def allocate_tenant_segment(self, session):
for network_type in self.tenant_network_types:
driver = self.drivers.get(network_type)
segment = driver.obj.allocate_tenant_segment(session)
if segment:
return segment
raise exc.NoNetworkAvailable()
def reserve_tunnel(session):
with session.begin(subtransactions=True):
alloc = (session.query(
ovs_models_v2.TunnelAllocation).filter_by(allocated=False).first())
if alloc:
LOG.debug("reserving tunnel %s from pool" % alloc.tunnel_id)
alloc.allocated = True
return alloc.tunnel_id
raise q_exc.NoNetworkAvailable()
def reserve_vlan(session):
with session.begin(subtransactions=True):
alloc = (session.query(
ovs_models_v2.VlanAllocation).filter_by(allocated=False).first())
if alloc:
LOG.debug("reserving vlan %s on physical network %s from pool" %
(alloc.vlan_id, alloc.physical_network))
alloc.allocated = True
return (alloc.physical_network, alloc.vlan_id)
raise q_exc.NoNetworkAvailable()
def reserve_network(session):
with session.begin(subtransactions=True):
state = (session.query(l2network_models_v2.NetworkState).filter_by(
allocated=False).first())
if not state:
raise q_exc.NoNetworkAvailable()
LOG.debug("reserving vlan %s on physical network %s from pool" %
(state.vlan_id, state.physical_network))
state.allocated = True
return (state.physical_network, state.vlan_id)
def reserve_network(session):
with session.begin(subtransactions=True):
state = (session.query(l2network_models_v2.NetworkState).filter_by(
allocated=False).with_lockmode('update').first())
if not state:
raise q_exc.NoNetworkAvailable()
LOG.debug(
_("Reserving vlan %(vlan_id)s on physical network "
"%(physical_network)s from pool"), {
'vlan_id': state.vlan_id,
'physical_network': state.physical_network
})
state.allocated = True
return (state.physical_network, state.vlan_id)
def reserve_vlan(session):
with session.begin(subtransactions=True):
alloc = (session.query(ovs_models_v2.VlanAllocation).filter_by(
allocated=False).with_lockmode('update').first())
if alloc:
LOG.debug(
_("Reserving vlan %(vlan_id)s on physical network "
"%(physical_network)s from pool"), {
'vlan_id': alloc.vlan_id,
'physical_network': alloc.physical_network
})
alloc.allocated = True
return (alloc.physical_network, alloc.vlan_id)
raise q_exc.NoNetworkAvailable()
def reserve_flat_net(self, session):
with session.begin(subtransactions=True):
alloc_q = session.query(hyperv_model.VlanAllocation)
alloc_q = alloc_q.filter_by(allocated=False,
vlan_id=constants.FLAT_VLAN_ID)
alloc = alloc_q.first()
if alloc:
LOG.debug(
_("Reserving flat physical network "
"%(physical_network)s from pool"),
{'physical_network': alloc.physical_network})
alloc.allocated = True
return alloc.physical_network
raise q_exc.NoNetworkAvailable()
def reserve_network(session):
with session.begin(subtransactions=True):
entry = (session.query(
mlnx_models_v2.SegmentationIdAllocation).filter_by(
allocated=False).first())
if not entry:
raise q_exc.NoNetworkAvailable()
LOG.debug(
_("Reserving vlan %(seg_id)s on physical network "
"%(net)s from pool"), {
'seg_id': entry.segmentation_id,
'net': entry.physical_network
})
entry.allocated = True
return (entry.physical_network, entry.segmentation_id)
def reserve_vlan(self, session):
with session.begin(subtransactions=True):
alloc_q = session.query(hyperv_model.VlanAllocation)
alloc_q = alloc_q.filter_by(allocated=False)
alloc = alloc_q.first()
if alloc:
LOG.debug(
_("Reserving vlan %(vlan_id)s on physical network "
"%(physical_network)s from pool"), {
'vlan_id': alloc.vlan_id,
'physical_network': alloc.physical_network
})
alloc.allocated = True
return (alloc.physical_network, alloc.vlan_id)
raise q_exc.NoNetworkAvailable()
def reserve_specific_vlan(self, session, physical_network, vlan_id):
with session.begin(subtransactions=True):
try:
alloc_q = session.query(hyperv_model.VlanAllocation)
alloc_q = alloc_q.filter_by(physical_network=physical_network,
vlan_id=vlan_id)
alloc = alloc_q.one()
if alloc.allocated:
if vlan_id == constants.FLAT_VLAN_ID:
raise q_exc.FlatNetworkInUse(
physical_network=physical_network)
else:
raise q_exc.VlanIdInUse(
vlan_id=vlan_id, physical_network=physical_network)
LOG.debug(
_("Reserving specific vlan %(vlan_id)s on physical "
"network %(physical_network)s from pool"), locals())
alloc.allocated = True
except exc.NoResultFound:
raise q_exc.NoNetworkAvailable()
