Add docs

Add documents to document roles and jobs and a job to test these.

These are not published yet since I don't know where to publish them
currently. Let's add them so that we can ensure that no breakage is
introduced.

Change-Id: I013ab998aba182a29ff4345c975b332406b1a197

README.rst

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+OpenDev Base Jobs
+=================
+
+This repo contains a set of Zuul jobs and Ansible roles suitable for
+use by any OpenDev project.

doc/source/conf.py

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+# -*- coding: utf-8 -*-
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# -- General configuration ----------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
+extensions = [
+    # 'sphinx.ext.autodoc',
+    # 'sphinx.ext.intersphinx',
+    'zuul_sphinx',
+]
+
+# autodoc generation is a bit aggressive and a nuisance when doing heavy
+# text edit cycles.
+# execute "export SPHINX_DEBUG=1" in your terminal to disable
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'base-jobs'
+copyright = u'2019, Zuul contributors'
+
+# If true, '()' will be appended to :func: etc. cross-reference text.
+add_function_parentheses = True
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+add_module_names = True
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# -- Options for HTML output --------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  Major themes that come with
+# Sphinx are currently 'default' and 'sphinxdoc'.
+# html_theme_path = ["."]
+# html_theme = '_theme'
+# html_static_path = ['static']
+
+# Output file base name for HTML help builder.
+htmlhelp_basename = '%sdoc' % project
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title, author, documentclass
+# [howto/manual]).
+latex_documents = [
+    ('index',
+     '%s.tex' % project,
+     u'%s Documentation' % project,
+     u'OpenStack Foundation', 'manual'),
+]
+
+# Example configuration for intersphinx: refer to the Python standard library.
+# intersphinx_mapping = {'http://docs.python.org/': None}
+
+# The name of an image file (relative to this directory) to place at the top
+# of the sidebar.
+# html_logo = '_static/logo.svg'
+
+# The name of an image file (within the static path) to use as favicon of the
+# docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
+# pixels large.
+#html_favicon = None
+
+# Add any paths that contain custom static files (such as style sheets) here,
+# relative to this directory. They are copied after the builtin static files,
+# so a file named "default.css" will overwrite the builtin "default.css".
+# html_static_path = ['_static']

doc/source/index.rst

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+.. include:: ../../README.rst
+
+.. toctree::
+   :maxdepth: 1
+
+   jobs
+   roles
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`search`

doc/source/jobs.rst

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+Jobs
+=====
+
+.. zuul:autojobs::
+

doc/source/roles.rst

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+Roles
+=====
+
+.. zuul:autoroles::

zuul.yaml

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       - site_logs
 
 - project:
+    templates:
+      - build-tox-docs
     check:
       jobs:
         - openstack-zuul-jobs-linters