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Implement ability to specify external volumes

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External volumes are created and managed by the user.
They are not namespaced.
They are expected to exist at the beginning of the up phase.

Signed-off-by: Joffrey F <joffrey@docker.com>
This commit is contained in:
Joffrey F 2016-01-12 16:53:49 -08:00
commit 9cb58b796e
6 changed files with 93 additions and 21 deletions
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14
compose/project.py
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@ -77,7 +77,9 @@ class Project(object):
project.volumes.append(
Volume(
client=client, project=name, name=vol_name,
driver=data.get('driver'), driver_opts=data.get('driver_opts')
driver=data.get('driver'),
driver_opts=data.get('driver_opts'),
external=data.get('external', False)
)
)
return project
@ -235,11 +237,17 @@ class Project(object):
def initialize_volumes(self):
try:
for volume in self.volumes:
if volume.is_user_created:
if volume.external:
log.info(
'Found user-created volume "{0}". No new namespaced '
'Volume {0} declared as external. No new '
'volume will be created.'.format(volume.name)
)
if not volume.exists():
raise ConfigurationError(
'Volume {0} declared as external, but could not be'
' found. Please create the volume manually and try'
' again.'.format(volume.full_name)
)
continue
volume.create()
except NotFound: