Alex Gaynor
cd9d8e45c6
Previous _ was monkey patched into builtins whenever certain modules were imported. This removes that and simply imports it when it is needed. Change-Id: I0af2c6d8a230e94440d655d13cab9107ac20d13c
351 lines
14 KiB
Python
351 lines
14 KiB
Python
# Copyright 2011 OpenStack Foundation
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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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import os.path
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import traceback
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import webob
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from webob import exc
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from nova.api.openstack import common
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from nova.api.openstack import extensions
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from nova.api.openstack import wsgi
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from nova import compute
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from nova.compute import vm_states
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from nova import exception
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from nova.openstack.common.gettextutils import _
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from nova.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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ALIAS = "os-admin-actions"
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# States usable in resetState action
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state_map = dict(active=vm_states.ACTIVE, error=vm_states.ERROR)
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def authorize(context, action_name):
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action = 'v3:%s:%s' % (ALIAS, action_name)
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extensions.extension_authorizer('compute', action)(context)
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class AdminActionsController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(AdminActionsController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API()
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@wsgi.action('pause')
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def _pause(self, req, id, body):
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"""Permit Admins to pause the server."""
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ctxt = req.environ['nova.context']
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authorize(ctxt, 'pause')
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try:
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server = self.compute_api.get(ctxt, id)
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self.compute_api.pause(ctxt, server)
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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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'pause')
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::pause %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('unpause')
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def _unpause(self, req, id, body):
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"""Permit Admins to unpause the server."""
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ctxt = req.environ['nova.context']
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authorize(ctxt, 'unpause')
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try:
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server = self.compute_api.get(ctxt, id)
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self.compute_api.unpause(ctxt, server)
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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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'unpause')
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::unpause %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('suspend')
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def _suspend(self, req, id, body):
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"""Permit admins to suspend the server."""
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context = req.environ['nova.context']
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authorize(context, 'suspend')
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try:
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server = self.compute_api.get(context, id, want_objects=True)
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self.compute_api.suspend(context, server)
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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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'suspend')
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("compute.api::suspend %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('resume')
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def _resume(self, req, id, body):
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"""Permit admins to resume the server from suspend."""
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context = req.environ['nova.context']
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authorize(context, 'resume')
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try:
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server = self.compute_api.get(context, id, want_objects=True)
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self.compute_api.resume(context, server)
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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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'resume')
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("compute.api::resume %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('migrate')
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def _migrate(self, req, id, body):
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"""Permit admins to migrate a server to a new host."""
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context = req.environ['nova.context']
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authorize(context, 'migrate')
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try:
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instance = self.compute_api.get(context, id)
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self.compute_api.resize(req.environ['nova.context'], instance)
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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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'migrate')
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except Exception as e:
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LOG.exception(_("Error in migrate %s"), e)
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raise exc.HTTPBadRequest()
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return webob.Response(status_int=202)
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@wsgi.action('reset_network')
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def _reset_network(self, req, id, body):
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"""Permit admins to reset networking on a server."""
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context = req.environ['nova.context']
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authorize(context, 'reset_network')
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try:
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instance = self.compute_api.get(context, id)
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self.compute_api.reset_network(context, instance)
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::reset_network %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('inject_network_info')
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def _inject_network_info(self, req, id, body):
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"""Permit admins to inject network info into a server."""
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context = req.environ['nova.context']
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authorize(context, 'inject_network_info')
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try:
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instance = self.compute_api.get(context, id)
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self.compute_api.inject_network_info(context, instance)
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except exception.InstanceNotFound:
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raise exc.HTTPNotFound(_("Server not found"))
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::inject_network_info %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('lock')
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def _lock(self, req, id, body):
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"""Permit admins to lock a server."""
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context = req.environ['nova.context']
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authorize(context, 'lock')
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try:
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instance = self.compute_api.get(context, id)
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self.compute_api.lock(context, instance)
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except exception.InstanceNotFound:
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raise exc.HTTPNotFound(_("Server not found"))
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::lock %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('unlock')
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def _unlock(self, req, id, body):
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"""Permit admins to lock a server."""
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context = req.environ['nova.context']
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authorize(context, 'unlock')
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try:
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instance = self.compute_api.get(context, id)
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self.compute_api.unlock(context, instance)
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except exception.InstanceNotFound:
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raise exc.HTTPNotFound(_("Server not found"))
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::unlock %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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@wsgi.action('create_backup')
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def _create_backup(self, req, id, body):
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"""Backup a server instance.
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Images now have an `image_type` associated with them, which can be
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'snapshot' or the backup type, like 'daily' or 'weekly'.
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If the image_type is backup-like, then the rotation factor can be
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included and that will cause the oldest backups that exceed the
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rotation factor to be deleted.
