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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.
# Interactive shell based on Django:
#
# Copyright (c) 2005, the Lawrence Journal-World
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# 3. Neither the name of Django nor the names of its contributors may be
# used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""
CLI interface for nova management.
"""
import gettext
import logging
import os
import sys
import time
import IPy
# If ../nova/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
sys.path.insert(0, possible_topdir)
gettext.install('nova', unicode=1)
from nova import context
from nova import db
from nova import exception
from nova import flags
from nova import quota
from nova import utils
from nova.auth import manager
from nova.cloudpipe import pipelib
FLAGS = flags.FLAGS
flags.DECLARE('fixed_range', 'nova.network.manager')
flags.DECLARE('num_networks', 'nova.network.manager')
flags.DECLARE('network_size', 'nova.network.manager')
flags.DECLARE('vlan_start', 'nova.network.manager')
flags.DECLARE('vpn_start', 'nova.network.manager')
class VpnCommands(object):
"""Class for managing VPNs."""
def __init__(self):
self.manager = manager.AuthManager()
self.pipe = pipelib.CloudPipe()
def list(self):
"""Print a listing of the VPNs for all projects."""
print "%-12s\t" % 'project',
print "%-20s\t" % 'ip:port',
print "%s" % 'state'
for project in self.manager.get_projects():
print "%-12s\t" % project.name,
try:
s = "%s:%s" % (project.vpn_ip, project.vpn_port)
except exception.NotFound:
s = "None"
print "%-20s\t" % s,
vpn = self._vpn_for(project.id)
if vpn:
command = "ping -c1 -w1 %s > /dev/null; echo $?"
out, _err = utils.execute(command % vpn['private_dns_name'],
check_exit_code=False)
if out.strip() == '0':
net = 'up'
else:
net = 'down'
print vpn['private_dns_name'],
print vpn['node_name'],
print vpn['instance_id'],
print vpn['state_description'],
print net
else:
print None
def _vpn_for(self, project_id):
"""Get the VPN instance for a project ID."""
for instance in db.instance_get_all(context.get_admin_context()):
if (instance['image_id'] == FLAGS.vpn_image_id
and not instance['state_description'] in
['shutting_down', 'shutdown']
and instance['project_id'] == project_id):
return instance
def spawn(self):
"""Run all VPNs."""
for p in reversed(self.manager.get_projects()):
if not self._vpn_for(p.id):
print 'spawning %s' % p.id
self.pipe.launch_vpn_instance(p.id)
time.sleep(10)
def run(self, project_id):
"""Start the VPN for a given project."""
self.pipe.launch_vpn_instance(project_id)
class ShellCommands(object):
def bpython(self):
"""Runs a bpython shell.
Falls back to Ipython/python shell if unavailable"""
self.run('bpython')
def ipython(self):
"""Runs an Ipython shell.
Falls back to Python shell if unavailable"""
self.run('ipython')
def python(self):
"""Runs a python shell.
Falls back to Python shell if unavailable"""
self.run('python')
def run(self, shell=None):
"""Runs a Python interactive interpreter.
args: [shell=bpython]"""
if not shell:
shell = 'bpython'
if shell == 'bpython':
try:
import bpython
bpython.embed()
except ImportError:
shell = 'ipython'
if shell == 'ipython':
try:
import IPython
# Explicitly pass an empty list as arguments, because
# otherwise IPython would use sys.argv from this script.
shell = IPython.Shell.IPShell(argv=[])
shell.mainloop()
except ImportError:
shell = 'python'
if shell == 'python':
import code
try:
# Try activating rlcompleter, because it's handy.
import readline
except ImportError:
pass
else:
# We don't have to wrap the following import in a 'try',
# because we already know 'readline' was imported successfully.
import rlcompleter
readline.parse_and_bind("tab:complete")
code.interact()
def script(self, path):
"""Runs the script from the specifed path with flags set properly.
arguments: path"""
exec(compile(open(path).read(), path, 'exec'), locals(), globals())
class RoleCommands(object):
"""Class for managing roles."""
def __init__(self):
self.manager = manager.AuthManager()
def add(self, user, role, project=None):
"""adds role to user
if project is specified, adds project specific role
arguments: user, role [project]"""
self.manager.add_role(user, role, project)
def has(self, user, role, project=None):
"""checks to see if user has role
if project is specified, returns True if user has
the global role and the project role
arguments: user, role [project]"""
print self.manager.has_role(user, role, project)
def remove(self, user, role, project=None):
"""removes role from user
if project is specified, removes project specific role
arguments: user, role [project]"""
self.manager.remove_role(user, role, project)
class UserCommands(object):
"""Class for managing users."""
