653 lines
27 KiB
Python
653 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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from __future__ import print_function
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import argparse
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import copy
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import json
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import logging
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import os
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from os.path import expanduser
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import sys
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import six.moves.urllib.parse as urlparse
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import glanceclient
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from glanceclient.common import utils
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from glanceclient import exc
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from glanceclient.openstack.common import importutils
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from glanceclient.openstack.common import strutils
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from keystoneclient.auth.identity import v2 as v2_auth
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from keystoneclient.auth.identity import v3 as v3_auth
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from keystoneclient import discover
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from keystoneclient.openstack.common.apiclient import exceptions as ks_exc
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from keystoneclient import session
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osprofiler_profiler = importutils.try_import("osprofiler.profiler")
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class OpenStackImagesShell(object):
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def _append_global_identity_args(self, parser):
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# FIXME(bobt): these are global identity (Keystone) arguments which
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# should be consistent and shared by all service clients. Therefore,
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# they should be provided by python-keystoneclient. We will need to
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# refactor this code once this functionality is avaible in
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# python-keystoneclient. See
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#
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# https://bugs.launchpad.net/python-keystoneclient/+bug/1332337
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#
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parser.add_argument('-k', '--insecure',
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default=False,
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action='store_true',
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help='Explicitly allow glanceclient to perform '
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'\"insecure SSL\" (https) requests. The server\'s '
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'certificate will not be verified against any '
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'certificate authorities. This option should '
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'be used with caution.')
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parser.add_argument('--os-cert',
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help='Path of certificate file to use in SSL '
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'connection. This file can optionally be '
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'prepended with the private key.')
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parser.add_argument('--cert-file',
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dest='os_cert',
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help='DEPRECATED! Use --os-cert.')
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parser.add_argument('--os-key',
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help='Path of client key to use in SSL '
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'connection. This option is not necessary '
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'if your key is prepended to your cert file.')
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parser.add_argument('--key-file',
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dest='os_key',
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help='DEPRECATED! Use --os-key.')
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parser.add_argument('--os-cacert',
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metavar='<ca-certificate-file>',
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dest='os_cacert',
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default=utils.env('OS_CACERT'),
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help='Path of CA TLS certificate(s) used to '
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'verify the remote server\'s certificate. '
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'Without this option glance looks for the '
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'default system CA certificates.')
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parser.add_argument('--ca-file',
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dest='os_cacert',
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help='DEPRECATED! Use --os-cacert.')
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parser.add_argument('--os-username',
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default=utils.env('OS_USERNAME'),
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help='Defaults to env[OS_USERNAME].')
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parser.add_argument('--os_username',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-user-id',
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default=utils.env('OS_USER_ID'),
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help='Defaults to env[OS_USER_ID].')
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parser.add_argument('--os-user-domain-id',
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default=utils.env('OS_USER_DOMAIN_ID'),
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help='Defaults to env[OS_USER_DOMAIN_ID].')
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parser.add_argument('--os-user-domain-name',
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default=utils.env('OS_USER_DOMAIN_NAME'),
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help='Defaults to env[OS_USER_DOMAIN_NAME].')
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parser.add_argument('--os-project-id',
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default=utils.env('OS_PROJECT_ID'),
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help='Another way to specify tenant ID. '
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'This option is mutually exclusive with '
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' --os-tenant-id. '
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'Defaults to env[OS_PROJECT_ID].')
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parser.add_argument('--os-project-name',
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default=utils.env('OS_PROJECT_NAME'),
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help='Another way to specify tenant name. '
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'This option is mutually exclusive with '
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' --os-tenant-name. '
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'Defaults to env[OS_PROJECT_NAME].')
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parser.add_argument('--os-project-domain-id',
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default=utils.env('OS_PROJECT_DOMAIN_ID'),
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help='Defaults to env[OS_PROJECT_DOMAIN_ID].')
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parser.add_argument('--os-project-domain-name',
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default=utils.env('OS_PROJECT_DOMAIN_NAME'),
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help='Defaults to env[OS_PROJECT_DOMAIN_NAME].')
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parser.add_argument('--os-password',
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default=utils.env('OS_PASSWORD'),
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help='Defaults to env[OS_PASSWORD].')
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parser.add_argument('--os_password',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-tenant-id',
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default=utils.env('OS_TENANT_ID'),
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help='Defaults to env[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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default=utils.env('OS_TENANT_NAME'),
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help='Defaults to env[OS_TENANT_NAME].')
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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-auth-url',
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default=utils.env('OS_AUTH_URL'),
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help='Defaults to env[OS_AUTH_URL].')
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parser.add_argument('--os_auth_url',
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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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def get_base_parser(self):
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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('--timeout',
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default=600,
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help='Number of seconds to wait for a response')
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parser.add_argument('--no-ssl-compression',
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dest='ssl_compression',
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default=True, action='store_false',
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help='Disable SSL compression when using https.')
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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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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='1'),
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help='Defaults to env[OS_IMAGE_API_VERSION] or 1.')
