664 lines
27 KiB
Python
664 lines
27 KiB
Python
# Copyright 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Command-line interface to the OpenStack Images API.
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"""
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import argparse
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import copy
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import getpass
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import hashlib
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import json
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import logging
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import os
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import sys
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import traceback
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from oslo_utils import encodeutils
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from oslo_utils import importutils
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import urllib.parse
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import glanceclient
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from glanceclient._i18n import _
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from glanceclient.common import utils
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from glanceclient import exc
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from keystoneauth1 import discover
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from keystoneauth1 import exceptions as ks_exc
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from keystoneauth1.identity import v2 as v2_auth
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from keystoneauth1.identity import v3 as v3_auth
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from keystoneauth1 import loading
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osprofiler_profiler = importutils.try_import("osprofiler.profiler")
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SUPPORTED_VERSIONS = [1, 2]
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class OpenStackImagesShell(object):
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def _append_global_identity_args(self, parser, argv):
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# register common identity args
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parser.set_defaults(os_auth_url=utils.env('OS_AUTH_URL'))
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parser.set_defaults(os_project_name=utils.env(
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'OS_PROJECT_NAME', 'OS_TENANT_NAME'))
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parser.set_defaults(os_project_id=utils.env(
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'OS_PROJECT_ID', 'OS_TENANT_ID'))
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parser.add_argument('--os_tenant_id',
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help=argparse.SUPPRESS)
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parser.add_argument('--os_tenant_name',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-region-name',
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default=utils.env('OS_REGION_NAME'),
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help='Defaults to env[OS_REGION_NAME].')
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parser.add_argument('--os_region_name',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-auth-token',
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default=utils.env('OS_AUTH_TOKEN'),
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help='Defaults to env[OS_AUTH_TOKEN].')
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parser.add_argument('--os_auth_token',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-service-type',
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default=utils.env('OS_SERVICE_TYPE'),
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help='Defaults to env[OS_SERVICE_TYPE].')
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parser.add_argument('--os_service_type',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-endpoint-type',
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default=utils.env('OS_ENDPOINT_TYPE'),
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help='Defaults to env[OS_ENDPOINT_TYPE].')
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parser.add_argument('--os_endpoint_type',
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help=argparse.SUPPRESS)
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loading.register_session_argparse_arguments(parser)
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# Peek into argv to see if os-auth-token (or the deprecated
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# os_auth_token) or the new os-token or the environment variable
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# OS_AUTH_TOKEN were given. In which case, the token auth plugin is
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# what the user wants. Else, we'll default to password.
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default_auth_plugin = 'password'
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token_opts = ['os-token', 'os-auth-token', 'os_auth-token']
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if argv and any(i in token_opts for i in argv):
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default_auth_plugin = 'token'
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loading.register_auth_argparse_arguments(
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parser, argv, default=default_auth_plugin)
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def get_base_parser(self, argv):
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parser = argparse.ArgumentParser(
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prog='glance',
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description=__doc__.strip(),
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epilog='See "glance help COMMAND" '
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'for help on a specific command.',
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add_help=False,
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formatter_class=HelpFormatter,
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)
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# Global arguments
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parser.add_argument('-h', '--help',
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action='store_true',
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help=argparse.SUPPRESS,
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)
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parser.add_argument('--version',
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action='version',
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version=glanceclient.__version__)
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parser.add_argument('-d', '--debug',
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default=bool(utils.env('GLANCECLIENT_DEBUG')),
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action='store_true',
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help='Defaults to env[GLANCECLIENT_DEBUG].')
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parser.add_argument('-v', '--verbose',
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default=False, action="store_true",
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help="Print more verbose output.")
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parser.add_argument('--get-schema',
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default=False, action="store_true",
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dest='get_schema',
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help='Ignores cached copy and forces retrieval '
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'of schema that generates portions of the '
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'help text. Ignored with API version 1.')
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parser.add_argument('-f', '--force',
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dest='force',
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default=False, action='store_true',
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help='Prevent select actions from requesting '
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'user confirmation.')
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parser.add_argument('--os-image-url',
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default=utils.env('OS_IMAGE_URL'),
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help=('Defaults to env[OS_IMAGE_URL]. '
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'If the provided image url contains '
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'a version number and '
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'`--os-image-api-version` is omitted '
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'the version of the URL will be picked as '
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'the image api version to use.'))
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parser.add_argument('--os_image_url',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-image-api-version',
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default=utils.env('OS_IMAGE_API_VERSION',
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default=None),
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help='Defaults to env[OS_IMAGE_API_VERSION] or 2.')
