def _handle_port_migration_precommit(self, context):
"""Handles port migration in precommit
It updates the port's new host in the DB
"""
orig_port = context.original
orig_host = context.original_host
orig_status = context.original_status
new_status = context.status
new_host = context.host
port_id = orig_port['id']
if (new_host != orig_host and orig_status == n_const.PORT_STATUS_ACTIVE
and new_status == n_const.PORT_STATUS_DOWN):
LOG.debug("Handling port migration for: %s " % orig_port)
network_id = orig_port['network_id']
tenant_id = orig_port['tenant_id'] or INTERNAL_TENANT_ID
# Ensure that we use tenant Id for the network owner
tenant_id = self._network_owner_tenant(context, network_id,
tenant_id)
device_id = orig_port['device_id']
with self.eos_sync_lock:
port_provisioned = db_lib.is_port_provisioned(
port_id, orig_host)
if port_provisioned:
db_lib.update_port(device_id, new_host, port_id,
network_id, tenant_id)
return True
def update_port_precommit(self, context):
"""Update the name of a given port.
At the moment we only support port name change.
Any other change to port is not supported at this time.
We do not store the port names, therefore, no DB store
action is performed here.
"""
new_port = context.current
orig_port = context.original
if new_port['name'] != orig_port['name']:
LOG.info(_LI('Port name changed to %s'), new_port['name'])
new_port = context.current
device_id = new_port['device_id']
host = context.host
# device_id and device_owner are set on VM boot
port_id = new_port['id']
network_id = new_port['network_id']
tenant_id = new_port['tenant_id'] or INTERNAL_TENANT_ID
with self.eos_sync_lock:
port_provisioned = db_lib.is_port_provisioned(port_id)
if not port_provisioned:
# Create a new port in the DB
db_lib.remember_tenant(tenant_id)
db_lib.remember_vm(device_id, host, port_id,
network_id, tenant_id)
else:
# Port exists in the DB. Update it
db_lib.update_port(device_id, host, port_id,
network_id, tenant_id)
def delete_port_precommit(self, context):
"""Delete information about a VM and host from the DB."""
port = context.current
port_id = port['id']
with self.eos_sync_lock:
if db_lib.is_port_provisioned(port_id):
db_lib.forget_vm_port(port_id)
def create_port_postcommit(self, context):
"""Plug a physical host into a network.
Send provisioning request to Arista Hardware to plug a host
into appropriate network.
"""
port = context.current
device_id = port['device_id']
device_owner = port['device_owner']
host = context.host
profile = []
vnic_type = port['binding:vnic_type']
binding_profile = port['binding:profile']
if binding_profile:
profile = binding_profile['local_link_information']
pretty_log("create_port_postcommit:", port)
sg = port['security_groups']
# device_id and device_owner are set on VM boot
is_vm_boot = device_id and device_owner
if host and is_vm_boot:
port_id = port['id']
port_name = port['name']
network_id = port['network_id']
tenant_id = port['tenant_id'] or INTERNAL_TENANT_ID
# Ensure that we use tenant Id for the network owner
tenant_id = self._network_owner_tenant(context,
network_id,
tenant_id)
with self.eos_sync_lock:
hostname = self._host_name(host)
port_provisioned = db_lib.is_port_provisioned(port_id)
# If network does not exist under this tenant,
# it may be a shared network. Get shared network owner Id
if port_provisioned and self._network_provisioned(tenant_id,
network_id):
try:
self.rpc.plug_port_into_network(device_id,
hostname,
port_id,
network_id,
tenant_id,
port_name,
device_owner,
sg, [],
vnic_type,
profile=profile)
except arista_exc.AristaRpcError as err:
LOG.error(_LE('create_port_postcommit: Did not create '
'port %(port_id)s. Reason: %(err)s'),
{'port_id': port_id, 'err': err})
else:
LOG.info(_LI('VM %s is not created as it is not found in '
'Arista DB'), device_id)
def update_port_postcommit(self, context):
"""Update the name of a given port in EOS.
At the moment we only support port name change
Any other change to port is not supported at this time.
