224 lines
9.4 KiB
Python
224 lines
9.4 KiB
Python
# Copyright 2012 SINA Inc.
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# All Rights Reserved.
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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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"""The instance interfaces extension."""
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import webob
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from webob import exc
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from nova.api.openstack import api_version_request
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import attach_interfaces
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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 import objects
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from nova.policies import attach_interfaces as ai_policies
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def _translate_interface_attachment_view(context, port_info, show_tag=False):
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"""Maps keys for interface attachment details view.
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:param port_info: dict of port details from the networking service
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:param show_tag: If True, includes the "tag" key in the returned dict,
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else the "tag" entry is omitted (default: False)
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:returns: dict of a subset of details about the port and optionally the
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tag associated with the VirtualInterface record in the nova database
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"""
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info = {
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'net_id': port_info['network_id'],
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'port_id': port_info['id'],
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'mac_addr': port_info['mac_address'],
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'port_state': port_info['status'],
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'fixed_ips': port_info.get('fixed_ips', None),
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}
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if show_tag:
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# Get the VIF for this port (if one exists - VirtualInterface records
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# did not exist for neutron ports until the Newton release).
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vif = objects.VirtualInterface.get_by_uuid(context, port_info['id'])
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info['tag'] = vif.tag if vif else None
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return info
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class InterfaceAttachmentController(wsgi.Controller):
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"""The interface attachment API controller for the OpenStack API."""
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def __init__(self):
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super(InterfaceAttachmentController, 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.expected_errors((404, 501))
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def index(self, req, server_id):
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"""Returns the list of interface attachments for a given instance."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, server_id)
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context.can(ai_policies.POLICY_ROOT % 'list',
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target={'project_id': instance.project_id})
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search_opts = {'device_id': instance.uuid}
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try:
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data = self.network_api.list_ports(context, **search_opts)
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except exception.NotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except NotImplementedError:
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common.raise_feature_not_supported()
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# If showing tags, get the VirtualInterfaceList for the server and
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# map VIFs by port ID. Note that VirtualInterface records did not
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# exist for neutron ports until the Newton release so it's OK if we
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# are missing records for old servers.
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show_tag = api_version_request.is_supported(req, '2.70')
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tag_per_port_id = {}
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if show_tag:
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vifs = objects.VirtualInterfaceList.get_by_instance_uuid(
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context, server_id)
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tag_per_port_id = {vif.uuid: vif.tag for vif in vifs}
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results = []
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ports = data.get('ports', [])
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for port in ports:
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# Note that we do not pass show_tag=show_tag to
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# _translate_interface_attachment_view because we are handling it
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# ourselves here since we have the list of VIFs which is better
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# for performance than doing a DB query per port.
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info = _translate_interface_attachment_view(context, port)
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if show_tag:
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info['tag'] = tag_per_port_id.get(port['id'])
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results.append(info)
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return {'interfaceAttachments': results}
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@wsgi.expected_errors((403, 404))
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def show(self, req, server_id, id):
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"""Return data about the given interface attachment."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, server_id)
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context.can(ai_policies.POLICY_ROOT % 'show',
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target={'project_id': instance.project_id})
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port_id = id
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try:
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port_info = self.network_api.show_port(context, port_id)
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except exception.PortNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.Forbidden as e:
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raise exc.HTTPForbidden(explanation=e.format_message())
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if port_info['port']['device_id'] != server_id:
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msg = _("Instance %(instance)s does not have a port with id "
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"%(port)s") % {'instance': server_id, 'port': port_id}
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raise exc.HTTPNotFound(explanation=msg)
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return {'interfaceAttachment':
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_translate_interface_attachment_view(
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context, port_info['port'],
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show_tag=api_version_request.is_supported(req, '2.70'))}
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@wsgi.expected_errors((400, 403, 404, 409, 500, 501))
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@validation.schema(attach_interfaces.create, '2.0', '2.48')
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@validation.schema(attach_interfaces.create_v249, '2.49')
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def create(self, req, server_id, body):
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"""Attach an interface to an instance."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, server_id)
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context.can(ai_policies.POLICY_ROOT % 'create',
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target={'project_id': instance.project_id})
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network_id = None
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port_id = None
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req_ip = None
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tag = None
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if body:
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attachment = body['interfaceAttachment']
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network_id = attachment.get('net_id', None)
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port_id = attachment.get('port_id', None)
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tag = attachment.get('tag', None)
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try:
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req_ip = attachment['fixed_ips'][0]['ip_address']
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except Exception:
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pass
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if network_id and port_id:
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msg = _("Must not input both network_id and port_id")
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raise exc.HTTPBadRequest(explanation=msg)
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if req_ip and not network_id:
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msg = _("Must input network_id when request IP address")
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raise exc.HTTPBadRequest(explanation=msg)
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try:
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vif = self.compute_api.attach_interface(context,
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instance, network_id, port_id, req_ip, tag=tag)
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except (exception.InterfaceAttachFailedNoNetwork,
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exception.NetworkAmbiguous,
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exception.NoMoreFixedIps,
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exception.PortNotUsable,
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exception.AttachInterfaceNotSupported,
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exception.SecurityGroupCannotBeApplied,
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exception.NetworkInterfaceTaggedAttachNotSupported,
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exception.NetworksWithQoSPolicyNotSupported,
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exception.InterfaceAttachPciClaimFailed,
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exception.InterfaceAttachResourceAllocationFailed) as e:
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raise exc.HTTPBadRequest(explanation=e.format_message())
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except (exception.InstanceIsLocked,
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exception.FixedIpAlreadyInUse,
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exception.PortInUse) as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except (exception.PortNotFound,
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exception.NetworkNotFound) as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.PortLimitExceeded as e:
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raise exc.HTTPForbidden(explanation=e.format_message())
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except exception.InterfaceAttachFailed as e:
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raise webob.exc.HTTPInternalServerError(
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explanation=e.format_message())
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'attach_interface', server_id)
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return self.show(req, server_id, vif['id'])
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@wsgi.response(202)
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@wsgi.expected_errors((404, 409, 501))
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def delete(self, req, server_id, id):
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"""Detach an interface from an instance."""
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context = req.environ['nova.context']
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instance = common.get_instance(self.compute_api, context, server_id,
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expected_attrs=['device_metadata'])
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context.can(ai_policies.POLICY_ROOT % 'delete',
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target={'project_id': instance.project_id})
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port_id = id
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try:
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self.compute_api.detach_interface(context,
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instance, port_id=port_id)
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except exception.PortNotFound as e:
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raise exc.HTTPNotFound(explanation=e.format_message())
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except exception.InstanceIsLocked as e:
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raise exc.HTTPConflict(explanation=e.format_message())
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except NotImplementedError:
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common.raise_feature_not_supported()
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except exception.InstanceInvalidState as state_error:
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common.raise_http_conflict_for_instance_invalid_state(state_error,
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'detach_interface', server_id)
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