258 lines
8.5 KiB
Python
258 lines
8.5 KiB
Python
# Copyright 2010 Jacob Kaplan-Moss
|
|
|
|
# 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.
|
|
|
|
"""
|
|
Command-line interface to the OpenStack Nova API.
|
|
"""
|
|
|
|
import argparse
|
|
import httplib2
|
|
import os
|
|
import sys
|
|
|
|
from novaclient import exceptions as exc
|
|
from novaclient import utils
|
|
from novaclient.v1_0 import shell as shell_v1_0
|
|
from novaclient.v1_1 import shell as shell_v1_1
|
|
|
|
|
|
def env(e):
|
|
return os.environ.get(e, '')
|
|
|
|
|
|
class OpenStackComputeShell(object):
|
|
|
|
def get_base_parser(self):
|
|
parser = argparse.ArgumentParser(
|
|
prog='nova',
|
|
description=__doc__.strip(),
|
|
epilog='See "nova help COMMAND" '\
|
|
'for help on a specific command.',
|
|
add_help=False,
|
|
formatter_class=OpenStackHelpFormatter,
|
|
)
|
|
|
|
# Global arguments
|
|
parser.add_argument('-h', '--help',
|
|
action='help',
|
|
help=argparse.SUPPRESS,
|
|
)
|
|
|
|
parser.add_argument('--debug',
|
|
default=False,
|
|
action='store_true',
|
|
help=argparse.SUPPRESS)
|
|
|
|
parser.add_argument('--username',
|
|
default=env('NOVA_USERNAME'),
|
|
help='Defaults to env[NOVA_USERNAME].')
|
|
|
|
parser.add_argument('--apikey',
|
|
default=env('NOVA_API_KEY'),
|
|
help='Defaults to env[NOVA_API_KEY].')
|
|
|
|
parser.add_argument('--password',
|
|
default=env('NOVA_PASSWORD'),
|
|
help='Defaults to env[NOVA_PASSWORD].')
|
|
|
|
parser.add_argument('--projectid',
|
|
default=env('NOVA_PROJECT_ID'),
|
|
help='Defaults to env[NOVA_PROJECT_ID].')
|
|
|
|
parser.add_argument('--url',
|
|
default=env('NOVA_URL'),
|
|
help='Defaults to env[NOVA_URL].')
|
|
|
|
parser.add_argument('--region_name',
|
|
default=env('NOVA_REGION_NAME'),
|
|
help='Defaults to env[NOVA_REGION_NAME].')
|
|
|
|
parser.add_argument('--endpoint_name',
|
|
default=env('NOVA_ENDPOINT_NAME'),
|
|
help='Defaults to env[NOVA_ENDPOINT_NAME] or "publicURL.')
|
|
|
|
parser.add_argument('--version',
|
|
default=env('NOVA_VERSION'),
|
|
help='Accepts 1.0 or 1.1, defaults to env[NOVA_VERSION].')
|
|
|
|
parser.add_argument('--insecure',
|
|
default=False,
|
|
action='store_true',
|
|
help=argparse.SUPPRESS)
|
|
|
|
return parser
|
|
|
|
def get_subcommand_parser(self, version):
|
|
parser = self.get_base_parser()
|
|
|
|
self.subcommands = {}
|
|
subparsers = parser.add_subparsers(metavar='<subcommand>')
|
|
|
|
try:
|
|
actions_module = {
|
|
'1': shell_v1_0,
|
|
'1.0': shell_v1_0,
|
|
'1.1': shell_v1_1,
|
|
'2': shell_v1_1,
|
|
}[version]
|
|
except KeyError:
|
|
actions_module = shell_v1_0
|
|
|
|
self._find_actions(subparsers, actions_module)
|
|
self._find_actions(subparsers, self)
|
|
|
|
return parser
|
|
|
|
def _find_actions(self, subparsers, actions_module):
|
|
for attr in (a for a in dir(actions_module) if a.startswith('do_')):