"""
port = context.current
orig_port = context.original
device_id = port['device_id']
device_owner = port['device_owner']
host = context.host
is_vm_boot = device_id and device_owner
port_id = port['id']
port_name = port['name']
network_id = port['network_id']
tenant_id = port['tenant_id'] or INTERNAL_TENANT_ID
with self.eos_sync_lock:
hostname = self._host_name(host)
segmentation_id = db_lib.get_segmentation_id(tenant_id,
network_id)
port_provisioned = db_lib.is_port_provisioned(port_id)
# If network does not exist under this tenant,
# it may be a shared network. Get shared network owner Id
net_provisioned = (
db_lib.is_network_provisioned(tenant_id, network_id,
segmentation_id) or
self.ndb.get_shared_network_owner_id(network_id)
)
try:
orig_host = orig_port['binding:host_id']
if host != orig_host:
try:
# The port moved to a different host or the VM
# connected to the port was deleted. So delete the
# old port on the old host.
self._delete_port(orig_port, orig_host, tenant_id)
except ml2_exc.MechanismDriverError:
# If deleting a port fails, then not much can be done
# about it. Log a warning and move on.
LOG.warn(UNABLE_TO_DELETE_PORT_MSG)
if(port_provisioned and net_provisioned and hostname and
is_vm_boot):
# Plug port into the network only if it exists on a host
# and if it has an owner
self.rpc.plug_port_into_network(device_id,
hostname,
port_id,
network_id,
tenant_id,
port_name,
device_owner)
except arista_exc.AristaRpcError:
LOG.info(EOS_UNREACHABLE_MSG)
raise ml2_exc.MechanismDriverError()
def delete_port_precommit(self, context):
"""Delete information about a VM and host from the DB."""
port = context.current
pretty_log("delete_port_precommit:", port)
port_id = port['id']
host_id = context.host
with self.eos_sync_lock:
if db_lib.is_port_provisioned(port_id):
db_lib.forget_port(port_id, host_id)
def create_port_postcommit(self, context):
"""Plug a physical host into a network.
Send provisioning request to Arista Hardware to plug a host
into appropriate network.
"""
port = context.current
device_id = port['device_id']
device_owner = port['device_owner']
host = context.host
# device_id and device_owner are set on VM boot
is_vm_boot = device_id and device_owner
if host and is_vm_boot:
port_id = port['id']
port_name = port['name']
network_id = port['network_id']
tenant_id = port['tenant_id'] or INTERNAL_TENANT_ID
with self.eos_sync_lock:
hostname = self._host_name(host)
port_provisioned = db_lib.is_port_provisioned(port_id)
# If network does not exist under this tenant,
# it may be a shared network. Get shared network owner Id
net_provisioned = (
db_lib.is_network_provisioned(tenant_id, network_id) or
self.ndb.get_shared_network_owner_id(network_id)
)
if port_provisioned and net_provisioned:
try:
self.rpc.plug_port_into_network(device_id,
hostname,
port_id,
network_id,
tenant_id,
port_name,
device_owner)
except arista_exc.AristaRpcError:
LOG.info(EOS_UNREACHABLE_MSG)
raise ml2_exc.MechanismDriverError()
else:
LOG.info(_LI('VM %s is not created as it is not found in '
'Arista DB'), device_id)
def update_port_postcommit(self, context):
"""Update the name of a given port in EOS.
At the moment we only support port name change
Any other change to port is not supported at this time.
