[Core] Allow to pass node ip address to gcs server. (#10946)

* Allow to pass node ip address to gcs server.

* Fix.

* Addressed code review.

* Fixed an error.

* Addressed code review.

src/ray/gcs/gcs_server/gcs_server.cc

@@ -252,11 +252,13 @@ std::unique_ptr<GcsObjectManager> GcsServer::InitObjectManager() {
 }
 
 void GcsServer::StoreGcsServerAddressInRedis() {
-  std::string address =
-      GetValidLocalIp(
-          GetPort(),
-          RayConfig::instance().internal_gcs_service_connect_wait_milliseconds()) +
-      ":" + std::to_string(GetPort());
+  std::string ip = config_.node_ip_address;
+  if (ip.empty()) {
+    ip = GetValidLocalIp(
+        GetPort(),
+        RayConfig::instance().internal_gcs_service_connect_wait_milliseconds());
+  }
+  std::string address = ip + ":" + std::to_string(GetPort());
   RAY_LOG(INFO) << "Gcs server address = " << address;
 
   RAY_CHECK_OK(redis_gcs_client_->primary_context()->RunArgvAsync(

src/ray/gcs/gcs_server/gcs_server.h

@@ -34,6 +34,7 @@ struct GcsServerConfig {
   uint16_t redis_port = 6379;
   bool retry_redis = true;
   bool is_test = false;
+  std::string node_ip_address;
 };
 
 class GcsNodeManager;

src/ray/gcs/gcs_server/gcs_server_main.cc

@@ -27,6 +27,7 @@ DEFINE_int32(metrics_agent_port, -1, "The port of metrics agent.");
 DEFINE_string(config_list, "", "The config list of raylet.");
 DEFINE_string(redis_password, "", "The password of redis.");
 DEFINE_bool(retry_redis, false, "Whether we retry to connect to the redis.");
+DEFINE_string(node_ip_address, "", "The ip address of the node.");
 
 int main(int argc, char *argv[]) {
   InitShutdownRAII ray_log_shutdown_raii(ray::RayLog::StartRayLog,
@@ -42,6 +43,7 @@ int main(int argc, char *argv[]) {
   const std::string config_list = FLAGS_config_list;
   const std::string redis_password = FLAGS_redis_password;
   const bool retry_redis = FLAGS_retry_redis;
+  const std::string node_ip_address = FLAGS_node_ip_address;
   gflags::ShutDownCommandLineFlags();
 
   std::unordered_map<std::string, std::string> config_map;
@@ -75,6 +77,7 @@ int main(int argc, char *argv[]) {
   gcs_server_config.redis_port = redis_port;
   gcs_server_config.redis_password = redis_password;
   gcs_server_config.retry_redis = retry_redis;
+  gcs_server_config.node_ip_address = node_ip_address;
   ray::gcs::GcsServer gcs_server(gcs_server_config, main_service);
 
   // Destroy the GCS server on a SIGTERM. The pointer to main_service is