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#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2011 X.commerce, a business unit of eBay Inc.
# 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 bare-metal management.
"""
import ast
import errno
import gettext
import math
import netaddr
import optparse
import os
import sys
# 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 config
from nova import context
from nova import exception
from nova.openstack.common import cfg
from nova.openstack.common import cliutils
from nova.openstack.common import importutils
from nova.openstack.common import log as logging
from nova.openstack.common import rpc
from nova.openstack.common import timeutils
from nova import utils
from nova import version
from nova.virt.baremetal import db as bmdb
from nova.virt.baremetal.db import migration as bmdb_migration
CONF = cfg.CONF
# Decorators for actions
def args(*args, **kwargs):
def _decorator(func):
func.__dict__.setdefault('args', []).insert(0, (args, kwargs))
return func
return _decorator
class BareMetalDbCommands(object):
"""Class for managing the bare-metal database."""
def __init__(self):
pass
@args('--version', dest='version', metavar='<version>',
help='Bare-metal Database version')
def sync(self, version=None):
"""Sync the database up to the most recent version."""
bmdb_migration.db_sync(version)
def version(self):
"""Print the current database version."""
v = bmdb_migration.db_version()
print(v)
# return for unittest
return v
CATEGORIES = {
'db': BareMetalDbCommands,
}
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 add_command_parsers(subparsers):
parser = subparsers.add_parser('bash-completion')
parser.add_argument('query_category', nargs='?')
for category in CATEGORIES:
command_object = CATEGORIES[category]()
parser = subparsers.add_parser(category)
parser.set_defaults(command_object=command_object)
category_subparsers = parser.add_subparsers(dest='action')
for (action, action_fn) in methods_of(command_object):
parser = category_subparsers.add_parser(action)
action_kwargs = []
for args, kwargs in getattr(action_fn, 'args', []):
action_kwargs.append(kwargs['dest'])
kwargs['dest'] = 'action_kwarg_' + kwargs['dest']
parser.add_argument(*args, **kwargs)
parser.set_defaults(action_fn=action_fn)
parser.set_defaults(action_kwargs=action_kwargs)
parser.add_argument('action_args', nargs='*')
category_opt = cfg.SubCommandOpt('category',
title='Command categories',
help='Available categories',
handler=add_command_parsers)
def main():
"""Parse options and call the appropriate class/method."""
CONF.register_cli_opt(category_opt)
try:
config.parse_args(sys.argv)
logging.setup("nova")
except cfg.ConfigFilesNotFoundError:
cfgfile = CONF.config_file[-1] if CONF.config_file else None
if cfgfile and not os.access(cfgfile, os.R_OK):
st = os.stat(cfgfile)
print(_("Could not read %s. Re-running with sudo") % cfgfile)
try:
os.execvp('sudo', ['sudo', '-u', '#%s' % st.st_uid] + sys.argv)
except Exception:
print(_('sudo failed, continuing as if nothing happened'))
print(_('Please re-run nova-manage as root.'))
sys.exit(2)
if CONF.category.name == "version":
print(version.version_string_with_package())
sys.exit(0)
if CONF.category.name == "bash-completion":
if not CONF.category.query_category:
print(" ".join(CATEGORIES.keys()))
elif CONF.category.query_category in CATEGORIES:
fn = CATEGORIES[CONF.category.query_category]
command_object = fn()
actions = methods_of(command_object)
print(" ".join([k for (k, v) in actions]))
sys.exit(0)
fn = CONF.category.action_fn
fn_args = [arg.decode('utf-8') for arg in CONF.category.action_args]
fn_kwargs = {}
for k in CONF.category.action_kwargs:
v = getattr(CONF.category, 'action_kwarg_' + k)
if v is None:
continue
if isinstance(v, basestring):
v = v.decode('utf-8')
fn_kwargs[k] = v
# call the action with the remaining arguments
# check arguments
try:
cliutils.validate_args(fn, *fn_args, **fn_kwargs)
except cliutils.MissingArgs as e:
print(fn.__doc__)
parser.print_help()
print(e)
sys.exit(1)
try:
fn(*fn_args, **fn_kwargs)
sys.exit(0)
except Exception:
print(_("Command failed, please check log for more info"))
raise
if __name__ == '__main__':
main()
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