"""
port = context.current
orig_port = context.original
device_id = port['device_id']
device_owner = port['device_owner']
host = context.host
is_vm_boot = device_id and device_owner
vnic_type = port['binding:vnic_type']
binding_profile = port['binding:profile']
bindings = []
if binding_profile:
bindings = binding_profile['local_link_information']
port_id = port['id']
port_name = port['name']
network_id = port['network_id']
tenant_id = port['tenant_id'] or INTERNAL_TENANT_ID
# Ensure that we use tenant Id for the network owner
tenant_id = self._network_owner_tenant(context, network_id, tenant_id)
sg = port['security_groups']
orig_sg = orig_port['security_groups']
pretty_log("update_port_postcommit: new", port)
pretty_log("update_port_postcommit: orig", orig_port)
# Check if it is port migration case
if self._handle_port_migration_postcommit(context):
# Return from here as port migration is already handled.
return
seg_info = self._bound_segments(context)
if not seg_info:
LOG.debug("Ignoring the update as the port is not managed by "
"Arista switches.")
return
with self.eos_sync_lock:
hostname = self._host_name(host)
segmentation_id = seg_info[driver_api.SEGMENTATION_ID]
port_host_filter = None
if (port['device_owner'] == n_const.DEVICE_OWNER_DVR_INTERFACE):
# <port, host> uniquely identifies a DVR port. Other
# ports are identified by just the port id
port_host_filter = host
port_provisioned = db_lib.is_port_provisioned(
port_id, port_host_filter)
# If network does not exist under this tenant,
# it may be a shared network. Get shared network owner Id
net_provisioned = self._network_provisioned(
tenant_id, network_id, segmentation_id=segmentation_id)
segments = []
if net_provisioned:
if self.rpc.hpb_supported():
for binding_level in context.binding_levels:
bound_segment = binding_level.get(
driver_api.BOUND_SEGMENT)
if bound_segment:
segments.append(bound_segment)
all_segments = self.ndb.get_all_network_segments(
network_id, context=context._plugin_context)
try:
self.rpc.create_network_segments(
tenant_id, network_id,
context.network.current['name'], all_segments)
except arista_exc.AristaRpcError:
LOG.error(_LE("Failed to create network segments"))
raise ml2_exc.MechanismDriverError()
else:
# For non HPB cases, the port is bound to the static
# segment
segments = self.ndb.get_network_segments(network_id)
try:
orig_host = context.original_host
port_down = False
if (port['device_owner'] == n_const.DEVICE_OWNER_DVR_INTERFACE
):
# We care about port status only for DVR ports
port_down = context.status == n_const.PORT_STATUS_DOWN
if orig_host and (port_down or host != orig_host):
try:
LOG.info("Deleting the port %s" % str(orig_port))
# The port moved to a different host or the VM
# connected to the port was deleted or its in DOWN
# state. So delete the old port on the old host.
self._delete_port(orig_port, orig_host, tenant_id)
except ml2_exc.MechanismDriverError:
# If deleting a port fails, then not much can be done
# about it. Log a warning and move on.
LOG.warning(UNABLE_TO_DELETE_PORT_MSG)
if (port_provisioned and net_provisioned and hostname
and is_vm_boot and not port_down):
LOG.info(_LI("Port plugged into network"))
# Plug port into the network only if it exists in the db
# and is bound to a host and the port is up.
self.rpc.plug_port_into_network(device_id,
hostname,
port_id,
network_id,
tenant_id,
port_name,
device_owner,
sg,
orig_sg,
vnic_type,
segments=segments,
switch_bindings=bindings)
else:
LOG.info(_LI("Port not plugged into network"))
except arista_exc.AristaRpcError as err:
LOG.error(
_LE('update_port_postcommit: Did not update '
'port %(port_id)s. Reason: %(err)s'), {
'port_id': port_id,
'err': err
})
def update_port_precommit(self, context):
"""Update the name of a given port.
At the moment we only support port name change.
Any other change to port is not supported at this time.
We do not store the port names, therefore, no DB store
action is performed here.
