gnb: udp metrics

Author: asaezper

apps/gnb/gnb.cpp

@@ -383,7 +383,7 @@ int main(int argc, char** argv)
 
   // Set up the JSON log channel used by metrics.
   srslog::sink& json_sink =
-      srslog::fetch_udp_sink("127.0.0.1", 10000, srslog::create_json_formatter());
+      srslog::fetch_udp_sink(gnb_cfg.metrics_cfg.addr, gnb_cfg.metrics_cfg.port, srslog::create_json_formatter());
   srslog::log_channel& json_channel = srslog::fetch_log_channel("JSON_channel", json_sink, {});
   json_channel.set_enabled(gnb_cfg.metrics_cfg.enable_json_metrics);
 

apps/gnb/gnb_appconfig.h

@@ -790,7 +790,8 @@ struct metrics_appconfig {
   unsigned cu_up_statistics_report_period = 1; // Statistics report period in seconds
   /// JSON metrics reporting.
   bool        enable_json_metrics      = false;
-  std::string json_filename            = "/tmp/gnb_metrics.json";
+  std::string addr                     = "127.0.0.1";
+  uint16_t    port                     = 55555;
   bool        autostart_stdout_metrics = false;
 };
 

apps/gnb/gnb_appconfig_cli11_schema.cpp

@@ -198,8 +198,10 @@ static void configure_cli11_metrics_args(CLI::App& app, metrics_appconfig& metri
 
   app.add_option("--enable_json_metrics", metrics_params.enable_json_metrics, "Enable JSON metrics reporting")
       ->always_capture_default();
-  app.add_option("--json_metrics_filename", metrics_params.json_filename, "JSON metrics output path")
-      ->capture_default_str();
+
+  app.add_option("--addr", metrics_params.addr, "Metrics address.")->capture_default_str();
+  app.add_option("--port", metrics_params.port, "Metrics UDP port.")->capture_default_str();
+
   app.add_option(
          "--autostart_stdout_metrics", metrics_params.autostart_stdout_metrics, "Autostart stdout metrics reporting")
       ->capture_default_str();