# Copyright 2010 Jacob Kaplan-Moss
# Copyright 2011 OpenStack Foundation
# 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.
"""
from __future__ import print_function
import argparse
import getpass
import logging
import sys
import warnings
from keystoneauth1 import loading
from oslo_utils import encodeutils
from oslo_utils import importutils
from oslo_utils import strutils
HAS_KEYRING = False
all_errors = ValueError
try:
import keyring
HAS_KEYRING = True
except ImportError:
pass
import novaclient
from novaclient import api_versions
import novaclient.auth_plugin
from novaclient import client
from novaclient import exceptions as exc
import novaclient.extension
from novaclient.i18n import _
from novaclient.openstack.common import cliutils
from novaclient import utils
DEFAULT_MAJOR_OS_COMPUTE_API_VERSION = "2.0"
# The default behaviour of nova client CLI is that CLI negotiates with server
# to find out the most recent version between client and server, and
# '2.latest' means to that. This value never be changed until we decided to
# change the default behaviour of nova client CLI.
DEFAULT_OS_COMPUTE_API_VERSION = '2.latest'
DEFAULT_NOVA_ENDPOINT_TYPE = 'publicURL'
DEFAULT_NOVA_SERVICE_TYPE = "compute"
HINT_HELP_MSG = (" [hint: use '--os-compute-api-version' flag to show help "
"message for proper version]")
logger = logging.getLogger(__name__)
def positive_non_zero_float(text):
if text is None:
return None
try:
value = float(text)
except ValueError:
msg = _("%s must be a float") % text
raise argparse.ArgumentTypeError(msg)
if value <= 0:
msg = _("%s must be greater than 0") % text
raise argparse.ArgumentTypeError(msg)
return value
class SecretsHelper(object):
def __init__(self, args, client):
self.args = args
self.client = client
self.key = None
self._password = None
def _validate_string(self, text):
if text is None or len(text) == 0:
return False
return True
def _make_key(self):
if self.key is not None:
return self.key
keys = [
self.client.auth_url,
self.client.projectid,
self.client.user,
self.client.region_name,
self.client.endpoint_type,
self.client.service_type,
self.client.service_name,
self.client.volume_service_name,
]
for (index, key) in enumerate(keys):
if key is None:
keys[index] = '?'
else:
keys[index] = str(keys[index])
self.key = "/".join(keys)
return self.key
def _prompt_password(self, verify=True):
pw = None
if hasattr(sys.stdin, 'isatty') and sys.stdin.isatty():
# Check for Ctl-D
try:
while True:
pw1 = getpass.getpass('OS Password: ')
if verify:
pw2 = getpass.getpass('Please verify: ')
else:
pw2 = pw1
if pw1 == pw2 and self._validate_string(pw1):
pw = pw1
break
except EOFError:
pass
return pw
def save(self, auth_token, management_url, tenant_id):
if not HAS_KEYRING or not self.args.os_cache:
return
if (auth_token == self.auth_token and
management_url == self.management_url):
# Nothing changed....
return
if not all([management_url, auth_token, tenant_id]):
raise ValueError(_("Unable to save empty management url/auth "
"token"))
value = "|".join([str(auth_token),
str(management_url),
str(tenant_id)])
keyring.set_password("novaclient_auth", self._make_key(), value)
@property
def password(self):
# Cache password so we prompt user at most once
if self._password:
pass
elif self._validate_string(self.args.os_password):
self._password = self.args.os_password
else:
verify_pass = strutils.bool_from_string(
cliutils.env("OS_VERIFY_PASSWORD", default=False), True)
self._password = self._prompt_password(verify_pass)
if not self._password:
raise exc.CommandError(
'Expecting a password provided via either '
'--os-password, env[OS_PASSWORD], or '
'prompted response')
return self._password
@property
def management_url(self):
if not HAS_KEYRING or not self.args.os_cache:
return None
management_url = None
try:
block = keyring.get_password('novaclient_auth', self._make_key())
if block:
_token, management_url, _tenant_id = block.split('|', 2)
except all_errors:
pass
return management_url
@property
def auth_token(self):
# Now is where it gets complicated since we
# want to look into the keyring module, if it
# exists and see if anything was provided in that
# file that we can use.
if not HAS_KEYRING or not self.args.os_cache:
return None
token = None
try:
block = keyring.get_password('novaclient_auth', self._make_key())
if block:
token, _management_url, _tenant_id = block.split('|', 2)
except all_errors:
pass
return token
@property
def tenant_id(self):
if not HAS_KEYRING or not self.args.os_cache:
return None
tenant_id = None
try:
block = keyring.get_password('novaclient_auth', self._make_key())
if block:
_token, _management_url, tenant_id = block.split('|', 2)
except all_errors:
pass
return tenant_id
class NovaClientArgumentParser(argparse.ArgumentParser):
def __init__(self, *args, **kwargs):
super(NovaClientArgumentParser, self).__init__(*args, **kwargs)
def error(self, message):
"""error(message: string)
Prints a usage message incorporating the message to stderr and
exits.