"""
new_port = context.current
orig_port = context.original
if new_port['name'] != orig_port['name']:
LOG.info(_LI('Port name changed to %s'), new_port['name'])
device_id = new_port['device_id']
host = context.host
pretty_log("update_port_precommit: new", new_port)
pretty_log("update_port_precommit: orig", orig_port)
if new_port['device_owner'] == 'compute:probe':
return
# Check if it is port migration case
if self._handle_port_migration_precommit(context):
return
# Check if the port is part of managed physical network
seg_info = self._bound_segments(context)
if not seg_info:
# Ignoring the update as the port is not managed by
# arista mechanism driver.
return
# device_id and device_owner are set on VM boot
port_id = new_port['id']
network_id = new_port['network_id']
tenant_id = new_port['tenant_id'] or INTERNAL_TENANT_ID
# Ensure that we use tenant Id for the network owner
tenant_id = self._network_owner_tenant(context, network_id, tenant_id)
if not self._network_provisioned(tenant_id, network_id,
seg_info[driver_api.SEGMENTATION_ID],
seg_info[driver_api.ID]):
if not self.rpc.hpb_supported():
LOG.info(
_LI("Ignoring port %(port)s conntected to "
"%(net_id)s"), {
'port': port_id,
'net_id': network_id
})
return
LOG.info(_LI("Adding %s to provisioned network database"),
seg_info)
with self.eos_sync_lock:
db_lib.remember_tenant(tenant_id)
db_lib.remember_network_segment(
tenant_id, network_id,
seg_info[driver_api.SEGMENTATION_ID],
seg_info[driver_api.ID])
with self.eos_sync_lock:
port_down = False
if (new_port['device_owner'] == n_const.DEVICE_OWNER_DVR_INTERFACE
):
# We care about port status only for DVR ports because
# for DVR, a single port exists on multiple hosts. If a port
# is no longer needed on a host then the driver gets a
# port_update notification for that <port, host> with the
# port status as PORT_STATUS_DOWN.
port_down = context.status == n_const.PORT_STATUS_DOWN
if host and not port_down:
port_host_filter = None
if (new_port['device_owner'] ==
n_const.DEVICE_OWNER_DVR_INTERFACE):
# <port, host> uniquely identifies a DVR port. Other
# ports are identified by just the port id
port_host_filter = host
port_provisioned = db_lib.is_port_provisioned(
port_id, port_host_filter)
if not port_provisioned:
LOG.info("Remembering the port")
# Create a new port in the DB
db_lib.remember_tenant(tenant_id)
db_lib.remember_vm(device_id, host, port_id, network_id,
tenant_id)
else:
if (new_port['device_id'] != orig_port['device_id']
or context.host != context.original_host or
new_port['network_id'] != orig_port['network_id']
or
new_port['tenant_id'] != orig_port['tenant_id']):
LOG.info("Updating the port")
# Port exists in the DB. Update it
db_lib.update_port(device_id, host, port_id,
network_id, tenant_id)
else: # Unbound or down port does not concern us
orig_host = context.original_host
LOG.info("Forgetting the port on %s" % str(orig_host))
db_lib.forget_port(port_id, orig_host)
def update_port_postcommit(self, context):
"""Update the name of a given port in EOS.
At the moment we only support port name change
Any other change to port is not supported at this time.
"""
port = context.current
orig_port = context.original
device_id = port['device_id']
device_owner = port['device_owner']
host = context.host
is_vm_boot = device_id and device_owner
vnic_type = port['binding:vnic_type']
binding_profile = port['binding:profile']
profile = []
if binding_profile:
profile = binding_profile['local_link_information']
port_id = port['id']
port_name = port['name']
network_id = port['network_id']
tenant_id = port['tenant_id'] or INTERNAL_TENANT_ID
sg = port['security_groups']
orig_sg = orig_port['security_groups']
pretty_log("update_port_postcommit: new", port)
pretty_log("update_port_postcommit: orig", orig_port)
with self.eos_sync_lock:
hostname = self._host_name(host)
segmentation_id = db_lib.get_segmentation_id(tenant_id,
network_id)
port_host_filter = None
if(port['device_owner'] ==
n_const.DEVICE_OWNER_DVR_INTERFACE):
# <port, host> uniquely identifies a DVR port. Other
# ports are identified by just the port id
port_host_filter = host
port_provisioned = db_lib.is_port_provisioned(port_id,
port_host_filter)
# If network does not exist under this tenant,
# it may be a shared network. Get shared network owner Id
net_provisioned = self._network_provisioned(tenant_id, network_id,
segmentation_id)
try:
orig_host = context.original_host
port_down = False
if(port['device_owner'] == n_const.DEVICE_OWNER_DVR_INTERFACE):
# We care about port status only for DVR ports
port_down = context.status == n_const.PORT_STATUS_DOWN
if orig_host and (port_down or host != orig_host):
try:
LOG.info("Deleting the port %s" % str(orig_port))
