def _get_subnet(self, subnet_id):
subnet = self.idl.dhcp_options_get(subnet_id).execute()
# TODO: this: str(subnet.uuid) != str(subnet_id)
# is a workaround for an ovsdbapp problem returning
# random value for table with no indexing column specified when
# no record for the given UUID was found.
# Remove when issue is resolved.
if not subnet or str(subnet.uuid) != str(subnet_id):
raise ElementNotFoundError(
'Subnet {subnet} does not exist'.format(subnet=subnet_id))
if SubnetMapper.OVN_NETWORK_ID not in subnet.external_ids:
raise ElementNotFoundError(
'Subnet {subnet} is not an ovirt manager subnet'.format(
subnet=subnet_id))
return subnet
def _validate_create_routing_lsp_by_subnet(self,
network_id,
subnet_id,
router_id=None):
if not network_id:
raise ElementNotFoundError(
'Unable to add router interface. '
'Subnet {subnet_id} does not belong to any network'.format(
subnet_id=subnet_id))
network_subnet = self._get_dhcp_by_network_id(network_id)
if not network_subnet or str(network_subnet.uuid) != subnet_id:
raise BadRequestError(
'Subnet {subnet_id} does not belong to network {network_id}'.
format(subnet_id=subnet_id, network_id=network_id))
old_router_id = self._get_subnet_gateway_router_id(subnet_id)
if old_router_id:
if old_router_id == router_id:
raise BadRequestError(
'Can not add subnet {subnet} to router {router}. Subnet is'
' already connected to this router'.format(
subnet=subnet_id, router=router_id))
else:
raise BadRequestError(
'Can not add subnet {subnet} to router. Subnet is'
' already connected to router {old_router}'.format(
subnet=subnet_id,
router=router_id,
old_router=old_router_id))
def _validate_port_ip_for_router(self, port_ip, port, router_id):
if not port_ip:
raise ElementNotFoundError(
'Unable to attach port {port_id} to router '
'{router_id}. '
'Attaching by port requires the port to have '
'an ip from subnet assigned.'.format(port_id=port.uuid,
router_id=router_id))
def _get_router(self, router_id):
# TODO: LrGet is not yet implemented by ovsdbapp
# patch pending: https://review.openstack.org/#/c/505517/
# replace once patch is accepted
try:
return self.idl.lookup(ovnconst.TABLE_LR, router_id)
except RowNotFound:
raise ElementNotFoundError(
'Router {router} does not exist'.format(router=router_id))
def attach_network_to_router_by_subnet(subnet, network_id, router_id):
subnet_gateway = subnet.options.get('router')
if not subnet_gateway:
raise ElementNotFoundError(
'Unable to attach network {network_id} to router '
'{router_id} by subnet {subnet_id}.'
'Attaching by subnet requires the subnet to have '
'a default gateway specified.'.format(network_id=network_id,
subnet_id=subnet.uuid,
router_id=router_id))
def _get_port_ip(self, port, router_id):
port_addresses = port.dynamic_addresses
if not port_addresses:
raise ElementNotFoundError(
'Unable to attach port {port_id} to router '
'{router_id}. '
'Attaching by port requires the port to have '
'an ip from subnet assigned.'.format(port_id=port.uuid,
router_id=router_id))
return port_addresses[0].split(' ')[1]
def _get_ip_from_port(self, port, router_id):
port_ip = self._get_port_ip(port, router_id)
network = self._get_port_network(port)
network_cidr = network.other_config.get(NetworkMapper.OVN_SUBNET)
if not network_cidr:
raise ElementNotFoundError(
'Unable to attach port {port_id} to router '
'{router_id}. '
'Attaching by port requires the port\'s network '
'to have a subnet attached.'.format(port_id=port.uuid,
router_id=router_id))
network_netmask = network_cidr.split('/')[1]
return '{ip}/{netmask}'.format(ip=port_ip, netmask=network_netmask)
def _get_ip_from_subnet(self, subnet, network_id, router_id):
subnet_gateway = subnet.options.get('router')
if not subnet_gateway:
raise ElementNotFoundError(
'Unable to attach network {network_id} to router '
'{router_id} by subnet {subnet_id}.'
'Attaching by subnet requires the subnet to have '
'a default gateway specified.'.format(network_id=network_id,
subnet_id=subnet.uuid,
router_id=router_id))
subnet_netmask = subnet.cidr.split('/')[1]
return '{ip}/{netmask}'.format(ip=subnet_gateway,
netmask=subnet_netmask)
def _get_lrp(self, lrp):
try:
return self.idl.lookup(ovnconst.TABLE_LRP, lrp)
except RowNotFound:
raise ElementNotFoundError(
'Logical router port {port} does not exist'.format(port=lrp))
def _get_network(self, network_id):
network = self.idl.ls_get(network_id).execute()
if not network:
raise ElementNotFoundError(
'Network {network} does not exist'.format(network=network_id))
return network
def _validate_router_exists(self, router_id):
try:
self.idl.lookup(ovnconst.TABLE_LR, router_id)
except RowNotFound:
raise ElementNotFoundError(
'Router {router} does not exist'.format(router=router_id))
def _get_switch_port(self, port_id):
port = self.idl.lsp_get(port_id).execute()
if not port:
raise ElementNotFoundError(
'Port {port} does not exist'.format(port=port_id))
return port