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parser.add_argument('--os_image_api_version',
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help=argparse.SUPPRESS)
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parser.set_defaults(func=self.do_help)
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if osprofiler_profiler:
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parser.add_argument('--profile',
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metavar='HMAC_KEY',
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default=utils.env('OS_PROFILE'),
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help='HMAC key to use for encrypting context '
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'data for performance profiling of operation. '
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'This key should be the value of HMAC key '
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'configured in osprofiler middleware in '
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'glance, it is specified in glance '
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'configuration file at '
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'/etc/glance/glance-api.conf and '
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'/etc/glance/glance-registry.conf. Without '
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'key the profiling will not be triggered even '
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'if osprofiler is enabled on server side. '
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'Defaults to env[OS_PROFILE].')
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self._append_global_identity_args(parser, argv)
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return parser
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def get_subcommand_parser(self, version, argv=None):
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parser = self.get_base_parser(argv)
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self.subcommands = {}
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subparsers = parser.add_subparsers(metavar='<subcommand>')
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submodule = importutils.import_versioned_module('glanceclient',
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version, 'shell')
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self._find_actions(subparsers, submodule)
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self._find_actions(subparsers, self)
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self._add_bash_completion_subparser(subparsers)
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return parser
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def _find_actions(self, subparsers, actions_module):
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for attr in (a for a in dir(actions_module) if a.startswith('do_')):
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# Replace underscores with hyphens in the commands
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# displayed to the user
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command = attr[3:].replace('_', '-')
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callback = getattr(actions_module, attr)
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desc = callback.__doc__ or ''
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help = desc.strip().split('\n')[0]
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arguments = getattr(callback, 'arguments', [])
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subparser = subparsers.add_parser(command,
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help=help,
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description=desc,
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add_help=False,
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formatter_class=HelpFormatter
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)
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subparser.add_argument('-h', '--help',
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action='help',
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help=argparse.SUPPRESS,
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)
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self.subcommands[command] = subparser
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required_args = subparser.add_argument_group('Required arguments')
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for (args, kwargs) in arguments:
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if kwargs.get('required', False):
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required_args.add_argument(*args, **kwargs)
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else:
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subparser.add_argument(*args, **kwargs)
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subparser.set_defaults(func=callback)
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def _add_bash_completion_subparser(self, subparsers):
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subparser = subparsers.add_parser('bash_completion',
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add_help=False,
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formatter_class=HelpFormatter)
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self.subcommands['bash_completion'] = subparser
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subparser.set_defaults(func=self.do_bash_completion)
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def _get_image_url(self, args):
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"""Translate the available url-related options into a single string.
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Return the endpoint that should be used to talk to Glance if a
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clear decision can be made. Otherwise, return None.
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"""
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if args.os_image_url:
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return args.os_image_url
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else:
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return None
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def _discover_auth_versions(self, session, auth_url):
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# discover the API versions the server is supporting base on the
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# given URL
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v2_auth_url = None
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v3_auth_url = None
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try:
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ks_discover = discover.Discover(session=session, url=auth_url)
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v2_auth_url = ks_discover.url_for('2.0')
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v3_auth_url = ks_discover.url_for('3.0')
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except ks_exc.ClientException as e:
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# Identity service may not support discover API version.
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# Lets trying to figure out the API version from the original URL.
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url_parts = urllib.parse.urlparse(auth_url)
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(scheme, netloc, path, params, query, fragment) = url_parts
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path = path.lower()
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if path.startswith('/v3'):
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v3_auth_url = auth_url
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elif path.startswith('/v2'):
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v2_auth_url = auth_url
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else:
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# not enough information to determine the auth version
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msg = ('Unable to determine the Keystone version '
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'to authenticate with using the given '
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'auth_url. Identity service may not support API '
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'version discovery. Please provide a versioned '
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'auth_url instead. error=%s') % (e)
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raise exc.CommandError(msg)
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return (v2_auth_url, v3_auth_url)
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def _get_keystone_auth_plugin(self, ks_session, **kwargs):
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# discover the supported keystone versions using the given auth url
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auth_url = kwargs.pop('auth_url', None)
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(v2_auth_url, v3_auth_url) = self._discover_auth_versions(
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session=ks_session,
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auth_url=auth_url)
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# Determine which authentication plugin to use. First inspect the
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# auth_url to see the supported version. If both v3 and v2 are
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# supported, then use the highest version if possible.
