Get tasks associated with image

Add support to get tasks associated with specific image.
bp: messages-api

Change-Id: Ia505cf6f47ca6c628e195be3ca5231d22d53040d

2 files changed, 37 insertions, 0 deletions

diff --git a/glanceclient/v2/images.py b/glanceclient/v2/images.py
index 341485d..b412c42 100644
--- a/glanceclient/v2/images.py
+++ b/glanceclient/v2/images.py
@@ -197,6 +197,25 @@ class Controller(object):
         return self._get(image_id)
 
     @utils.add_req_id_to_object()
+    def get_associated_image_tasks(self, image_id):
+        """Get the tasks associated with an image.
+
+        :param image_id: ID of the image
+        :raises: exc.HTTPNotImplemented if Glance is not new enough to support
+                 this API (v2.12).
+        """
+        # NOTE (abhishekk): Verify that /v2i/images/%s/tasks is supported by
+        # glance
+        if utils.has_version(self.http_client, 'v2.12'):
+            url = '/v2/images/%s/tasks' % image_id
+            resp, body = self.http_client.get(url)
+            body.pop('self', None)
+            return body, resp
+        else:
+            raise exc.HTTPNotImplemented(
+                'This operation is not supported by Glance.')
+
+    @utils.add_req_id_to_object()
     def data(self, image_id, do_checksum=True, allow_md5_fallback=False):
         """Retrieve data of an image.
 
diff --git a/glanceclient/v2/shell.py b/glanceclient/v2/shell.py
index 592b2da..c38d046 100644
--- a/glanceclient/v2/shell.py
+++ b/glanceclient/v2/shell.py
@@ -468,6 +468,24 @@ def do_image_show(gc, args):
     utils.print_image(image, args.human_readable, int(args.max_column_width))
 
 
+@utils.arg('id', metavar='<IMAGE_ID>', help=_('ID of image to get tasks.'))
+def do_image_tasks(gc, args):
+    """Get tasks associated with image"""
+    columns = ['Message', 'Status', 'Updated at']
+    if args.verbose:
+        columns_to_prepend = ['Image Id', 'Task Id']
+        columns_to_extend = ['User Id', 'Request Id',
+                             'Result', 'Owner', 'Input', 'Expires at']
+        columns = columns_to_prepend + columns + columns_to_extend
+    try:
+        tasks = gc.images.get_associated_image_tasks(args.id)
+        utils.print_dict_list(tasks['tasks'], columns)
+    except exc.HTTPNotFound:
+        utils.exit('Image %s not found.' % args.id)
+    except exc.HTTPNotImplemented:
+        utils.exit('Server does not support image tasks API (v2.12)')
+
+
 @utils.arg('--image-id', metavar='<IMAGE_ID>', required=True,
            help=_('Image to display members of.'))
 def do_member_list(gc, args):