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Set "VolumesFrom" when starting containers

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This is necessary when working with Docker 0.10.0 and up. Fortunately,
we can set it both when creating and starting, and retain compatibility
with 0.8.x and 0.9.x.

recreate_containers() is now responsible for starting containers, as
well as creating them. This greatly simplifies usage of the Service
class.
This commit is contained in:
Aanand Prasad 2014-04-23 15:46:26 +01:00
commit 80991f1521
6 changed files with 46 additions and 70 deletions
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14
tests/service_test.py
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@ -2,6 +2,7 @@ from __future__ import unicode_literals
from __future__ import absolute_import
from fig import Service
from fig.service import CannotBeScaledError, ConfigError
from fig.packages.docker.client import APIError
from .testcases import DockerClientTestCase
@ -132,23 +133,22 @@ class ServiceTest(DockerClientTestCase):
num_containers_before = len(self.client.containers(all=True))
service.options['environment']['FOO'] = '2'
(intermediate, new) = service.recreate_containers()
self.assertEqual(len(intermediate), 1)
self.assertEqual(len(new), 1)
tuples = service.recreate_containers()
self.assertEqual(len(tuples), 1)
new_container = new[0]
intermediate_container = intermediate[0]
intermediate_container = tuples[0][0]
new_container = tuples[0][1]
self.assertEqual(intermediate_container.dictionary['Config']['Entrypoint'], ['echo'])
self.assertEqual(new_container.dictionary['Config']['Entrypoint'], ['ps'])
self.assertEqual(new_container.dictionary['Config']['Cmd'], ['ax'])
self.assertIn('FOO=2', new_container.dictionary['Config']['Env'])
self.assertEqual(new_container.name, 'figtest_db_1')
service.start_container(new_container)
self.assertEqual(new_container.inspect()['Volumes']['/var/db'], volume_path)
self.assertEqual(len(self.client.containers(all=True)), num_containers_before + 1)
self.assertEqual(len(self.client.containers(all=True)), num_containers_before)
self.assertNotEqual(old_container.id, new_container.id)
self.assertRaises(APIError, lambda: self.client.inspect_container(intermediate_container.id))
def test_start_container_passes_through_options(self):
db = self.create_service('db')