360 lines
12 KiB
Python
Executable File
360 lines
12 KiB
Python
Executable File
#!/usr/bin/env python
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# 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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# Interactive shell based on Django:
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#
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# Copyright (c) 2005, the Lawrence Journal-World
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without modification,
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# are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# 3. Neither the name of Django nor the names of its contributors may be used
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# to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""
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CLI interface for nova management.
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Connects to the running ADMIN api in the api daemon.
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"""
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import os
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import sys
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import time
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# If ../nova/__init__.py exists, add ../ to Python search path, so that
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# it will override what happens to be installed in /usr/(local/)lib/python...
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possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
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os.pardir,
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os.pardir))
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if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
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sys.path.insert(0, possible_topdir)
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from nova import flags
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from nova import utils
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from nova.auth import manager
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from nova.compute import model
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from nova.cloudpipe import pipelib
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from nova.endpoint import cloud
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FLAGS = flags.FLAGS
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class VpnCommands(object):
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"""Class for managing VPNs."""
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def __init__(self):
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self.manager = manager.AuthManager()
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self.instdir = model.InstanceDirectory()
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self.pipe = pipelib.CloudPipe(cloud.CloudController())
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def list(self):
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"""Print a listing of the VPNs for all projects."""
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print "%-12s\t" % 'project',
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print "%-12s\t" % 'ip:port',
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print "%s" % 'state'
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for project in self.manager.get_projects():
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print "%-12s\t" % project.name,
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print "%s:%s\t" % (project.vpn_ip, project.vpn_port),
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vpn = self._vpn_for(project.id)
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if vpn:
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command = "ping -c1 -w1 %s > /dev/null; echo $?"
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out, _err = utils.execute( command % vpn['private_dns_name'],
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check_exit_code=False)
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if out.strip() == '0':
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net = 'up'
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else:
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net = 'down'
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print vpn['private_dns_name'],
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print vpn['node_name'],
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print vpn['instance_id'],
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print vpn['state_description'],
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print net
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else:
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print None
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def _vpn_for(self, project_id):
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"""Get the VPN instance for a project ID."""
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for instance in self.instdir.all:
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if ('image_id' in instance.state
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and instance['image_id'] == FLAGS.vpn_image_id
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and not instance['state_description'] in
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['shutting_down', 'shutdown']
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and instance['project_id'] == project_id):
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return instance
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def spawn(self):
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"""Run all VPNs."""
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for p in reversed(self.manager.get_projects()):
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if not self._vpn_for(p.id):
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print 'spawning %s' % p.id
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self.pipe.launch_vpn_instance(p.id)
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time.sleep(10)
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def run(self, project_id):
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"""Start the VPN for a given project."""
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self.pipe.launch_vpn_instance(project_id)
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class ShellCommands(object):
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def run(self):
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"Runs a Python interactive interpreter. Tries to use IPython, if it's available."
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try:
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import IPython
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# Explicitly pass an empty list as arguments, because otherwise IPython
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# would use sys.argv from this script.
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shell = IPython.Shell.IPShell(argv=[])
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shell.mainloop()
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except ImportError:
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import code
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try: # Try activating rlcompleter, because it's handy.
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import readline
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except ImportError:
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pass
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else:
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# We don't have to wrap the following import in a 'try', because
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# we already know 'readline' was imported successfully.
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import rlcompleter
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readline.parse_and_bind("tab:complete")
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code.interact()
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def script(self, path):
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"""Runs the script from the specifed path with flags set properly.
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arguments: path"""
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exec(compile(open(path).read(), path, 'exec'), locals(), globals())
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class RoleCommands(object):
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"""Class for managing roles."""
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def __init__(self):
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self.manager = manager.AuthManager()
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def add(self, user, role, project=None):
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"""adds role to user
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if project is specified, adds project specific role
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arguments: user, role [project]"""
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self.manager.add_role(user, role, project)
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def has(self, user, role, project=None):
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"""checks to see if user has role
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if project is specified, returns True if user has
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the global role and the project role
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arguments: user, role [project]"""
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print self.manager.has_role(user, role, project)
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def remove(self, user, role, project=None):
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"""removes role from user
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if project is specified, removes project specific role
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arguments: user, role [project]"""
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self.manager.remove_role(user, role, project)
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class UserCommands(object):
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"""Class for managing users."""
