def guest_creating_progress_report_engine():
"""
Guest 创建进度上报引擎
"""
list_creating_guest = list()
template_size = dict()
while True:
if Utils.exit_flag:
msg = 'Thread guest_creating_progress_report_engine say bye-bye'
print msg
logger.info(msg=msg)
return
try:
try:
payload = q_creating_guest.get(
timeout=config['engine_cycle_interval'])
list_creating_guest.append(payload)
q_creating_guest.task_done()
except Queue.Empty as e:
pass
# 当有 Guest 被创建时，略微等待一下，避免复制模板的动作还没开始，就开始计算进度。这样会产生找不到镜像路径的异常。
time.sleep(1)
threads_status['guest_creating_progress_report_engine'] = {
'timestamp': ji.Common.ts()
}
for i, guest in enumerate(list_creating_guest):
template_path = guest['template_path']
storage = Storage(storage_mode=guest['storage_mode'],
dfs_volume=guest['dfs_volume'])
if template_path not in template_size:
template_size[template_path] = float(
storage.getsize(path=template_path))
system_image_size = storage.getsize(
path=guest['system_image_path'])
progress = system_image_size / template_size[template_path]
guest_event_emit.creating(uuid=guest['uuid'],
progress=int(progress * 90))
if progress >= 1:
del list_creating_guest[i]
except:
log_emit.warn(traceback.format_exc())
def guest_creating_progress_report_engine():
"""
Guest 创建进度上报引擎
"""
list_creating_guest = list()
template_size = dict()
while True:
if Utils.exit_flag:
msg = 'Thread guest_creating_progress_report_engine say bye-bye'
print msg
logger.info(msg=msg)
return
# noinspection PyBroadException
try:
try:
payload = q_creating_guest.get(timeout=config['engine_cycle_interval'])
list_creating_guest.append(payload)
q_creating_guest.task_done()
except Queue.Empty as e:
pass
threads_status['guest_creating_progress_report_engine'] = dict()
threads_status['guest_creating_progress_report_engine']['timestamp'] = ji.Common.ts()
# 当有 Guest 被创建时，略微等待一下，避免复制模板的动作还没开始，就开始计算进度。这样会产生找不到镜像路径的异常。
time.sleep(1)
for i, guest in enumerate(list_creating_guest):
template_path = guest['template_path']
progress = 0
if guest['storage_mode'] in [StorageMode.ceph.value, StorageMode.glusterfs.value]:
if guest['storage_mode'] == StorageMode.glusterfs.value:
if template_path not in template_size:
Guest.dfs_volume = guest['dfs_volume']
Guest.init_gfapi()
template_size[template_path] = float(Guest.gf.getsize(template_path))
system_image_size = Guest.gf.getsize(guest['system_image_path'])
progress = system_image_size / template_size[template_path]
elif guest['storage_mode'] in [StorageMode.local.value, StorageMode.shared_mount.value]:
if template_path not in template_size:
template_size[template_path] = float(os.path.getsize(template_path))
system_image_size = os.path.getsize(guest['system_image_path'])
progress = system_image_size / template_size[template_path]
else:
del list_creating_guest[i]
log = u' '.join([u'UUID: ', guest['uuid'], u'未支持的存储模式: ', str(guest['storage_mode'])])
logger.error(log)
log_emit.error(log)
guest_event_emit.creating(uuid=guest['uuid'], progress=int(progress * 90))
if progress >= 1:
del list_creating_guest[i]
except:
logger.error(traceback.format_exc())
log_emit.error(traceback.format_exc())
def create(conn, msg):
try:
guest = Guest(uuid=msg['uuid'],
name=msg['name'],
template_path=msg['template_path'],
disk=msg['disks'][0],
xml=msg['xml'],
storage_mode=msg['storage_mode'],
dfs_volume=msg['dfs_volume'])
q_creating_guest.put({
'storage_mode': guest.storage.storage_mode,
'dfs_volume': guest.storage.dfs_volume,
'uuid': guest.uuid,
'template_path': guest.template_path,
'system_image_path': guest.system_image_path
})
guest.generate_system_image()
dom = guest.define_by_xml(conn=conn)
assert isinstance(dom, libvirt.virDomain)
log = u' '.join(
[u'域', guest.name, u', UUID', guest.uuid, u'定义成功.'])
