# Copyright 2014
# The Cloudscaling Group, Inc.
#
# 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.
###
# This code is taken from python-novaclient. Goal is minimal modification.
###
"""
Command-line interface to the OpenStack Magnum API.
"""
import argparse
import logging
import os
import sys
from oslo_utils import encodeutils
from oslo_utils import importutils
from oslo_utils import strutils
from magnumclient.common import cliutils
from magnumclient import exceptions as exc
from magnumclient.i18n import _
from magnumclient.v1 import client as client_v1
from magnumclient.v1 import shell as shell_v1
from magnumclient import version
profiler = importutils.try_import("osprofiler.profiler")
HAS_KEYRING = False
all_errors = ValueError
try:
import keyring
HAS_KEYRING = True
try:
if isinstance(keyring.get_keyring(), keyring.backend.GnomeKeyring):
import gnomekeyring
all_errors = (ValueError,
gnomekeyring.IOError,
gnomekeyring.NoKeyringDaemonError)
except Exception:
pass
except ImportError:
pass
LATEST_API_VERSION = ('1', 'latest')
DEFAULT_INTERFACE = 'public'
DEFAULT_SERVICE_TYPE = 'container-infra'
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 MagnumClientArgumentParser(argparse.ArgumentParser):
def __init__(self, *args, **kwargs):
super(MagnumClientArgumentParser, 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]})
class OpenStackMagnumShell(object):
def get_base_parser(self):
parser = MagnumClientArgumentParser(
prog='magnum',
description=__doc__.strip(),
epilog='See "magnum 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=version.version_info.version_string())
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)),
action='store_true',
help=_("Use the auth token cache. Defaults to "
"False if env[OS_CACHE] is not set."))
parser.add_argument('--os-region-name',
metavar='<region-name>',
default=os.environ.get('OS_REGION_NAME'),
help=_('Region name. '
'Default=env[OS_REGION_NAME].'))
# TODO(mattf) - add get_timings support to Client
# parser.add_argument('--timings',
# default=False,
# action='store_true',
# help="Print call timing info")
# TODO(mattf) - use timeout
# parser.add_argument('--timeout',
# default=600,
# metavar='<seconds>',
# type=positive_non_zero_float,
# help="Set HTTP call timeout (in seconds)")
parser.add_argument('--os-auth-url',
metavar='<auth-auth-url>',
default=cliutils.env('OS_AUTH_URL', default=None),
help=_('Defaults to env[OS_AUTH_URL].'))
parser.add_argument('--os-user-id',
metavar='<auth-user-id>',
default=cliutils.env('OS_USER_ID', default=None),
help=_('Defaults to env[OS_USER_ID].'))
parser.add_argument('--os-username',
metavar='<auth-username>',
default=cliutils.env('OS_USERNAME', default=None),
help=_('Defaults to env[OS_USERNAME].'))
parser.add_argument('--os-user-domain-id',
metavar='<auth-user-domain-id>',
default=cliutils.env('OS_USER_DOMAIN_ID',
default=None),
help=_('Defaults to env[OS_USER_DOMAIN_ID].'))
parser.add_argument('--os-user-domain-name',
metavar='<auth-user-domain-name>',
default=cliutils.env('OS_USER_DOMAIN_NAME',
default=None),
help=_('Defaults to env[OS_USER_DOMAIN_NAME].'))
parser.add_argument('--os-project-id',
metavar='<auth-project-id>',
default=cliutils.env('OS_PROJECT_ID',
default=None),
help=_('Defaults to env[OS_PROJECT_ID].'))
parser.add_argument('--os-project-name',
metavar='<auth-project-name>',
default=cliutils.env('OS_PROJECT_NAME',
default=None),
help=_('Defaults to env[OS_PROJECT_NAME].'))
parser.add_argument('--os-tenant-id',
metavar='<auth-tenant-id>',
default=cliutils.env('OS_TENANT_ID',
default=None),
help=argparse.SUPPRESS)
parser.add_argument('--os-tenant-name',
metavar='<auth-tenant-name>',
default=cliutils.env('OS_TENANT_NAME',
default=None),
help=argparse.SUPPRESS)
parser.add_argument('--os-project-domain-id',
metavar='<auth-project-domain-id>',
default=cliutils.env('OS_PROJECT_DOMAIN_ID',
default=None),
help=_('Defaults to env[OS_PROJECT_DOMAIN_ID].'))
parser.add_argument('--os-project-domain-name',
metavar='<auth-project-domain-name>',
default=cliutils.env('OS_PROJECT_DOMAIN_NAME',
default=None),
help=_('Defaults to '
'env[OS_PROJECT_DOMAIN_NAME].'))
parser.add_argument('--os-token',
metavar='<auth-token>',
default=cliutils.env('OS_TOKEN', default=None),
help=_('Defaults to env[OS_TOKEN].'))
