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# Copyright 2013 Canonical Ltd.
#
# Authors:
# Charm Helpers Developers <juju@lists.ubuntu.com>
import mock
import os
import shutil
import tempfile
import unittest
import yaml
import charmhelpers.contrib.ansible
class InstallAnsibleSupportTestCase(unittest.TestCase):
def setUp(self):
super(InstallAnsibleSupportTestCase, self).setUp()
patcher = mock.patch('charmhelpers.fetch')
self.mock_fetch = patcher.start()
self.addCleanup(patcher.stop)
patcher = mock.patch('charmhelpers.core')
self.mock_core = patcher.start()
self.addCleanup(patcher.stop)
hosts_file = tempfile.NamedTemporaryFile()
self.ansible_hosts_path = hosts_file.name
self.addCleanup(hosts_file.close)
patcher = mock.patch.object(charmhelpers.contrib.ansible,
'ansible_hosts_path',
self.ansible_hosts_path)
patcher.start()
self.addCleanup(patcher.stop)
def test_adds_ppa_by_default(self):
charmhelpers.contrib.ansible.install_ansible_support()
self.mock_fetch.add_source.assert_called_once_with(
'ppa:rquillo/ansible')
self.mock_fetch.apt_update.assert_called_once_with(fatal=True)
self.mock_fetch.apt_install.assert_called_once_with(
'ansible')
def test_no_ppa(self):
charmhelpers.contrib.ansible.install_ansible_support(
from_ppa=False)
self.assertEqual(self.mock_fetch.add_source.call_count, 0)
self.mock_fetch.apt_install.assert_called_once_with(
'ansible')
def test_writes_ansible_hosts(self):
with open(self.ansible_hosts_path) as hosts_file:
self.assertEqual(hosts_file.read(), '')
charmhelpers.contrib.ansible.install_ansible_support()
with open(self.ansible_hosts_path) as hosts_file:
self.assertEqual(hosts_file.read(),
'localhost ansible_connection=local')
class ApplyPlaybookTestCases(unittest.TestCase):
unit_data = {
'private-address': '10.0.3.2',
'public-address': '123.123.123.123',
}
def setUp(self):
super(ApplyPlaybookTestCases, self).setUp()
# Hookenv patches (a single patch to hookenv doesn't work):
patcher = mock.patch('charmhelpers.core.hookenv.config')
self.mock_config = patcher.start()
self.addCleanup(patcher.stop)
Serializable = charmhelpers.core.hookenv.Serializable
self.mock_config.return_value = Serializable({})
patcher = mock.patch('charmhelpers.core.hookenv.relation_get')
self.mock_relation_get = patcher.start()
self.mock_relation_get.return_value = {}
self.addCleanup(patcher.stop)
patcher = mock.patch('charmhelpers.core.hookenv.relations')
self.mock_relations = patcher.start()
self.mock_relations.return_value = {
'wsgi-file': {},
'website': {},
'nrpe-external-master': {},
}
self.addCleanup(patcher.stop)
patcher = mock.patch('charmhelpers.core.hookenv.relations_of_type')
self.mock_relations_of_type = patcher.start()
self.mock_relations_of_type.return_value = []
self.addCleanup(patcher.stop)
patcher = mock.patch('charmhelpers.core.hookenv.relation_type')
self.mock_relation_type = patcher.start()
self.mock_relation_type.return_value = None
self.addCleanup(patcher.stop)
patcher = mock.patch('charmhelpers.core.hookenv.local_unit')
self.mock_local_unit = patcher.start()
self.addCleanup(patcher.stop)
self.mock_local_unit.return_value = {}
def unit_get_data(argument):
"dummy unit_get that accesses dummy unit data"
return self.unit_data[argument]
patcher = mock.patch(
'charmhelpers.core.hookenv.unit_get', unit_get_data)
self.mock_unit_get = patcher.start()
self.addCleanup(patcher.stop)
patcher = mock.patch('charmhelpers.contrib.ansible.subprocess')
self.mock_subprocess = patcher.start()
self.addCleanup(patcher.stop)
etc_dir = tempfile.mkdtemp()
self.addCleanup(shutil.rmtree, etc_dir)
self.vars_path = os.path.join(etc_dir, 'ansible', 'vars.yaml')
patcher = mock.patch.object(charmhelpers.contrib.ansible,
'ansible_vars_path', self.vars_path)
patcher.start()
self.addCleanup(patcher.stop)
def test_calls_ansible_playbook(self):
charmhelpers.contrib.ansible.apply_playbook(
'playbooks/dependencies.yaml')
self.mock_subprocess.check_call.assert_called_once_with([
'ansible-playbook', '-c', 'local', 'playbooks/dependencies.yaml'])
def test_writes_vars_file(self):
self.assertFalse(os.path.exists(self.vars_path))
self.mock_config.return_value = charmhelpers.core.hookenv.Serializable({
'group_code_owner': 'webops_deploy',
'user_code_runner': 'ubunet',
'private-address': '10.10.10.10',
})
self.mock_relation_type.return_value = 'wsgi-file'
self.mock_relation_get.return_value = {
'relation_key1': 'relation_value1',
'relation-key2': 'relation_value2',
}
charmhelpers.contrib.ansible.apply_playbook(
'playbooks/dependencies.yaml')
self.assertTrue(os.path.exists(self.vars_path))
with open(self.vars_path, 'r') as vars_file:
result = yaml.load(vars_file.read())
self.assertEqual({
"group_code_owner": "webops_deploy",
"user_code_runner": "ubunet",
"private_address": "10.10.10.10",
"charm_dir": "",
"local_unit": {},
'relations_deprecated': {'wsgi_file': []},
'current_relation': {
'relation_key1': 'relation_value1',
'relation-key2': 'relation_value2',
},
'relations': {
'nrpe-external-master': {},
'website': {},
'wsgi-file': {},
},
"wsgi_file__relation_key1": "relation_value1",
"wsgi_file__relation_key2": "relation_value2",
"unit_private_address": "10.0.3.2",
"unit_public_address": "123.123.123.123",
}, result)
def test_calls_with_tags(self):
charmhelpers.contrib.ansible.apply_playbook(
'playbooks/complete-state.yaml', tags=['install', 'somethingelse'])
self.mock_subprocess.check_call.assert_called_once_with([
'ansible-playbook', '-c', 'local', 'playbooks/complete-state.yaml',
'--tags', 'install,somethingelse'])
def test_hooks_executes_playbook_with_tag(self):
hooks = charmhelpers.contrib.ansible.AnsibleHooks('my/playbook.yaml')
foo = mock.MagicMock()
hooks.register('foo', foo)
hooks.execute(['foo'])
self.assertEqual(foo.call_count, 1)
self.mock_subprocess.check_call.assert_called_once_with([
'ansible-playbook', '-c', 'local', 'my/playbook.yaml',
'--tags', 'foo'])
def test_specifying_ansible_handled_hooks(self):
hooks = charmhelpers.contrib.ansible.AnsibleHooks(
'my/playbook.yaml', default_hooks=['start', 'stop'])
hooks.execute(['start'])
self.mock_subprocess.check_call.assert_called_once_with([
'ansible-playbook', '-c', 'local', 'my/playbook.yaml',
'--tags', 'start'])
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