# Copyright 2011-2014 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 Cinder API. """ from __future__ import print_function import argparse import getpass import logging import sys from keystoneauth1 import discover from keystoneauth1 import loading from keystoneauth1 import session from keystoneauth1.identity import v2 as v2_auth from keystoneauth1.identity import v3 as v3_auth from keystoneauth1.exceptions import DiscoveryFailure from oslo_utils import encodeutils from oslo_utils import importutils osprofiler_profiler = importutils.try_import("osprofiler.profiler") # noqa import requests import six import six.moves.urllib.parse as urlparse from cinderclient import api_versions from cinderclient import client from cinderclient import exceptions as exc from cinderclient import _i18n from cinderclient._i18n import _ from cinderclient import utils import cinderclient.auth_plugin # Enable i18n lazy translation _i18n.enable_lazy() DEFAULT_MAJOR_OS_VOLUME_API_VERSION = "3" DEFAULT_CINDER_ENDPOINT_TYPE = 'publicURL' V1_SHELL = 'cinderclient.v1.shell' V2_SHELL = 'cinderclient.v2.shell' V3_SHELL = 'cinderclient.v3.shell' HINT_HELP_MSG = (" [hint: use '--os-volume-api-version' flag to show help " "message for proper version]") logging.basicConfig() logger = logging.getLogger(__name__) class CinderClientArgumentParser(argparse.ArgumentParser): def __init__(self, *args, **kwargs): super(CinderClientArgumentParser, 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): """Avoid ambiguity in argument abbreviation. The idea of this method is to override the default behaviour to avoid ambiguity in the abbreviation feature of argparse. In the case that the ambiguity is generated by 2 or more parameters and only one is visible in the help and the others are with help=argparse.SUPPRESS, the ambiguity is solved by taking the visible one. The use case is for parameters that are left hidden for backward compatibility. """ result = super(CinderClientArgumentParser, self)._get_option_tuples( option_string) if len(result) > 1: aux = [x for x in result if x[0].help != argparse.SUPPRESS] if len(aux) == 1: result = aux return result class OpenStackCinderShell(object): def __init__(self): self.ks_logger = None self.client_logger = None def get_base_parser(self): parser = CinderClientArgumentParser( prog='cinder', description=__doc__.strip(), epilog=_('Run "cinder help SUBCOMMAND" for help on a subcommand.'), 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=cinderclient.__version__) parser.add_argument('-d', '--debug', action='store_true', default=utils.env('CINDERCLIENT_DEBUG', default=False), help=_('Shows debugging output.')) parser.add_argument('--os-auth-system', metavar='', default=utils.env('OS_AUTH_SYSTEM'), help=_('Defaults to env[OS_AUTH_SYSTEM].')) parser.add_argument('--os_auth_system', help=argparse.SUPPRESS) parser.add_argument('--service-type', metavar='', help=_('Service type. ' 'For most actions, default is volume.')) parser.add_argument('--service_type', help=argparse.SUPPRESS) parser.add_argument('--service-name', metavar='', default=utils.env('CINDER_SERVICE_NAME'), help=_('Service name. ' 'Default=env[CINDER_SERVICE_NAME].')) parser.add_argument('--service_name', help=argparse.SUPPRESS) parser.add_argument('--volume-service-name', metavar='', default=utils.env('CINDER_VOLUME_SERVICE_NAME'), help=_('Volume service name. ' 'Default=env[CINDER_VOLUME_SERVICE_NAME].')) parser.add_argument('--volume_service_name', help=argparse.SUPPRESS) parser.add_argument('--os-endpoint-type', metavar='', default=utils.env('CINDER_ENDPOINT_TYPE', default=utils.env('OS_ENDPOINT_TYPE', default=DEFAULT_CINDER_ENDPOINT_TYPE)), help=_('Endpoint type, which is publicURL or ' 'internalURL. ' 'Default=env[OS_ENDPOINT_TYPE] or ' 'nova env[CINDER_ENDPOINT_TYPE] or %s.') % DEFAULT_CINDER_ENDPOINT_TYPE) parser.add_argument('--os_endpoint_type', help=argparse.SUPPRESS) parser.add_argument('--endpoint-type', metavar='', dest='os_endpoint_type', help=_('DEPRECATED! Use --os-endpoint-type.')) parser.add_argument('--endpoint_type', dest='os_endpoint_type', help=argparse.SUPPRESS) parser.add_argument('--os-volume-api-version', metavar='', default=utils.env('OS_VOLUME_API_VERSION', default=None), help=_('Block Storage API version. ' 'Accepts X, X.Y (where X is major and Y is minor ' 'part).' 'Default=env[OS_VOLUME_API_VERSION].')) parser.add_argument('--os_volume_api_version', help=argparse.SUPPRESS) parser.add_argument('--bypass-url', metavar='', dest='bypass_url', default=utils.env('CINDERCLIENT_BYPASS_URL'), help=_("Use this API endpoint instead of the " "Service Catalog. Defaults to " "env[CINDERCLIENT_BYPASS_URL].")) parser.add_argument('--bypass_url', help=argparse.SUPPRESS) parser.add_argument('--retries', metavar='', type=int, default=0, help=_('Number of retries.')) if osprofiler_profiler: parser.add_argument('--profile', metavar='HMAC_KEY', help=_('HMAC key to use for encrypting ' 'context data for performance profiling ' 'of operation. This key needs to match the ' 'one configured on the cinder api server. ' 'Without key the profiling will not be ' 'triggered even if osprofiler is enabled ' 'on server side.')) self._append_global_identity_args(parser) # The auth-system-plugins might require some extra options cinderclient.auth_plugin.discover_auth_systems() cinderclient.auth_plugin.load_auth_system_opts(parser) return parser def _append_global_identity_args(self, parser): # FIXME(bklei): these are global identity (Keystone) arguments which # should be consistent and shared by all service clients. Therefore, # they should be provided by python-keystoneclient. We will need to # refactor this code once this functionality is available in # python-keystoneclient. parser.add_argument( '--os-auth-strategy', metavar='', default=utils.env('OS_AUTH_STRATEGY', default='keystone'), help=_('Authentication strategy (Env: OS_AUTH_STRATEGY' ', default keystone). For now, any other value will' ' disable the authentication.')) parser.add_argument( '--os_auth_strategy', help=argparse.SUPPRESS) parser.add_argument('--os-username', metavar='', default=utils.env('OS_USERNAME', 'CINDER_USERNAME'), help=_('OpenStack user name. ' 'Default=env[OS_USERNAME].')) parser.add_argument('--os_username', help=argparse.SUPPRESS) parser.add_argument('--os-password', metavar='', default=utils.env('OS_PASSWORD', 'CINDER_PASSWORD'), help=_('Password for OpenStack user. ' 'Default=env[OS_PASSWORD].')) parser.add_argument('--os_password', help=argparse.SUPPRESS) parser.add_argument('--os-tenant-name', metavar='', default=utils.env('OS_TENANT_NAME', 'OS_PROJECT_NAME', 'CINDER_PROJECT_ID'), help=_('Tenant name. ' 'Default=env[OS_TENANT_NAME].')) parser.add_argument('--os_tenant_name', help=argparse.SUPPRESS) parser.add_argument('--os-tenant-id', metavar='', default=utils.env('OS_TENANT_ID', 'OS_PROJECT_ID', 'CINDER_TENANT_ID'), help=_('ID for the tenant. ' 'Default=env[OS_TENANT_ID].')) parser.add_argument('--os_tenant_id', help=argparse.SUPPRESS) parser.add_argument('--os-auth-url', metavar='', default=utils.env('OS_AUTH_URL', 'CINDER_URL'), help=_('URL for the authentication service. ' 'Default=env[OS_AUTH_URL].')) parser.add_argument('--os_auth_url', help=argparse.SUPPRESS) parser.add_argument( '--os-user-id', metavar='', default=utils.env('OS_USER_ID'), help=_('Authentication user ID (Env: OS_USER_ID).')) parser.add_argument( '--os_user_id', help=argparse.SUPPRESS) parser.add_argument( '--os-user-domain-id', metavar='', default=utils.env('OS_USER_DOMAIN_ID'), help=_('OpenStack user domain ID. ' 'Defaults to env[OS_USER_DOMAIN_ID].')) parser.add_argument( '--os_user_domain_id', help=argparse.SUPPRESS) parser.add_argument( '--os-user-domain-name', metavar='', default=utils.env('OS_USER_DOMAIN_NAME'), help=_('OpenStack user domain name. ' 'Defaults to env[OS_USER_DOMAIN_NAME].')) parser.add_argument( '--os_user_domain_name', help=argparse.SUPPRESS) parser.add_argument( '--os-project-id', metavar='', default=utils.env('OS_PROJECT_ID'), help=_('Another way to specify tenant ID. ' 'This option is mutually exclusive with ' ' --os-tenant-id. ' 'Defaults to