parser.add_argument('--os-password',
metavar='<auth-password>',
default=cliutils.env('OS_PASSWORD',
default=None),
help=_('Defaults to env[OS_PASSWORD].'))
parser.add_argument('--service-type',
metavar='<service-type>',
help=_('Defaults to container-infra for all '
'actions.'))
parser.add_argument('--service_type',
help=argparse.SUPPRESS)
parser.add_argument('--endpoint-type',
metavar='<endpoint-type>',
default=cliutils.env('OS_ENDPOINT_TYPE',
default=None),
help=argparse.SUPPRESS)
parser.add_argument('--os-endpoint-type',
metavar='<os-endpoint-type>',
default=cliutils.env('OS_ENDPOINT_TYPE',
default=None),
help=_('Defaults to env[OS_ENDPOINT_TYPE]'))
parser.add_argument('--os-interface',
metavar='<os-interface>',
default=cliutils.env(
'OS_INTERFACE',
default=DEFAULT_INTERFACE),
help=argparse.SUPPRESS)
parser.add_argument('--os-cloud',
metavar='<auth-cloud>',
default=cliutils.env('OS_CLOUD', default=None),
help=_('Defaults to env[OS_CLOUD].'))
# 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('--magnum-api-version',
metavar='<magnum-api-ver>',
default=cliutils.env(
'MAGNUM_API_VERSION',
default='latest'),
help=_('Accepts "api", '
'defaults to env[MAGNUM_API_VERSION].'))
parser.add_argument('--magnum_api_version',
help=argparse.SUPPRESS)
parser.add_argument('--os-cacert',
metavar='<ca-certificate>',
default=cliutils.env('OS_CACERT', default=None),
help=_('Specify a CA bundle file to use in '
'verifying a TLS (https) server '
'certificate. Defaults to env[OS_CACERT].'))
parser.add_argument('--os-endpoint-override',
metavar='<endpoint-override>',
default=cliutils.env('OS_ENDPOINT_OVERRIDE',
default=None),
help=_("Use this API endpoint instead of the "
"Service Catalog."))
parser.add_argument('--bypass-url',
metavar='<bypass-url>',
default=cliutils.env('BYPASS_URL', default=None),
dest='bypass_url',
help=argparse.SUPPRESS)
parser.add_argument('--bypass_url',
help=argparse.SUPPRESS)
parser.add_argument('--insecure',
default=cliutils.env('MAGNUMCLIENT_INSECURE',
default=False),
action='store_true',
help=_("Do not verify https connections"))
if profiler:
parser.add_argument('--profile',
metavar='HMAC_KEY',
default=cliutils.env('OS_PROFILE',
default=None),
help='HMAC key to use for encrypting context '
'data for performance profiling of operation. '
'This key should be the value of the HMAC key '
'configured for the OSprofiler middleware in '
'magnum; it is specified in the Magnum '
'configuration file at '
'"/etc/magnum/magnum.conf". '
'Without the key, profiling will not be '
'triggered even if OSprofiler is enabled on '
'the server side.')
return parser
def get_subcommand_parser(self, version):
parser = self.get_base_parser()
self.subcommands = {}
subparsers = parser.add_subparsers(metavar='<subcommand>')
try:
actions_modules = {
'1': shell_v1.COMMAND_MODULES
}[version]
except KeyError:
actions_modules = shell_v1.COMMAND_MODULES
for actions_module in actions_modules:
self._find_actions(subparsers, actions_module)
self._find_actions(subparsers, self)
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):
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 ''
action_help = desc.strip()
arguments = getattr(callback, 'arguments', [])
group_args = getattr(callback, 'deprecated_groups', [])
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 (old_info, new_info, req) in group_args:
group = subparser.add_mutually_exclusive_group(required=req)
group.add_argument(*old_info[0], **old_info[1])
group.add_argument(*new_info[0], **new_info[1])
for (args, kwargs) in arguments:
subparser.add_argument(*args, **kwargs)
subparser.set_defaults(func=callback)
def setup_debugging(self, debug):
if debug:
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)
else:
streamformat = "%(levelname)s %(message)s"
logging.basicConfig(level=logging.CRITICAL,
format=streamformat)
def _check_version(self, api_version):
if api_version == 'latest':
return LATEST_API_VERSION
else:
try:
versions = tuple(int(i) for i in api_version.split('.'))
except ValueError:
versions = ()
if len(versions) == 1:
# Default value of magnum_api_version is '1'.
# If user not specify the value of api version, not passing
# headers at all.
magnum_api_version = None
elif len(versions) == 2:
magnum_api_version = api_version
# In the case of '1.0'
if versions[1] == 0:
magnum_api_version = None
else:
msg = _("The requested API version %(ver)s is an unexpected "
"format. Acceptable formats are 'X', 'X.Y', or the "
"literal string '%(latest)s'."
