[Doc] OpenStack API Reference Guide

Baseline changes to comply with OpenStack API documentation
from OpenStack Documentation Contributor Guide [0]:

- [1] How to document your OpenStack API service

[0] https://docs.openstack.org/doc-contrib-guide
[1] https://docs.openstack.org/doc-contrib-guide/api-guides.html

Story: 2002712
Task: 26621

Change-Id: Ie2bc6b177a8cdff1c844696b89f954cead76e830
Signed-off-by: Abraham Arce <abraham.arce.moreno@intel.com>

.gitignore

@@ -49,6 +49,9 @@ doc/build
 # Release Notes documentation
 releasenotes/build
 
+# Api Ref documentation
+api-ref/build/
+
 # pbr generates these
 AUTHORS
 ChangeLog

api-ref/source/conf.py

@@ -0,0 +1,75 @@
+# 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.
+#
+# stx-distcloud API reference documentation build configuration file
+#
+# This file is execfile()d with the current directory set to
+# its containing dir.
+#
+# Note that not all possible configuration values are present in this
+# autogenerated file.
+#
+# All configuration values have a default; values that are commented out
+# serve to show the default.
+
+import os
+import sys
+
+extensions = [
+    'openstackdocstheme',
+    'os_api_ref',
+]
+
+html_theme = 'openstackdocs'
+
+html_theme_options = {
+    "sidebar_dropdown": "api_ref",
+    "sidebar_mode": "toc",
+}
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+sys.path.insert(0, os.path.abspath('../../'))
+sys.path.insert(0, os.path.abspath('../'))
+sys.path.insert(0, os.path.abspath('./'))
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+repository_name = 'openstack/stx-distcloud'
+project = u'stx-distcloud'
+bug_project = 'starlingx'
+bug_tag = 'stx.distcloud'
+
+# If true, the current module name will be prepended to all description
+# unit titles (such as .. function::).
+add_module_names = False
+
+# If true, sectionauthor and moduleauthor directives will be shown in the
+# output. They are ignored by default.
+show_authors = False
+
+# The name of the Pygments (syntax highlighting) style to use.
+pygments_style = 'sphinx'
+
+# Grouping the document tree into LaTeX files. List of tuples
+# (source start file, target name, title, author, documentclass
+# [howto/manual]).
+latex_documents = [
+    ('index', 'stx-distcloud.tex', u'stx-distcloud API Documentation',
+     u'StarlingX', 'manual'),
+]

api-ref/source/index.rst

@@ -0,0 +1,8 @@
+===========================
+stx-distcloud API Reference
+===========================
+
+StarlingX Distributed Cloud
+
+.. toctree::
+   :maxdepth: 2

doc/requirements.txt

@@ -3,3 +3,6 @@ openstackdocstheme>=1.19.0 # Apache-2.0
 
 # Release Notes documentation
 reno>=0.1.1 # Apache2
+
+# Api Ref documentation
+os-api-ref>=1.4.0 # Apache-2.0

tox.ini

@@ -89,6 +89,15 @@ envdir = {toxworkdir}/releasenotes
 deps = -r{toxinidir}/doc/requirements.txt
 commands = reno new {posargs}
 
+[testenv:api-ref]
+basepython = python3
+deps =
+    -r{toxinidir}/doc/requirements.txt
+commands =
+  rm -rf api-ref/build
+  sphinx-build -W -b html -d api-ref/build/doctrees api-ref/source api-ref/build/html
+whitelist_externals = rm
+
 [testenv:debug]
 commands = oslo_debug_helper {posargs}