"""
self.print_usage(sys.stderr)
# FIXME(lzyeval): if changes occur in argparse.ArgParser._check_value
choose_from = ' (choose from'
progparts = self.prog.partition(' ')
self.exit(2, _("error: %(errmsg)s\nTry '%(mainp)s help %(subp)s'"
" for more information.\n") %
{'errmsg': message.split(choose_from)[0],
'mainp': progparts[0],
'subp': progparts[2]})
def _get_option_tuples(self, option_string):
"""returns (action, option, value) candidates for an option prefix
Returns [first candidate] if all candidates refers to current and
deprecated forms of the same options: "nova boot ... --key KEY"
parsing succeed because --key could only match --key-name,
--key_name which are current/deprecated forms of the same option.
"""
option_tuples = (super(NovaClientArgumentParser, self)
._get_option_tuples(option_string))
if len(option_tuples) > 1:
normalizeds = [option.replace('_', '-')
for action, option, value in option_tuples]
if len(set(normalizeds)) == 1:
return option_tuples[:1]
return option_tuples
class OpenStackComputeShell(object):
times = []
def _append_global_identity_args(self, parser, argv):
# Register the CLI arguments that have moved to the session object.
loading.register_session_argparse_arguments(parser)
# Peek into argv to see if os-auth-token or os-token were given,
# in which case, the token auth plugin is what the user wants
# else, we'll default to password
default_auth_plugin = 'password'
if 'os-token' in argv:
default_auth_plugin = 'token'
loading.register_auth_argparse_arguments(
parser, argv, default=default_auth_plugin)
parser.set_defaults(insecure=cliutils.env('NOVACLIENT_INSECURE',
default=False))
parser.set_defaults(os_auth_url=cliutils.env('OS_AUTH_URL',
'NOVA_URL'))
parser.set_defaults(os_username=cliutils.env('OS_USERNAME',
'NOVA_USERNAME'))
parser.set_defaults(os_password=cliutils.env('OS_PASSWORD',
'NOVA_PASSWORD'))
parser.set_defaults(os_project_name=cliutils.env(
'OS_PROJECT_NAME', 'OS_TENANT_NAME', 'NOVA_PROJECT_ID'))
parser.set_defaults(os_project_id=cliutils.env(
'OS_PROJECT_ID', 'OS_TENANT_ID'))
def get_base_parser(self, argv):
parser = NovaClientArgumentParser(
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='store_true',
help=argparse.SUPPRESS,
)
parser.add_argument('--version',
action='version',
version=novaclient.__version__)
parser.add_argument(
'--debug',
default=False,
action='store_true',
help=_("Print debugging output."))
parser.add_argument(
'--os-cache',
default=strutils.bool_from_string(
cliutils.env('OS_CACHE', default=False), True),
action='store_true',
help=_("Use the auth token cache. Defaults to False if "
"env[OS_CACHE] is not set."))
parser.add_argument(
'--timings',
default=False,
action='store_true',
help=_("Print call timing info."))
parser.add_argument(
'--os-auth-token',
help=argparse.SUPPRESS)
parser.add_argument(
'--os_username',
help=argparse.SUPPRESS)
parser.add_argument(
'--os_password',
help=argparse.SUPPRESS)
parser.add_argument(
'--os_tenant_name',
help=argparse.SUPPRESS)
parser.add_argument(
'--os_auth_url',
help=argparse.SUPPRESS)
parser.add_argument(
'--os-region-name',
metavar='<region-name>',
default=cliutils.env('OS_REGION_NAME', 'NOVA_REGION_NAME'),
help=_('Defaults to env[OS_REGION_NAME].'))