log_emit.info(msg=log)
guest_event_emit.creating(uuid=guest.uuid, progress=92)
disk_info = guest.storage.image_info(path=guest.system_image_path)
# 由该线程最顶层的异常捕获机制，处理其抛出的异常
guest.execute_os_template_initialize_operates(
dom=conn.lookupByUUIDString(uuidstr=guest.uuid),
os_template_initialize_operates=msg[
'os_template_initialize_operates'],
os_type=msg['os_type'])
extend_data = dict()
extend_data.update({'disk_info': disk_info})
guest_event_emit.creating(uuid=guest.uuid, progress=97)
dom.create()
log = u' '.join(
[u'域', guest.name, u', UUID', guest.uuid, u'启动成功.'])
log_emit.info(msg=log)
Guest.quota(dom=dom, msg=msg)
response_emit.success(
_object=msg['_object'],
action=msg['action'],
uuid=msg['uuid'],
data=extend_data,
passback_parameters=msg.get('passback_parameters'))
except:
log_emit.error(traceback.format_exc())
response_emit.failure(
_object=msg['_object'],
action=msg.get('action'),
uuid=msg.get('uuid'),
passback_parameters=msg.get('passback_parameters'))
def create(cls, conn, msg):
try:
Guest.storage_mode = msg['storage_mode']
guest = Guest(uuid=msg['uuid'],
name=msg['name'],
template_path=msg['template_path'],
disk=msg['disks'][0],
xml=msg['xml'])
if Guest.storage_mode == StorageMode.glusterfs.value:
Guest.dfs_volume = msg['dfs_volume']
Guest.init_gfapi()
guest.system_image_path = guest.disk['path']
q_creating_guest.put({
'storage_mode': Guest.storage_mode,
'dfs_volume': Guest.dfs_volume,
'uuid': guest.uuid,
'template_path': guest.template_path,
'system_image_path': guest.system_image_path
})
if not guest.generate_system_image():
raise RuntimeError('System image generate failure.')
if not guest.define_by_xml(conn=conn):
raise RuntimeError(
'Define the instance of virtual machine by xml failure.')
guest_event_emit.creating(uuid=guest.uuid, progress=92)
disk_info = dict()
if Guest.storage_mode == StorageMode.glusterfs.value:
disk_info = Disk.disk_info_by_glusterfs(
dfs_volume=guest.dfs_volume,
image_path=guest.system_image_path)
elif Guest.storage_mode in [
StorageMode.local.value, StorageMode.shared_mount.value
]:
disk_info = Disk.disk_info_by_local(
image_path=guest.system_image_path)
# 由该线程最顶层的异常捕获机制，处理其抛出的异常
guest.execute_os_template_initialize_operates(
guest=conn.lookupByUUIDString(uuidstr=guest.uuid),
os_template_initialize_operates=msg[
'os_template_initialize_operates'],
os_type=msg['os_type'])
extend_data = dict()
extend_data.update({'disk_info': disk_info})
guest_event_emit.creating(uuid=guest.uuid, progress=97)
if not guest.start_by_uuid(conn=conn):
raise RuntimeError(
'Start the instance of virtual machine by uuid failure.')
cls.quota(guest=conn.lookupByUUIDString(uuidstr=guest.uuid),
msg=msg)
response_emit.success(
_object=msg['_object'],
action=msg['action'],
uuid=msg['uuid'],
data=extend_data,
passback_parameters=msg.get('passback_parameters'))
except:
logger.error(traceback.format_exc())
log_emit.error(traceback.format_exc())
response_emit.failure(
_object=msg['_object'],
action=msg.get('action'),
uuid=msg.get('uuid'),
passback_parameters=msg.get('passback_parameters'))