def start_policy_checker_si(self):
LOG.debug("Start active_policy check for policy %s on service instance %s" % (
self.policy.name, self.service_instance.name))
while not self.is_stopped:
LOG.debug("Locking policy checking from %s" % self.policy.name)
self.lock.acquire()
LOG.debug("Locked policy checking from %s" % self.policy.name)
action = self.policy.action
if action.scaling_adjustment > 0:
if (len(self.service_instance.units) + action.scaling_adjustment) > self.service_instance.size.get(
'max'):
LOG.warning(
'Check upscaling - Maximum number of unit exceeded for service instance: %s' % self.service_instance.name)
LOG.debug("Release Policy lock by %s" % self.policy.name)
self.lock.release()
time.sleep(self.policy.period)
continue
if action.scaling_adjustment < 0:
if (len(self.service_instance.units) + action.scaling_adjustment) < self.service_instance.size.get(
'min'):
LOG.warning(
'Check downscaling - Minimum number of unit exceeded for service instance: %s' % self.service_instance.name)
LOG.debug("Release Policy lock by %s" % self.policy.name)
self.lock.release()
time.sleep(self.policy.period)
continue
if self.service_instance.state != 'UPDATING' and self.check_alarm_si():
LOG.debug('Execute action: %s' % repr(self.policy.action))
if action.adjustment_type == 'ChangeInCapacity':
self.service_instance.state = 'UPDATING'
self.topology.state = 'UPDATING'
if action.scaling_adjustment > 0:
if (len(
self.service_instance.units) + action.scaling_adjustment) <= self.service_instance.size.get(
'max'):
for i in range(action.scaling_adjustment):
_hostname = '%s-%s' % (
self.service_instance.name, str(len(self.service_instance.units) + 1))
_state = 'DEFINED'
new_unit = Unit(hostname=_hostname, state=_state)
new_unit.service_instance_id = self.service_instance.id
self.service_instance.units.append(new_unit)
self.db.persist(new_unit)
else:
LOG.warning(
'Maximum number of unit exceeded for service instance: %s' % self.service_instance.name)
else:
if (len(
self.service_instance.units) + action.scaling_adjustment) >= self.service_instance.size.get(
'min'):
for i in range(-action.scaling_adjustment):
removed_unit = self.remove_unit(self.topology, self.service_instance)
self.db.remove(removed_unit)
else:
LOG.warning(
'Minimum number of unit exceeded for service instance: %s' % self.service_instance.name)
topology = self.db.update(self.topology)
template = self.template_manager.get_template(self.topology)
# LOG.debug("Send update to heat template with: \n%s" % template)
try:
self.heat_client.update(stack_id=self.topology.ext_id, template=template)
self.wait_until_final_state()
if not self.topology.state == 'DEPLOYED':
LOG.error(
"ERROR: Something went wrong. Seems to be an error. Topology state -> %s" % self.topology.state)
self.lock.release()
return
except:
self.is_stopped = True
self.lock.release()
LOG.info('Sleeping (cooldown) for %s seconds' % self.policy.action.cooldown)
time.sleep(self.policy.action.cooldown)
LOG.debug("Release Policy lock from %s" % self.policy.name)
self.lock.release()
LOG.info('Sleeping (evaluation period) for %s seconds' % self.policy.period)
time.sleep(self.policy.period)
def start_policy_checker_si(self):
LOG.debug(
"Start active_policy check for policy %s on service instance %s" %
(self.policy.name, self.service_instance.name))
while not self.is_stopped:
LOG.debug("Locking policy checking from %s" % self.policy.name)
self.lock.acquire()
LOG.debug("Locked policy checking from %s" % self.policy.name)
action = self.policy.action
if action.scaling_adjustment > 0:
if (len(self.service_instance.units) +
action.scaling_adjustment
) > self.service_instance.size.get('max'):
LOG.warning(
'Check upscaling - Maximum number of unit exceeded for service instance: %s'
% self.service_instance.name)
LOG.debug("Release Policy lock by %s" % self.policy.name)
self.lock.release()
time.sleep(self.policy.period)
continue
if action.scaling_adjustment < 0:
if (len(self.service_instance.units) +
action.scaling_adjustment
) < self.service_instance.size.get('min'):
LOG.warning(
'Check downscaling - Minimum number of unit exceeded for service instance: %s'
% self.service_instance.name)
