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.. image:: https://travis-ci.org/logilab/saemref-formula.svg?branch=master
    :target: https://travis-ci.org/logilab/saemref-formula

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===============
saemref-formula
===============

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A saltstack formula handling installation of `saem_ref`_.

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Available states
================

.. contents::
    :local:

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``saemref``
-----------

Equivalent to ``saemref.install`` and ``saemref.config``.

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``saemref.install``
-------------------

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Installs the saemref package from logilab repositories and create an instance
for user ``saemref``.

Cubicweb config files are located in ``~saemref/etc/cubicweb.d/saemref`` and
``cubicweb-ctl`` can be invoked as user ``saemref`` with environment variable
``CW_MODE=user``.

The state require the installation of `epel-formula`_ and `postgres-formula`_
with ``postgres.lookup.version: 9.4`` (see ``pillar.example``).
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``saemref.config``
------------------

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Only manage instance configuration files.

``saemref.db-create``
---------------------

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Create instance database with ``cubicweb-ctl db-create`` (call implicitly ``db-init``).

``saemref.db-init``
---------------------

Initialize instance database schema with ``cubicweb-ctl db-init``.
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``saemref.supervisor``
----------------------

Install and manage `supervisor`_ configuration for the saemref installation.

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+----------+-----------------------------------------------------+-------------------------------------+
| OS       | Restart instance                                    | Restart supervisor                  |
+==========+=====================================================+=====================================+
| Centos 6 | ``su - saemref -c 'supervisorctl restart saemref'`` | ``/etc/init.d/supervisord restart`` |
+----------+-----------------------------------------------------+-------------------------------------+
| Centos 7 | ``supervisorctl restart saemref``                   | ``systemctl restart supervisord``   |
+----------+-----------------------------------------------------+-------------------------------------+

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Requirements
============

If using postgres as database driver, ensure the `postgres contrib`_ package is
installed on server side.
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Testing
=======

The script `run-test.py` can help to develop and test the formula using
`docker`_ and `testinfra`_.

The command ``./run-test.py dev centos6`` will build image from
``test/centos6.Dockerfile`` and span a shell in a new container with mounted
volumes from the host (so you can develop formula on the host and test it in
the container with ``salt-call``).

The command ``./run-test.py dev centos6 --salt`` is the same as above but will
provision the container (eg. calling ``salt-call state.highstate``)

The command ``./run-test.py test centos6`` built a provisioned image
(highstate) and run testinfra tests on it.

Note that you can add any parameters that testinfra (pytest) accept, for
instance ``./run-test.py test centos6 -k idempotence --pdb``.

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.. _saem_ref: https://www.cubicweb.org/project/cubicweb-saem_ref
.. _supervisor: http://supervisord.org
.. _docker: https://www.docker.com/
.. _testinfra: https://testinfra.readthedocs.org/
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.. _epel-formula: https://github.com/saltstack-formulas/epel-formula
.. _postgres-formula: https://github.com/saltstack-formulas/postgres-formula
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.. _postgres contrib: https://www.postgresql.org/docs/current/static/contrib.html