From 3aa840d0d83ec327298be03e28fa5e4c7bd24a92 Mon Sep 17 00:00:00 2001
From: Garry Shutler <garry@cronofy.com>
Date: Mon, 29 Mar 2021 11:54:38 +0100
Subject: [PATCH] Check metadata response code

Avoids an error in some regions where no response body is provided when
IMDS access is disabled.
---
 pkg/aws/util.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/pkg/aws/util.go b/pkg/aws/util.go
index 7bd8a1b..5dc2af8 100644
--- a/pkg/aws/util.go
+++ b/pkg/aws/util.go
@@ -18,8 +18,13 @@ func GetLocalRegion() string {
 		klog.Errorf("unable to get current region information, %v", err)
 		return ""
 	}
-
 	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		klog.Errorf("unable to get current region information, status code %v", resp.StatusCode)
+		return ""
+	}
+
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		klog.Errorf("cannot read response from instance metadata, %v", err)