# The port moved to a different host or the VM
# connected to the port was deleted or its in DOWN
# state. So delete the old port on the old host.
self._delete_port(orig_port, orig_host, tenant_id)
except ml2_exc.MechanismDriverError:
# If deleting a port fails, then not much can be done
# about it. Log a warning and move on.
LOG.warn(UNABLE_TO_DELETE_PORT_MSG)
if(port_provisioned and net_provisioned and hostname and
is_vm_boot and not port_down):
LOG.info(_LI("Port plugged into network"))
# Plug port into the network only if it exists in the db
# and is bound to a host and the port is up.
self.rpc.plug_port_into_network(device_id,
hostname,
port_id,
network_id,
tenant_id,
port_name,
device_owner,
sg, orig_sg,
vnic_type,
profile=profile)
else:
LOG.info(_LI("Port not plugged into network"))
except arista_exc.AristaRpcError as err:
LOG.error(_LE('update_port_postcommit: Did not update '
'port %(port_id)s. Reason: %(err)s'),
{'port_id': port_id, 'err': err})
def update_port_precommit(self, context):
"""Update the name of a given port.
At the moment we only support port name change.
Any other change to port is not supported at this time.
We do not store the port names, therefore, no DB store
action is performed here.
"""
new_port = context.current
orig_port = context.original
if new_port['name'] != orig_port['name']:
LOG.info(_LI('Port name changed to %s'), new_port['name'])
new_port = context.current
device_id = new_port['device_id']
host = context.host
pretty_log("update_port_precommit: new", new_port)
pretty_log("update_port_precommit: orig", orig_port)
if new_port['device_owner'] == 'compute:probe':
return
# device_id and device_owner are set on VM boot
port_id = new_port['id']
network_id = new_port['network_id']
tenant_id = new_port['tenant_id'] or INTERNAL_TENANT_ID
# Ensure that we use tenant Id for the network owner
tenant_id = self._network_owner_tenant(context, network_id, tenant_id)
if not self._network_provisioned(tenant_id, network_id):
# If the Arista driver does not know about the network, ignore the
# port.
LOG.info(_LI("Ignoring port connected to %s"), network_id)
return
with self.eos_sync_lock:
port_down = False
if(new_port['device_owner'] ==
n_const.DEVICE_OWNER_DVR_INTERFACE):
# We care about port status only for DVR ports because
# for DVR, a single port exists on multiple hosts. If a port
# is no longer needed on a host then the driver gets a
# port_update notification for that <port, host> with the
# port status as PORT_STATUS_DOWN.
port_down = context.status == n_const.PORT_STATUS_DOWN
if host and not port_down:
port_host_filter = None
if(new_port['device_owner'] ==
n_const.DEVICE_OWNER_DVR_INTERFACE):
# <port, host> uniquely identifies a DVR port. Other
# ports are identified by just the port id
port_host_filter = host
port_provisioned = db_lib.is_port_provisioned(
port_id, port_host_filter)
if not port_provisioned:
LOG.info("Remembering the port")
# Create a new port in the DB
db_lib.remember_tenant(tenant_id)
db_lib.remember_vm(device_id, host, port_id,
network_id, tenant_id)
else:
if(new_port['device_id'] != orig_port['device_id'] or
context.host != context.original_host or
new_port['network_id'] != orig_port['network_id'] or
new_port['tenant_id'] != orig_port['tenant_id']):
LOG.info("Updating the port")
# Port exists in the DB. Update it
db_lib.update_port(device_id, host, port_id,
network_id, tenant_id)
else: # Unbound or down port does not concern us
orig_host = context.original_host
LOG.info("Forgetting the port on %s" % str(orig_host))
db_lib.forget_port(port_id, orig_host)