@staticmethod
def _print_export(user):
"""Print export variables to use with API."""
print 'export EC2_ACCESS_KEY=%s' % user.access
print 'export EC2_SECRET_KEY=%s' % user.secret
def __init__(self):
self.manager = manager.AuthManager()
def admin(self, name, access=None, secret=None):
"""creates a new admin and prints exports
arguments: name [access] [secret]"""
user = self.manager.create_user(name, access, secret, True)
self._print_export(user)
def create(self, name, access=None, secret=None):
"""creates a new user and prints exports
arguments: name [access] [secret]"""
user = self.manager.create_user(name, access, secret, False)
self._print_export(user)
def delete(self, name):
"""deletes an existing user
arguments: name"""
self.manager.delete_user(name)
def exports(self, name):
"""prints access and secrets for user in export format
arguments: name"""
user = self.manager.get_user(name)
if user:
self._print_export(user)
else:
print "User %s doesn't exist" % name
def list(self):
"""lists all users
arguments: <none>"""
for user in self.manager.get_users():
print user.name
def modify(self, name, access_key, secret_key, is_admin):
"""update a users keys & admin flag
arguments: accesskey secretkey admin
leave any field blank to ignore it, admin should be 'T', 'F', or blank
"""
if not is_admin:
is_admin = None
elif is_admin.upper()[0] == 'T':
is_admin = True
else:
is_admin = False
self.manager.modify_user(name, access_key, secret_key, is_admin)
class ProjectCommands(object):
"""Class for managing projects."""
def __init__(self):
self.manager = manager.AuthManager()
def add(self, project_id, user_id):
"""Adds user to project
arguments: project_id user_id"""
self.manager.add_to_project(user_id, project_id)
def create(self, name, project_manager, description=None):
"""Creates a new project
arguments: name project_manager [description]"""
self.manager.create_project(name, project_manager, description)
def delete(self, name):
"""Deletes an existing project
arguments: name"""
self.manager.delete_project(name)
def environment(self, project_id, user_id, filename='novarc'):
"""Exports environment variables to an sourcable file
arguments: project_id user_id [filename='novarc]"""
rc = self.manager.get_environment_rc(user_id, project_id)
with open(filename, 'w') as f:
f.write(rc)
def list(self):
"""Lists all projects
arguments: <none>"""
for project in self.manager.get_projects():
print project.name
def quota(self, project_id, key=None, value=None):
"""Set or display quotas for project
arguments: project_id [key] [value]"""
ctxt = context.get_admin_context()
if key:
quo = {'project_id': project_id, key: value}
try:
db.quota_update(ctxt, project_id, quo)
except exception.NotFound:
db.quota_create(ctxt, quo)
project_quota = quota.get_quota(ctxt, project_id)
for key, value in project_quota.iteritems():
print '%s: %s' % (key, value)
def remove(self, project_id, user_id):
"""Removes user from project
arguments: project_id user_id"""
self.manager.remove_from_project(user_id, project_id)
def scrub(self, project_id):
"""Deletes data associated with project
arguments: project_id"""
ctxt = context.get_admin_context()
network_ref = db.project_get_network(ctxt, project_id)
db.network_disassociate(ctxt, network_ref['id'])
groups = db.security_group_get_by_project(ctxt, project_id)
for group in groups:
db.security_group_destroy(ctxt, group['id'])
def zipfile(self, project_id, user_id, filename='nova.zip'):
"""Exports credentials for project to a zip file
arguments: project_id user_id [filename='nova.zip]"""
try:
zip_file = self.manager.get_credentials(user_id, project_id)
with open(filename, 'w') as f:
f.write(zip_file)
except db.api.NoMoreNetworks:
print ('No more networks available. If this is a new '
'installation, you need\nto call something like this:\n\n'
' nova-manage network create 10.0.0.0/8 10 64\n\n')
class FloatingIpCommands(object):
"""Class for managing floating ip."""