LOG.debug("Release Policy lock by %s" % self.policy.name)
self.lock.release()
time.sleep(self.policy.period)
continue
if self.service_instance.state != 'UPDATING' and self.check_alarm_si(
):
LOG.debug('Execute action: %s' % repr(self.policy.action))
if action.adjustment_type == 'ChangeInCapacity':
self.service_instance.state = 'UPDATING'
self.topology.state = 'UPDATING'
if action.scaling_adjustment > 0:
if (len(self.service_instance.units) +
action.scaling_adjustment
) <= self.service_instance.size.get('max'):
for i in range(action.scaling_adjustment):
_hostname = '%s-%s' % (
self.service_instance.name,
str(len(self.service_instance.units) + 1))
_state = 'DEFINED'
new_unit = Unit(hostname=_hostname,
state=_state)
new_unit.service_instance_id = self.service_instance.id
self.service_instance.units.append(new_unit)
self.db.persist(new_unit)
else:
LOG.warning(
'Maximum number of unit exceeded for service instance: %s'
% self.service_instance.name)
else:
if (len(self.service_instance.units) +
action.scaling_adjustment
) >= self.service_instance.size.get('min'):
for i in range(-action.scaling_adjustment):
removed_unit = self.remove_unit(
self.topology, self.service_instance)
self.db.remove(removed_unit)
else:
LOG.warning(
'Minimum number of unit exceeded for service instance: %s'
% self.service_instance.name)
topology = self.db.update(self.topology)
template = self.template_manager.get_template(
self.topology)
# LOG.debug("Send update to heat template with: \n%s" % template)
try:
self.heat_client.update(stack_id=self.topology.ext_id,
template=template)
self.wait_until_final_state()
if not self.topology.state == 'DEPLOYED':
LOG.error(
"ERROR: Something went wrong. Seems to be an error. Topology state -> %s"
% self.topology.state)
self.lock.release()
return
except:
self.is_stopped = True
self.lock.release()
LOG.info('Sleeping (cooldown) for %s seconds' %
self.policy.action.cooldown)
time.sleep(self.policy.action.cooldown)
LOG.debug("Release Policy lock from %s" % self.policy.name)
self.lock.release()
LOG.info('Sleeping (evaluation period) for %s seconds' %
self.policy.period)
time.sleep(self.policy.period)
def update(self, new_topology, old_topology):
conf = sys_util().get_sys_conf()
db = FactoryAgent().get_agent(conf['database_manager'])
updated_topology = old_topology
updated_topology.name = new_topology.name
#check for additional service instances and add them to the list of new instances
appended_service_instances = []
for new_service_instance in new_topology.service_instances:
is_found = False
for updated_service_instance in updated_topology.service_instances:
if new_service_instance.name == updated_service_instance.name:
is_found = True
break
if not is_found:
appended_service_instances.append(new_service_instance)
#check for removed service instances and add it to the list of removed instances
removed_service_instances = []
for updated_service_instance in updated_topology.service_instances:
is_found = False
for new_service_instance in new_topology.service_instances:
if new_service_instance.name == updated_service_instance.name:
is_found = True
break
if not is_found:
removed_service_instances.append(updated_service_instance)
#remove removed service instances
for removed_service_instance in removed_service_instances:
updated_topology.service_instances.remove(removed_service_instance)
logger.debug('Removed ServiceInstance \"%s\" from Topology \"%s\".' % (removed_service_instance.name, updated_topology.name))
#append additional service instances
for appended_service_instance in appended_service_instances:
appended_service_instance.topology_id = updated_topology.id
updated_topology.service_instances.append(appended_service_instance)
if appended_service_instance.policies is not None:
for policy in appended_service_instance.policies:
db.persist(policy)
db.persist(appended_service_instance)
logger.debug('Appended ServiceInstance \"%s\" to Topology \"%s\".' % (appended_service_instance.name, updated_topology.name))
#Update all values for each service instance
for updated_service_instance in updated_topology.service_instances:
