Update /ok to serve dual health check/benchmarking role

src/main.cpp

@@ -252,12 +252,14 @@ int main(int argc, char *argv[]) {
   std::cout << "Keepalive interval: "
             << config->subscription.keepalive_interval.count() << " seconds"
             << std::endl;
+  std::cout << "Health check resolve iterations: "
+            << config->benchmark.ok_resolve_iterations << std::endl;
 
   // Create listen sockets
   std::vector<int> listen_fds = create_listen_sockets(*config);
 
   // Create handler and server
-  HttpHandler http_handler;
+  HttpHandler http_handler(*config);
   auto server = Server::create(*config, http_handler, listen_fds);
   g_server = server.get();