env[OS_PROJECT_ID].')) parser.add_argument( '--os_project_id', help=argparse.SUPPRESS) parser.add_argument( '--os-project-name', metavar='', default=utils.env('OS_PROJECT_NAME'), help=_('Another way to specify tenant name. ' 'This option is mutually exclusive with ' ' --os-tenant-name. ' 'Defaults to env[OS_PROJECT_NAME].')) parser.add_argument( '--os_project_name', help=argparse.SUPPRESS) parser.add_argument( '--os-project-domain-id', metavar='', default=utils.env('OS_PROJECT_DOMAIN_ID'), help=_('Defaults to env[OS_PROJECT_DOMAIN_ID].')) parser.add_argument( '--os-project-domain-name', metavar='', default=utils.env('OS_PROJECT_DOMAIN_NAME'), help=_('Defaults to env[OS_PROJECT_DOMAIN_NAME].')) parser.add_argument('--os-region-name', metavar='', default=utils.env('OS_REGION_NAME', 'CINDER_REGION_NAME'), help=_('Region name. ' 'Default=env[OS_REGION_NAME].')) parser.add_argument('--os_region_name', help=argparse.SUPPRESS) parser.add_argument( '--os-token', metavar='', default=utils.env('OS_TOKEN'), help=_('Defaults to env[OS_TOKEN].')) parser.add_argument( '--os_token', help=argparse.SUPPRESS) parser.add_argument( '--os-url', metavar='', default=utils.env('OS_URL'), help=_('Defaults to env[OS_URL].')) parser.add_argument( '--os_url', help=argparse.SUPPRESS) # Register the CLI arguments that have moved to the session object. loading.register_session_argparse_arguments(parser) parser.set_defaults(insecure=utils.env('CINDERCLIENT_INSECURE', default=False)) def get_subcommand_parser(self, version, do_help=False, input_args=None): parser = self.get_base_parser() self.subcommands = {} subparsers = parser.add_subparsers(metavar='') if version.ver_major == 2: actions_module = importutils.import_module(V2_SHELL) elif version.ver_major == 3: actions_module = importutils.import_module(V3_SHELL) else: actions_module = importutils.import_module(V1_SHELL) self._find_actions(subparsers, actions_module, version, do_help, input_args) self._find_actions(subparsers, self, version, do_help, input_args) for extension in self.extensions: self._find_actions(subparsers, extension.module, version, do_help, input_args) 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 _build_versioned_help_message(self, start_version, end_version): if start_version and end_version: msg = (_(" (Supported by API versions %(start)s - %(end)s)") % {"start": start_version.get_string(), "end": end_version.get_string()}) elif start_version: msg = (_(" (Supported by API version %(start)s and later)") % {"start": start_version.get_string()}) else: msg = (_(" Supported until API version %(end)s)") % {"end": end_version.get_string()}) return six.text_type(msg) def _find_actions(self, subparsers, actions_module, version, do_help, input_args): 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().split('\n')[0] if hasattr(callback, "versioned"): additional_msg = "" subs = api_versions.get_substitutions( utils.get_function_name(callback)) if do_help: additional_msg = self._build_versioned_help_message( subs[0].start_version, subs[-1].end_version) 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 not subs: # There is no proper versioned method. continue # Use the "latest" substitution. callback = subs[-1].func desc = callback.__doc__ or desc action_help = desc.strip().split('\n')[0] action_help += additional_msg 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 # NOTE(ntpttr): We get a counter for each argument in this # command here because during the microversion check we only # want to raise an exception if no version of the argument # matches the current microversion. The exception will only # be raised after the last instance of a particular argument # fails the check. arg_counter = dict() for (args, kwargs) in arguments: arg_counter[args[0]] = arg_counter.get(args[0], 0) + 1 for (args, kwargs) in arguments: start_version = kwargs.get("start_version", None) start_version = api_versions.APIVersion(start_version) end_version = kwargs.get('end_version', None) end_version = api_versions.APIVersion(end_version) if do_help and (start_version or