149 lines
4.9 KiB
Python
149 lines
4.9 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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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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"""
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Nova User API client library.
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"""
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import base64
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from nova import vendor
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import boto
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from boto.ec2.regioninfo import RegionInfo
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class UserInfo(object):
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"""
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Information about a Nova user, as parsed through SAX
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fields include:
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username
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accesskey
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secretkey
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and an optional field containing a zip with X509 cert & rc
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file
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"""
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def __init__(self, connection=None, username=None, endpoint=None):
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self.connection = connection
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self.username = username
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self.endpoint = endpoint
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def __repr__(self):
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return 'UserInfo:%s' % self.username
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def startElement(self, name, attrs, connection):
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return None
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def endElement(self, name, value, connection):
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if name == 'username':
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self.username = str(value)
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elif name == 'file':
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self.file = base64.b64decode(str(value))
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elif name == 'accesskey':
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self.accesskey = str(value)
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elif name == 'secretkey':
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self.secretkey = str(value)
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class HostInfo(object):
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"""
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Information about a Nova Host, as parsed through SAX:
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Disk stats
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Running Instances
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Memory stats
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CPU stats
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Network address info
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Firewall info
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Bridge and devices
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"""
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def __init__(self, connection=None):
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self.connection = connection
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self.hostname = None
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def __repr__(self):
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return 'Host:%s' % self.hostname
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# this is needed by the sax parser, so ignore the ugly name
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def startElement(self, name, attrs, connection):
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return None
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# this is needed by the sax parser, so ignore the ugly name
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def endElement(self, name, value, connection):
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setattr(self, name, value)
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class NovaAdminClient(object):
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def __init__(self, clc_ip='127.0.0.1', region='nova', access_key='admin',
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secret_key='admin', **kwargs):
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self.clc_ip = clc_ip
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self.region = region
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self.access = access_key
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self.secret = secret_key
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self.apiconn = boto.connect_ec2(aws_access_key_id=access_key,
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aws_secret_access_key=secret_key,
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is_secure=False,
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region=RegionInfo(None, region, clc_ip),
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port=8773,
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path='/services/Admin',
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**kwargs)
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self.apiconn.APIVersion = 'nova'
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def connection_for(self, username, **kwargs):
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"""
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Returns a boto ec2 connection for the given username.
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"""
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user = self.get_user(username)
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return boto.connect_ec2(
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aws_access_key_id=user.accesskey,
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aws_secret_access_key=user.secretkey,
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is_secure=False,
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region=RegionInfo(None, self.region, self.clc_ip),
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port=8773,
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path='/services/Cloud',
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**kwargs
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)
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def get_users(self):
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""" grabs the list of all users """
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return self.apiconn.get_list('DescribeUsers', {}, [('item', UserInfo)])
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def get_user(self, name):
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""" grab a single user by name """
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user = self.apiconn.get_object('DescribeUser', {'Name': name}, UserInfo)
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if user.username != None:
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return user
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def has_user(self, username):
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""" determine if user exists """
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return self.get_user(username) != None
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def create_user(self, username):
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""" creates a new user, returning the userinfo object with access/secret """
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return self.apiconn.get_object('RegisterUser', {'Name': username}, UserInfo)
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def delete_user(self, username):
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""" deletes a user """
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return self.apiconn.get_object('DeregisterUser', {'Name': username}, UserInfo)
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def get_zip(self, username):
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""" returns the content of a zip file containing novarc and access credentials. """
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return self.apiconn.get_object('GenerateX509ForUser', {'Name': username}, UserInfo).file
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def get_hosts(self):
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return self.apiconn.get_list('DescribeHosts', {}, [('item', HostInfo)])
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