Add registry auth header to inspect_distribution requests

Update docstring for auth_config parameter in pull, push, and
inspect_distribution
Signed-off-by: Joffrey F <joffrey@docker.com>

docker/api/image.py

@@ -247,12 +247,15 @@ class ImageApiMixin(object):
 
     @utils.minimum_version('1.30')
     @utils.check_resource('image')
-    def inspect_distribution(self, image):
+    def inspect_distribution(self, image, auth_config=None):
         """
         Get image digest and platform information by contacting the registry.
 
         Args:
             image (str): The image name to inspect
+            auth_config (dict): Override the credentials that are found in the
+                config for this request.  ``auth_config`` should contain the
+                ``username`` and ``password`` keys to be valid.
 
         Returns:
             (dict): A dict containing distribution data
@@ -261,9 +264,21 @@ class ImageApiMixin(object):
             :py:class:`docker.errors.APIError`
                 If the server returns an error.
         """
+        registry, _ = auth.resolve_repository_name(image)
+
+        headers = {}
+        if auth_config is None:
+            header = auth.get_config_header(self, registry)
+            if header:
+                headers['X-Registry-Auth'] = header
+        else:
+            log.debug('Sending supplied auth config')
+            headers['X-Registry-Auth'] = auth.encode_header(auth_config)
+
+        url = self._url("/distribution/{0}/json", image)
 
         return self._result(
-            self._get(self._url("/distribution/{0}/json", image)), True
+            self._get(url, headers=headers), True
         )
 
     def load_image(self, data, quiet=None):
@@ -336,10 +351,9 @@ class ImageApiMixin(object):
             tag (str): The tag to pull
             stream (bool): Stream the output as a generator. Make sure to
                 consume the generator, otherwise pull might get cancelled.
-            auth_config (dict): Override the credentials that
-                :py:meth:`~docker.api.daemon.DaemonApiMixin.login` has set for
-                this request. ``auth_config`` should contain the ``username``
-                and ``password`` keys to be valid.
+            auth_config (dict): Override the credentials that are found in the
+                config for this request.  ``auth_config`` should contain the
+                ``username`` and ``password`` keys to be valid.
             decode (bool): Decode the JSON data from the server into dicts.
                 Only applies with ``stream=True``
             platform (str): Platform in the format ``os[/arch[/variant]]``
@@ -414,10 +428,9 @@ class ImageApiMixin(object):
             repository (str): The repository to push to
             tag (str): An optional tag to push
             stream (bool): Stream the output as a blocking generator
-            auth_config (dict): Override the credentials that
-                :py:meth:`~docker.api.daemon.DaemonApiMixin.login` has set for
-                this request. ``auth_config`` should contain the ``username``
-                and ``password`` keys to be valid.
+            auth_config (dict): Override the credentials that are found in the
+                config for this request.  ``auth_config`` should contain the
+                ``username`` and ``password`` keys to be valid.
             decode (bool): Decode the JSON data from the server into dicts.
                 Only applies with ``stream=True``
 

docker/models/images.py

@@ -315,22 +315,26 @@ class ImageCollection(Collection):
         """
         return self.prepare_model(self.client.api.inspect_image(name))
 
-    def get_registry_data(self, name):
+    def get_registry_data(self, name, auth_config=None):
         """
         Gets the registry data for an image.
 
         Args:
             name (str): The name of the image.
+            auth_config (dict): Override the credentials that are found in the
+                config for this request.  ``auth_config`` should contain the
+                ``username`` and ``password`` keys to be valid.
 
         Returns:
             (:py:class:`RegistryData`): The data object.
+
         Raises:
             :py:class:`docker.errors.APIError`
                 If the server returns an error.
         """
         return RegistryData(
             image_name=name,
-            attrs=self.client.api.inspect_distribution(name),
+            attrs=self.client.api.inspect_distribution(name, auth_config),
             client=self.client,
             collection=self,
         )
@@ -404,10 +408,9 @@ class ImageCollection(Collection):
         Args:
             repository (str): The repository to pull
             tag (str): The tag to pull
-            auth_config (dict): Override the credentials that
-                :py:meth:`~docker.client.DockerClient.login` has set for
-                this request. ``auth_config`` should contain the ``username``
-                and ``password`` keys to be valid.
+            auth_config (dict): Override the credentials that are found in the
+                config for this request.  ``auth_config`` should contain the
+                ``username`` and ``password`` keys to be valid.
             platform (str): Platform in the format ``os[/arch[/variant]]``
 
         Returns: