From 036eca5303bd80a9bc0e68829ff5eb42e4be5f59 Mon Sep 17 00:00:00 2001
From: javalladares <javalladares@google.com>
Date: Thu, 21 Dec 2023 23:39:11 +0000
Subject: [PATCH] Fix issue #1441

Simplifying thoubleshooting by capturing last seen exception
to set is as the direct cause of the `exceptions.TransportError`
---
 google/auth/compute_engine/_metadata.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/google/auth/compute_engine/_metadata.py b/google/auth/compute_engine/_metadata.py
index 1c884c3c4..aedd45220 100644
--- a/google/auth/compute_engine/_metadata.py
+++ b/google/auth/compute_engine/_metadata.py
@@ -199,6 +199,7 @@ def get(
     url = _helpers.update_query(base_url, query_params)
 
     retries = 0
+    last_exception = None
     while retries < retry_count:
         try:
             response = request(url=url, method="GET", headers=headers_to_use)
@@ -213,11 +214,12 @@ def get(
                 e,
             )
             retries += 1
+            last_exception = e
     else:
         raise exceptions.TransportError(
             "Failed to retrieve {} from the Google Compute Engine "
             "metadata service. Compute Engine Metadata server unavailable".format(url)
-        )
+        ) from last_exception
 
     content = _helpers.from_bytes(response.data)