end_version): kwargs["help"] = kwargs.get("help", "") + ( self._build_versioned_help_message(start_version, end_version)) if not version.matches(start_version, end_version): if args[0] in input_args and command == input_args[0]: if arg_counter[args[0]] == 1: # This is the last version of this argument, # raise the exception. raise exc.UnsupportedAttribute(args[0], start_version, end_version) arg_counter[args[0]] -= 1 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 streamhandler = logging.StreamHandler() streamformat = "%(levelname)s (%(module)s:%(lineno)d) %(message)s" streamhandler.setFormatter(logging.Formatter(streamformat)) logger.setLevel(logging.DEBUG if debug else logging.WARNING) logger.addHandler(streamhandler) self.client_logger = logging.getLogger(client.__name__) ch = logging.StreamHandler() self.client_logger.setLevel(logging.DEBUG) self.client_logger.addHandler(ch) if hasattr(requests, 'logging'): requests.logging.getLogger(requests.__name__).addHandler(ch) self.ks_logger = logging.getLogger("keystoneauth") self.ks_logger.setLevel(logging.DEBUG) def _delimit_metadata_args(self, argv): """This function adds -- separator at the appropriate spot """ word = '--metadata' tmp = [] # flag is true in between metadata option and next option metadata_options = False if word in argv: for arg in argv: if arg == word: metadata_options = True elif metadata_options: if arg.startswith('--'): metadata_options = False elif '=' not in arg: tmp.append(u'--') metadata_options = False tmp.append(arg) return tmp else: return argv def main(self, 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) api_version_input = True self.options = options do_help = ('help' in argv) or ( '--help' in argv) or ('-h' in argv) or not argv if not options.os_volume_api_version: api_version = api_versions.get_api_version( DEFAULT_MAJOR_OS_VOLUME_API_VERSION) else: api_version = api_versions.get_api_version( options.os_volume_api_version) # build available subcommands based on version major_version_string = "%s" % api_version.ver_major self.extensions = client.discover_extensions(major_version_string) self._run_extension_hooks('__pre_parse_args__') subcommand_parser = self.get_subcommand_parser(api_version, do_help, args) self.parser = subcommand_parser if options.help or not argv: subcommand_parser.print_help() return 0 argv = self._delimit_metadata_args(argv) 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 (os_username, os_password, os_tenant_name, os_auth_url, os_region_name, os_tenant_id, endpoint_type, service_type, service_name, volume_service_name, bypass_url, cacert, os_auth_system) = ( args.os_username, args.os_password, args.os_tenant_name, args.os_auth_url, args.os_region_name, args.os_tenant_id, args.os_endpoint_type, args.service_type, args.service_name, args.volume_service_name, args.bypass_url, args.os_cacert, args.os_auth_system) if os_auth_system and os_auth_system != "keystone": auth_plugin = cinderclient.auth_plugin.load_plugin(os_auth_system) else: auth_plugin = None if not service_type: service_type = client.SERVICE_TYPES[major_version_string] # FIXME(usrleon): Here should be restrict for project id same as # for os_username or os_password but for compatibility it is not. # V3 stuff project_info_provided = ((self.options.os_tenant_name or self.options.os_tenant_id) or (self.options.os_project_name and (self.options.os_project_domain_name or self.options.os_project_domain_id)) or self.options.os_project_id) if not utils.isunauthenticated(args.func): if auth_plugin: auth_plugin.parse_opts(args) if not auth_plugin or not auth_plugin.opts: if not os_username: raise exc.CommandError("You must provide a user name " "through --os-username or " "env[OS_USERNAME].") if not os_password: # No password, If we've got a tty, try prompting for it if hasattr(sys.stdin, 'isatty') and sys.stdin.isatty(): # Check for Ctl-D try: os_password = getpass.getpass('OS Password: ') # Initialize options.os_password with password # input from tty. It is used in _get_keystone_session. options.os_password = os_password except EOFError: