Use the URL scheme and use the host in the other discovery url.

endpoints/api/discovery.py

@@ -23,6 +23,9 @@ TYPE_CONVERTER = {
   int: 'integer',
 }
 
+URL_SCHEME = app.config['URL_SCHEME']
+URL_HOST = app.config['URL_HOST']
+
 
 def fully_qualified_name(method_view_class):
   inst = method_view_class()
@@ -140,7 +143,7 @@ def swagger_route_data(include_internal=False, compact=False):
   swagger_data = {
     'apiVersion': 'v1',
     'swaggerVersion': '1.2',
-    'basePath': 'http://localhost:5000',
+    'basePath': '%s://%s' % (URL_SCHEME, URL_HOST),
     'resourcePath': '/',
     'info': {
       'title': 'Quay.io API',
@@ -157,7 +160,7 @@ def swagger_route_data(include_internal=False, compact=False):
           "implicit": {
             "tokenName": "access_token",
             "loginEndpoint": {
-              "url": "http://%s/oauth/authorize" % app.config['URL_HOST'],
+              "url": "%s://%s/oauth/authorize" % (URL_SCHEME, URL_HOST),
             },
           },
         },