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Handle volume driver change error in config.

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Assume version=1 if file is empty in get_config_version
Empty files are invalid anyway, so this simplifies the algorithm
somewhat.
https://github.com/docker/compose/pull/2421#discussion_r47223144

Don't leak version considerations in interpolation/service validation

Signed-off-by: Joffrey F <joffrey@docker.com>
This commit is contained in:
Joffrey F 2015-12-11 17:21:04 -08:00
commit a7689f3da8
6 changed files with 94 additions and 21 deletions
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38
tests/integration/project_test.py
View file

@ -579,11 +579,11 @@ class ProjectTest(DockerClientTestCase):
vol_name = '{0:x}'.format(random.getrandbits(32))
config_data = config.Config(
2, [{
version=2, services=[{
'name': 'web',
'image': 'busybox:latest',
'command': 'top'
}], {vol_name: {'driver': 'foobar'}}
}], volumes={vol_name: {'driver': 'foobar'}}
)
project = Project.from_config(
@ -592,3 +592,37 @@ class ProjectTest(DockerClientTestCase):
)
with self.assertRaises(config.ConfigurationError):
project.initialize_volumes()
def test_project_up_updated_driver(self):
vol_name = '{0:x}'.format(random.getrandbits(32))
full_vol_name = 'composetest_{0}'.format(vol_name)
config_data = config.Config(
version=2, services=[{
'name': 'web',
'image': 'busybox:latest',
'command': 'top'
}], volumes={vol_name: {'driver': 'local'}}
)
project = Project.from_config(
name='composetest',
config_data=config_data, client=self.client
)
project.initialize_volumes()
volume_data = self.client.inspect_volume(full_vol_name)
self.assertEqual(volume_data['Name'], full_vol_name)
self.assertEqual(volume_data['Driver'], 'local')
config_data = config_data._replace(
volumes={vol_name: {'driver': 'smb'}}
)
project = Project.from_config(
name='composetest',
config_data=config_data, client=self.client
)
with self.assertRaises(config.ConfigurationError) as e:
project.initialize_volumes()
assert 'Configuration for volume {0} specifies driver smb'.format(
vol_name
) in str(e.exception)