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user_id = kwargs.pop('user_id', None)
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username = kwargs.pop('username', None)
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password = kwargs.pop('password', None)
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user_domain_name = kwargs.pop('user_domain_name', None)
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user_domain_id = kwargs.pop('user_domain_id', None)
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# project and tenant can be used interchangeably
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project_id = (kwargs.pop('project_id', None) or
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kwargs.pop('tenant_id', None))
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project_name = (kwargs.pop('project_name', None) or
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kwargs.pop('tenant_name', None))
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project_domain_id = kwargs.pop('project_domain_id', None)
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project_domain_name = kwargs.pop('project_domain_name', None)
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auth = None
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use_domain = (user_domain_id or
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user_domain_name or
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project_domain_id or
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project_domain_name)
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use_v3 = v3_auth_url and (use_domain or (not v2_auth_url))
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use_v2 = v2_auth_url and not use_domain
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if use_v3:
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auth = v3_auth.Password(
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v3_auth_url,
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user_id=user_id,
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username=username,
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password=password,
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user_domain_id=user_domain_id,
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user_domain_name=user_domain_name,
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project_id=project_id,
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project_name=project_name,
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project_domain_id=project_domain_id,
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project_domain_name=project_domain_name)
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elif use_v2:
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auth = v2_auth.Password(
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v2_auth_url,
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username,
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password,
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tenant_id=project_id,
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tenant_name=project_name)
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else:
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# if we get here it means domain information is provided
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# (caller meant to use Keystone V3) but the auth url is
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# actually Keystone V2. Obviously we can't authenticate a V3
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# user using V2.
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exc.CommandError("Credential and auth_url mismatch. The given "
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"auth_url is using Keystone V2 endpoint, which "
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"may not able to handle Keystone V3 credentials. "
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"Please provide a correct Keystone V3 auth_url.")
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return auth
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def _get_kwargs_to_create_auth_plugin(self, args):
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if not args.os_username:
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raise exc.CommandError(
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_("You must provide a username via"
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" either --os-username or "
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"env[OS_USERNAME]"))
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if not args.os_password:
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# No password, If we've got a tty, try prompting for it
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if hasattr(sys.stdin, 'isatty') and sys.stdin.isatty():
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# Check for Ctl-D
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try:
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args.os_password = getpass.getpass('OS Password: ')
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except EOFError:
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pass
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# No password because we didn't have a tty or the
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# user Ctl-D when prompted.
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if not args.os_password:
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raise exc.CommandError(
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_("You must provide a password via "
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"either --os-password, "
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"env[OS_PASSWORD], "
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"or prompted response"))
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# Validate password flow auth
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os_project_name = getattr(
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args, 'os_project_name', getattr(args, 'os_tenant_name', None))
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os_project_id = getattr(
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args, 'os_project_id', getattr(args, 'os_tenant_id', None))
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if not any([os_project_name, os_project_id]):
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# tenant is deprecated in Keystone v3. Use the latest
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# terminology instead.
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raise exc.CommandError(
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_("You must provide a project_id or project_name ("
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"with project_domain_name or project_domain_id) "
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"via "
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" --os-project-id (env[OS_PROJECT_ID])"
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" --os-project-name (env[OS_PROJECT_NAME]),"
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" --os-project-domain-id "
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"(env[OS_PROJECT_DOMAIN_ID])"
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" --os-project-domain-name "
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"(env[OS_PROJECT_DOMAIN_NAME])"))
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if not args.os_auth_url:
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raise exc.CommandError(
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_("You must provide an auth url via"
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" either --os-auth-url or "
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"via env[OS_AUTH_URL]"))
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kwargs = {
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'auth_url': args.os_auth_url,
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'username': args.os_username,
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'user_id': args.os_user_id,
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'user_domain_id': args.os_user_domain_id,
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'user_domain_name': args.os_user_domain_name,
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'password': args.os_password,
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'tenant_name': args.os_tenant_name,
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'tenant_id': args.os_tenant_id,
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'project_name': args.os_project_name,
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'project_id': args.os_project_id,
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'project_domain_name': args.os_project_domain_name,
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'project_domain_id': args.os_project_domain_id,
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}
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return kwargs
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def _get_versioned_client(self, api_version, args):
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endpoint = self._get_image_url(args)
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auth_token = args.os_auth_token
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if endpoint and auth_token:
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kwargs = {
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'token': auth_token,
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'insecure': args.insecure,
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'timeout': args.timeout,
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'cacert': args.os_cacert,
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'cert': args.os_cert,
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'key': args.os_key,
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}
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else:
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ks_session = loading.load_session_from_argparse_arguments(args)
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auth_plugin_kwargs = self._get_kwargs_to_create_auth_plugin(args)
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ks_session.auth = self._get_keystone_auth_plugin(
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ks_session=ks_session, **auth_plugin_kwargs)
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kwargs = {'session': ks_session}
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if endpoint is None:
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endpoint_type = args.os_endpoint_type or 'public'
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service_type = args.os_service_type or 'image'
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endpoint = ks_session.get_endpoint(
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service_type=service_type,
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interface=endpoint_type,
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region_name=args.os_region_name)
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return glanceclient.Client(api_version, endpoint, **kwargs)
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def _cache_schemas(self, options, client, home_dir='~/.glanceclient'):
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homedir = os.path.expanduser(home_dir)
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path_prefix = homedir
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if options.os_auth_url:
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hash_host = hashlib.sha1(options.os_auth_url.encode('utf-8'))
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path_prefix = os.path.join(path_prefix, hash_host.hexdigest())
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if not os.path.exists(path_prefix):
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try:
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os.makedirs(path_prefix)
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except OSError as e:
|
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# This avoids glanceclient to crash if it can't write to
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# ~/.glanceclient, which may happen on some env (for me,
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# it happens in Jenkins, as glanceclient can't write to
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# /var/lib/jenkins).