def create(self, host, range):
"""Creates floating ips for host by range
arguments: host ip_range"""
for address in IPy.IP(range):
db.floating_ip_create(context.get_admin_context(),
{'address': str(address),
'host': host})
def delete(self, ip_range):
"""Deletes floating ips by range
arguments: range"""
for address in IPy.IP(ip_range):
db.floating_ip_destroy(context.get_admin_context(),
str(address))
def list(self, host=None):
"""Lists all floating ips (optionally by host)
arguments: [host]"""
ctxt = context.get_admin_context()
if host == None:
floating_ips = db.floating_ip_get_all(ctxt)
else:
floating_ips = db.floating_ip_get_all_by_host(ctxt, host)
for floating_ip in floating_ips:
instance = None
if floating_ip['fixed_ip']:
instance = floating_ip['fixed_ip']['instance']['ec2_id']
print "%s\t%s\t%s" % (floating_ip['host'],
floating_ip['address'],
instance)
class NetworkCommands(object):
"""Class for managing networks."""
def create(self, fixed_range=None, num_networks=None,
network_size=None, vlan_start=None, vpn_start=None):
"""Creates fixed ips for host by range
arguments: [fixed_range=FLAG], [num_networks=FLAG],
[network_size=FLAG], [vlan_start=FLAG],
[vpn_start=FLAG]"""
if not fixed_range:
fixed_range = FLAGS.fixed_range
if not num_networks:
num_networks = FLAGS.num_networks
if not network_size:
network_size = FLAGS.network_size
if not vlan_start:
vlan_start = FLAGS.vlan_start
if not vpn_start:
vpn_start = FLAGS.vpn_start
net_manager = utils.import_object(FLAGS.network_manager)
net_manager.create_networks(context.get_admin_context(),
fixed_range, int(num_networks),
int(network_size), int(vlan_start),
int(vpn_start))
CATEGORIES = [
('user', UserCommands),
('project', ProjectCommands),
('role', RoleCommands),
('shell', ShellCommands),
('vpn', VpnCommands),
('floating', FloatingIpCommands),
('network', NetworkCommands)]
def lazy_match(name, key_value_tuples):
"""Finds all objects that have a key that case insensitively contains
[name] key_value_tuples is a list of tuples of the form (key, value)
returns a list of tuples of the form (key, value)"""
result = []
for (k, v) in key_value_tuples:
if k.lower().find(name.lower()) == 0:
result.append((k, v))
if len(result) == 0:
print "%s does not match any options:" % name
for k, _v in key_value_tuples:
print "\t%s" % k
sys.exit(2)
if len(result) > 1:
print "%s matched multiple options:" % name
for k, _v in result:
print "\t%s" % k
sys.exit(2)
return result
def methods_of(obj):
"""Get all callable methods of an object that don't start with underscore
returns a list of tuples of the form (method_name, method)"""
result = []
for i in dir(obj):
if callable(getattr(obj, i)) and not i.startswith('_'):
result.append((i, getattr(obj, i)))
return result
def main():
"""Parse options and call the appropriate class/method."""
utils.default_flagfile()
argv = FLAGS(sys.argv)
if FLAGS.verbose:
logging.getLogger().setLevel(logging.DEBUG)
script_name = argv.pop(0)
if len(argv) < 1:
print script_name + " category action [<args>]"
print "Available categories:"
for k, _ in CATEGORIES:
print "\t%s" % k
sys.exit(2)
category = argv.pop(0)
matches = lazy_match(category, CATEGORIES)
# instantiate the command group object
category, fn = matches[0]
command_object = fn()
actions = methods_of(command_object)
if len(argv) < 1:
print script_name + " category action [<args>]"
print "Available actions for %s category:" % category
for k, _v in actions:
print "\t%s" % k
sys.exit(2)
action = argv.pop(0)
matches = lazy_match(action, actions)
action, fn = matches[0]
# call the action with the remaining arguments
try:
fn(*argv)
sys.exit(0)
except TypeError:
print "Possible wrong number of arguments supplied"
print "%s %s: %s" % (category, action, fn.__doc__)
raise
if __name__ == '__main__':
main()
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