def _test_lb_and_listener_statuses(
self,
session,
lb_id,
id=None,
listener_status=constants.PENDING_UPDATE):
"""Verify load balancer is in a mutable state."""
lb_repo = self.repositories.load_balancer
if id:
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session,
lb_id,
constants.PENDING_UPDATE,
listener_status,
listener_ids=[id]):
LOG.info(_LI("Load Balancer %s is immutable."), lb_id)
db_lb = lb_repo.get(session, id=lb_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=lb_id)
else:
if not lb_repo.test_and_set_provisioning_status(
session, lb_id, constants.PENDING_UPDATE):
db_lb = lb_repo.get(session, id=lb_id)
LOG.info(_LI("Load Balancer %s is immutable."), db_lb.id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=lb_id)
def delete(self, id):
"""Deletes a pool member."""
session = db_api.get_session()
db_member = self.repositories.member.get(session, id=id)
if not db_member:
LOG.info(_LI("Member %s not found"), id)
raise exceptions.NotFound(resource=data_models.Member._name(),
id=id)
# Verify load balancer is in a mutable status. If so it can be assumed
# that the listener is also in a mutable status because a load balancer
# will only be ACTIVE when all its listeners as ACTIVE.
if not self.repositories.test_and_set_lb_and_listener_prov_status(
session, self.load_balancer_id, self.listener_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE):
LOG.info(
_LI("Member %s cannot be deleted because its Load "
"Balancer is in an immutable state."), id)
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
db_member = self.repositories.member.get(session, id=id)
try:
LOG.info(_LI("Sending Deletion of Member %s to handler"),
db_member.id)
self.handler.delete(db_member)
except Exception:
with excutils.save_and_reraise_exception(reraise=False):
self.repositories.listener.update(
session,
self.listener_id,
operating_status=constants.ERROR)
db_member = self.repositories.member.get(session, id=id)
return self._convert_db_to_type(db_member, member_types.MemberResponse)
def put(self, id, load_balancer):
"""Updates a load balancer."""
session = db_api.get_session()
# Purely to make lines smaller length
lb_repo = self.repositories.load_balancer
db_lb = self.repositories.load_balancer.get(session, id=id)
if not db_lb:
LOG.info(_LI("Load Balancer %s was not found."), id)
raise exceptions.NotFound(
resource=data_models.LoadBalancer._name(), id=id)
# Check load balancer is in a mutable status
if not lb_repo.test_and_set_provisioning_status(
session, id, constants.PENDING_UPDATE):
LOG.info(_LI("Load Balancer %s is immutable."), id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=id)
try:
LOG.info(_LI("Sending updated Load Balancer %s to the handler"),
id)
self.handler.update(db_lb, load_balancer)
except Exception:
with excutils.save_and_reraise_exception(reraise=False):
self.repositories.load_balancer.update(
session, id, provisioning_status=constants.ERROR)
lb = self.repositories.load_balancer.get(session, id=id)
return self._convert_db_to_type(lb, lb_types.LoadBalancerResponse)
def _test_lb_status(self, session, id, lb_status=constants.PENDING_UPDATE):
"""Verify load balancer is in a mutable state."""
lb_repo = self.repositories.load_balancer
if not lb_repo.test_and_set_provisioning_status(
session, id, lb_status):
LOG.info(_LI("Load Balancer %s is immutable."), id)
db_lb = lb_repo.get(session, id=id)
raise exceptions.ImmutableObject(resource=db_lb._name(), id=id)
def _test_lb_listener_policy_statuses(self, session):
"""Verify load balancer is in a mutable state."""
l7policy = self._get_db_l7policy(session, self.l7policy_id)
listener_id = l7policy.listener_id
load_balancer_id = l7policy.listener.load_balancer_id
# Check the parent is not locked for some reason (ERROR, etc.)
if l7policy.provisioning_status not in constants.MUTABLE_STATUSES:
raise exceptions.ImmutableObject(resource='L7Policy',
id=self.l7policy_id)
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=[listener_id], l7policy_id=self.l7policy_id):
LOG.info("L7Rule cannot be created or modified because the "
"Load Balancer is in an immutable state")
raise exceptions.ImmutableObject(resource='Load Balancer',
id=load_balancer_id)
def _test_lb_status_post(self, session, lb_repo):
"""Verify load balancer is in a mutable status for post method."""
if not lb_repo.test_and_set_provisioning_status(
session, self.load_balancer_id, constants.PENDING_UPDATE):
db_lb = lb_repo.get(session, id=self.load_balancer_id)
LOG.info(_LI("Load Balancer %s is immutable."), db_lb.id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
def _test_lb_and_listener_and_pool_statuses(self, session, member=None):
"""Verify load balancer is in a mutable state."""
