301 lines
12 KiB
Python
301 lines
12 KiB
Python
# Copyright 2011 OpenStack Foundation
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# Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
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# Copyright 2011 Grid Dynamics
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# Copyright 2011 Eldar Nugaev, Kirill Shileev, Ilya Alekseyev
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log as logging
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from oslo_utils import netutils
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import webob
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from nova.api.openstack.api_version_request \
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import MAX_PROXY_API_SUPPORT_VERSION
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import floating_ips
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from nova.api.openstack import wsgi
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from nova.api import validation
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from nova.compute import api as compute
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from nova import exception
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from nova.i18n import _
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from nova.network import neutron
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from nova.policies import floating_ips as fi_policies
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LOG = logging.getLogger(__name__)
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def _translate_floating_ip_view(floating_ip):
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instance_id = None
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if floating_ip['port_details']:
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instance_id = floating_ip['port_details']['device_id']
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return {
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'floating_ip': {
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'id': floating_ip['id'],
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'ip': floating_ip['floating_ip_address'],
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'pool': floating_ip['network_details']['name'] or (
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floating_ip['network_details']['id']),
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'fixed_ip': floating_ip['fixed_ip_address'],
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'instance_id': instance_id,
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}
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}
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def get_instance_by_floating_ip_addr(self, context, address):
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try:
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instance_id =\
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self.network_api.get_instance_id_by_floating_address(
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context, address)
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except exception.FloatingIpNotFoundForAddress as ex:
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raise webob.exc.HTTPNotFound(explanation=ex.format_message())
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except exception.FloatingIpMultipleFoundForAddress as ex:
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raise webob.exc.HTTPConflict(explanation=ex.format_message())
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if instance_id:
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return common.get_instance(self.compute_api, context, instance_id,
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expected_attrs=['flavor'])
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def disassociate_floating_ip(self, context, instance, address):
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try:
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self.network_api.disassociate_floating_ip(context, instance, address)
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except exception.Forbidden:
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raise webob.exc.HTTPForbidden()
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class FloatingIPController(wsgi.Controller):
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"""The Floating IPs API controller for the OpenStack API."""
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def __init__(self):
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super(FloatingIPController, self).__init__()
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self.compute_api = compute.API()
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self.network_api = neutron.API()
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@wsgi.Controller.api_version("2.1", MAX_PROXY_API_SUPPORT_VERSION)
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@wsgi.expected_errors((400, 404))
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def show(self, req, id):
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"""Return data about the given floating IP."""
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context = req.environ['nova.context']
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context.can(fi_policies.BASE_POLICY_NAME % 'show',
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target={'project_id': context.project_id})
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try:
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floating_ip = self.network_api.get_floating_ip(context, id)
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except (exception.NotFound, exception.FloatingIpNotFound):
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msg = _("Floating IP not found for ID %s") % id
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raise webob.exc.HTTPNotFound(explanation=msg)
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except exception.InvalidID as e:
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raise webob.exc.HTTPBadRequest(explanation=e.format_message())
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return _translate_floating_ip_view(floating_ip)
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@wsgi.Controller.api_version("2.1", MAX_PROXY_API_SUPPORT_VERSION)
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@wsgi.expected_errors(())
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def index(self, req):
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"""Return a list of floating IPs allocated to a project."""
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context = req.environ['nova.context']
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context.can(fi_policies.BASE_POLICY_NAME % 'list',
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target={'project_id': context.project_id})
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floating_ips = self.network_api.get_floating_ips_by_project(context)
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return {'floating_ips': [_translate_floating_ip_view(ip)['floating_ip']
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for ip in floating_ips]}
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@wsgi.Controller.api_version("2.1", MAX_PROXY_API_SUPPORT_VERSION)
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@wsgi.expected_errors((400, 403, 404))
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def create(self, req, body=None):
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context = req.environ['nova.context']
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context.can(fi_policies.BASE_POLICY_NAME % 'create',
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target={'project_id': context.project_id})
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pool = None
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if body and 'pool' in body:
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pool = body['pool']
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try:
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address = self.network_api.allocate_floating_ip(context, pool)
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ip = self.network_api.get_floating_ip_by_address(context, address)
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except exception.NoMoreFloatingIps:
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if pool:
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msg = _("No more floating IPs in pool %s.") % pool
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else:
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msg = _("No more floating IPs available.")
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raise webob.exc.HTTPNotFound(explanation=msg)
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except exception.FloatingIpLimitExceeded:
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if pool:
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msg = _("IP allocation over quota in pool %s.") % pool
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else:
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msg = _("IP allocation over quota.")