for new_service_instance in new_topology.service_instances:
if updated_service_instance.name == new_service_instance.name:
updated_service_instance.size = new_service_instance.size
updated_service_instance.configuration = new_service_instance.configuration
updated_service_instance.policies = new_service_instance.policies
#updated_service_instance.service_type = new_service_instance.service_type
if new_service_instance.service_type and updated_service_instance.service_type != new_service_instance.service_type:
logger.warning("Cannot update service_type for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
if new_service_instance.adapter and updated_service_instance.adapter != new_service_instance.adapter:
logger.warning("Cannot update adapter for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
#updated_service_instance.flavor = new_service_instance.flavor
if new_service_instance.flavor and updated_service_instance.flavor.name != new_service_instance.flavor.name:
logger.warning("Cannot update flavor for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
#updated_service_instance.image = new_service_instance.image
if new_service_instance.image and updated_service_instance.image.name != new_service_instance.image.name:
logger.warning("Cannot update image for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
#updated_service_instance.networks = new_service_instance.networks
if new_service_instance.networks is not None:
logger.warning("Cannot update networks for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
#updated_service_instance.requirements = new_service_instance.requirements
if new_service_instance.requirements is not None:
logger.warning("Cannot update networks for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
#updated_service_instance.user_data = new_service_instance.user_data
if new_service_instance.user_data is not None:
logger.warning("Cannot update user_data for %s->%s. Not Implemented." % (updated_topology.name, updated_service_instance.name))
if new_service_instance.key and updated_service_instance.key.name != new_service_instance.key.name:
logger.warning("Cannot update key for %s->%s without replacement." % (updated_topology.name, updated_service_instance.name))
#Add or remove units according to minimal or maximal size
for updated_service_instance in updated_topology.service_instances:
if updated_service_instance not in appended_service_instances:
if len(updated_service_instance.units) < updated_service_instance.size.get('min'):
for i in range(updated_service_instance.size.get('min') - len(updated_service_instance.units)):
_hostname = '%s-%s' % (
updated_service_instance.name, str(len(updated_service_instance.units) + 1))
_state = 'DEFINED'
new_unit = Unit(hostname=_hostname, state=_state)
new_unit.service_instance_id = updated_service_instance.id
updated_service_instance.units.append(new_unit)
db.persist(new_unit)
if len(updated_service_instance.units) > updated_service_instance.size.get('max'):
for i in range(len(updated_service_instance.units) - updated_service_instance.size.get('max')):
removed_unit = updated_service_instance.units.pop(len(updated_service_instance.units) - 1)
db.remove(removed_unit)
return updated_topology
def update(self, new_topology, old_topology):
conf = sys_util().get_sys_conf()
db = FactoryAgent().get_agent(conf['database_manager'])
updated_topology = old_topology
updated_topology.name = new_topology.name
#check for additional service instances and add them to the list of new instances
appended_service_instances = []
for new_service_instance in new_topology.service_instances:
is_found = False
for updated_service_instance in updated_topology.service_instances:
if new_service_instance.name == updated_service_instance.name:
is_found = True
break
if not is_found:
appended_service_instances.append(new_service_instance)
#check for removed service instances and add it to the list of removed instances
removed_service_instances = []
for updated_service_instance in updated_topology.service_instances:
is_found = False
for new_service_instance in new_topology.service_instances:
if new_service_instance.name == updated_service_instance.name:
