Add project documentation

Change-Id: I444677d60cefa169a4102602cd0a8f25fdd92a84

CONTRIBUTING.rst

+If you would like to contribute to the development of OpenStack,
+you must follow the steps in this page:
+
+   https://docs.openstack.org/infra/manual/developers.html
+
+Once those steps have been completed, changes to OpenStack
+should be submitted for review via the Gerrit tool, following
+the workflow documented at:
+
+   https://docs.openstack.org/infra/manual/developers.html#development-workflow
+
+Pull requests submitted through GitHub will be ignored.
+
+Bugs should be filed on Launchpad, not GitHub:
+
+   https://bugs.launchpad.net/oslo.metrics

doc/requirements.txt

+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+
+# For generating sphinx documentation
+openstackdocstheme>=1.18.1 # Apache-2.0
+sphinx>=1.8.0,!=2.1.0 # BSD
+reno>=2.5.0 # Apache-2.0
+sphinxcontrib-apidoc>=0.2.0  # BSD
+
+# For autodoc builds
+oslotest>=3.2.0 # Apache-2.0

doc/source/conf.py

+# -*- 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.
+
+import os
+import sys
+
+sys.path.insert(0, os.path.abspath('../..'))
+# -- 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 = [
+    'sphinxcontrib.apidoc',
+    'sphinx.ext.intersphinx',
+    'openstackdocstheme',
+    'oslo_config.sphinxext',
+]
+
+# openstackdocstheme options
+openstackdocs_repo_name = 'openstack/oslo.metrics'
+openstackdocs_bug_project = 'oslo.metrics'
+openstackdocs_bug_tag = ''
+
+# sphinxcontrib.apidoc options
+apidoc_module_dir = '../../oslo_metrics'
+apidoc_output_dir = 'reference/api'
+apidoc_excluded_paths = [
+    'tests'
+]
+
+# The suffix of source filenames.
+source_suffix = '.rst'
+
+# The master toctree document.
+master_doc = 'index'
+
+# General information about the project.
+project = u'oslo.metrics'
+copyright = u'2014, OpenStack Foundation'
+
+# 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 = 'native'
+
+# A list of ignored prefixes for module index sorting.
+modindex_common_prefix = ['oslo_metrics.']
+
+# -- 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 = 'openstackdocs'
+# 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'),
+]
+
+intersphinx_mapping = {
+    'python': ('https://docs.python.org/', None),
+    'osloconfig': ('http://docs.openstack.org/oslo.config/latest/', None),
+}

doc/source/contributor/index.rst

+============
+Contributing
+============
+
+.. include:: ../../../CONTRIBUTING.rst

doc/source/index.rst

+============
+oslo.metrics
+============
+
+This Oslo metrics API supports collecting metrics data from other Oslo
+libraries and exposing the metrics data to monitoring system.
+
+Contents
+========
+
+.. toctree::
+   :maxdepth: 2
+
+   install/index
+   contributor/index
+   reference/api/modules
+   user/index
+
+
+Release Notes
+=============
+
+Read also the `oslo.metrics Release Notes
+<https://docs.openstack.org/releasenotes/oslo.metrics/>`_.
+
+
+Indices and tables
+==================
+
+* :ref:`genindex`
+* :ref:`modindex`
+* :ref:`search`
+

doc/source/install/index.rst

+============
+Installation
+============
+
+At the command line::
+
+    $ pip install oslo.metrics

doc/source/user/history.rst

+.. include:: ../../../ChangeLog

doc/source/user/index.rst

+==================
+Using oslo.metrics
+==================
+
+.. toctree::
+   :maxdepth: 2
+
+   usage
+
+.. toctree::
+   :maxdepth: 1
+
+   history

doc/source/user/usage.rst

+=====
+Usage
+=====
+
+A simple example of oslo.metrics in use::
+
+    $ oslo-metrics
+    2020-06-11 15:59:53.459 5435 INFO oslo.metrics.__main__ [-] Start oslo.metrics

test-requirements.txt

 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking>=3.0,<3.1.0 # Apache-2.0
+hacking>=3.0.1,<3.1.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0
 # Bandit security code scanner
 bandit>=1.1.0,<1.6.0 # Apache-2.0

tox.ini

@@ -25,16 +25,16 @@ commands =
 [testenv:venv]
 commands = {posargs}
 
+[testenv:docs]
+whitelist_externals = rm
+deps =
+  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
+  -r{toxinidir}/doc/requirements.txt
+commands =
+  rm -fr doc/build
+  sphinx-build -W --keep-going -b html doc/source doc/build/html
+
 # NOTE(hberaud): Not yet activated
-#[testenv:docs]
-#whitelist_externals = rm
-#deps =
-#  -c{env:TOX_CONSTRAINTS_FILE:https://releases.openstack.org/constraints/upper/master}
-#  -r{toxinidir}/doc/requirements.txt
-#commands =
-#  rm -fr doc/build
-#  sphinx-build -W --keep-going -b html doc/source doc/build/html
-#
 #[testenv:cover]
 #setenv =
 #  PYTHON=coverage run --source oslo_cache --parallel-mode