# We need to verify that any listeners referencing this member's
# pool are also mutable
pool = self._get_db_pool(session, self.pool_id)
# Check the parent is not locked for some reason (ERROR, etc.)
if pool.provisioning_status not in constants.MUTABLE_STATUSES:
raise exceptions.ImmutableObject(resource='Pool', id=self.pool_id)
load_balancer_id = pool.load_balancer_id
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=self._get_affected_listener_ids(session, member),
pool_id=self.pool_id):
LOG.info("Member cannot be created or modified because the "
"Load Balancer is in an immutable state")
raise exceptions.ImmutableObject(resource='Load Balancer',
id=load_balancer_id)
def _test_lb_and_listener_statuses(self, session, lb_id, listener_ids):
"""Verify load balancer is in a mutable state."""
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, lb_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=listener_ids):
LOG.info("L7Policy cannot be created or modified because the "
"Load Balancer is in an immutable state")
raise exceptions.ImmutableObject(resource='Load Balancer',
id=lb_id)
def _test_lb_status_put(self, session, id):
"""Test load balancer status for put method."""
if not self.repositories.test_and_set_lb_and_listener_prov_status(
session, self.load_balancer_id, id, constants.PENDING_UPDATE,
constants.PENDING_UPDATE):
LOG.info(_LI("Load Balancer %s is immutable."),
self.load_balancer_id)
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
def post(self, health_monitor):
"""Creates a health monitor on a pool."""
session = db_api.get_session()
try:
db_hm = self.repositories.health_monitor.get(session,
pool_id=self.pool_id)
if db_hm:
raise exceptions.DuplicateHealthMonitor()
except exceptions.NotFound:
pass
hm_dict = health_monitor.to_dict()
hm_dict['pool_id'] = self.pool_id
# Verify load balancer is in a mutable status. If so it can be assumed
# that the listener is also in a mutable status because a load balancer
# will only be ACTIVE when all it's listeners as ACTIVE.
if not self.repositories.test_and_set_lb_and_listener_prov_status(
session, self.load_balancer_id, self.listener_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE):
LOG.info(
_LI("Health Monitor for Pool %s cannot be updated "
"because the Load Balancer is immutable."), self.pool_id)
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
try:
db_hm = self.repositories.health_monitor.create(session, **hm_dict)
except odb_exceptions.DBError:
# Setting LB and Listener back to active because this is just a
# validation failure
self.repositories.load_balancer.update(
session,
self.load_balancer_id,
provisioning_status=constants.ACTIVE)
self.repositories.listener.update(
session,
self.listener_id,
provisioning_status=constants.ACTIVE)
raise exceptions.InvalidOption(value=hm_dict.get('type'),
option='type')
try:
LOG.info(
_LI("Sending Creation of Health Monitor for Pool %s to "
"handler"), self.pool_id)
self.handler.create(db_hm)
except Exception:
with excutils.save_and_reraise_exception(reraise=False):
self.repositories.listener.update(
session,
self.listener_id,
operating_status=constants.ERROR)
db_hm = self.repositories.health_monitor.get(session,
pool_id=self.pool_id)
return self._convert_db_to_type(db_hm, hm_types.HealthMonitorResponse)
def _test_lb_and_listener_statuses(self, session):
"""Verify load balancer is in a mutable state."""
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, self.load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=[self.listener_id]):
LOG.info("L7Policy cannot be created or modified because the "
"Load Balancer is in an immutable state")
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
def _test_lb_and_listener_statuses(self, session, lb_id, listener_ids):
"""Verify load balancer is in a mutable state."""
# We need to verify that any listeners referencing this pool are also
# mutable
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, lb_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=listener_ids):
LOG.info("Pool cannot be created or modified because the Load "
"Balancer is in an immutable state")
raise exceptions.ImmutableObject(resource=_('Load Balancer'),
id=lb_id)
def _test_lb_status(self, session):
"""Verify load balancer is in a mutable status."""
if not self.repositories.test_and_set_lb_and_listener_prov_status(
session, self.load_balancer_id, self.listener_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE):
LOG.info(
_LI("Pool cannot be created because the Load "
"Balancer is in an immutable state"))
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
def _test_lb_listener_policy_statuses(self, session):
"""Verify load balancer is in a mutable state."""
l7policy = self._get_db_l7policy(session, self.l7policy_id)
listener_id = l7policy.listener_id
load_balancer_id = l7policy.listener.load_balancer_id
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=[listener_id], l7policy_id=self.l7policy_id):
LOG.info("L7Rule cannot be created or modified because the "
"Load Balancer is in an immutable state")
raise exceptions.ImmutableObject(resource='Load Balancer',
id=load_balancer_id)
def post(self, member):
"""Creates a pool member on a pool."""
session = db_api.get_session()
member_dict = member.to_dict()
member_dict['pool_id'] = self.pool_id
member_dict['operating_status'] = constants.OFFLINE
# Verify load balancer is in a mutable status. If so it can be assumed
# that the listener is also in a mutable status because a load balancer
# will only be ACTIVE when all its listeners as ACTIVE.
if not self.repositories.test_and_set_lb_and_listener_prov_status(
session, self.load_balancer_id, self.listener_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE):
LOG.info(
_LI("Member cannot be created because its Load "
"Balancer is in an immutable state."))