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def __init__(self):
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self.manager = manager.AuthManager()
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def admin(self, name, access=None, secret=None):
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"""creates a new admin and prints exports
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arguments: name [access] [secret]"""
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user = self.manager.create_user(name, access, secret, True)
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print_export(user)
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def create(self, name, access=None, secret=None):
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"""creates a new user and prints exports
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arguments: name [access] [secret]"""
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user = self.manager.create_user(name, access, secret, False)
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print_export(user)
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def delete(self, name):
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"""deletes an existing user
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arguments: name"""
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self.manager.delete_user(name)
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def exports(self, name):
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"""prints access and secrets for user in export format
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arguments: name"""
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user = self.manager.get_user(name)
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if user:
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print_export(user)
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else:
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print "User %s doesn't exist" % name
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def list(self):
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"""lists all users
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arguments: <none>"""
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for user in self.manager.get_users():
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print user.name
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def print_export(user):
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"""Print export variables to use with API."""
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print 'export EC2_ACCESS_KEY=%s' % user.access
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print 'export EC2_SECRET_KEY=%s' % user.secret
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class ProjectCommands(object):
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"""Class for managing projects."""
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def __init__(self):
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self.manager = manager.AuthManager()
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def add(self, project, user):
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"""Adds user to project
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arguments: project user"""
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self.manager.add_to_project(user, project)
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def create(self, name, project_manager, description=None):
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"""Creates a new project
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arguments: name project_manager [description]"""
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self.manager.create_project(name, project_manager, description)
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def delete(self, name):
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"""Deletes an existing project
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arguments: name"""
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self.manager.delete_project(name)
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def environment(self, project_id, user_id, filename='novarc'):
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"""Exports environment variables to an sourcable file
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arguments: project_id user_id [filename='novarc]"""
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rc = self.manager.get_environment_rc(project_id, user_id)
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with open(filename, 'w') as f:
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f.write(rc)
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def list(self):
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"""Lists all projects
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arguments: <none>"""
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for project in self.manager.get_projects():
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print project.name
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def remove(self, project, user):
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"""Removes user from project
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arguments: project user"""
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self.manager.remove_from_project(user, project)
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def zipfile(self, project_id, user_id, filename='nova.zip'):
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"""Exports credentials for project to a zip file
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arguments: project_id user_id [filename='nova.zip]"""
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zip_file = self.manager.get_credentials(user_id, project_id)
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with open(filename, 'w') as f:
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f.write(zip_file)
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CATEGORIES = [
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('user', UserCommands),
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('project', ProjectCommands),
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('role', RoleCommands),
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('shell', ShellCommands),
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('vpn', VpnCommands),
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]
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def lazy_match(name, key_value_tuples):
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"""Finds all objects that have a key that case insensitively contains
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[name] key_value_tuples is a list of tuples of the form (key, value)
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returns a list of tuples of the form (key, value)"""
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result = []
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for (k, v) in key_value_tuples:
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if k.lower().find(name.lower()) == 0:
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result.append((k, v))
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if len(result) == 0:
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print "%s does not match any options:" % name
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for k, _v in key_value_tuples:
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print "\t%s" % k
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sys.exit(2)
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if len(result) > 1:
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print "%s matched multiple options:" % name
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for k, _v in result:
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print "\t%s" % k
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sys.exit(2)
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return result
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def methods_of(obj):
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"""Get all callable methods of an object that don't start with underscore
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returns a list of tuples of the form (method_name, method)"""
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result = []
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for i in dir(obj):
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if callable(getattr(obj, i)) and not i.startswith('_'):
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result.append((i, getattr(obj, i)))
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return result
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def main():
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"""Parse options and call the appropriate class/method."""
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utils.default_flagfile('/etc/nova/nova-manage.conf')
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argv = FLAGS(sys.argv)
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script_name = argv.pop(0)
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if len(argv) < 1:
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print script_name + " category action [<args>]"
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print "Available categories:"
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for k, _ in CATEGORIES:
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print "\t%s" % k
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sys.exit(2)
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category = argv.pop(0)
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matches = lazy_match(category, CATEGORIES)
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# instantiate the command group object
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category, fn = matches[0]
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command_object = fn()
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actions = methods_of(command_object)
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if len(argv) < 1:
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print script_name + " category action [<args>]"
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print "Available actions for %s category:" % category
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for k, _v in actions:
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print "\t%s" % k
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sys.exit(2)
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action = argv.pop(0)
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matches = lazy_match(action, actions)
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action, fn = matches[0]
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# call the action with the remaining arguments
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try:
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fn(*argv)
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sys.exit(0)
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except TypeError:
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print "Wrong number of arguments supplied"
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print "%s %s: %s" % (category, action, fn.__doc__)
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sys.exit(2)
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if __name__ == '__main__':
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main()
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