Lab 10 - Multiple Environments
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Mandatory
=========

Split your inventory
--------------------
* Create two inventory files for ``test`` and ``prod``
* Use the same structure, but only use one web server

    * Add ``web1.<firstname>.lab`` into ``prod``
    * Add ``web2.<firstname>.lab`` into ``test``

* Run a ad-hoc command on the hostgroup ``web`` for both inventory files ``test`` and ``prod``
* Verify, if the task was executed on the right server

.. hint::

    Use the option ``-i <inventory-file>``

Set some variables
------------------
* Create a parent group called ``prod`` and add the group ``web`` and ``db``
* Create a parent group called ``test`` and add the group ``web`` and ``db``
* Create a variable ``envvar: test`` only for the ``test`` servers
* Create a variable ``envvar: prod`` only for the ``prod`` servers
* Create a simple playbook and print out the ``envvar`` for both inventories
* Run the playbook on both inventories ``test`` and ``prod``

.. hint::

    Use the ``debug`` module to print out variables.

.. hint::

    Use the ``-i <inventory-file>`` option


Change the inventory in ansible.cfg
-----------------------------------
* Make the ``test`` inventory to your default inventory


Create a new role
-----------------
* Create a new role ``flask_app``
* Create a new variable ``flask_app_version`` for ``test`` and ``prod``

    * value for ``prod`` -> v1.0
    * value for ``test`` -> v1.1

* Create a role default variable for ``flask_app_version`` and set it to ``master``
* Create a task to checkout the git repo (see `Git Module <http://docs.ansible.com/ansible/devel/modules/git_module.html>`_)

    * https://github.com/pstauffer/flask-mysql-app.git
    * checkout the version defined in the variable ``flask_app_version``
    * destination path should be ``/opt/flask_app``

* Create a new playbook ``deploy.yml``

    * run only on ``web`` hostgroup
    * add the ``flask_app`` role

* Run the playbook on both inventories ``test`` and ``prod``
* Verify the checkout of the correct version -> Log on the servers, switch into the ``/opt/flask_app`` directory and run ``git describe --tags`` or ``git status``


Commit your changes
-------------------
* add all files to your git repo and commit it