is_found = True
break
if not is_found:
removed_service_instances.append(updated_service_instance)
#remove removed service instances
for removed_service_instance in removed_service_instances:
updated_topology.service_instances.remove(removed_service_instance)
LOG.debug('Removed ServiceInstance \"%s\" from Topology \"%s\".' %
(removed_service_instance.name, updated_topology.name))
#append additional service instances
for appended_service_instance in appended_service_instances:
appended_service_instance.topology_id = updated_topology.id
updated_topology.service_instances.append(
appended_service_instance)
if appended_service_instance.policies is not None:
for policy in appended_service_instance.policies:
db.persist(policy)
db.persist(appended_service_instance)
LOG.debug('Appended ServiceInstance \"%s\" to Topology \"%s\".' %
(appended_service_instance.name, updated_topology.name))
#Update all values for each service instance
for updated_service_instance in updated_topology.service_instances:
for new_service_instance in new_topology.service_instances:
if updated_service_instance.name == new_service_instance.name:
updated_service_instance.size = new_service_instance.size
updated_service_instance.configuration = new_service_instance.configuration
updated_service_instance.policies = new_service_instance.policies
#updated_service_instance.service_type = new_service_instance.service_type
if new_service_instance.service_type and updated_service_instance.service_type != new_service_instance.service_type:
LOG.warning(
"Cannot update service_type for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
if new_service_instance.adapter and updated_service_instance.adapter != new_service_instance.adapter:
LOG.warning(
"Cannot update adapter for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
#updated_service_instance.flavor = new_service_instance.flavor
if new_service_instance.flavor and updated_service_instance.flavor.name != new_service_instance.flavor.name:
LOG.warning(
"Cannot update flavor for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
#updated_service_instance.image = new_service_instance.image
if new_service_instance.image and updated_service_instance.image.name != new_service_instance.image.name:
LOG.warning(
"Cannot update image for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
#updated_service_instance.networks = new_service_instance.networks
if new_service_instance.networks is not None:
LOG.warning(
"Cannot update networks for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
#updated_service_instance.requirements = new_service_instance.requirements
if new_service_instance.requirements is not None:
LOG.warning(
"Cannot update networks for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
#updated_service_instance.user_data = new_service_instance.user_data
if new_service_instance.user_data is not None:
LOG.warning(
"Cannot update user_data for %s->%s. Not Implemented."
% (updated_topology.name,
updated_service_instance.name))
if new_service_instance.key and updated_service_instance.key.name != new_service_instance.key.name:
LOG.warning(
"Cannot update key for %s->%s without replacement."
% (updated_topology.name,
updated_service_instance.name))
#Add or remove units according to minimal or maximal size
for updated_service_instance in updated_topology.service_instances:
if updated_service_instance not in appended_service_instances:
if len(updated_service_instance.units
) < updated_service_instance.size.get('min'):
for i in range(
updated_service_instance.size.get('min') -
len(updated_service_instance.units)):
_hostname = '%s-%s' % (
updated_service_instance.name,
str(len(updated_service_instance.units) + 1))
_state = 'DEFINED'
new_unit = Unit(hostname=_hostname, state=_state)
new_unit.service_instance_id = updated_service_instance.id
updated_service_instance.units.append(new_unit)
db.persist(new_unit)
if len(updated_service_instance.units
) > updated_service_instance.size.get('max'):
for i in range(
len(updated_service_instance.units) -
updated_service_instance.size.get('max')):
removed_unit = updated_service_instance.units.pop(
