refactor(emqx_conf): Decorate get_override_config_file

apps/emqx_conf/src/emqx_conf_app.erl

@@ -44,7 +44,7 @@ copy_override_conf_from_core_node() ->
             ?SLOG(debug, #{msg => "skip_copy_overide_conf_from_core_node"}),
             {ok, -1};
         Nodes ->
-            {Results, Failed} = rpc:multicall(Nodes, ?MODULE, get_override_config_file, [], 20000),
+            {Results, Failed} = emqx_conf_proto_v1:get_override_config_file(Nodes),
             {Ready, NotReady0} = lists:partition(fun(Res) -> element(1, Res) =:= ok end, Results),
             NotReady = lists:filter(fun(Res) -> element(1, Res) =:= error end, NotReady0),
             case (Failed =/= [] orelse NotReady =/= []) andalso Ready =/= [] of

apps/emqx_conf/src/proto/emqx_conf_proto_v1.erl

@@ -31,6 +31,8 @@
 
         , reset/2
         , reset/3
+
+        , get_override_config_file/1
         ]).
 
 -include_lib("emqx/include/bpapi.hrl").
@@ -89,3 +91,7 @@ reset(KeyPath, Opts) ->
               | emqx_rpc:badrpc().
 reset(Node, KeyPath, Opts) ->
     rpc:call(Node, emqx, reset_config, [KeyPath, Opts]).
+
+-spec get_override_config_file([node()]) -> emqx_rpc:multicall_result().
+get_override_config_file(Nodes) ->
+    rpc:multicall(Nodes, emqx_conf_app, get_override_config_file, [], 20000).