[api-ref] configure LogABug feature

To report a bug into the glance project, not default openstack-manuals.

Change-Id: Icb757e40e32f3a3e8b17a1eaf8494894114ae173

api-ref/source/conf.py

@@ -108,6 +108,15 @@ show_authors = False
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
 
+# Config logABug feature
+# source tree
+giturl = (
+    u'http://git.openstack.org/cgit/openstack/glance/tree/api-ref/source')
+# html_context allows us to pass arbitrary values into the html template
+html_context = {'bug_tag': 'api-ref',
+                'giturl': giturl,
+                'bug_project': 'glance'}
+
 # -- Options for man page output ----------------------------------------------
 
 # Grouping the document tree for man pages.