Cleanup py27 support

Make a few cleanups:
- Remove python 2.7 stanza from setup.py
- Remove obsolete sections from setup.cfg
- Update requirements, no need for python_version anymore
- Cleanup doc/source/conf.py to remove now obsolete content.
- Use newer openstackdocstheme version
- Cleanup tox.ini for Python 3 only

Change-Id: I9d63e63cf142fded002f7212588266d88f41dd06

doc/source/conf.py

@@ -64,11 +64,6 @@ role_name = 'tests'
 target_name = 'openstack-ansible-' + role_name
 title = 'OpenStack-Ansible Documentation: ' + role_name + 'role'
 
-# The link to the browsable source code (for the left hand menu)
-oslosphinx_cgit_link = (
-    "https://opendev.org/openstack/{}".format(target_name)
-)
-
 # openstackdocstheme options
 repository_name = 'openstack/' + target_name
 bug_project = 'openstack-ansible'

setup.cfg

@@ -11,14 +11,3 @@ classifier =
     Intended Audience :: System Administrators
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
-
-[build_sphinx]
-all_files = 1
-build-dir = doc/build
-source-dir = doc/source
-
-[pbr]
-warnerrors = True
-
-[wheel]
-universal = 1

setup.py

@@ -13,17 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
 import setuptools
 
-# In python < 2.7.4, a lazy loading of package `pbr` will break
-# setuptools if some other modules registered functions in `atexit`.
-# solution from: http://bugs.python.org/issue15881#msg170215
-try:
-    import multiprocessing  # noqa
-except ImportError:
-    pass
-
 setuptools.setup(
     setup_requires=['pbr>=2.0.0'],
     pbr=True)

sync/doc/requirements.txt

@@ -9,9 +9,8 @@
 # openstack-ansible-tests repository. Once it merges there, the changes will
 # automatically be proposed to all the repositories which use it.
 
-sphinx>=1.8.0,<2.0.0;python_version=='2.7' # BSD
+sphinx>=1.8.0,!=2.1.0  # BSD
-sphinx>=1.8.0,!=2.1.0;python_version>='3.4'  # BSD
 sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD
-openstackdocstheme>=1.20.0 # Apache-2.0
+openstackdocstheme>=1.32.1 # Apache-2.0
 reno>=2.5.0 # Apache-2.0
 doc8>=0.6.0 # Apache-2.0

test-requirements.txt

@@ -26,7 +26,6 @@ ansible-lint==3.4.21 # MIT
 pyasn1!=0.2.3,>=0.1.8 # BSD
 pyOpenSSL>=17.1.0 # Apache-2.0
 requests>=2.14.2 # Apache-2.0
-ndg-httpsclient>=0.4.2;python_version<'3.0' # BSD
 
 # We use this for our own keystone module.
 # TODO(odyssey4me): Remove this once we no

tox.ini

@@ -1,9 +1,10 @@
 [tox]
-minversion = 2.0
+minversion = 3.1
 skipsdist = True
 envlist = docs,linters,func
 
 [testenv]
+basepython = python3
 usedevelop = True
 install_command =
     pip install -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/openstack/requirements/raw/upper-constraints.txt} {opts} {packages}
@@ -26,7 +27,6 @@ setenv =
     WORKING_DIR={toxinidir}
 
 [testenv:docs]
-basepython = python3
 deps = -r{toxinidir}/doc/requirements.txt
 commands =
     bash -c "rm -rf doc/build"
@@ -34,7 +34,6 @@ commands =
     sphinx-build --keep-going -b html doc/source doc/build/html
 
 [testenv:pdf-docs]
-basepython = python3
 deps = {[testenv:docs]deps}
 whitelist_externals =
 commands =
@@ -46,19 +45,16 @@ commands =
 extensions = .rst
 
 [testenv:releasenotes]
-basepython = python3
 deps = -r{toxinidir}/doc/requirements.txt
 commands =
     sphinx-build -a -E -W -d releasenotes/build/doctrees --keep-going -b html releasenotes/source releasenotes/build/html
 
-# environment used by the -infra templated docs job
+# environment used by the -infra templated tarballs job
 [testenv:venv]
-basepython = python3
 commands =
     {posargs}
 
 [testenv:pep8]
-basepython = python3
 commands =
     bash -c "{toxinidir}/tests/common/test-pep8.sh"
 
@@ -69,27 +65,22 @@ commands =
 ignore=F403
 
 [testenv:bashate]
-basepython = python3
 commands =
     bash -c "{toxinidir}/tests/common/test-bashate.sh"
 
 [testenv:ansible-syntax]
-basepython = python3
 commands =
     bash -c "{toxinidir}/tests/common/test-ansible-syntax.sh"
 
 [testenv:ansible-lint]
-basepython = python3
 commands =
     bash -c "{toxinidir}/tests/common/test-ansible-lint.sh"
 
 [testenv:functional]
-basepython = python3
 commands =
     bash -c "{toxinidir}/tests/common/test-ansible-functional.sh"
 
 [testenv:linters]
-basepython = python3
 commands =
     bash -c "{toxinidir}/tests/common/test-ansible-env-prep.sh"
     {[testenv:pep8]commands}