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raise webob.exc.HTTPForbidden(explanation=msg)
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except exception.FloatingIpPoolNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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except exception.FloatingIpBadRequest as e:
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raise webob.exc.HTTPBadRequest(explanation=e.format_message())
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return _translate_floating_ip_view(ip)
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@wsgi.Controller.api_version("2.1", MAX_PROXY_API_SUPPORT_VERSION)
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@wsgi.response(202)
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@wsgi.expected_errors((400, 403, 404, 409))
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def delete(self, req, id):
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context = req.environ['nova.context']
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context.can(fi_policies.BASE_POLICY_NAME % 'delete',
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target={'project_id': context.project_id})
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# get the floating ip object
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try:
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floating_ip = self.network_api.get_floating_ip(context, id)
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except (exception.NotFound, exception.FloatingIpNotFound):
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msg = _("Floating IP not found for ID %s") % id
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raise webob.exc.HTTPNotFound(explanation=msg)
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except exception.InvalidID as e:
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raise webob.exc.HTTPBadRequest(explanation=e.format_message())
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address = floating_ip['floating_ip_address']
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# get the associated instance object (if any)
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instance = get_instance_by_floating_ip_addr(self, context, address)
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try:
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self.network_api.disassociate_and_release_floating_ip(
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context, instance, floating_ip)
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except exception.Forbidden:
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raise webob.exc.HTTPForbidden()
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except exception.FloatingIpNotFoundForAddress as exc:
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raise webob.exc.HTTPNotFound(explanation=exc.format_message())
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class FloatingIPActionController(wsgi.Controller):
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"""This API is deprecated from the Microversion '2.44'."""
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def __init__(self):
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super(FloatingIPActionController, self).__init__()
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self.compute_api = compute.API()
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self.network_api = neutron.API()
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@wsgi.Controller.api_version("2.1", "2.43")
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@wsgi.expected_errors((400, 403, 404))
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@wsgi.action('addFloatingIp')
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@validation.schema(floating_ips.add_floating_ip)
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def _add_floating_ip(self, req, id, body):
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"""Associate floating_ip to an instance."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, id,
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expected_attrs=['flavor'])
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context.can(fi_policies.BASE_POLICY_NAME % 'add',
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target={'project_id': instance.project_id})
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address = body['addFloatingIp']['address']
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cached_nwinfo = instance.get_network_info()
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if not cached_nwinfo:
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LOG.warning(
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'Info cache is %r during associate with no nw_info cache',
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instance.info_cache, instance=instance)
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msg = _('Instance network is not ready yet')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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fixed_ips = cached_nwinfo.fixed_ips()
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if not fixed_ips:
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msg = _('No fixed IPs associated to instance')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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fixed_address = None
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if 'fixed_address' in body['addFloatingIp']:
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fixed_address = body['addFloatingIp']['fixed_address']
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for fixed in fixed_ips:
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if fixed['address'] == fixed_address:
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break
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else:
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msg = _('Specified fixed address not assigned to instance')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if not fixed_address:
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try:
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fixed_address = next(ip['address'] for ip in fixed_ips
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if netutils.is_valid_ipv4(ip['address']))
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except StopIteration:
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msg = _('Unable to associate floating IP %(address)s '
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'to any fixed IPs for instance %(id)s. '
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'Instance has no fixed IPv4 addresses to '
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'associate.') % (
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{'address': address, 'id': id})
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if len(fixed_ips) > 1:
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LOG.warning('multiple fixed_ips exist, using the first '
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'IPv4 fixed_ip: %s', fixed_address)
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try:
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self.network_api.associate_floating_ip(context, instance,
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floating_address=address,
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fixed_address=fixed_address)
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except exception.FloatingIpAssociated:
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msg = _('floating IP is already associated')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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except exception.FloatingIpAssociateFailed as e:
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raise webob.exc.HTTPBadRequest(explanation=e.format_message())
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except exception.NoFloatingIpInterface:
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msg = _('l3driver call to add floating IP failed')
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raise webob.exc.HTTPBadRequest(explanation=msg)
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except exception.FloatingIpNotFoundForAddress:
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msg = _('floating IP not found')
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raise webob.exc.HTTPNotFound(explanation=msg)
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except exception.Forbidden as e:
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raise webob.exc.HTTPForbidden(explanation=e.format_message())
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except Exception as e:
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msg = _('Unable to associate floating IP %(address)s to '
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'fixed IP %(fixed_address)s for instance %(id)s. '
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'Error: %(error)s') % (
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{'address': address, 'fixed_address': fixed_address,
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'id': id, 'error': e})
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LOG.exception(msg)
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raise webob.exc.HTTPBadRequest(explanation=msg)
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return webob.Response(status_int=202)
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@wsgi.Controller.api_version("2.1", "2.43")
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@wsgi.expected_errors((400, 403, 404, 409))
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@wsgi.action('removeFloatingIp')
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@validation.schema(floating_ips.remove_floating_ip)
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def _remove_floating_ip(self, req, id, body):
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"""Dissociate floating_ip from an instance."""
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context = req.environ['nova.context']
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address = body['removeFloatingIp']['address']
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# get the associated instance object (if any)
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instance = get_instance_by_floating_ip_addr(self, context, address)
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target = {}
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if instance:
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target = {'project_id': instance.project_id}
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context.can(fi_policies.BASE_POLICY_NAME % 'remove',
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target=target)
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# get the floating ip object
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try:
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floating_ip = self.network_api.get_floating_ip_by_address(context,
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address)
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except exception.FloatingIpNotFoundForAddress:
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msg = _("floating IP not found")
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raise webob.exc.HTTPNotFound(explanation=msg)
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# disassociate if associated
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if instance and floating_ip['port_id'] and instance.uuid == id:
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disassociate_floating_ip(self, context, instance, address)
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return webob.Response(status_int=202)
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else:
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msg = _("Floating IP %(address)s is not associated with instance "
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"%(id)s.") % {'address': address, 'id': id}
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raise webob.exc.HTTPConflict(explanation=msg)
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