Rearrange existing documentation to fit the new standard layout

For more detail, see the doc migration spec.
http://specs.openstack.org/openstack/docs-specs/specs/pike/os-manuals-migration.html

Partially-Implements: blueprint queens-doc-restructure

Co-Authored-By: Kurt Taylor <kurt.r.taylor@gmail.com>
Change-Id: Iab93bf023a13b953a31152b91d4fea0fa75bf2d0

1 files changed, 88 insertions, 0 deletions

diff --git a/doc/source/contributor/CONTRIBUTING.rst b/doc/source/contributor/CONTRIBUTING.rst
new file mode 100644
index 000000000..7b6ce18f4
--- /dev/null
+++ b/doc/source/contributor/CONTRIBUTING.rst
@@ -0,0 +1,88 @@
+.. _CONTRIBUTING:
+
+=================
+How To Contribute
+=================
+
+Basics
+======
+
+#. Our source code is hosted on `OpenStack Kolla Git`_. Bugs should be filed on
+   launchpad_.
+
+#. Please follow OpenStack `Gerrit Workflow`_ to contribute to Kolla.
+
+#. Note the branch you're proposing changes to. ``master`` is the current focus
+   of development. Kolla project has a strict policy of only allowing backports
+   in ``stable/branch``, unless when not applicable. A bug in a
+   ``stable/branch`` will first have to be fixed in ``master``.
+
+#. Please file a launchpad_ blueprint for any significant code change and a bug
+   for any significant bug fix.  See how to reference a bug or a blueprint in
+   the commit message here_. For simple changes, contributors may optionally
+   add the text "TrivialFix" to the commit message footer to indicate to
+   reviewers a bug is not required.
+
+.. _OpenStack Kolla Git: https://git.openstack.org/cgit/openstack/kolla/
+.. _launchpad: https://bugs.launchpad.net/kolla
+.. _here: https://wiki.openstack.org/wiki/GitCommitMessages
+
+Please use the existing sandbox repository, available at
+https://git.openstack.org/cgit/openstack-dev/sandbox, for learning, understanding
+and testing the `Gerrit Workflow`_.
+
+.. _Gerrit Workflow: https://docs.openstack.org/infra/manual/developers.html#development-workflow
+
+Adding a new service
+====================
+
+Kolla aims to both containerise and deploy all services within the OpenStack
+"big tent". This is a constantly moving target as the ecosystem grows, so these
+guidelines aim to help make adding a new service to Kolla a smooth experience.
+
+The image
+---------
+Kolla follows Docker best practices
+(https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/)
+when designing and implementing services where at all possible.
+
+We use ``jinja2`` templating syntax to help manage the volume and complexity
+that comes with maintaining multiple Dockerfiles for multiple different base
+operating systems.
+
+Images should be created under the ``docker`` directory. OpenStack services
+should inherit from the provided ``openstack-base`` image, while supporting and
+infrastructure services (e.g. mongodb) should inherit from ``base``.
+
+Services consisting of only one service should be placed in an image named the
+same as that service, e.g. ``horizon``. Services that consist of multiple
+processes generally use a base image and child images, e.g. ``glance-base``,
+``glance-api``, and ``glance-registry``.
+
+Jinja2 'blocks' are employed throughout the Dockerfile's to help operators
+customise various stages of the build (refer to
+https://docs.openstack.org/kolla/latest/image-building.html#dockerfile-customisation)
+
+Some of these blocks are free form however, there are a subset that should be
+common to every Dockerfile. The overall structure for a multi container service
+is as follows::
+
+    FROM {{ namespace }}/{{ image_prefix }}openstack-base:{{ tag }}
+    LABEL maintainer="{{ maintainer }}" name="{{ image_name }}" build-date="{{ build_date }}"
+
+    {% block << service >>_header %}{% endblock %}
+
+    {% import "macros.j2" as macros with context %}
+
+    << binary specific steps >>
+
+    << source specific steps >>
+
+    << common steps >>
+
+    {% block << service >>_footer %}{% endblock %}
+    {% block footer %}{% endblock %}
+
+.. NOTE::
+  The generic footer block ``{% block footer %}{% endblock %}`` should not be
+  included in base images (e.g. glance-base).