Switch to newer openstackdocstheme and reno versions

Switch to openstackdocstheme 2.2.1 and reno 3.1.0 versions. Using
these versions will allow especially:
* Linking from HTML to PDF document
* Allow parallel building of documents
* Fix some rendering problems

Update Sphinx version as well.

Change pygments_style to 'native' since old theme version always used
'native' and the theme now respects the setting and using 'sphinx' can
lead to some strange rendering.

openstackdocstheme renames some variables, so follow the renames
before the next release removes them. A couple of variables are also
not needed anymore, remove them.

See also
http://lists.openstack.org/pipermail/openstack-discuss/2020-May/014971.html

Change-Id: Id712703a2472b16e3c07ce2f9e4675cf81aaf22e

doc/requirements.txt

@@ -4,6 +4,6 @@
 
 # this is required for the docs build jobs
 sphinx>=2.0.0,!=2.1.0 # BSD
-openstackdocstheme>=2.0.0 # Apache-2.0
-reno>=2.5.0 # Apache-2.0
+openstackdocstheme>=2.2.1 # Apache-2.0
+reno>=3.1.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0

doc/source/conf.py

@@ -65,9 +65,9 @@ target_name = 'ansible-role' + role_name
 title = 'OpenStack-Ansible Documentation: ' + role_name + 'role'
 
 # openstackdocstheme options
-repository_name = 'openstack/' + target_name
-bug_project = project.lower()
-bug_tag = ''
+openstackdocs_repo_name = 'openstack/' + target_name
+openstackdocs_bug_project = project.lower()
+openstackdocs_bug_tag = ''
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

releasenotes/source/conf.py

@@ -58,8 +58,8 @@ category = 'Miscellaneous'
 copyright = '2014-2016, OpenStack-Ansible Contributors'
 description = 'OpenStack-Ansible deploys OpenStack environments using Ansible.'
 project = 'OpenStack-Ansible'
-role_name = 'rabbitmq_server'
-target_name = 'openstack-ansible-' + role_name
+role_name = 'qdrouterd'
+target_name = 'ansible-role-' + role_name
 title = 'OpenStack-Ansible Release Notes: ' + role_name + 'role'
 
 # Release notes do not need a version number in the title, they
@@ -70,9 +70,9 @@ release = ''
 version = ''
 
 # openstackdocstheme options
-repository_name = 'openstack/' + target_name
-bug_project = project.lower()
-bug_tag = ''
+openstackdocs_repo_name = 'openstack/' + target_name
+openstackdocs_bug_project = project.lower()
+openstackdocs_bug_tag = ''
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.