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
try:
db_member = self.repositories.member.create(session, **member_dict)
except oslo_exc.DBDuplicateEntry as de:
# Setting LB and Listener back to active because this is just a
# validation failure
self.repositories.load_balancer.update(
session,
self.load_balancer_id,
provisioning_status=constants.ACTIVE)
self.repositories.listener.update(
session,
self.listener_id,
provisioning_status=constants.ACTIVE)
if ['id'] == de.columns:
raise exceptions.IDAlreadyExists()
elif (set(['pool_id', 'ip_address',
'protocol_port']) == set(de.columns)):
raise exceptions.DuplicateMemberEntry(
ip_address=member_dict.get('ip_address'),
port=member_dict.get('protocol_port'))
try:
LOG.info(_LI("Sending Creation of Member %s to handler"),
db_member.id)
self.handler.create(db_member)
except Exception:
with excutils.save_and_reraise_exception(reraise=False):
self.repositories.listener.update(
session,
self.listener_id,
operating_status=constants.ERROR)
db_member = self.repositories.member.get(session, id=db_member.id)
return self._convert_db_to_type(db_member, member_types.MemberResponse)
def _test_lb_and_listener_statuses(self, session, pool=None):
"""Verify load balancer is in a mutable state."""
# We need to verify that any listeners referencing this pool are also
# mutable
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, self.load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=self._get_affected_listener_ids(session, pool)):
LOG.info("Pool cannot be created or modified because the Load "
"Balancer is in an immutable state")
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
def _test_lb_and_listener_and_pool_statuses(self, session, member=None):
"""Verify load balancer is in a mutable state."""
# We need to verify that any listeners referencing this member's
# pool are also mutable
pool = self._get_db_pool(session, self.pool_id)
load_balancer_id = pool.load_balancer_id
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=self._get_affected_listener_ids(session, member),
pool_id=self.pool_id):
LOG.info(_LI("Member cannot be created or modified because the "
"Load Balancer is in an immutable state"))
raise exceptions.ImmutableObject(resource='Load Balancer',
id=load_balancer_id)
def _test_lb_and_listener_and_pool_statuses(self, session, hm):
"""Verify load balancer is in a mutable state."""
# We need to verify that any listeners referencing this pool are also
# mutable
pool = self.repositories.pool.get(session, id=hm.pool_id)
load_balancer_id = pool.load_balancer_id
if not self.repositories.test_and_set_lb_and_listeners_prov_status(
session, load_balancer_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE,
listener_ids=self._get_affected_listener_ids(session, hm),
pool_id=hm.pool_id):
LOG.info("Health Monitor cannot be created or modified because "
"the Load Balancer is in an immutable state")
raise exceptions.ImmutableObject(resource='Load Balancer',
id=load_balancer_id)
def put(self, health_monitor):
"""Updates a health monitor.
Updates a health monitor on a pool if it exists. Only one health
monitor is allowed per pool so there is no need for a health monitor
id.
"""
session = db_api.get_session()
db_hm = self.repositories.health_monitor.get(session,
pool_id=self.pool_id)
if not db_hm:
LOG.info(_LI("Health Monitor for Pool %s was not found"),
self.pool_id)
raise exceptions.NotFound(
resource=data_models.HealthMonitor._name(), id=id)
# Verify load balancer is in a mutable status. If so it can be assumed
# that the listener is also in a mutable status because a load balancer
# will only be ACTIVE when all it's listeners as ACTIVE.
if not self.repositories.test_and_set_lb_and_listener_prov_status(
session, self.load_balancer_id, self.listener_id,
constants.PENDING_UPDATE, constants.PENDING_UPDATE):
LOG.info(
_LI("Health Monitor for Pool %s cannot be updated "
"because the Load Balancer is immutable."), self.pool_id)
lb_repo = self.repositories.load_balancer
db_lb = lb_repo.get(session, id=self.load_balancer_id)
raise exceptions.ImmutableObject(resource=db_lb._name(),
id=self.load_balancer_id)
try:
LOG.info(
_LI("Sending Update of Health Monitor for Pool %s to "
"handler"), self.pool_id)
self.handler.update(db_hm, health_monitor)
except Exception:
with excutils.save_and_reraise_exception(reraise=False):
self.repositories.listener.update(
session,
self.listener_id,
operating_status=constants.ERROR)
db_hm = self.repositories.health_monitor.get(session,
pool_id=self.pool_id)
return self._convert_db_to_type(db_hm, hm_types.HealthMonitorResponse)