def disassociate_floating_ip(self, context, address,
affect_auto_assigned=False):
"""Disassociates a floating ip from its fixed ip.
Makes sure everything makes sense then calls _disassociate_floating_ip,
rpc'ing to correct host if i'm not it.
"""
floating_ip = objects.FloatingIP.get_by_address(context, address)
# handle auto assigned
if not affect_auto_assigned and floating_ip.auto_assigned:
raise exception.CannotDisassociateAutoAssignedFloatingIP()
# make sure project owns this floating ip (allocated)
self._floating_ip_owned_by_project(context, floating_ip)
# make sure floating ip is associated
if not floating_ip.fixed_ip_id:
floating_address = floating_ip.address
raise exception.FloatingIpNotAssociated(address=floating_address)
fixed_ip = objects.FixedIP.get_by_id(context, floating_ip.fixed_ip_id)
# send to correct host, unless i'm the correct host
network = objects.Network.get_by_id(context.elevated(),
fixed_ip.network_id)
interface = floating_ip.interface
if network.multi_host:
instance = objects.Instance.get_by_uuid(
context, fixed_ip.instance_uuid)
service = objects.Service.get_by_host_and_binary(
context.elevated(), instance.host, 'patron-network')
if service and self.servicegroup_api.service_is_up(service):
host = instance.host
else:
# NOTE(vish): if the service is down just deallocate the data
# locally. Set the host to local so the call will
# not go over rpc and set interface to None so the
# teardown in the driver does not happen.
host = self.host
interface = None
else:
host = network.host
if host == self.host:
# i'm the correct host
self._disassociate_floating_ip(context, address, interface,
fixed_ip.instance_uuid)
else:
# send to correct host
self.network_rpcapi._disassociate_floating_ip(context, address,
interface, host, fixed_ip.instance_uuid)
def associate_floating_ip(self, context, floating_address, fixed_address,
affect_auto_assigned=False):
"""Associates a floating ip with a fixed ip.
Makes sure everything makes sense then calls _associate_floating_ip,
rpc'ing to correct host if i'm not it.
Access to the floating_address is verified but access to the
fixed_address is not verified. This assumes that that the calling
side has already verified that the fixed_address is legal by
checking access to the instance.
"""
floating_ip = objects.FloatingIP.get_by_address(context,
floating_address)
# handle auto_assigned
if not affect_auto_assigned and floating_ip.auto_assigned:
return
# make sure project owns this floating ip (allocated)
self._floating_ip_owned_by_project(context, floating_ip)
# disassociate any already associated
orig_instance_uuid = None
if floating_ip.fixed_ip_id:
# find previously associated instance
fixed_ip = floating_ip.fixed_ip
if str(fixed_ip.address) == fixed_address:
# NOTE(vish): already associated to this address
return
orig_instance_uuid = fixed_ip.instance_uuid
self.disassociate_floating_ip(context, floating_address)
fixed_ip = objects.FixedIP.get_by_address(context, fixed_address)
# send to correct host, unless i'm the correct host
network = objects.Network.get_by_id(context.elevated(),
fixed_ip.network_id)
if network.multi_host:
instance = objects.Instance.get_by_uuid(
context, fixed_ip.instance_uuid)
host = instance.host
else:
host = network.host
interface = floating_ip.interface
if host == self.host:
# i'm the correct host
self._associate_floating_ip(context, floating_address,
fixed_address, interface,
fixed_ip.instance_uuid)
else:
# send to correct host
self.network_rpcapi._associate_floating_ip(context,
floating_address, fixed_address, interface, host,
fixed_ip.instance_uuid)
return orig_instance_uuid
def deallocate_for_instance(self, context, **kwargs):
"""Handles deallocating floating IP resources for an instance.
calls super class deallocate_for_instance() as well.
rpc.called by network_api
"""
if 'instance' in kwargs:
instance_uuid = kwargs['instance'].uuid
else:
instance_uuid = kwargs['instance_id']
if not uuidutils.is_uuid_like(instance_uuid):
# NOTE(francois.charlier): in some cases the instance might be
# deleted before the IPs are released, so we need to get
# deleted instances too
instance = objects.Instance.get_by_id(
context.elevated(read_deleted='yes'), instance_uuid)
instance_uuid = instance.uuid
try:
fixed_ips = objects.FixedIPList.get_by_instance_uuid(
context, instance_uuid)
except exception.FixedIpNotFoundForInstance:
fixed_ips = []
# add to kwargs so we can pass to super to save a db lookup there
kwargs['fixed_ips'] = fixed_ips
for fixed_ip in fixed_ips:
fixed_id = fixed_ip.id
floating_ips = objects.FloatingIPList.get_by_fixed_ip_id(context,
fixed_id)
# disassociate floating ips related to fixed_ip
for floating_ip in floating_ips:
address = str(floating_ip.address)
try:
self.disassociate_floating_ip(context,
address,
affect_auto_assigned=True)
except exception.FloatingIpNotAssociated:
LOG.info(_LI("Floating IP %s is not associated. Ignore."),
address)
# deallocate if auto_assigned
if floating_ip.auto_assigned:
self.deallocate_floating_ip(context, address,
affect_auto_assigned=True)
# call the next inherited class's deallocate_for_instance()
# which is currently the NetworkManager version
# call this after so floating IPs are handled first
super(FloatingIP, self).deallocate_for_instance(context, **kwargs)
def allocate_for_instance(self, context, **kwargs):
"""Handles allocating the floating IP resources for an instance.
calls super class allocate_for_instance() as well
rpc.called by network_api
"""
instance_uuid = kwargs.get('instance_id')
if not uuidutils.is_uuid_like(instance_uuid):
instance_uuid = kwargs.get('instance_uuid')
project_id = kwargs.get('project_id')
# call the next inherited class's allocate_for_instance()
# which is currently the NetworkManager version
# do this first so fixed ip is already allocated
nw_info = super(FloatingIP, self).allocate_for_instance(context,
**kwargs)
if CONF.auto_assign_floating_ip:
context = context.elevated()
# allocate a floating ip
floating_address = self.allocate_floating_ip(context, project_id,
True)
LOG.debug("floating IP allocation for instance "
"|%s|", floating_address,
instance_uuid=instance_uuid, context=context)
# get the first fixed address belonging to the instance
fixed_ips = nw_info.fixed_ips()
fixed_address = fixed_ips[0]['address']
# associate the floating ip to fixed_ip
self.associate_floating_ip(context,
floating_address,
fixed_address,
affect_auto_assigned=True)
# create a fresh set of network info that contains the floating ip
nw_info = self.get_instance_nw_info(context, **kwargs)
return nw_info
def teardown_console(self, context, console):
"""Tears down actual proxies."""
self._rebuild_xvp_conf(context.elevated())
def setup_console(self, context, console):
"""Sets up actual proxies."""
self._rebuild_xvp_conf(context.elevated())