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scenario.py
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scenario.py
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# Copyright (c) 2015-2017 Cisco Systems, Inc.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
import os
class Scenario(object):
"""
Scenarios allow Molecule test a role in various ways. Scenarios are a
fundamental change from Molecule v1.
Molecule will search the `molecule/` directory for directories representing
scenarios. These scenario directories contain everything necessary for
managing the instances, and converging/testing the role.
Molecule's provisioner manages the instances lifecycle. However, the user
must provide the setup, teardown, and converge playbooks. Molecule's
`init` subcommand will provide the necessary files for convenience.
Any option set in this section will override the defaults.
.. code-block:: yaml
scenario:
name: default
setup: create.yml
converge: playbook.yml
teardown: destroy.yml
converge_sequence:
- create
- converge
test_sequence:
- destroy
- create
- converge
- lint
- verify
- destroy
"""
def __init__(self, config):
"""
A class encapsulating a scenario.
:param config: An instance of a Molecule config.
:return: None
"""
self._config = config
@property
def name(self):
return self._config.config['scenario']['name']
@property
def directory(self):
return os.path.dirname(self._config.molecule_file)
@property
def setup(self):
return os.path.join(self.directory,
self._config.config['scenario']['setup'])
@property
def converge(self):
return os.path.join(self.directory,
self._config.config['scenario']['converge'])
@property
def teardown(self):
return os.path.join(self.directory,
self._config.config['scenario']['teardown'])
@property
def converge_sequence(self):
return self._config.config['scenario']['converge_sequence']
@property
def test_sequence(self):
return self._config.config['scenario']['test_sequence']