224 lines
9.4 KiB
Python
224 lines
9.4 KiB
Python
# 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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import jsonschema
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import webob
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas import server_tags as schema
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from nova.api.openstack.compute.views import server_tags
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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.api.validation import parameter_types
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from nova.compute import api as compute
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from nova.compute import vm_states
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from nova import context as nova_context
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from nova import exception
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from nova.i18n import _
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from nova.notifications import base as notifications_base
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from nova import objects
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from nova.policies import server_tags as st_policies
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def _get_tags_names(tags):
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return [t.tag for t in tags]
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def _get_instance_mapping(context, server_id):
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try:
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return objects.InstanceMapping.get_by_instance_uuid(context,
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server_id)
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except exception.InstanceMappingNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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class ServerTagsController(wsgi.Controller):
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_view_builder_class = server_tags.ViewBuilder
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def __init__(self):
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super(ServerTagsController, self).__init__()
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self.compute_api = compute.API()
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def _check_instance_in_valid_state(self, context, server_id, action):
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instance = common.get_instance(self.compute_api, context, server_id)
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if instance.vm_state not in (vm_states.ACTIVE, vm_states.PAUSED,
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vm_states.SUSPENDED, vm_states.STOPPED):
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exc = exception.InstanceInvalidState(attr='vm_state',
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instance_uuid=instance.uuid,
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state=instance.vm_state,
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method=action)
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common.raise_http_conflict_for_instance_invalid_state(exc, action,
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server_id)
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return instance
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@wsgi.Controller.api_version("2.26")
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@wsgi.response(204)
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@wsgi.expected_errors(404)
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def show(self, req, server_id, id):
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context = req.environ["nova.context"]
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im = _get_instance_mapping(context, server_id)
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context.can(st_policies.POLICY_ROOT % 'show',
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target={'project_id': im.project_id})
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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exists = objects.Tag.exists(cctxt, server_id, id)
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except (exception.InstanceNotFound) as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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if not exists:
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msg = (_("Server %(server_id)s has no tag '%(tag)s'")
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% {'server_id': server_id, 'tag': id})
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raise webob.exc.HTTPNotFound(explanation=msg)
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@wsgi.Controller.api_version("2.26")
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@wsgi.expected_errors(404)
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def index(self, req, server_id):
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context = req.environ["nova.context"]
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im = _get_instance_mapping(context, server_id)
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context.can(st_policies.POLICY_ROOT % 'index',
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target={'project_id': im.project_id})
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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tags = objects.TagList.get_by_resource_id(cctxt, server_id)
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except (exception.InstanceNotFound) as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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return {'tags': _get_tags_names(tags)}
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@wsgi.Controller.api_version("2.26")
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@wsgi.expected_errors((400, 404, 409))
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@validation.schema(schema.update)
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def update(self, req, server_id, id, body):
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context = req.environ["nova.context"]
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im = _get_instance_mapping(context, server_id)
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context.can(st_policies.POLICY_ROOT % 'update',
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target={'project_id': im.project_id})
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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instance = self._check_instance_in_valid_state(
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cctxt, server_id, 'update tag')
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try:
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jsonschema.validate(id, parameter_types.tag)
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except jsonschema.ValidationError as e:
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msg = (_("Tag '%(tag)s' is invalid. It must be a non empty string "
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"without characters '/' and ','. Validation error "
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"message: %(err)s") % {'tag': id, 'err': e.message})
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raise webob.exc.HTTPBadRequest(explanation=msg)
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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tags = objects.TagList.get_by_resource_id(cctxt, server_id)
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except exception.InstanceNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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if len(tags) >= objects.instance.MAX_TAG_COUNT:
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msg = (_("The number of tags exceeded the per-server limit %d")
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% objects.instance.MAX_TAG_COUNT)
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raise webob.exc.HTTPBadRequest(explanation=msg)
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if id in _get_tags_names(tags):
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# NOTE(snikitin): server already has specified tag
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return webob.Response(status_int=204)
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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tag = objects.Tag(context=cctxt, resource_id=server_id, tag=id)
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tag.create()
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instance.tags = objects.TagList.get_by_resource_id(cctxt,
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server_id)
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except exception.InstanceNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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notifications_base.send_instance_update_notification(
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context, instance, service="nova-api")
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response = webob.Response(status_int=201)
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response.headers['Location'] = self._view_builder.get_location(
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req, server_id, id)
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return response
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@wsgi.Controller.api_version("2.26")
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@wsgi.expected_errors((404, 409))
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@validation.schema(schema.update_all)
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def update_all(self, req, server_id, body):
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context = req.environ["nova.context"]
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im = _get_instance_mapping(context, server_id)
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context.can(st_policies.POLICY_ROOT % 'update_all',
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target={'project_id': im.project_id})
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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instance = self._check_instance_in_valid_state(
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cctxt, server_id, 'update tags')
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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tags = objects.TagList.create(cctxt, server_id, body['tags'])
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instance.tags = tags
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except exception.InstanceNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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notifications_base.send_instance_update_notification(
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context, instance, service="nova-api")
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return {'tags': _get_tags_names(tags)}
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@wsgi.Controller.api_version("2.26")
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@wsgi.response(204)
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@wsgi.expected_errors((404, 409))
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def delete(self, req, server_id, id):
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context = req.environ["nova.context"]
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im = _get_instance_mapping(context, server_id)
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context.can(st_policies.POLICY_ROOT % 'delete',
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target={'project_id': im.project_id})
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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instance = self._check_instance_in_valid_state(
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cctxt, server_id, 'delete tag')
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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objects.Tag.destroy(cctxt, server_id, id)
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instance.tags = objects.TagList.get_by_resource_id(cctxt,
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server_id)
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except (exception.InstanceTagNotFound,
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exception.InstanceNotFound) as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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notifications_base.send_instance_update_notification(
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context, instance, service="nova-api")
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@wsgi.Controller.api_version("2.26")
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@wsgi.response(204)
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@wsgi.expected_errors((404, 409))
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def delete_all(self, req, server_id):
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context = req.environ["nova.context"]
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im = _get_instance_mapping(context, server_id)
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context.can(st_policies.POLICY_ROOT % 'delete_all',
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target={'project_id': im.project_id})
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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instance = self._check_instance_in_valid_state(
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cctxt, server_id, 'delete tags')
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try:
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with nova_context.target_cell(context, im.cell_mapping) as cctxt:
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objects.TagList.destroy(cctxt, server_id)
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instance.tags = objects.TagList()
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except exception.InstanceNotFound as e:
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raise webob.exc.HTTPNotFound(explanation=e.format_message())
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notifications_base.send_instance_update_notification(
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context, instance, service="nova-api")
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