | fdb (foundationdb)
+rule_engine_option.db=sqlite
+
+## Rule engine option database sqlite path
+## Sqlite db path, default is exec path.
+##
+## Value: File
+rule_engine_option.db.sqlite_path=rule_engine.db
\ No newline at end of file
