def ui_setgroup_luns(self, key, value):
key = int(key)
res = None
vol = None
try:
res = DrbdResource.objects.get(name=value)
except DrbdResource.DoesNotExist:
vol = Volume(value)
if res:
self.obj.devices[key] = res
elif vol.exists():
self.obj.devices[key] = vol.name
else:
raise ValueError('Could not find replicated resource or Volume named "%s"' % value)
def ui_command_attach(self, volume=None, resource=None, index=None):
assert not volume and resource
backstore = None
if resource:
try:
res = DrbdResource.objects.get(name=resource)
except DrbdResource.DoesNotExist:
raise ValueError('Resource "%s" does not exist.' % resource)
backstore, created = DrbdResourceBackstore.objects.get_or_create(resource=res)
if created:
backstore.name = resource
backstore.save()
elif volume:
vol = Volume(volume)
if not vol.exists():
raise ValueError('Volume "%s" does not exist.' % volume)
# TODO Make sure this volume isn't being used by a resource
backstore, created = VolumeBackstore.objects.get_or_create(volume_name=vol.name)
if created:
logger.info('Created Backstore "%s".', backstore)
backstore.name = vol.basename()
backstore.save()
else:
raise ValueError('You must specify either volume or resource to attach')
if index is not None:
self.group.luns.insert(index, backstore)
else:
self.group.luns.append(backstore)
self.target.save()
return True
def volumes(self, **kwargs):
# TODO Fix this, nasty
from solarsan.storage.volume import Volume
kwargs['pool'] = self.name
return Volume.list(**kwargs)