--- /dev/null
+==================================================
+How to create documentation for your OPNFV project
+==================================================
+
+Directory Structure
+===================
+
+This is the directory structure of the docs/ directory which have to be placed
+in the root of your project directory.
+
+.. code-block:: bash
+
+ ./how-to-use-docs/documentation-example.rst
+ ./how-to-use-docs/index.rst
+
+To create your own document, create any number of directories (depending
+on your need, e.g. manual) under the docs/ and place an index.rst in each
+directories.
+The depth of all directory should be one, so that you can make sure that
+all directory names are unique. If you want to have set of all documents in
+your repo, create new ``docs/all/index.rst`` and list document links in OPNFV
+artifact server (artifact.opnfv.org) instead of including all other rst files
+or having ``docs/index.rst``, in order to avoid having duplicated contents in
+your documents.
+
+Note:
+You may have "docs/how-to-use-docs/" in you project repo. You can delete it,
+since it is sample and master version is stored in releng repo.
+
+Note:
+During the document build process, 'docs_build' and 'docs_output' will be
+created in the project root directory. To avoid conflict, you should not
+use those names and should add the following entries in '.gitignore' file
+so that git can ignore built files.
+
+.. code-block:: bash
+
+ /docs_build/
+ /docs_output/
+ /releng/
+
+Index File
+==========
+
+This index file must refence your other rst files in that directory.
+
+Here is an example index.rst :
+
+.. code-block:: bash
+
+ *******************
+ Documentation Title
+ *******************
+
+ .. toctree::
+ :numbered:
+ :maxdepth: 2
+
+ documentation-example.rst
+
+Source Files
+============
+
+Document source files have to be written in reStructuredText format (rst).
+Each file would be build as an html page and a chapter in PDF.
+
+Here is an example source rst file :
+
+.. code-block:: bash
+
+ =============
+ Chapter Title
+ =============
+
+ Section Title
+ =============
+
+ Hello!
+
+Writing RST Markdown
+====================
+
+See http://sphinx-doc.org/rest.html .
+
+**Hint:**
+Table and its contents won't be adjusted, so you may need to fix your source
+text when your table is truncated in PDF version. Or, you can use 'longtable'
+option that splits your table vertically (by rows) in multiple pages.
+It is useful if you have trouble in rendering table containing many rows.
+
+.. code-block:: bash
+
+ .. table::
+ :class: longtable
+
+ +------------------------+------------+----------+----------+
+ | Header row, column 1 | Header 2 | Header 3 | Header 4 |
+ +========================+============+==========+==========+
+ | body row 1, column 1 | column 2 | column 3 | column 4 |
+ +------------------------+------------+----------+----------+
+ | body row 2 | ... | ... | |
+ +------------------------+------------+----------+----------+
+
+**Hint:**
+You can add dedicated contents by using 'only' directive with build type
+('html' and 'pdf') for OPNFV document. But, this is not encouraged to use
+since this may make different views in HTML and PDF version.
+
+.. code-block:: bash
+
+ .. only:: html
+ This line will be shown only in html version.
+
+Configuration
+=============
+
+If you need to change the default configuration for document build, create
+new conf.py in the document directory (e.g. 'docs/how-to-use-docs/conf.py')
+that will be used in build process instead of default for OPNFV document
+build. The OPNFV default configuration can be found in releng repo
+(see `docs/etc/conf.py`_).
+
+.. _docs/etc/conf.py:
+ https://gerrit.opnfv.org/gerrit/gitweb?p=releng.git;a=blob;f=docs/etc/conf.py;
+
+In the build process, the following parameters are automatically added if they
+are not set in the conf.py .
+
+* **release**, **version** : ``git last tag name`` (``git last commit hash``)
+* **project** : ``git repo name``
+* **copyright** : ``year``, OPNFV
+* **latex_documents** (set of pdf configuration) :
+ [('index', '``document directory name``.tex',
+ '``document title in index.rst``', 'OPNFV', 'manual'),]
+
+See http://sphinx-doc.org/config.html to learn sphinx configuration.
+
+**Note:**
+You can leave the file path for OPNFV logo image which will be prepared
+before each document build.
+
+**Hint:**
+In PDF, figures will be floated to get better view. If you want to avoid such
+automated fixes, just add this option to your conf.py after copying the default
+configuration in to the document directory.
+
+.. code-block:: bash
+
+ latex_elements = {'figure_align': 'H'}
+
+Versioning
+==========
+
+The relevant release and version information will be added to your documents
+by using tags from your project's git repository.
+The tags will be applied by Releng Project.
+
+Testing
+=======
+
+You can test document build in your laptop by using build script which is
+also used in document build jobs below:
+
+.. code-block:: bash
+
+ $ cd /local/repo/path/to/project
+ $ git clone https://git.opnfv.org/releng
+ $ ./releng/utils/docs-build.sh
+
+Then, you can see the docs in 'docs_output' directory if build succeeded.
+
+If you have a problem of missing python package, you can make sure all
+necessary packages are installed as follows:
+
+.. code-block:: bash
+
+ $ sudo pip install Sphinx==1.3.1 doc8 sphinxcontrib-httpdomain
+
+Note:
+Developers are encouraged to use "ssh://<username>@gerrit.opnfv.org:29418/releng"
+instead of "https://git.opnfv.org/releng", so that you can quickly start
+development in releng.
+See https://wiki.opnfv.org/developer/getting_started for more detail.
+
+
+Jenkins Jobs
+============
+
+Enabling Jenkins Jobs
+---------------------
+
+Jenkins in OPNFV infra performs the jobs to verify and update your documents.
+To make your project repository watched by Jenkins to execute those jobs, you
+have to add your project name in 'project-pattern' of the following jobs by
+sending patch to update `jjb/opnfv/opnfv-docs.yml`_ on gerrit.
+
+.. _jjb/opnfv/opnfv-docs.yml:
+ https://gerrit.opnfv.org/gerrit/gitweb?p=releng.git;a=blob;f=jjb/opnfv/opnfv-docs.yml;
+
+Verify Job
+----------
+
+The verify job name is **opnfv-docs-verify**.
+
+When you send document changes to gerrit, jenkins will create your documents
+in HTML and PDF formats to verify that new document can be built successfully.
+Please check the jenkins log and artifact carefully.
+You can improve your document even though if the build job succeeded.
+
+Documents will be uploaded to
+``http://artifacts.opnfv.org/review/<Change Number>/`` for review.
+Those documents will be replaced if you update the change by sending new
+patch set to gerrit, and deleted after the change is merged.
+Document link(s) can be found in your change page on gerrit as a review
+comment.
+
+Note:
+Currently, the job reports 'SUCCESS' as result of document build even if the
+PDF creation failed. This is a provisional workaround, since many projects are
+not ready for PDF creation yet.
+
+Merge Job
+----------
+
+The merge job name is **opnfv-docs-merge**.
+
+Once you are happy with the look of your documentation, you can submit the
+change. Then, the merge job will upload latest build documents to
+``http://artifacts.opnfv.org/<Project Name>/docs/`` .
+You can put links in your project wiki page, so that everyone can see the
+latest document always.
+
+Sphinx Extensions
+=================
+
+You can see available sphinx extension(s) in `docs/etc/requirements.txt`_.
+
+.. _docs/etc/requirements.txt:
+ https://gerrit.opnfv.org/gerrit/gitweb?p=releng.git;a=blob;f=docs/etc/requirements.txt;
+
+You can use other sphinx extensions to improve your documents.
+To share such tips, we encourage you to enable the extension in OPNFV infra
+by asking releng and opnfvdocs teams to add new sphinx extension via gerrit
+(proposing change in `docs/etc/conf.py`_ and `docs/etc/requirements.txt`_).
+After quick sanity checks, we'll install python package (if needed) and make
+it available in OPNFV document build.