listen.patch

diff -uraN a/tensorflow_serving/util/net_http/server/internal/evhttp_server.cc b/tensorflow_serving/util/net_http/server/internal/evhttp_server.cc
--- a/tensorflow_serving/util/net_http/server/internal/evhttp_server.cc	2020-10-22 08:44:39.000000000 +0000
+++ b/tensorflow_serving/util/net_http/server/internal/evhttp_server.cc	2020-10-23 09:54:03.911295393 +0000
@@ -215,13 +215,14 @@
   }
 
   const int port = server_options_->ports().front();
+  const std::string address = server_options_->address();
 
   // "::"  =>  in6addr_any
   ev_uint16_t ev_port = static_cast<ev_uint16_t>(port);
-  ev_listener_ = evhttp_bind_socket_with_handle(ev_http_, "::", ev_port);
+  ev_listener_ = evhttp_bind_socket_with_handle(ev_http_, address.c_str(), ev_port);
   if (ev_listener_ == nullptr) {
     // in case ipv6 is not supported, fallback to inaddr_any
-    ev_listener_ = evhttp_bind_socket_with_handle(ev_http_, nullptr, ev_port);
+    ev_listener_ = evhttp_bind_socket_with_handle(ev_http_, address.c_str(), ev_port);
     if (ev_listener_ == nullptr) {
       NET_LOG(ERROR, "Couldn't bind to port %d", port);
       return false;
diff -uraN a/tensorflow_serving/util/net_http/server/public/httpserver_interface.h b/tensorflow_serving/util/net_http/server/public/httpserver_interface.h
--- a/tensorflow_serving/util/net_http/server/public/httpserver_interface.h	2020-10-22 08:44:39.000000000 +0000
+++ b/tensorflow_serving/util/net_http/server/public/httpserver_interface.h	2020-10-23 10:25:10.170275251 +0000
@@ -61,6 +61,17 @@
     ports_.emplace_back(port);
   }
 
+  void SetAddress(const std::string& address) {
+	address_ = address;
+  }
+
+  std::string address() {
+	if(address_ == "") {
+		return "0.0.0.0";
+	}
+	return address_;
+  }
+
   // The default executor for running I/O event polling.
   // This is a mandatory option.
   void SetExecutor(std::unique_ptr<EventExecutor> executor) {
@@ -74,6 +85,7 @@
  private:
   std::vector<int> ports_;
   std::unique_ptr<EventExecutor> executor_;
+  std::string address_;
 };
 
 // Options to specify when registering a handler (given a uri pattern).