From 9d6ffa70677c4dbf23f6ed569676206c4e2edff4 Mon Sep 17 00:00:00 2001
From: "update-envoy[bot]"
 <135279899+update-envoy[bot]@users.noreply.github.com>
Date: Fri, 1 Sep 2023 06:46:28 +0000
Subject: [PATCH] Happy Eyeballs for EDS clusters (#27881)

Signed-off-by: pcrao <pcrao@google.com>

Mirrored from https://github.com/envoyproxy/envoy @ 652d23db03fcf90ecd36a24293fc02dc3a2a07bd
---
 envoy/config/endpoint/v3/endpoint_components.proto | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/envoy/config/endpoint/v3/endpoint_components.proto b/envoy/config/endpoint/v3/endpoint_components.proto
index 247f2a50..62598f5d 100644
--- a/envoy/config/endpoint/v3/endpoint_components.proto
+++ b/envoy/config/endpoint/v3/endpoint_components.proto
@@ -57,6 +57,11 @@ message Endpoint {
     bool disable_active_health_check = 4;
   }
 
+  message AdditionalAddress {
+    // Additional address that is associated with the endpoint.
+    core.v3.Address address = 1;
+  }
+
   // The upstream host address.
   //
   // .. attention::
@@ -82,6 +87,13 @@ message Endpoint {
   // that require a hostname, like
   // :ref:`auto_host_rewrite <envoy_v3_api_field_config.route.v3.RouteAction.auto_host_rewrite>`.
   string hostname = 3;
+
+  // An ordered list of addresses that together with `address` comprise the
+  // list of addresses for an endpoint. The address given in the `address` is
+  // prepended to this list. It is assumed that the list must already be
+  // sorted by preference order of the addresses. This will only be supported
+  // for STATIC and EDS clusters.
+  repeated AdditionalAddress additional_addresses = 4;
 }
 
 // An Endpoint that Envoy can route traffic to.