) % {'ver': api_version, 'latest': 'latest'}
raise exc.CommandError(msg)
api_major_version = versions[0]
return (api_major_version, magnum_api_version)
def _ensure_auth_info(self, args):
if not cliutils.isunauthenticated(args.func):
if (not (args.os_token and
(args.os_auth_url or args.os_endpoint_override)) and
not args.os_cloud
):
if not (args.os_username or args.os_user_id):
raise exc.CommandError(
"You must provide a username via either --os-username "
"or via env[OS_USERNAME]"
)
if not args.os_password:
raise exc.CommandError(
"You must provide a password via either "
"--os-password, env[OS_PASSWORD], or prompted "
"response"
)
if (not args.os_project_name and not args.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_NAME] or env[OS_PROJECT_ID]"
)
if not args.os_auth_url:
raise exc.CommandError(
"You must provide an auth url via either "
"--os-auth-url or via env[OS_AUTH_URL]"
)
def main(self, argv):
# NOTE(Christoph Jansen): With Python 3.4 argv somehow becomes a Map.
# This hack fixes it.
argv = list(argv)
# Parse args once to find version and debug settings
parser = self.get_base_parser()
(options, args) = parser.parse_known_args(argv)
self.setup_debugging(options.debug)
# 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'
# build available subcommands based on version
(api_major_version, magnum_api_version) = (
self._check_version(options.magnum_api_version))
subcommand_parser = (
self.get_subcommand_parser(api_major_version)
)
self.parser = subcommand_parser
if options.help or not argv:
subcommand_parser.print_help()
return 0
args = subcommand_parser.parse_args(argv)
# Short-circuit and deal with help right away.
# NOTE(jamespage): args.func is not guaranteed with python >= 3.4
if not hasattr(args, 'func') or 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:
args.service_type = DEFAULT_SERVICE_TYPE
if args.bypass_url:
args.os_endpoint_override = args.bypass_url
args.os_project_id = (args.os_project_id or args.os_tenant_id)
args.os_project_name = (args.os_project_name or args.os_tenant_name)
self._ensure_auth_info(args)
try:
client = {
'1': client_v1,
}[api_major_version]
except KeyError:
client = client_v1
args.os_endpoint_type = (args.os_endpoint_type or args.endpoint_type)
if args.os_endpoint_type:
args.os_interface = args.os_endpoint_type
if args.os_interface.endswith('URL'):
args.os_interface = args.os_interface[:-3]
kwargs = {}
if profiler:
kwargs["profile"] = args.profile
self.cs = client.Client(
cloud=args.os_cloud,
user_id=args.os_user_id,
username=args.os_username,
password=args.os_password,
auth_token=args.os_token,
project_id=args.os_project_id,
project_name=args.os_project_name,
user_domain_id=args.os_user_domain_id,
user_domain_name=args.os_user_domain_name,
project_domain_id=args.os_project_domain_id,
project_domain_name=args.os_project_domain_name,
auth_url=args.os_auth_url,
service_type=args.service_type,
region_name=args.os_region_name,
magnum_url=args.os_endpoint_override,
interface=args.os_interface,
insecure=args.insecure,
api_version=args.magnum_api_version,
**kwargs
)
self._check_deprecation(args.func, argv)
try:
args.func(self.cs, args)
except (cliutils.DuplicateArgs, cliutils.MissingArgs):
self.do_help(args)
raise
if profiler and args.profile:
trace_id = profiler.get().get_base_id()
print("To display trace use the command:\n\n"
" osprofiler trace show --html %s " % trace_id)
def _check_deprecation(self, func, argv):
if not hasattr(func, 'deprecated_groups'):
return
for (old_info, new_info, required) in func.deprecated_groups:
old_param = old_info[0][0]
new_param = new_info[0][0]
old_value, new_value = None, None
for i in range(len(argv)):
cur_arg = argv[i]
if cur_arg == old_param:
old_value = argv[i + 1]
elif cur_arg == new_param[0]:
new_value = argv[i + 1]
if old_value and not new_value:
print(
'WARNING: The %s parameter is deprecated and will be '
'removed in a future release. Use the %s parameter to '
'avoid seeing this message.'
% (old_param, new_param))
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))
cliutils.print_list(results, ["url", "seconds"], sortby_index=None)
def do_bash_completion(self, _args):
"""Prints arguments for bash-completion.
Prints all of the commands and options to stdout so that the
magnum.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."""
# NOTE(jamespage): args.command is not guaranteed with python >= 3.4
command = getattr(args, 'command', '')
if 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:
OpenStackMagnumShell().main(map(encodeutils.safe_decode, sys.argv[1:]))
except Exception as e:
logger.debug(e, exc_info=1)
print("ERROR: %s" % encodeutils.safe_encode(str(e)),
file=sys.stderr)
sys.exit(1)
if __name__ == "__main__":
main()