def adjust_for_heartbeat(self, parents):
LOG.debug('Virtman: adjust_for_heartbeat according to '
'connections: %s ' % parents)
parent_connections = utils.reform_connections(parents)
if self.is_local_has_image or len(parent_connections) == 0:
parent_connections = self.image_connections
self.rebuild_multipath(parent_connections)
def _deploy_base_image(self):
# TODO: Roll back if failed !
"""
deploy image in compute node, return the origin path to create snapshot
:param image_connection: the connection towards to the base image
:returns: origin path to create snapshot
"""
LOG.debug("Virtman: in deploy_base_image, image name = %s, "
"has multipath = %s, has origin = %s, has cache = %s, "
"is_login = %s" %
(self.image_name, self.has_multipath, self.has_origin,
self.has_cache, self.is_login))
# Check if it had origin or not!
if self.has_origin:
return self.origin_path
# save the base_image paths
found = None
for connection in self.image_connections:
if connection['target_portal'].find(CONF.host_ip) >= 0:
found = connection
break
if found is not None:
self.image_connections = [found]
self.is_local_has_image = True
LOG.debug("Virtman: my host_ip = %s, is_local_has_image = %s!,"
" now image_connections = %s" %
(CONF.host_ip, self.is_local_has_image,
self.image_connections))
# Reform connections
if self.is_local_has_image:
parent_connections = []
else:
parent_connections = utils.reform_connections(self._get_parent())
LOG.debug("Virtman: parents for volt is %s" % parent_connections)
self.rebuild_multipath(parent_connections)
build_chain = Chain()
build_chain.add_step(partial(self._create_cache),
partial(self._delete_cache))
build_chain.add_step(partial(self._create_origin),
partial(self._delete_origin))
build_chain.add_step(partial(self._create_target),
partial(self._delete_target))
build_chain.add_step(partial(self._login_master),
partial(self._logout_master))
build_chain.do()
# self._create_cache()
# self._create_origin()
# self._create_target()
# self._login_master()
LOG.debug("Virtman: baseimage OK!\n"
"target_id = %s, origin_path = %s, origin_name = %s, "
"cached_path = %s, multipath_path = %s, multipath_name = %s" %
(self.target_id, self.origin_path, self.origin_name,
self.cached_path, self.multipath_path, self.multipath_name))
return self.origin_path
def modify_parent_connection(self):
if self.is_local_has_image:
parent_connections = self.image_connections
else:
parent_connections = \
utils.reform_connections(self.get_parent()) or \
self.image_connections
return parent_connections
def __init__(self, image_name, image_connections):
super(FakeBaseImage, self).__init__()
self.image_name = image_name
self.multipath_name = 'multipath_' + self.image_name
self.origin_name = 'origin_' + self.image_name
self.image_connections = utils.reform_connections(image_connections)
self.is_local_has_image = False
self.paths = {}
self.has_target = False
self.is_login = False
self.iqn = self.image_connections[0]['target_iqn']
self.multipath_path = None
self.cached_path = None
self.origin_path = None
self.peer_id = ''
self.target_id = 0
LOG.debug("Virtman: initialize base image of image_name %s" %
self.image_name)
def __init__(self, image_name, image_connections):
self.image_name = image_name
self.image_connections = utils.reform_connections(image_connections)
self.is_local_has_image = False
self.paths = {}
self.has_multipath = False
self.has_cache = False
self.has_origin = False
self.has_target = False
self.is_login = False
self.iqn = self.image_connections[0]['target_iqn']
self.multipath_name = 'multipath_' + self.image_name
self.origin_name = 'origin_' + self.image_name
self.multipath_path = None
self.cached_path = None
self.origin_path = None
# TODO: all virtual machines called image
self.peer_id = ''
self.target_id = 0
self.status = STATUS.empty
self.status_lock = threading.Lock()
LOG.debug("Virtman: creating a base image of image_name %s" %
self.image_name)
def adjust_for_heartbeat(self, parents):
LOG.debug('Virtman: adjust_for_heartbeat according to '
'connections: %s ' % parents)
parent_connections = utils.reform_connections(parents)
self.rebuild_multipath(parent_connections)