80 lines
2.9 KiB
Python
80 lines
2.9 KiB
Python
# Copyright 2011 OpenStack Foundation
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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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import webob
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from nova.api.openstack import common
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from nova.api.openstack.compute.schemas.v3 import console_output
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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.api import validation
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from nova import compute
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from nova import exception
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from nova.i18n import _
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ALIAS = "os-console-output"
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authorize = extensions.extension_authorizer('compute', "v3:" + ALIAS)
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class ConsoleOutputController(wsgi.Controller):
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def __init__(self, *args, **kwargs):
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super(ConsoleOutputController, self).__init__(*args, **kwargs)
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self.compute_api = compute.API()
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@extensions.expected_errors((400, 404, 409, 501))
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@wsgi.action('get_console_output')
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@validation.schema(console_output.get_console_output)
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def get_console_output(self, req, id, body):
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"""Get text console output."""
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context = req.environ['nova.context']
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authorize(context)
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instance = common.get_instance(self.compute_api, context, id,
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want_objects=True)
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length = body['get_console_output'].get('length')
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if length is not None and int(length) == -1:
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# NOTE: -1 means an unlimited length. So here translates it to None
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# which also means an unlimited in the internal implementation.
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length = None
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try:
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output = self.compute_api.get_console_output(context,
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instance,
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length)
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except exception.InstanceNotReady as e:
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raise webob.exc.HTTPConflict(explanation=e.format_message())
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except NotImplementedError:
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msg = _("Unable to get console log, functionality not implemented")
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raise webob.exc.HTTPNotImplemented(explanation=msg)
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return {'output': output}
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class ConsoleOutput(extensions.V3APIExtensionBase):
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"""Console log output support, with tailing ability."""
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name = "ConsoleOutput"
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alias = ALIAS
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version = 1
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def get_controller_extensions(self):
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controller = ConsoleOutputController()
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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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