348 lines
13 KiB
Python
348 lines
13 KiB
Python
#
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# Copyright (c) 2018-2022 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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"""
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Command-line interface for Fault Management
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"""
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from __future__ import print_function
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import argparse
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import httplib2
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import logging
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import os
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import sys
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from oslo_utils import importutils
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import fmclient
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from fmclient.common import utils
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from fmclient import exc
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from fmclient import client
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def env(*args, **kwargs):
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"""Returns the first environment variable set.
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If all are empty, defaults to '' or keyword arg `default`.
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"""
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for arg in args:
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value = os.environ.get(arg)
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if value:
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return value
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return kwargs.get('default', '')
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class FmShell(object):
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def get_base_parser(self):
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parser = argparse.ArgumentParser(
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prog='fm',
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description=__doc__.strip(),
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epilog='See "fm 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=fmclient.__version__)
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parser.add_argument('--debug',
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default=bool(utils.env('FMCLIENT_DEBUG')),
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action='store_true',
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help='Defaults to env[FMCLIENT_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('--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('--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-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('--fm-url',
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default=utils.env('FM_URL'),
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help='Defaults to env[FM_URL]')
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parser.add_argument('--fm_url',
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help=argparse.SUPPRESS)
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parser.add_argument('--fm-api-version',
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default=utils.env('FM_API_VERSION', default='1'),
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help='Defaults to env[FM_API_VERSION] '
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'or 1')
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parser.add_argument('--fm_api_version',
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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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default=client.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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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('--insecure',
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action='store_true',
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dest='insecure',
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default=env('FMCLIENT_INSECURE', default=False),
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help='Disables SSL/TLS certificate verification '
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'(Env: FMCLIENT_INSECURE)')
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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 = importutils.import_versioned_module('fmclient',
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version, 'shell')
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submodule.enhance_parser(parser, subparsers, self.subcommands)
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utils.define_commands_from_module(subparsers, self, self.subcommands)
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self._add_bash_completion_subparser(subparsers)
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return parser
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def _add_bash_completion_subparser(self, subparsers):
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subparser = subparsers.add_parser(
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'bash_completion',
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add_help=False,
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formatter_class=HelpFormatter
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)
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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 _setup_debugging(self, debug):
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if debug:
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logging.basicConfig(
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format="%(levelname)s (%(module)s:%(lineno)d) %(message)s",
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level=logging.DEBUG)
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httplib2.debuglevel = 1
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else:
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logging.basicConfig(format="%(levelname)s %(message)s",
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level=logging.CRITICAL)
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def main(self, argv):
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# Parse args once to find version
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parser = self.get_base_parser()
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(options, args) = parser.parse_known_args(argv)
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self._setup_debugging(options.debug)
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# build available subcommands based on version
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api_version = options.fm_api_version
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subcommand_parser = self.get_subcommand_parser(api_version)
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self.parser = subcommand_parser
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# Handle top-level --help/-h before attempting to parse
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# a command off the command line
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if options.help or not argv:
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self.do_help(options)
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return 0
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# Parse args again and call whatever callback was selected
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args = subcommand_parser.parse_args(argv)
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# Short-circuit and deal with help command right away.
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if args.func == self.do_help:
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self.do_help(args)
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return 0
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elif args.func == self.do_bash_completion:
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self.do_bash_completion(args)
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return 0
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if not (args.os_auth_token and args.fm_url):
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if not args.os_username:
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raise exc.CommandError("You must provide a username via "
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"either --os-username or via "
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"env[OS_USERNAME]")
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if not args.os_password:
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raise exc.CommandError("You must provide a password via "
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"either --os-password or via "
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"env[OS_PASSWORD]")
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if not (args.os_project_id or args.os_project_name):
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raise exc.CommandError("You must provide a project name via "
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"either --os-project-name or via "
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"env[OS_PROJECT_NAME]")
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if not args.os_auth_url:
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raise exc.CommandError("You must provide an auth url via "
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"either --os-auth-url or via "
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"env[OS_AUTH_URL]")
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if not args.os_region_name:
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raise exc.CommandError("You must provide an region name via "
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"either --os-region-name or via "
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"env[OS_REGION_NAME]")
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client_args = (
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'os_auth_token', 'fm_url', 'os_username', 'os_password',
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'os_auth_url', 'os_project_id', 'os_project_name', 'os_tenant_id',
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'os_tenant_name', 'os_region_name', 'os_user_domain_id',
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'os_user_domain_name', 'os_project_domain_id',
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'os_project_domain_name', 'os_service_type', 'os_endpoint_type',
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'timeout', 'insecure'
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)
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kwargs = {}
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for key in client_args:
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client_key = key.replace("os_", "", 1)
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kwargs[client_key] = getattr(args, key)
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client = fmclient.client.get_client(api_version, **kwargs)
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try:
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args.func(client, args)
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except exc.Unauthorized:
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raise exc.CommandError("Invalid Identity credentials.")
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def do_bash_completion(self, args):
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"""Prints all of the commands and options to stdout.
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"""
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commands = set()
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options = set()
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for sc_str, sc in self.subcommands.items():
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commands.add(sc_str)
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for option in list(sc._optionals._option_string_actions):
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options.add(option)
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commands.remove('bash_completion')
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print(' '.join(commands | options))
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@utils.arg('command', metavar='<subcommand>', nargs='?',
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help='Display help for <subcommand>')
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def do_help(self, args):
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"""Display help about this program or one of its subcommands."""
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if getattr(args, 'command', None):
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if args.command in self.subcommands:
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self.subcommands[args.command].print_help()
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else:
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raise exc.CommandError("'%s' is not a valid subcommand" %
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args.command)
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else:
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self.parser.print_help()
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class HelpFormatter(argparse.HelpFormatter):
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def start_section(self, heading):
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# Title-case the headings
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heading = '%s%s' % (heading[0].upper(), heading[1:])
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super(HelpFormatter, self).start_section(heading)
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def main():
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try:
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FmShell().main(sys.argv[1:])
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except KeyboardInterrupt as e:
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print('caught: %r, aborting' % (e), file=sys.stderr)
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sys.exit(0)
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except IOError:
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sys.exit(0)
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except Exception as e:
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print(e, file=sys.stderr)
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sys.exit(1)
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if __name__ == "__main__":
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main()
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