parser.add_argument(
'--os_region_name',
help=argparse.SUPPRESS)
parser.add_argument(
'--os-auth-system',
metavar='<auth-system>',
default=cliutils.env('OS_AUTH_SYSTEM'),
help=argparse.SUPPRESS)
parser.add_argument(
'--os_auth_system',
help=argparse.SUPPRESS)
parser.add_argument(
'--service-type',
metavar='<service-type>',
help=_('Defaults to compute for most actions.'))
parser.add_argument(
'--service_type',
help=argparse.SUPPRESS)
parser.add_argument(
'--service-name',
metavar='<service-name>',
default=cliutils.env('NOVA_SERVICE_NAME'),
help=_('Defaults to env[NOVA_SERVICE_NAME].'))
parser.add_argument(
'--service_name',
help=argparse.SUPPRESS)
parser.add_argument(
'--volume-service-name',
metavar='<volume-service-name>',
default=cliutils.env('NOVA_VOLUME_SERVICE_NAME'),
help=_('Defaults to env[NOVA_VOLUME_SERVICE_NAME].'))
parser.add_argument(
'--volume_service_name',
help=argparse.SUPPRESS)
parser.add_argument(
'--os-endpoint-type',
metavar='<endpoint-type>',
dest='endpoint_type',
default=cliutils.env(
'NOVA_ENDPOINT_TYPE',
default=cliutils.env(
'OS_ENDPOINT_TYPE',
default=DEFAULT_NOVA_ENDPOINT_TYPE)),
help=_('Defaults to env[NOVA_ENDPOINT_TYPE], '
'env[OS_ENDPOINT_TYPE] or ') +
DEFAULT_NOVA_ENDPOINT_TYPE + '.')
parser.add_argument(
'--endpoint-type',
help=argparse.SUPPRESS)
# NOTE(dtroyer): We can't add --endpoint_type here due to argparse
# thinking usage-list --end is ambiguous; but it
# works fine with only --endpoint-type present
# Go figure. I'm leaving this here for doc purposes.
# parser.add_argument('--endpoint_type',
# help=argparse.SUPPRESS)
parser.add_argument(
'--os-compute-api-version',
metavar='<compute-api-ver>',
default=cliutils.env('OS_COMPUTE_API_VERSION',
default=DEFAULT_OS_COMPUTE_API_VERSION),
help=_('Accepts X, X.Y (where X is major and Y is minor part) or '
'"X.latest", defaults to env[OS_COMPUTE_API_VERSION].'))
parser.add_argument(
'--os_compute_api_version',
help=argparse.SUPPRESS)
parser.add_argument(
'--bypass-url',
metavar='<bypass-url>',
dest='bypass_url',
default=cliutils.env('NOVACLIENT_BYPASS_URL'),
help="Use this API endpoint instead of the Service Catalog. "
"Defaults to env[NOVACLIENT_BYPASS_URL].")
parser.add_argument('--bypass_url',
help=argparse.SUPPRESS)
# The auth-system-plugins might require some extra options
novaclient.auth_plugin.load_auth_system_opts(parser)
self._append_global_identity_args(parser, argv)
return parser
def get_subcommand_parser(self, version, do_help=False, argv=None):
parser = self.get_base_parser(argv)
self.subcommands = {}
subparsers = parser.add_subparsers(metavar='<subcommand>')
actions_module = importutils.import_module(
"novaclient.v%s.shell" % version.ver_major)
self._find_actions(subparsers, actions_module, version, do_help)
self._find_actions(subparsers, self, version, do_help)
for extension in self.extensions:
self._find_actions(subparsers, extension.module, version, do_help)
self._add_bash_completion_subparser(subparsers)
return parser
def _add_bash_completion_subparser(self, subparsers):
subparser = subparsers.add_parser(
'bash_completion',
add_help=False,
formatter_class=OpenStackHelpFormatter
)
self.subcommands['bash_completion'] = subparser
subparser.set_defaults(func=self.do_bash_completion)
def _find_actions(self, subparsers, actions_module, version, do_help):
msg = _(" (Supported by API versions '%(start)s' - '%(end)s')")
for attr in (a for a in dir(actions_module) if a.startswith('do_')):
