OpenStack Compute (Nova)
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
""" Keypair management extension"""
import webob
import webob.exc
from nova.api.openstack import wsgi
from nova.api.openstack import xmlutil
from nova.api.openstack import extensions
from nova.compute import api as compute_api
from nova import exception
authorize = extensions.extension_authorizer('compute', 'keypairs')
class KeypairTemplate(xmlutil.TemplateBuilder):
def construct(self):
return xmlutil.MasterTemplate(xmlutil.make_flat_dict('keypair'), 1)
class KeypairsTemplate(xmlutil.TemplateBuilder):
def construct(self):
root = xmlutil.TemplateElement('keypairs')
elem = xmlutil.make_flat_dict('keypair', selector='keypairs',
subselector='keypair')
root.append(elem)
return xmlutil.MasterTemplate(root, 1)
class KeypairController(object):
""" Keypair API controller for the OpenStack API """
def __init__(self):
self.api = compute_api.KeypairAPI()
@wsgi.serializers(xml=KeypairTemplate)
def create(self, req, body):
"""
Create or import keypair.
Sending name will generate a key and return private_key
and fingerprint.
You can send a public_key to add an existing ssh key
params: keypair object with:
name (required) - string
public_key (optional) - string
"""
context = req.environ['nova.context']
authorize(context)
params = body['keypair']
name = params['name']
try:
if 'public_key' in params:
keypair = self.api.import_key_pair(context,
context.user_id, name,
params['public_key'])
else:
keypair = self.api.create_key_pair(context, context.user_id,
name)
return {'keypair': keypair}
except exception.KeypairLimitExceeded:
msg = _("Quota exceeded, too many key pairs.")
raise webob.exc.HTTPRequestEntityTooLarge(
explanation=msg,
headers={'Retry-After': 0})
except exception.InvalidKeypair:
msg = _("Keypair data is invalid")
raise webob.exc.HTTPBadRequest(explanation=msg)
except exception.KeyPairExists:
msg = _("Key pair '%s' already exists.") % name
raise webob.exc.HTTPConflict(explanation=msg)
def delete(self, req, id):
"""
Delete a keypair with a given name
"""
context = req.environ['nova.context']
authorize(context)
try:
self.api.delete_key_pair(context, context.user_id, id)
except exception.KeypairNotFound:
raise webob.exc.HTTPNotFound()
return webob.Response(status_int=202)
@wsgi.serializers(xml=KeypairsTemplate)
def index(self, req):
"""
List of keypairs for a user
"""
context = req.environ['nova.context']
authorize(context)
key_pairs = self.api.get_key_pairs(context, context.user_id)
rval = []
for key_pair in key_pairs:
rval.append({'keypair': {
'name': key_pair['name'],
'public_key': key_pair['public_key'],
'fingerprint': key_pair['fingerprint'],
}})
return {'keypairs': rval}
class Keypairs(extensions.ExtensionDescriptor):
"""Keypair Support"""
name = "Keypairs"
alias = "os-keypairs"
namespace = "http://docs.openstack.org/compute/ext/keypairs/api/v1.1"
updated = "2011-08-08T00:00:00+00:00"
def get_resources(self):
resources = []
res = extensions.ResourceExtension(
'os-keypairs',
KeypairController())
resources.append(res)
return resources