Update docs building

Update docs building:
* Switch to sphinx-build, fix build problem
* Update requirements for Sphinx and openstackdocstheme for
  python 3
* Remove unneeded doc sections from setup.cfg

Change-Id: Ib36a271e9a8704f96920bb00573775fb22f33f08

doc/requirements.txt

@@ -1,4 +1,3 @@
-sphinx>=1.8.0,<2.0.0;python_version=='2.7' # BSD
-sphinx>=1.8.0,!=2.1.0;python_version>='3.4' # BSD
-openstackdocstheme>=1.30.0 # Apache-2.0
+sphinx>=2.0.0,!=2.1.0 # BSD
+openstackdocstheme>=2.0.0 # Apache-2.0
 texttable

doc/source/getting-started.rst

@@ -1,4 +1,4 @@
-.. _node-configuration:
+.. _getting_started:
 
 Getting started with TripleO-Quickstart
 =======================================

setup.cfg

@@ -14,15 +14,6 @@ classifier =
   Intended Audience :: Information Technology
   Topic :: Utilities
 
-[build_sphinx]
-all_files = 1
-build-dir = doc/build
-source-dir = doc/source
-
-[global]
-setup-hooks =
-    pbr.hooks.setup_hook
-
 [files]
 data_files =
     usr/local/share/tripleo-quickstart/roles = roles/*
@@ -31,9 +22,6 @@ data_files =
     playbooks = playbooks/*
     config/ = config/*
 
-[wheel]
-universal = 1
-
 [pbr]
 skip_authors = True
 skip_changelog = True

test-requirements.txt

@@ -1,7 +1,7 @@
-openstackdocstheme>=1.11.0  # Apache-2.0
+openstackdocstheme>=2.0.0 # Apache-2.0
 
 docutils>=0.11
-sphinx>=1.6.2 # BSD
+sphinx>=2.0.0,!=2.1.0 # BSD
 reno>=1.8.0  # Apache-2.0
 pre-commit # MIT
 texttable

tox.ini

@@ -49,7 +49,7 @@ basepython = python3
 deps = -r{toxinidir}/doc/requirements.txt
 commands =
     bash -c 'python fs-matrix.py > doc/source/feature-configuration-generated.rst'
-    python setup.py build_sphinx
+    sphinx-build -W -b html doc/source doc/build/html
 
 [testenv:bashate]
 envdir = {toxworkdir}/linters