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"""
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context = req.environ["nova.context"]
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authorize(context, 'create_backup')
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try:
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entity = body["create_backup"]
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except (KeyError, TypeError):
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raise exc.HTTPBadRequest(_("Malformed request body"))
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try:
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image_name = entity["name"]
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backup_type = entity["backup_type"]
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rotation = entity["rotation"]
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except KeyError as missing_key:
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msg = _("create_backup entity requires %s attribute") % missing_key
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raise exc.HTTPBadRequest(explanation=msg)
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except TypeError:
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msg = _("Malformed create_backup entity")
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raise exc.HTTPBadRequest(explanation=msg)
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try:
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rotation = int(rotation)
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except ValueError:
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msg = _("create_backup attribute 'rotation' must be an integer")
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raise exc.HTTPBadRequest(explanation=msg)
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if rotation < 0:
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msg = _("create_backup attribute 'rotation' must be greater "
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"than or equal to zero")
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raise exc.HTTPBadRequest(explanation=msg)
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props = {}
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metadata = entity.get('metadata', {})
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common.check_img_metadata_properties_quota(context, metadata)
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try:
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props.update(metadata)
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except ValueError:
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msg = _("Invalid metadata")
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raise exc.HTTPBadRequest(explanation=msg)
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try:
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instance = self.compute_api.get(context, id)
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except exception.NotFound:
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raise exc.HTTPNotFound(_("Instance not found"))
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try:
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image = self.compute_api.backup(context, instance, image_name,
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backup_type, rotation, extra_properties=props)
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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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'create_backup')
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resp = webob.Response(status_int=202)
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# build location of newly-created image entity if rotation is not zero
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if rotation > 0:
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image_id = str(image['id'])
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image_ref = os.path.join(req.application_url, 'images', image_id)
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resp.headers['Location'] = image_ref
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return resp
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@wsgi.action('migrate_live')
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def _migrate_live(self, req, id, body):
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"""Permit admins to (live) migrate a server to a new host."""
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context = req.environ["nova.context"]
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authorize(context, 'migrate_live')
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try:
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block_migration = body["migrate_live"]["block_migration"]
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disk_over_commit = body["migrate_live"]["disk_over_commit"]
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host = body["migrate_live"]["host"]
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except (TypeError, KeyError):
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msg = _("host, block_migration and disk_over_commit must "
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"be specified for live migration.")
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raise exc.HTTPBadRequest(explanation=msg)
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try:
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instance = self.compute_api.get(context, id)
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self.compute_api.live_migrate(context, instance, block_migration,
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disk_over_commit, host)
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except (exception.ComputeServiceUnavailable,
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exception.InvalidHypervisorType,
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exception.UnableToMigrateToSelf,
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exception.DestinationHypervisorTooOld) as ex:
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raise exc.HTTPBadRequest(explanation=ex.format_message())
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except Exception:
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if host is None:
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msg = _("Live migration of instance %s to another host "
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"failed") % id
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else:
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msg = _("Live migration of instance %(id)s to host %(host)s "
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"failed") % {'id': id, 'host': host}
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LOG.exception(msg)
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# Return messages from scheduler
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raise exc.HTTPBadRequest(explanation=msg)
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return webob.Response(status_int=202)
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@wsgi.action('reset_state')
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def _reset_state(self, req, id, body):
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"""Permit admins to reset the state of a server."""
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context = req.environ["nova.context"]
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authorize(context, 'reset_state')
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# Identify the desired state from the body
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try:
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state = state_map[body["reset_state"]["state"]]
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except (TypeError, KeyError):
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msg = _("Desired state must be specified. Valid states "
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"are: %s") % ', '.join(sorted(state_map.keys()))
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raise exc.HTTPBadRequest(explanation=msg)
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try:
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instance = self.compute_api.get(context, id, want_objects=True)
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instance.vm_state = state
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instance.task_state = None
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instance.save(admin_state_reset=True)
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except exception.InstanceNotFound:
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raise exc.HTTPNotFound(_("Server not found"))
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except Exception:
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readable = traceback.format_exc()
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LOG.exception(_("Compute.api::reset_state %s"), readable)
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raise exc.HTTPUnprocessableEntity()
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return webob.Response(status_int=202)
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class AdminActions(extensions.V3APIExtensionBase):
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"""Enable admin-only server actions
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Actions include: pause, unpause, suspend, resume, migrate,
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reset_network, inject_network_info, lock, unlock, create_backup
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"""
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name = "AdminActions"
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alias = ALIAS
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namespace = "http://docs.openstack.org/compute/ext/%s/api/v3" % ALIAS
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version = 1
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def get_controller_extensions(self):
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controller = AdminActionsController()
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extension = extensions.ControllerExtension(self, 'servers', controller)
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return [extension]
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def get_resources(self):
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return []
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