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msg = '%s' % e
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print(encodeutils.safe_decode(msg), file=sys.stderr)
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resources = ['image', 'metadefs/namespace', 'metadefs/resource_type']
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schema_file_paths = [os.path.join(path_prefix, x + '_schema.json')
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for x in ['image', 'namespace', 'resource_type']]
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failed_download_schema = 0
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for resource, schema_file_path in zip(resources, schema_file_paths):
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if (not os.path.exists(schema_file_path)) or options.get_schema:
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try:
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schema = client.schemas.get(resource)
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with open(schema_file_path, 'w') as f:
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f.write(json.dumps(schema.raw()))
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except exc.Unauthorized:
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raise exc.CommandError(
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"Invalid OpenStack Identity credentials.")
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except Exception:
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# NOTE(esheffield) do nothing here, we'll get a message
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# later if the schema is missing
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failed_download_schema += 1
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pass
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return failed_download_schema >= len(resources)
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|
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def main(self, argv):
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def _get_subparser(api_version):
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try:
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return self.get_subcommand_parser(api_version, argv)
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except ImportError as e:
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if not str(e):
|
|
# Add a generic import error message if the raised
|
|
# ImportError has none.
|
|
raise ImportError('Unable to import module. Re-run '
|
|
'with --debug for more info.')
|
|
raise
|
|
|
|
# Parse args once to find version
|
|
|
|
# NOTE(flepied) Under Python3, parsed arguments are removed
|
|
# from the list so make a copy for the first parsing
|
|
base_argv = copy.deepcopy(argv)
|
|
parser = self.get_base_parser(argv)
|
|
(options, args) = parser.parse_known_args(base_argv)
|
|
|
|
try:
|
|
# NOTE(flaper87): Try to get the version from the
|
|
# image-url first. If no version was specified, fallback
|
|
# to the api-image-version arg. If both of these fail then
|
|
# fallback to the minimum supported one and let keystone
|
|
# do the magic.
|
|
endpoint = self._get_image_url(options)
|
|
endpoint, url_version = utils.strip_version(endpoint)
|
|
except ValueError:
|
|
# NOTE(flaper87): ValueError is raised if no endpoint is provided
|
|
url_version = None
|
|
|
|
# build available subcommands based on version
|
|
try:
|
|
api_version = int(options.os_image_api_version or url_version or 2)
|
|
if api_version not in SUPPORTED_VERSIONS:
|
|
raise ValueError
|
|
except ValueError:
|
|
msg = ("Invalid API version parameter. "
|
|
"Supported values are %s" % SUPPORTED_VERSIONS)
|
|
utils.exit(msg=msg)
|
|
|
|
# Handle top-level --help/-h before attempting to parse
|
|
# a command off the command line
|
|
if options.help or not argv:
|
|
parser = _get_subparser(api_version)
|
|
self.do_help(options, parser=parser)