# I prefer to be hyphen-separated instead of underscores.
command = attr[3:].replace('_', '-')
callback = getattr(actions_module, attr)
desc = callback.__doc__ or ''
if hasattr(callback, "versioned"):
additional_msg = ""
subs = api_versions.get_substitutions(
utils.get_function_name(callback))
if do_help:
additional_msg = msg % {
'start': subs[0].start_version.get_string(),
'end': subs[-1].end_version.get_string()}
if version.is_latest():
additional_msg += HINT_HELP_MSG
subs = [versioned_method for versioned_method in subs
if version.matches(versioned_method.start_version,
versioned_method.end_version)]
if subs:
# use the "latest" substitution
callback = subs[-1].func
else:
# there is no proper versioned method
continue
desc = callback.__doc__ or desc
desc += additional_msg
action_help = desc.strip()
arguments = getattr(callback, 'arguments', [])
subparser = subparsers.add_parser(
command,
help=action_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:
start_version = kwargs.get("start_version", None)
if start_version:
start_version = api_versions.APIVersion(start_version)
end_version = kwargs.get("end_version", None)
if end_version:
end_version = api_versions.APIVersion(end_version)
else:
end_version = api_versions.APIVersion(
"%s.latest" % start_version.ver_major)
if do_help:
kwargs["help"] = kwargs.get("help", "") + (msg % {
"start": start_version.get_string(),
"end": end_version.get_string()})
else:
if not version.matches(start_version, end_version):
continue
kw = kwargs.copy()
kw.pop("start_version", None)
kw.pop("end_version", None)
subparser.add_argument(*args, **kw)
subparser.set_defaults(func=callback)
def setup_debugging(self, debug):
if not debug:
return
streamformat = "%(levelname)s (%(module)s:%(lineno)d) %(message)s"
# Set up the root logger to debug so that the submodules can
# print debug messages
logging.basicConfig(level=logging.DEBUG,
format=streamformat)
logging.getLogger('iso8601').setLevel(logging.WARNING)
def main(self, argv):
# Parse args once to find version and debug settings
parser = self.get_base_parser(argv)
# NOTE(dtroyer): Hackery to handle --endpoint_type due to argparse
# thinking usage-list --end is ambiguous; but it
# works fine with only --endpoint-type present
# Go figure.
if '--endpoint_type' in argv:
spot = argv.index('--endpoint_type')
argv[spot] = '--endpoint-type'
# For backwards compat with old os-auth-token parameter
if '--os-auth-token' in argv:
spot = argv.index('--os-auth-token')
argv[spot] = '--os-token'
(args, args_list) = parser.parse_known_args(argv)
self.setup_debugging(args.debug)
self.extensions = []
do_help = ('help' in argv) or (
'--help' in argv) or ('-h' in argv) or not argv
# bash-completion should not require authentification
skip_auth = do_help or (
'bash-completion' in argv)
# Discover available auth plugins
novaclient.auth_plugin.discover_auth_systems()
if not args.os_compute_api_version:
api_version = api_versions.get_api_version(
DEFAULT_MAJOR_OS_COMPUTE_API_VERSION)
else:
api_version = api_versions.get_api_version(
args.os_compute_api_version)
os_username = args.os_username
os_user_id = args.os_user_id
os_password = None # Fetched and set later as needed
os_project_name = getattr(
args, 'os_project_name', getattr(args, 'os_tenant_name', None))
os_project_id = getattr(
args, 'os_project_id', getattr(args, 'os_tenant_id', None))
os_auth_url = args.os_auth_url
os_region_name = args.os_region_name
os_auth_system = args.os_auth_system
endpoint_type = args.endpoint_type
insecure = args.insecure
service_type = args.service_type
service_name = args.service_name
volume_service_name = args.volume_service_name
bypass_url = args.bypass_url
os_cache = args.os_cache
cacert = args.os_cacert
timeout = args.timeout
keystone_session = None
keystone_auth = None
# We may have either, both or none of these.
# If we have both, we don't need USERNAME, PASSWORD etc.
# Fill in the blanks from the SecretsHelper if possible.
# Finally, authenticate unless we have both.
# Note if we don't auth we probably don't have a tenant ID so we can't
# cache the token.
auth_token = getattr(args, 'os_token', None)
management_url = bypass_url if bypass_url else None
if os_auth_system and os_auth_system != "keystone":
warnings.warn(_(
'novaclient auth plugins that are not keystone are deprecated.'