|
|
# I prefer to be hypen-separated instead of underscores.
|
|
command = attr[3:].replace('_', '-')
|
|
callback = getattr(actions_module, attr)
|
|
desc = callback.__doc__ or ''
|
|
help = desc.strip().split('\n')[0]
|
|
arguments = getattr(callback, 'arguments', [])
|
|
|
|
subparser = subparsers.add_parser(command,
|
|
help=help,
|
|
description=desc,
|
|
add_help=False,
|
|
formatter_class=OpenStackHelpFormatter
|
|
)
|
|
subparser.add_argument('-h', '--help',
|
|
action='help',
|
|
help=argparse.SUPPRESS,
|
|
)
|
|
self.subcommands[command] = subparser
|
|
for (args, kwargs) in arguments:
|
|
subparser.add_argument(*args, **kwargs)
|
|
subparser.set_defaults(func=callback)
|
|
|
|
def main(self, argv):
|
|
# Parse args once to find version
|
|
parser = self.get_base_parser()
|
|
(options, args) = parser.parse_known_args(argv)
|
|
|
|
# build available subcommands based on version
|
|
subcommand_parser = self.get_subcommand_parser(options.version)
|
|
self.parser = subcommand_parser
|
|
|
|
# Parse args again and call whatever callback was selected
|
|
args = subcommand_parser.parse_args(argv)
|
|
|
|
# Deal with global arguments
|
|
if args.debug:
|
|
httplib2.debuglevel = 1
|
|
|
|
# Short-circuit and deal with help right away.
|
|
if args.func == self.do_help:
|
|
self.do_help(args)
|
|
return 0
|
|
|
|
(user, apikey, password, projectid, url, region_name,
|
|
endpoint_name, insecure) = (args.username, args.apikey,
|
|
args.password, args.projectid, args.url,
|
|
args.region_name, args.endpoint_name, args.insecure)
|
|
|
|
if not endpoint_name:
|
|
endpoint_name = 'publicURL'
|
|
|
|
#FIXME(usrleon): Here should be restrict for project id same as
|
|
# for username or password but for compatibility it is not.
|
|
|
|
if not user:
|
|
raise exc.CommandError("You must provide a username, either "
|
|
"via --username or via "
|
|
"env[NOVA_USERNAME]")
|
|
|
|
if not password:
|
|
if not apikey:
|
|
raise exc.CommandError("You must provide a password, either "
|
|
"via --password or via env[NOVA_PASSWORD]")
|
|
else:
|
|
password = apikey
|
|
|
|
if options.version and options.version != '1.0':
|
|
if not projectid:
|
|
raise exc.CommandError("You must provide an projectid, either "
|
|
"via --projectid or via "
|
|
"env[NOVA_PROJECT_ID")
|
|
|
|
if not url:
|
|
raise exc.CommandError("You must provide a auth url, either "
|
|
"via --url or via "
|
|
"env[NOVA_URL")
|
|
|
|
self.cs = self.get_api_class(options.version)(user, password,
|
|
projectid, url, insecure,
|
|
region_name=region_name,
|
|
endpoint_name=endpoint_name)
|
|
|
|
try:
|
|
self.cs.authenticate()
|
|
except exc.Unauthorized:
|
|
raise exc.CommandError("Invalid OpenStack Nova credentials.")
|
|
except exc.AuthorizationFailure:
|
|
raise exc.CommandError("Unable to authorize user")
|
|
|
|
args.func(self.cs, args)
|
|
|
|
def get_api_class(self, version):
|
|
try:
|
|
return {
|
|
"1": shell_v1_0.CLIENT_CLASS,
|
|
"1.0": shell_v1_0.CLIENT_CLASS,
|
|
"1.1": shell_v1_1.CLIENT_CLASS,
|
|
"2": shell_v1_1.CLIENT_CLASS,
|
|
}[version]
|
|
except KeyError:
|
|
return shell_v1_0.CLIENT_CLASS
|
|
|
|
@utils.arg('command', metavar='<subcommand>', nargs='?',
|
|
help='Display help for <subcommand>')
|
|
def do_help(self, args):
|
|
"""
|
|
Display help about this program or one of its subcommands.
|
|
"""
|
|
if args.command:
|
|
if args.command in self.subcommands:
|
|
self.subcommands[args.command].print_help()
|
|
else:
|
|
raise exc.CommandError("'%s' is not a valid subcommand" %
|
|
args.command)
|
|
else:
|
|
self.parser.print_help()
|
|
|
|
|
|
# I'm picky about my shell help.
|
|
class OpenStackHelpFormatter(argparse.HelpFormatter):
|
|
def start_section(self, heading):
|
|
# Title-case the headings
|
|
heading = '%s%s' % (heading[0].upper(), heading[1:])
|
|
super(OpenStackHelpFormatter, self).start_section(heading)
|
|
|
|
|
|
def main():
|
|
try:
|
|
OpenStackComputeShell().main(sys.argv[1:])
|
|
|
|
except Exception, e:
|
|
if httplib2.debuglevel == 1:
|
|
raise # dump stack.
|
|
else:
|
|
print >> sys.stderr, e
|
|
sys.exit(1)
|