def allocate_vdu_task(ks_path, event_id, cloud_account, request_msg):
response_xpath = ks_path.to_xpath(
RwResourceMgrYang.get_schema()) + "/resource-info"
schema = RwResourceMgrYang.VDUEventData().schema()
pathentry = schema.keyspec_to_entry(ks_path)
try:
response_info = yield from self._parent.allocate_virtual_compute(
event_id,
cloud_account,
request_msg,
)
except Exception as e:
self._log.error(
"Encountered exception : %s while creating virtual compute",
str(e))
response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
response_info.resource_state = 'failed'
yield from self._dts.query_update(response_xpath,
rwdts.XactFlag.ADVISE,
response_info)
else:
if response_info.resource_state == 'failed' or response_info.resource_state == 'active':
self._log.info(
"Virtual compute create task completed. Publishing VDU info: %s at path: %s",
response_info, response_xpath)
yield from self._dts.query_update(response_xpath,
rwdts.XactFlag.ADVISE,
response_info)
else:
asyncio.ensure_future(monitor_vdu_state(
response_xpath, pathentry),
loop=self._loop)
def on_vdu_request_prepare(xact_info, action, ks_path, request_msg):
self._log.debug(
"Received vdu on_prepare callback (xact_info: %s, action: %s): %s",
xact_info, action, request_msg)
response_xpath = ks_path.to_xpath(
RwResourceMgrYang.get_schema()) + "/resource-info"
schema = RwResourceMgrYang.VDUEventData().schema()
pathentry = schema.keyspec_to_entry(ks_path)
if action == rwdts.QueryAction.CREATE:
response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
response_info.resource_state = 'pending'
request_msg.resource_info = response_info
self.create_record_dts(
self._vdu_reg, None,
ks_path.to_xpath(RwResourceMgrYang.get_schema()),
request_msg)
asyncio.ensure_future(allocate_vdu_task(
ks_path, pathentry.key00.event_id,
request_msg.cloud_account, request_msg.request_info),
loop=self._loop)
elif action == rwdts.QueryAction.DELETE:
response_info = None
yield from self._parent.release_virtual_compute(
pathentry.key00.event_id)
self.delete_record_dts(
self._vdu_reg, None,
ks_path.to_xpath(RwResourceMgrYang.get_schema()))
elif action == rwdts.QueryAction.READ:
response_info = yield from self._parent.read_virtual_compute_info(
pathentry.key00.event_id)
else:
raise ValueError(
"Only create/delete actions available. Received action: %s"
% (action))
self._log.debug("Responding with VDUInfo at xpath %s: %s",
response_xpath, response_info)
xact_info.respond_xpath(rwdts.XactRspCode.ACK, response_xpath,
response_info)
def get_compute_reserve_msg(self, name, cloud_type, xpath, vlinks):
event_id = str(uuid.uuid4())
msg = rmgryang.VDUEventData()
msg.event_id = event_id
msg.request_info.name = name
msg.request_info.image_id = resource_requests[cloud_type]['compute'][name].image_id
attributes = ['image_id', 'vcpu_count', 'memory_mb', 'storage_gb']
if resource_requests[cloud_type]['compute'][name].has_field('vm_flavor'):
for attr in attributes:
if resource_requests[cloud_type]['compute'][name].vm_flavor.has_field(attr):
setattr(msg.request_info.vm_flavor,
attr,
getattr(resource_requests[cloud_type]['compute'][name].vm_flavor , attr))
attributes = ['mempage_size', 'cpu_pinning_policy']
if resource_requests[cloud_type]['compute'][name].has_field('guest_epa'):
for attr in attributes:
if resource_requests[cloud_type]['compute'][name].guest_epa.has_field(attr):
setattr(msg.request_info.guest_epa,
attr,
getattr(resource_requests[cloud_type]['compute'][name].guest_epa , attr))
if resource_requests[cloud_type]['compute'][name].has_field('allocate_public_address'):
msg.request_info.allocate_public_address = resource_requests[cloud_type]['compute'][name].allocate_public_address
cnt = 0
for link in vlinks:
c1 = msg.request_info.connection_points.add()
c1.name = name+"-port-"+str(cnt)
cnt += 1
c1.virtual_link_id = link
self.log.info("Sending message :%s", msg)
return msg, xpath.format(event_id)
def on_vdu_request_prepare(self, xact_info, action, ks_path, request_msg):
if not self._registered:
self._log.error("Got a prepare callback when not registered!")
xact_info.respond_xpath(rwdts.XactRspCode.NA)
return
@asyncio.coroutine
def monitor_vdu_state(response_xpath, pathentry):
self._log.info("Initiating VDU state monitoring for xpath: %s ", response_xpath)
loop_cnt = 120
while loop_cnt > 0:
self._log.debug("VDU state monitoring: Sleeping for 1 second ")
yield from asyncio.sleep(1, loop = self._loop)
try:
response_info = self._read_virtual_compute(
pathentry.key00.event_id
)
except Exception as e:
self._log.error(
"VDU state monitoring: Received exception %s "
"in VDU state monitoring for %s. Aborting monitoring",
str(e), response_xpath
)
raise
if response_info.resource_state == 'active' or response_info.resource_state == 'failed':
self._log.info(
"VDU state monitoring: VDU reached terminal state."
"Publishing VDU info: %s at path: %s",
response_info, response_xpath
)
yield from self._dts.query_update(response_xpath,
rwdts.XactFlag.ADVISE,
response_info)
return
else:
loop_cnt -= 1
### End of while loop. This is only possible if VDU did not reach active state
self._log.info("VDU state monitoring: VDU at xpath :%s did not reached active state in 120 seconds. Aborting monitoring",
response_xpath)
response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
response_info.resource_state = 'failed'
yield from self._dts.query_update(response_xpath,
rwdts.XactFlag.ADVISE,
response_info)
return
self._log.debug("Received vdu on_prepare callback (xact_info: %s, action: %s): %s",
xact_info, action, request_msg)
response_info = None
response_xpath = ks_path.to_xpath(RwResourceMgrYang.get_schema()) + "/resource-info"
schema = RwResourceMgrYang.VDUEventData().schema()
pathentry = schema.keyspec_to_entry(ks_path)
if action == rwdts.QueryAction.CREATE:
response_info = self._allocate_virtual_compute(
pathentry.key00.event_id,
request_msg.request_info,
)
if response_info.resource_state == 'pending':
asyncio.ensure_future(monitor_vdu_state(response_xpath, pathentry),
loop = self._loop)
elif action == rwdts.QueryAction.DELETE:
self._release_virtual_compute(
pathentry.key00.event_id
)
elif action == rwdts.QueryAction.READ:
response_info = self._read_virtual_compute(
pathentry.key00.event_id
)
else:
raise ValueError("Only create/delete actions available. Received action: %s" %(action))
self._log.debug("Responding with VDUInfo at xpath %s: %s",
response_xpath, response_info)
xact_info.respond_xpath(rwdts.XactRspCode.ACK, response_xpath, response_info)