|
|
return 0
|
|
|
|
# short-circuit and deal with help command right away.
|
|
sub_parser = _get_subparser(api_version)
|
|
args = sub_parser.parse_args(argv)
|
|
|
|
if args.func == self.do_help:
|
|
self.do_help(args, parser=sub_parser)
|
|
return 0
|
|
elif args.func == self.do_bash_completion:
|
|
self.do_bash_completion(args)
|
|
return 0
|
|
|
|
if not options.os_image_api_version and api_version == 2:
|
|
switch_version = True
|
|
client = self._get_versioned_client('2', args)
|
|
|
|
resp, body = client.http_client.get('/versions')
|
|
|
|
for version in body['versions']:
|
|
if version['id'].startswith('v2'):
|
|
# NOTE(flaper87): We know v2 is enabled in the server,
|
|
# which means we should be able to get the schemas and
|
|
# move on.
|
|
switch_version = self._cache_schemas(options, client)
|
|
break
|
|
|
|
if switch_version:
|
|
print('WARNING: The client is falling back to v1 because'
|
|
' the accessing to v2 failed. This behavior will'
|
|
' be removed in future versions', file=sys.stderr)
|
|
api_version = 1
|
|
|
|
sub_parser = _get_subparser(api_version)
|
|
|
|
# Parse args again and call whatever callback was selected
|
|
args = sub_parser.parse_args(argv)
|
|
|
|
# NOTE(flaper87): Make sure we re-use the password input if we
|
|
# have one. This may happen if the schemas were downloaded in
|
|
# this same command. Password will be asked to download the
|
|
# schemas and then for the operations below.
|
|
if not args.os_password and options.os_password:
|
|
args.os_password = options.os_password
|
|
|
|
if args.debug:
|
|
# Set up the root logger to debug so that the submodules can
|
|
# print debug messages
|
|
logging.basicConfig(level=logging.DEBUG)
|
|
# for iso8601 < 0.1.11
|
|
logging.getLogger('iso8601').setLevel(logging.WARNING)
|
|
LOG = logging.getLogger('glanceclient')
|
|
LOG.addHandler(logging.StreamHandler())
|
|
LOG.setLevel(logging.DEBUG if args.debug else logging.INFO)
|
|
|
|
profile = osprofiler_profiler and options.profile
|
|
if profile:
|
|
osprofiler_profiler.init(options.profile)
|
|
|
|
client = self._get_versioned_client(api_version, args)
|
|
|
|
try:
|
|
args.func(client, args)
|
|
except exc.Unauthorized:
|
|
raise exc.CommandError("Invalid OpenStack Identity credentials.")
|
|
finally:
|
|
if profile:
|
|
trace_id = osprofiler_profiler.get().get_base_id()
|
|
print("Profiling trace ID: %s" % trace_id)
|
|
print("To display trace use next command:\n"
|
|
"osprofiler trace show --html %s " % trace_id)
|
|
|
|
@utils.arg('command', metavar='<subcommand>', nargs='?',
|
|
help='Display help for <subcommand>.')
|
|
def do_help(self, args, parser):
|
|
"""Display help about this program or one of its subcommands."""
|
|
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:
|
|
parser.print_help()
|
|
|
|
if not args.os_image_api_version or args.os_image_api_version == '2':
|
|
# NOTE(NiallBunting) This currently assumes that the only versions
|
|
# are one and two.
|
|
try:
|
|
if command is None:
|
|
print("\nRun `glance --os-image-api-version 1 help`"
|
|
" for v1 help")
|
|
else:
|
|
self.get_subcommand_parser(1)
|
|
if command in self.subcommands:
|
|
command = ' ' + command
|
|
print(("\nRun `glance --os-image-api-version 1 help%s`"
|
|
" for v1 help") % (command or ''))
|
|
except ImportError:
|
|
pass
|
|
|
|
def do_bash_completion(self, _args):
|
|
"""Prints arguments for bash_completion.
|
|
|
|
Prints all of the commands and options to stdout so that the
|
|
glance.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))
|
|
|
|
|
|
class HelpFormatter(argparse.HelpFormatter):
|
|
def start_section(self, heading):
|
|
# Title-case the headings
|
|
heading = '%s%s' % (heading[0].upper(), heading[1:])
|
|
super(HelpFormatter, self).start_section(heading)
|
|
|
|
|
|
def main():
|
|
try:
|
|
argv = [encodeutils.safe_decode(a) for a in sys.argv[1:]]
|
|
OpenStackImagesShell().main(argv)
|
|
except KeyboardInterrupt:
|
|
utils.exit('... terminating glance client', exit_code=130)
|
|
except Exception as e:
|
|
if utils.debug_enabled(argv) is True:
|
|
traceback.print_exc()
|
|
utils.exit(encodeutils.exception_to_unicode(e))
|