From a77e8b0a59d177eb6942402474b39da3d93f8831 Mon Sep 17 00:00:00 2001
From: Jan Kaluza <jkaluza@redhat.com>
Date: Jul 03 2018 08:41:32 +0000
Subject: Construct the proper Docker API request to get the image manifest.


---

diff --git a/freshmaker/lightblue.py b/freshmaker/lightblue.py
index 732119b..99df80c 100644
--- a/freshmaker/lightblue.py
+++ b/freshmaker/lightblue.py
@@ -33,6 +33,7 @@ import dogpile.cache
 from itertools import groupby
 
 from six.moves import http_client
+from six.moves.urllib.parse import urlparse
 import concurrent.futures
 from freshmaker import log, conf
 from freshmaker.kojiservice import koji_service
@@ -284,6 +285,16 @@ class ContainerImage(dict):
                 "Could not find pull url for Koji build %r %r" % (nvr, digest))
 
         url = registry_urls[0].split(digest)[0].strip('@')
+        # If URL does not contain the scheme, use http as default.
+        if not url.startswith("http"):
+            url = "http://" + url
+        # Construct the proper API requests in
+        # GET /v2/<name>/manifests/<reference> format.
+        parsed_url = urlparse(url)
+        url = "%s://%s/v2/%s/manifests/%s" % (
+            parsed_url.scheme, parsed_url.netloc, parsed_url.path.strip("/"),
+            digest)
+
         response = requests.get(url, headers=dict(Accept=manifest_list))
         if not response.ok:
             raise KojiLookupError(
diff --git a/tests/test_lightblue.py b/tests/test_lightblue.py
index 1d8232e..2c0af27 100644
--- a/tests/test_lightblue.py
+++ b/tests/test_lightblue.py
@@ -1697,7 +1697,9 @@ class TestArchitecturesFromRegistry(helpers.FreshmakerTestCase):
         result = image._get_architectures_from_registry("foo", self.build)
         self.assertEqual(result, 'x86_64,s390x,ppc64le')
         requests.get.assert_called_once_with(
-            'blue-pulp-smocker01.sledmat.com:8888/devtools/rust-toolset-7-rhel7',
+            'http://blue-pulp-smocker01.sledmat.com:8888/v2/devtools/'
+            'rust-toolset-7-rhel7/manifests/'
+            'sha256:252084580dd052fd6d16b5eb25397cf2396c69ec485ba34692577ebd25693fa7',
             headers={'Accept': 'application/vnd.docker.distribution.manifest.list.v2+json'},
         )