len(updated_service_instance.units) - 1)
db.remove(removed_unit)
return updated_topology
def start_policy_checker_si(self):
logger.debug(
"Start active_policy check for policy %s on service instance %s"
% (self.policy.name, self.service_instance.name)
)
while not self.is_stopped:
logger.debug("Locking policy checking from %s" % self.policy.name)
self.lock.acquire()
logger.debug("Locked policy checking from %s" % self.policy.name)
action = self.policy.action
if action.scaling_adjustment > 0:
if (len(self.service_instance.units) + action.scaling_adjustment) > self.service_instance.size.get(
"max"
):
logger.warning(
"Check upscaling - Maximum number of unit exceeded for service instance: %s"
% self.service_instance.name
)
logger.debug("Release Policy lock by %s" % self.policy.name)
self.lock.release()
time.sleep(self.policy.period)
continue
if action.scaling_adjustment < 0:
if (len(self.service_instance.units) + action.scaling_adjustment) < self.service_instance.size.get(
"min"
):
logger.warning(
"Check downscaling - Minimum number of unit exceeded for service instance: %s"
% self.service_instance.name
)
logger.debug("Release Policy lock by %s" % self.policy.name)
self.lock.release()
time.sleep(self.policy.period)
continue
if self.service_instance.state != "UPDATING" and self.check_alarm_si():
logger.debug("Execute action: %s" % repr(self.policy.action))
if action.adjustment_type == "ChangeInCapacity":
self.service_instance.state = "UPDATING"
self.topology.state = "UPDATING"
if action.scaling_adjustment > 0:
logger.info("executing scaling out action ")
info = {
"so_id": "idnotusefulhere",
"sm_name": "imsaas",
"so_phase": "update",
"phase_event": "start",
"response_time": 0,
"tenant": "mcntub",
}
self.start_time = time.time()
info_json = json.dumps(info)
glogger.debug(info_json)
if (
len(self.service_instance.units) + action.scaling_adjustment
) <= self.service_instance.size.get("max"):
for i in range(action.scaling_adjustment):
_hostname = "%s-%s" % (
self.service_instance.name,
str(len(self.service_instance.units) + 1),
)
_state = "DEFINED"
new_unit = Unit(hostname=_hostname, state=_state)
new_unit.service_instance_id = self.service_instance.id
self.service_instance.units.append(new_unit)
self.db.persist(new_unit)
else:
logger.warning(
"Maximum number of unit exceeded for service instance: %s" % self.service_instance.name
)
else:
logger.info("executing scaling in action ")
if (
len(self.service_instance.units) + action.scaling_adjustment
) >= self.service_instance.size.get("min"):
for i in range(-action.scaling_adjustment):
removed_unit = self.remove_unit(self.topology, self.service_instance)
self.db.remove(removed_unit)
else:
logger.warning(
"Minimum number of unit exceeded for service instance: %s" % self.service_instance.name
)
topology = self.db.update(self.topology)
template = self.template_manager.get_template(self.topology)
# logger.debug("Send update to heat template with: \n%s" % template)
if action.scaling_adjustment <= 0:
logger.info("provisioning the unit after scaling in operation")
self.configure_after_scaling(removed_unit)
try:
logger.info("updating the heat template including new units")
self.heat_client.update(stack_id=self.topology.ext_id, template=template)
self.wait_until_final_state()
logger.info("wait until final state function executed")
if self.topology.state not in ["DEPLOYED", "UPDATED"]:
logger.error(
"ERROR: Something went wrong. Seems to be an error. Topology state -> %s"
% self.topology.state
)
self.lock.release()
return
except:
self.is_stopped = True
self.lock.release()
logger.info("entering provisioning phase")
if action.scaling_adjustment > 0:
logger.info("provisioning new unit after scaling out operation")
# adding relations between newly added unit and existing units from dependent services
self.configure_new_unit(new_unit)
logger.info("Sleeping (cooldown) for %s seconds" % self.policy.action.cooldown)
time.sleep(self.policy.action.cooldown)
logger.debug("Release Policy lock from %s" % self.policy.name)
self.lock.release()
logger.info("Sleeping (evaluation period) for %s seconds" % self.policy.period)
time.sleep(self.policy.period)