' Auth plugins should now be done as plugins to keystoneauth'
' and selected with --os-auth-type or OS_AUTH_TYPE'))
auth_plugin = novaclient.auth_plugin.load_plugin(os_auth_system)
else:
auth_plugin = None
if not endpoint_type:
endpoint_type = DEFAULT_NOVA_ENDPOINT_TYPE
# This allow users to use endpoint_type as (internal, public or admin)
# just like other openstack clients (glance, cinder etc)
if endpoint_type in ['internal', 'public', 'admin']:
endpoint_type += 'URL'
if not service_type:
# Note(alex_xu): We need discover version first, so if there isn't
# service type specified, we use default nova service type.
service_type = DEFAULT_NOVA_SERVICE_TYPE
# If we have an auth token but no management_url, we must auth anyway.
# Expired tokens are handled by client.py:_cs_request
must_auth = not (auth_token and management_url)
# Do not use Keystone session for cases with no session support. The
# presence of auth_plugin means os_auth_system is present and is not
# keystone.
use_session = True
if auth_plugin or bypass_url or os_cache or volume_service_name:
use_session = False
# FIXME(usrleon): Here should be restrict for project id same as
# for os_username or os_password but for compatibility it is not.
if must_auth and not skip_auth:
if auth_plugin:
auth_plugin.parse_opts(args)
if not auth_plugin or not auth_plugin.opts:
if not os_username and not os_user_id:
raise exc.CommandError(
_("You must provide a username "
"or user id via --os-username, --os-user-id, "
"env[OS_USERNAME] or env[OS_USER_ID]"))
if not any([os_project_name, os_project_id]):
raise exc.CommandError(_("You must provide a project name or"
" project id via --os-project-name,"
" --os-project-id, env[OS_PROJECT_ID]"
" or env[OS_PROJECT_NAME]. You may"
" use os-project and os-tenant"
" interchangeably."))
if not os_auth_url:
if os_auth_system and os_auth_system != 'keystone':
os_auth_url = auth_plugin.get_auth_url()
if not os_auth_url:
raise exc.CommandError(
_("You must provide an auth url "
"via either --os-auth-url or env[OS_AUTH_URL] "
"or specify an auth_system which defines a "
"default url with --os-auth-system "
"or env[OS_AUTH_SYSTEM]"))
if use_session:
# Not using Nova auth plugin, so use keystone
with utils.record_time(self.times, args.timings,
'auth_url', args.os_auth_url):
keystone_session = (
loading.load_session_from_argparse_arguments(args))
keystone_auth = (
loading.load_auth_from_argparse_arguments(args))
else:
# set password for auth plugins
os_password = args.os_password
if (not skip_auth and
not any([os_project_name, os_project_id])):
raise exc.CommandError(_("You must provide a project name or"
" project id via --os-project-name,"
" --os-project-id, env[OS_PROJECT_ID]"
" or env[OS_PROJECT_NAME]. You may"
" use os-project and os-tenant"
" interchangeably."))
if not os_auth_url and not skip_auth:
raise exc.CommandError(
_("You must provide an auth url "
"via either --os-auth-url or env[OS_AUTH_URL]"))
# This client is just used to discover api version. Version API needn't
# microversion, so we just pass version 2 at here.
self.cs = client.Client(
api_versions.APIVersion("2.0"),
os_username, os_password, os_project_name,
tenant_id=os_project_id, user_id=os_user_id,
auth_url=os_auth_url, insecure=insecure,
region_name=os_region_name, endpoint_type=endpoint_type,
extensions=self.extensions, service_type=service_type,
service_name=service_name, auth_system=os_auth_system,
auth_plugin=auth_plugin, auth_token=auth_token,
volume_service_name=volume_service_name,
timings=args.timings, bypass_url=bypass_url,
os_cache=os_cache, http_log_debug=args.debug,
cacert=cacert, timeout=timeout,
session=keystone_session, auth=keystone_auth)
if not skip_auth:
if not api_version.is_latest():
if api_version > api_versions.APIVersion("2.0"):
if not api_version.matches(novaclient.API_MIN_VERSION,
novaclient.API_MAX_VERSION):
raise exc.CommandError(
_("The specified version isn't supported by "
"client. The valid version range is '%(min)s' "
"to '%(max)s'") % {
"min": novaclient.API_MIN_VERSION.get_string(),
"max": novaclient.API_MAX_VERSION.get_string()}
)
api_version = api_versions.discover_version(self.cs, api_version)
# build available subcommands based on version
self.extensions = client.discover_extensions(api_version)
self._run_extension_hooks('__pre_parse_args__')
subcommand_parser = self.get_subcommand_parser(
api_version, do_help=do_help, argv=argv)
self.parser = subcommand_parser
if args.help or not argv:
subcommand_parser.print_help()
return 0
args = subcommand_parser.parse_args(argv)
self._run_extension_hooks('__post_parse_args__', args)
