Улучшения в кластере. Кластер формируется динамически, без единой точки отказа (каждая нода подключается ко всем трём через connect_nodes/0)

src/admin_app.erl

@@ -1,49 +0,0 @@
--module(admin_app).
--behaviour(application).
-
--export([start/2, stop/1]).
-
-start(_StartType, _StartArgs) ->
-  application:ensure_all_started(cowboy),
-  start_admin_http(),
-  {ok, self()}.
-
-stop(_State) ->
-  ok.
-
-start_admin_http() ->
-  Port = application:get_env(eventhub, admin_http_port, 8445),
-
-  Dispatch = cowboy_router:compile([
-    {'_', [
-      {"/admin/health", admin_handler_health, []},
-      {"/admin/stats", admin_handler_stats, []},
-      {"/admin/users", admin_handler_users, []},
-      {"/admin/users/:id", admin_handler_user_by_id, []},
-      {"/admin/calendars", admin_handler_calendars, []},
-      {"/admin/calendars/:id", admin_handler_calendar_by_id, []},
-      {"/admin/events", admin_handler_events, []},
-      {"/admin/events/:id", admin_handler_event_by_id, []},
-      {"/admin/reports", handler_reports, []},
-      {"/admin/reports/:id", handler_report_by_id, []},
-      {"/admin/tickets", handler_tickets, []},
-      {"/admin/tickets/:id", handler_ticket_by_id, []},
-      {"/admin/tickets/stats", handler_ticket_stats, []},
-      {"/admin/subscriptions", handler_admin_subscriptions, []},
-      {"/admin/banned-words", handler_banned_words, []}
-    ]}
-  ]),
-
-  Middlewares = [
-    cowboy_router,
-    cowboy_handler
-  ],
-
-  Env = #{dispatch => Dispatch},
-
-  cowboy:start_clear(admin_http, [{port, Port}], #{
-    env => Env,
-    middlewares => Middlewares
-  }),
-
-  io:format("Admin HTTP server started on port ~p~n", [Port]).

src/config/vm.args

@@ -1,3 +1,3 @@
--sname ${NODE_NAME}
+-name ${NODE_NAME}
 -setcookie ${RELEASE_COOKIE}
 -kernel inet_dist_use_interface {0,0,0,0}

src/eventhub_app.erl

@@ -12,6 +12,7 @@ start(_StartType, _StartArgs) ->
     {ok, Pid} ->
       ok = infra_mnesia:init_tables(),
       ok = infra_mnesia:wait_for_tables(),
+      connect_nodes(),
       start_http(),
       start_admin_http(),
       % Запускаем сборщик метрик Prometheus
@@ -126,4 +127,18 @@ start_admin_http() ->
     env => #{dispatch => AdminWsDispatch}
   }),
 
-  io:format("WebSocket started on ports 8081 (user) and 8446 (admin)~n").
+  io:format("WebSocket started on ports 8081 (user) and 8446 (admin)~n").
+
+connect_nodes() ->
+  case os:getenv("JOIN_NODES") of
+    false -> ok;
+    NodesStr ->
+      Nodes = [list_to_atom(string:trim(N)) || N <- string:tokens(NodesStr, ",")],
+      lists:foreach(fun(Node) ->
+        case net_kernel:connect_node(Node) of
+          true  -> io:format("Connected to ~s~n", [Node]);
+          false -> io:format("ERROR: Failed to connect to ~s~n", [Node]);
+          ignored -> ok
+        end
+                    end, Nodes)
+  end.