Generate configuration file for tempest from cloud credentials
==============================================================

Installs python-tempestconf cloned from git and generates tempest.conf with
credentials saved in clouds.yaml file. The tempest configuration file is printed
to the output after that.

**Role Variables**

.. zuul:rolevar:: cloud_user
   :type: string
   :default: devstack

   Named cloud with demo user credentials as a default value.

.. zuul:rolevar:: virtualenvs
   :type: dict

   A dictionary of paths to virtual environments.

   .. zuul:rolevar:: tempestconf
      :default: ~/.virtualenvs/.tempestconf

      A path to the virtual environment of python-tempestconf tool.

.. zuul:rolevar:: url_cirros_image
   :type: string
   :default: http://download.cirros-cloud.net/0.3.5/cirros-0.3.5-x86_64-disk.img

   A URL address of the cirros image.

.. zuul:rolevar:: tempestconf_src_relative_path
   :type: string

   A relative path to a python-tempestconf project which is by default cloned
   to the Zuul home directory. Value of the variable is set in the role to
   that default path. If needed, the variable can be overridden from the
   playbook where the role is called from.