From ee085f7ae8421bfe72bc07da8305f5dd7909dd02 Mon Sep 17 00:00:00 2001
From: Alejandro Pedraza <alejandro@buoyant.io>
Date: Thu, 29 Oct 2020 16:38:41 -0500
Subject: [PATCH] Fix multicluster for EKS (#5159)

`linkerd mc link` wasn't properly setting the `gatewayAddresses` field
when such address had a `Hostname` field instead of `Ip`, like is the
case in EKS services of type LoadBalancer.
---
 cli/cmd/multicluster.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/cli/cmd/multicluster.go b/cli/cmd/multicluster.go
index d872271f0..6b0958077 100644
--- a/cli/cmd/multicluster.go
+++ b/cli/cmd/multicluster.go
@@ -617,7 +617,14 @@ func newLinkCommand() *cobra.Command {
 
 			gatewayAddresses := []string{}
 			for _, ingress := range gateway.Status.LoadBalancer.Ingress {
-				gatewayAddresses = append(gatewayAddresses, ingress.IP)
+				addr := ingress.IP
+				if addr == "" {
+					addr = ingress.Hostname
+				}
+				if addr == "" {
+					continue
+				}
+				gatewayAddresses = append(gatewayAddresses, addr)
 			}
 			if len(gatewayAddresses) == 0 {
 				return fmt.Errorf("Gateway %s.%s has no ingress addresses", gateway.Name, gateway.Namespace)