Make sure all rhcos arch builds are complete

doozerlib/rhcos.py

@@ -167,9 +167,19 @@ def _latest_rhcos_build_id(self) -> Optional[str]:
 
         if not data["builds"]:
             return None
-        build = data["builds"][0]
-        # old schema just had the id as a string; newer has it in a dict
-        return build if isinstance(build, str) else build["id"]
+
+        multi_url = self.runtime.group_config.urls.rhcos_release_base["multi"]
+        build_id = None
+        if multi_url:
+            # Make sure all rhcos arch builds are complete
+            arches_building = self.runtime.group_config.arches
+            for b in data["builds"]:
+                if len(b["arches"]) == len(arches_building):
+                    build_id = b["id"]
+                    break
+        else:
+            build_id = data["builds"][0]["id"]
+        return build_id
 
     @retry(reraise=True, stop=stop_after_attempt(10), wait=wait_fixed(3))
     def rhcos_build_meta(self, build_id: str, meta_type: str = "meta") -> Dict:

tests/test_rhcos.py

@@ -69,14 +69,23 @@ def test_release_url(self):
 
     @patch('urllib.request.urlopen')
     def test_build_id(self, mock_urlopen):
-        _urlopen_json_cm(mock_urlopen, dict(builds=['id-1', 'id-2']))
+        builds = [{'id': 'id-1'}, {'id': 'id-2'}]
+        _urlopen_json_cm(mock_urlopen, dict(builds=builds))
         self.assertEqual('id-1', rhcos.RHCOSBuildFinder(self.runtime, "4.4")._latest_rhcos_build_id())
         self.assertIn('/rhcos-4.4/', mock_urlopen.call_args_list[0][0][0])
 
         _urlopen_json_cm(mock_urlopen, dict(builds=[]))
         self.assertIsNone(rhcos.RHCOSBuildFinder(self.runtime, "4.2", "ppc64le")._latest_rhcos_build_id())
         self.assertIn('/rhcos-4.2-ppc64le/', mock_urlopen.call_args_list[1][0][0])
 
+    @patch('urllib.request.urlopen')
+    def test_build_id_multi(self, mock_urlopen):
+        builds = [{'id': 'id-1', 'arches': ['arch1', 'arch2']}, {'id': 'id-2', 'arches': ['arch1', 'arch2', 'arch3']}]
+        _urlopen_json_cm(mock_urlopen, dict(builds=builds))
+        self.runtime.group_config.urls = Model(dict(rhcos_release_base=dict(multi='some_url')))
+        self.runtime.group_config.arches = ['arch1', 'arch2', 'arch3']
+        self.assertEqual('id-2', rhcos.RHCOSBuildFinder(self.runtime, "4.4")._latest_rhcos_build_id())
+
     @patch('urllib.request.urlopen')
     def test_build_find_failure(self, mock_urlopen):
         mock_urlopen.side_effect = URLError("test")