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parser.add_argument('--os_image_api_version',
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help=argparse.SUPPRESS)
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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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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 paste '
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'configuration file at '
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'/etc/glance/api-paste.ini and '
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'/etc/glance/registry-paste.ini. Without key '
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'the profiling will not be triggered even '
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'if osprofiler is enabled on server side.')
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# FIXME(bobt): this method should come from python-keystoneclient
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self._append_global_identity_args(parser)
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return parser
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def get_subcommand_parser(self, version):
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parser = self.get_base_parser()
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self.subcommands = {}
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subparsers = parser.add_subparsers(metavar='<subcommand>')
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submodule = utils.import_versioned_module(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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# I prefer to be hypen-separated instead of underscores.
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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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for (args, kwargs) in arguments:
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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, auth_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 = urlparse.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_session(self, **kwargs):
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ks_session = session.Session.construct(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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ks_session.auth = auth
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return ks_session
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def _get_endpoint_and_token(self, args, force_auth=False):
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image_url = self._get_image_url(args)
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auth_token = args.os_auth_token
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auth_reqd = force_auth or (utils.is_authentication_required(args.func)
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and not (auth_token and image_url))
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if not auth_reqd:
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endpoint = image_url
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token = args.os_auth_token
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else:
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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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raise exc.CommandError(
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_("You must provide a password via"
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" either --os-password or "
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"env[OS_PASSWORD]"))
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# Validate password flow auth
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project_info = (args.os_tenant_name or
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args.os_tenant_id or
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(args.os_project_name and
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(args.project_domain_name or
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args.project_domain_id)) or
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args.os_project_id)
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if (not project_info):
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# tenent 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,
|
|
'insecure': args.insecure,
|
|
'cacert': args.os_cacert,
|
|
'cert': args.os_cert,
|
|
'key': args.os_key
|
|
}
|
|
ks_session = self._get_keystone_session(**kwargs)
|
|
token = args.os_auth_token or ks_session.get_token()
|
|
|
|
endpoint_type = args.os_endpoint_type or 'public'
|
|
service_type = args.os_service_type or 'image'
|
|
endpoint = args.os_image_url or ks_session.get_endpoint(
|
|
service_type=service_type,
|
|
endpoint_type=endpoint_type,
|
|
region_name=args.os_region_name)
|
|
|
|
return endpoint, token
|
|
|
|
def _get_versioned_client(self, api_version, args, force_auth=False):
|
|
endpoint, token = self._get_endpoint_and_token(args,
|
|
force_auth=force_auth)
|
|
|
|
kwargs = {
|
|
'token': token,
|
|
'insecure': args.insecure,
|
|
'timeout': args.timeout,
|
|
'cacert': args.os_cacert,
|
|
'cert': args.os_cert,
|
|
'key': args.os_key,
|
|
'ssl_compression': args.ssl_compression
|
|
}
|
|
client = glanceclient.Client(api_version, endpoint, **kwargs)
|
|
return client
|
|
|
|
def _cache_schema(self, options, home_dir='~/.glanceclient'):
|
|
homedir = expanduser(home_dir)
|
|
if not os.path.exists(homedir):
|
|
os.makedirs(homedir)
|
|
|
|
schema_file_path = homedir + os.sep + "image_schema.json"
|
|
|
|
if (not os.path.exists(schema_file_path)) or options.get_schema:
|
|
try:
|
|
client = self._get_versioned_client('2', options,
|
|
force_auth=True)
|
|
schema = client.schemas.get("image")
|
|
|
|
with open(schema_file_path, 'w') as f:
|
|
f.write(json.dumps(schema.raw()))
|
|
except Exception:
|
|
#NOTE(esheffield) do nothing here, we'll get a message later
|
|
#if the schema is missing
|
|
pass
|
|
|
|
def main(self, argv):
|
|
# 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()
|
|
(options, args) = parser.parse_known_args(base_argv)
|
|
|
|
# build available subcommands based on version
|
|
api_version = options.os_image_api_version
|
|
|
|
if api_version == '2':
|
|
self._cache_schema(options)
|
|
|
|
subcommand_parser = self.get_subcommand_parser(api_version)
|
|
self.parser = subcommand_parser
|
|
|
|
# Handle top-level --help/-h before attempting to parse
|
|
# a command off the command line
|
|
if options.help or not argv:
|
|
self.do_help(options)
|
|
return 0
|
|
|
|
# Parse args again and call whatever callback was selected
|
|
args = subcommand_parser.parse_args(argv)
|
|
|
|
# Short-circuit and deal with help command 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
|
|
|
|
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,
|
|
force_auth=False)
|
|
|
|
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):
|
|
"""
|
|
Display help about this program or one of its subcommands.
|
|
"""
|
|
if getattr(args, 'command', None):
|
|
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 do_bash_completion(self, _args):
|
|
"""
|
|
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:
|
|
OpenStackImagesShell().main(map(strutils.safe_decode, sys.argv[1:]))
|
|
except KeyboardInterrupt:
|
|
print('... terminating glance client', file=sys.stderr)
|
|
sys.exit(1)
|
|
except Exception as e:
|
|
print(utils.exception_to_str(e), file=sys.stderr)
|
|
sys.exit(1)
|