# Short-circuit and deal with help right away.
if args.func == self.do_help:
self.do_help(args)
return 0
elif args.func == self.do_bash_completion:
self.do_bash_completion(args)
return 0
if not args.service_type:
service_type = (cliutils.get_service_type(args.func) or
DEFAULT_NOVA_SERVICE_TYPE)
if cliutils.isunauthenticated(args.func):
# NOTE(alex_xu): We need authentication for discover microversion.
# But the subcommands may needn't it. If the subcommand needn't,
# we clear the session arguements.
keystone_session = None
keystone_auth = None
# Recreate client object with discovered version.
self.cs = client.Client(
api_version,
os_username, os_password, os_project_name,
tenant_id=os_project_id, user_id=os_user_id,
auth_url=os_auth_url, insecure=insecure,
region_name=os_region_name, endpoint_type=endpoint_type,
extensions=self.extensions, service_type=service_type,
service_name=service_name, auth_system=os_auth_system,
auth_plugin=auth_plugin, auth_token=auth_token,
volume_service_name=volume_service_name,
timings=args.timings, bypass_url=bypass_url,
os_cache=os_cache, http_log_debug=args.debug,
cacert=cacert, timeout=timeout,
session=keystone_session, auth=keystone_auth)
# Now check for the password/token of which pieces of the
# identifying keyring key can come from the underlying client
if must_auth:
helper = SecretsHelper(args, self.cs.client)
self.cs.client.keyring_saver = helper
if (auth_plugin and auth_plugin.opts and
"os_password" not in auth_plugin.opts):
use_pw = False
else:
use_pw = True
tenant_id = helper.tenant_id
# Allow commandline to override cache
if not auth_token:
auth_token = helper.auth_token
if not management_url:
management_url = helper.management_url
if tenant_id and auth_token and management_url:
self.cs.client.tenant_id = tenant_id
self.cs.client.auth_token = auth_token
self.cs.client.management_url = management_url
self.cs.client.password_func = lambda: helper.password
elif use_pw:
# We're missing something, so auth with user/pass and save
# the result in our helper.
self.cs.client.password = helper.password
try:
# This does a couple of bits which are useful even if we've
# got the token + service URL already. It exits fast in that case.
if not cliutils.isunauthenticated(args.func):
if not use_session:
# Only call authenticate() if Nova auth plugin is used.
# If keystone is used, authentication is handled as part
# of session.
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)
if args.timings:
self._dump_timings(self.times + self.cs.get_timings())
def _dump_timings(self, timings):
class Tyme(object):
def __init__(self, url, seconds):
self.url = url
self.seconds = seconds
results = [Tyme(url, end - start) for url, start, end in timings]
total = 0.0
for tyme in results:
total += tyme.seconds
results.append(Tyme("Total", total))
utils.print_list(results, ["url", "seconds"], sortby_index=None)
def _run_extension_hooks(self, hook_type, *args, **kwargs):
"""Run hooks for all registered extensions."""
for extension in self.extensions:
extension.run_hooks(hook_type, *args, **kwargs)
def do_bash_completion(self, _args):
"""
Prints all of the commands and options to stdout so that the
nova.bash_completion script doesn't have to hard code them.
"""
commands = set()
options = set()
for sc_str, sc in self.subcommands.items():
commands.add(sc_str)
for option in sc._optionals._option_string_actions.keys():
options.add(option)
commands.remove('bash-completion')
commands.remove('bash_completion')
print(' '.join(commands | options))
@cliutils.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 __init__(self, prog, indent_increment=2, max_help_position=32,
width=None):
super(OpenStackHelpFormatter, self).__init__(prog, indent_increment,
max_help_position, width)
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:
argv = [encodeutils.safe_decode(a) for a in sys.argv[1:]]
OpenStackComputeShell().main(argv)
except Exception as exc:
logger.debug(exc, exc_info=1)
print("ERROR (%s): %s"
% (exc.__class__.__name__,
encodeutils.exception_to_unicode(exc)),
file=sys.stderr)
sys.exit(1)
except KeyboardInterrupt:
print("... terminating nova client", file=sys.stderr)
sys.exit(130)
if __name__ == "__main__":
main()