pass # No password because we didn't have a tty or the # user Ctl-D when prompted. if not os_password: raise exc.CommandError("You must provide a password " "through --os-password, " "env[OS_PASSWORD] " "or, prompted response.") if not project_info_provided: raise exc.CommandError(_( "You must provide a tenant_name, tenant_id, " "project_id or project_name (with " "project_domain_name or project_domain_id) via " " --os-tenant-name (env[OS_TENANT_NAME])," " --os-tenant-id (env[OS_TENANT_ID])," " --os-project-id (env[OS_PROJECT_ID])" " --os-project-name (env[OS_PROJECT_NAME])," " --os-project-domain-id " "(env[OS_PROJECT_DOMAIN_ID])" " --os-project-domain-name " "(env[OS_PROJECT_DOMAIN_NAME])" )) 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 authentication URL " "through --os-auth-url or env[OS_AUTH_URL].") if not project_info_provided: raise exc.CommandError(_( "You must provide a tenant_name, tenant_id, " "project_id or project_name (with " "project_domain_name or project_domain_id) via " " --os-tenant-name (env[OS_TENANT_NAME])," " --os-tenant-id (env[OS_TENANT_ID])," " --os-project-id (env[OS_PROJECT_ID])" " --os-project-name (env[OS_PROJECT_NAME])," " --os-project-domain-id " "(env[OS_PROJECT_DOMAIN_ID])" " --os-project-domain-name " "(env[OS_PROJECT_DOMAIN_NAME])" )) if not os_auth_url: raise exc.CommandError( "You must provide an authentication URL " "through --os-auth-url or env[OS_AUTH_URL].") auth_session = None if not auth_plugin: auth_session = self._get_keystone_session() insecure = self.options.insecure self.cs = client.Client( api_version, os_username, os_password, os_tenant_name, os_auth_url, region_name=os_region_name, tenant_id=os_tenant_id, endpoint_type=endpoint_type, extensions=self.extensions, service_type=service_type, service_name=service_name, volume_service_name=volume_service_name, bypass_url=bypass_url, retries=options.retries, http_log_debug=args.debug, insecure=insecure, cacert=cacert, auth_system=os_auth_system, auth_plugin=auth_plugin, session=auth_session, logger=self.ks_logger if auth_session else self.client_logger) try: if not utils.isunauthenticated(args.func): self.cs.authenticate() except exc.Unauthorized: raise exc.CommandError("OpenStack credentials are not valid.") except exc.AuthorizationFailure: raise exc.CommandError("Unable to authorize user.") endpoint_api_version = None # Try to get the API version from the endpoint URL. If that fails fall # back to trying to use what the user specified via # --os-volume-api-version or with the OS_VOLUME_API_VERSION environment # variable. Fail safe is to use the default API setting. try: endpoint_api_version = \ self.cs.get_volume_api_version_from_endpoint() except exc.UnsupportedVersion: endpoint_api_version = options.os_volume_api_version if api_version_input: logger.warning("Cannot determine the API version from " "the endpoint URL. Falling back to the " "user-specified version: %s", endpoint_api_version) else: logger.warning("Cannot determine the API version from the " "endpoint URL or user input. Falling back " "to the default API version: %s", endpoint_api_version) profile = osprofiler_profiler and options.profile if profile: osprofiler_profiler.init(options.profile) try: args.func(self.cs, args) finally: if profile: trace_id = osprofiler_profiler.get().get_base_id() print("Trace ID: %s" % trace_id) print("To display trace use next command:\n" "osprofiler trace show --html %s " % trace_id) def _run_extension_hooks(self, hook_type, *args, **kwargs): """Runs hooks for all registered extensions.""" for extension in self.extensions: extension.run_hooks(hook_type, *args, **kwargs) def do_bash_completion(self, args): """Prints arguments for bash_completion. Prints all commands and options to stdout so that the cinder.bash_completion script does not have to hard code them. """ commands = set() options = set() for sc_str, sc in list(self.subcommands.items()): commands.add(sc_str) for option in sc._optionals._option_string_actions: options.add(option) commands.remove('bash-completion') commands.remove('bash_completion') print(' '.join(commands | options)) @utils.arg('command', metavar='', nargs='?', help='Shows help for .') def do_help(self, args): """ Shows 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() def get_v2_auth(self, v2_auth_url): username = self.options.os_username password = self.options.os_password tenant_id = self.options.os_tenant_id or self.options.os_project_id tenant_name = (self.options.os_tenant_name or self.options.os_project_name) return v2_auth.Password( v2_auth_url, username=username, password=password, tenant_id=tenant_id, tenant_name=tenant_name) def get_v3_auth(self, v3_auth_url): username = self.options.os_username user_id = self.options.os_user_id user_domain_name = self.options.os_user_domain_name user_domain_id = self.options.os_user_domain_id password = self.options.os_password project_id = self.options.os_project_id or self.options.os_tenant_id project_name = (self.options.os_project_name or self.options.os_tenant_name) project_domain_name = self.options.os_project_domain_name project_domain_id = self.options.os_project_domain_id return v3_auth.Password( v3_auth_url, username=username, password=password, user_id=user_id, user_domain_name=user_domain_name, user_domain_id=user_domain_id, project_id=project_id, project_name=project_name, project_domain_name=project_domain_name, project_domain_id=project_domain_id, ) def _discover_auth_versions(self, session, auth_url): # discover the API versions the server is supporting based on the # given URL v2_auth_url = None v3_auth_url = None try: ks_discover = discover.Discover(session=session, url=auth_url) v2_auth_url = ks_discover.url_for('2.0') v3_auth_url = ks_discover.url_for('3.0') except DiscoveryFailure: # Discovery response mismatch. Raise the error raise except Exception: # Some public clouds throw some other exception or doesn't support # discovery. In that case try to determine version from auth_url # API version from the original URL url_parts = urlparse.urlparse(auth_url) (scheme, netloc, path, params, query, fragment) = url_parts path = path.lower() if path.startswith('/v3'): v3_auth_url = auth_url elif path.startswith('/v2'): v2_auth_url = auth_url else: raise exc.CommandError('Unable to determine the Keystone' ' version to authenticate with ' 'using the given auth_url.') return (v2_auth_url, v3_auth_url) def _get_keystone_session(self, **kwargs): # first create a Keystone session cacert = self.options.os_cacert or None cert = self.options.os_cert or None if cert and self.options.os_key: cert = cert, self.options.os_key insecure = self.options.insecure or False if insecure: verify = False else: verify = cacert or True ks_session = session.Session(verify=verify, cert=cert) # discover the supported keystone versions using the given url (v2_auth_url, v3_auth_url) = self._discover_auth_versions( session=ks_session, auth_url=self.options.os_auth_url) username = self.options.os_username or None user_domain_name = self.options.os_user_domain_name or None user_domain_id = self.options.os_user_domain_id or None auth = None if v3_auth_url and v2_auth_url: # support both v2 and v3 auth. Use v3 if possible. if username: if user_domain_name or user_domain_id: # use v3 auth auth = self.get_v3_auth(v3_auth_url) else: # use v2 auth auth = self.get_v2_auth(v2_auth_url) elif v3_auth_url: # support only v3 auth = self.get_v3_auth(v3_auth_url) elif v2_auth_url: # support only v2 auth = self.get_v2_auth(v2_auth_url) else: raise exc.CommandError('Unable to determine the Keystone version ' 'to authenticate with using the given ' 'auth_url.') ks_session.auth = auth return ks_session # 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: if sys.version_info >= (3, 0): OpenStackCinderShell().main(sys.argv[1:]) else: OpenStackCinderShell().main([encodeutils.safe_decode(item) for item in sys.argv[1:]]) except KeyboardInterrupt: print("... terminating cinder client", file=sys.stderr) sys.exit(130) except Exception as e: logger.debug(e, exc_info=1) print("ERROR: %s" % six.text_type(e), file=sys.stderr) sys.exit(1) if __name__ == "__main__": main()