def _create_image(context, instance, image_id):
"""Fetch image from glance and copy it to the remote system."""
try:
file_name = '.'.join([image_id, 'gz'])
file_path = os.path.join(FLAGS.powervm_img_local_path,
file_name)
LOG.debug(_("Fetching image '%s' from glance") % image_id)
images.fetch_to_raw(context,
image_id,
file_path,
instance['user_id'],
project_id=instance['project_id'])
LOG.debug(_("Copying image '%s' to IVM") % file_path)
remote_path = FLAGS.powervm_img_remote_path
remote_file_name, size = self._operator.copy_image_file(
file_path, remote_path)
# Logical volume
LOG.debug(_("Creating logical volume"))
lpar_id = self._operator.get_lpar(instance['name'])['lpar_id']
vhost = self._operator.get_vhost_by_instance_id(lpar_id)
disk_name = self._operator.create_logical_volume(size)
self._operator.attach_disk_to_vhost(disk_name, vhost)
LOG.debug(_("Copying image to the device '%s'") % disk_name)
self._operator.copy_file_to_device(remote_file_name, disk_name)
except Exception, e:
LOG.exception(_("PowerVM image creation failed: %s") % str(e))
raise exception.PowerVMImageCreationFailed()
def _create_image(context, instance, image_id):
"""Fetch image from glance and copy it to the remote system."""
try:
root_volume = self._disk_adapter.create_volume_from_image(
context, instance, image_id)
self._disk_adapter.attach_volume_to_host(root_volume)
lpar_id = self._operator.get_lpar(instance['name'])['lpar_id']
vhost = self._operator.get_vhost_by_instance_id(lpar_id)
self._operator.attach_disk_to_vhost(
root_volume['device_name'], vhost)
except Exception, e:
LOG.exception(_("PowerVM image creation failed: %s") % str(e))
raise exception.PowerVMImageCreationFailed()
def test_spawn_cleanup_on_fail(self):
self.flags(powervm_img_local_path='/images/')
self.stubs.Set(images, 'fetch', lambda *x, **y: None)
self.stubs.Set(
self.powervm_connection._powervm._disk_adapter,
'create_volume_from_image',
lambda *x, **y: raise_(exception.PowerVMImageCreationFailed()))
self.stubs.Set(
self.powervm_connection._powervm, '_cleanup',
lambda *x, **y: raise_(Exception('This should be logged.')))
fake_net_info = network_model.NetworkInfo(
[fake_network_cache_model.new_vif()])
self.assertRaises(exception.PowerVMImageCreationFailed,
self.powervm_connection.spawn,
context.get_admin_context(), self.instance,
{'id': 'ANY_ID'}, [], 's3cr3t', fake_net_info)
def test_spawn_cleanup_on_fail(self):
# Verify on a failed spawn, we get the original exception raised.
# helper function
def raise_(ex):
raise ex
self.flags(powervm_img_local_path='/images/')
self.stubs.Set(images, 'fetch_to_raw', lambda *x, **y: None)
self.stubs.Set(
self.powervm_connection._powervm._disk_adapter,
'create_volume_from_image',
lambda *x, **y: raise_(exception.PowerVMImageCreationFailed()))
self.stubs.Set(
self.powervm_connection._powervm, '_cleanup',
lambda *x, **y: raise_(Exception('This should be logged.')))
self.assertRaises(exception.PowerVMImageCreationFailed,
self.powervm_connection.spawn,
context.get_admin_context(), self.instance,
{'id': 'ANY_ID'}, 's3cr3t', [])
