346 lines
13 KiB
Python
346 lines
13 KiB
Python
# 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 Telemetry 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 logging
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import sys
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import six
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import ceilometerclient
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from ceilometerclient import client as ceiloclient
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from ceilometerclient.common import utils
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from ceilometerclient import exc
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from ceilometerclient.openstack.common import cliutils
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from ceilometerclient.openstack.common import strutils
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class CeilometerShell(object):
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def get_base_parser(self):
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parser = argparse.ArgumentParser(
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prog='ceilometer',
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description=__doc__.strip(),
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epilog='See "ceilometer 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=ceilometerclient.__version__)
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parser.add_argument('-d', '--debug',
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default=bool(cliutils.env('CEILOMETERCLIENT_DEBUG')
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),
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action='store_true',
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help='Defaults to env[CEILOMETERCLIENT_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('-k', '--insecure',
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default=False,
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action='store_true',
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help="Explicitly allow ceilometerclient to "
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"perform \"insecure\" SSL (https) requests. "
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"The server's certificate will "
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"not be verified against any certificate "
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"authorities. This option should be used with "
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"caution.")
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parser.add_argument('--cert-file',
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help='Path of certificate file to use in SSL '
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'connection. This file can optionally be prepended'
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' with the private key.')
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parser.add_argument('--key-file',
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help='Path of client key to use in SSL connection.'
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' This option is not necessary if your key is '
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'prepended to your cert file.')
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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=cliutils.env('OS_CACERT'),
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help='Path of CA TLS certificate(s) used to verify'
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'the remote server\'s certificate. Without this '
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'option ceilometer looks for the default system '
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'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('--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=cliutils.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=cliutils.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=cliutils.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=cliutils.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=cliutils.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=cliutils.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=cliutils.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('--ceilometer-url',
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default=cliutils.env('CEILOMETER_URL'),
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help='Defaults to env[CEILOMETER_URL]')
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parser.add_argument('--ceilometer_url',
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help=argparse.SUPPRESS)
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parser.add_argument('--ceilometer-api-version',
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default=cliutils.env(
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'CEILOMETER_API_VERSION', default='2'),
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help='Defaults to env[CEILOMETER_API_VERSION] '
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'or 2')
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parser.add_argument('--ceilometer_api_version',
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help=argparse.SUPPRESS)
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parser.add_argument('--os-service-type',
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default=cliutils.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=cliutils.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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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 _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 _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, 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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subparser.add_argument('-h', '--help', action='help',
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help=argparse.SUPPRESS)
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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 _setup_logging(self, debug):
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format = '%(levelname)s (%(module)s:%(lineno)d) %(message)s'
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if debug:
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logging.basicConfig(format=format, level=logging.DEBUG)
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else:
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logging.basicConfig(format=format, level=logging.WARN)
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def parse_args(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_logging(options.debug)
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# build available subcommands based on version
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api_version = options.ceilometer_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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# Return parsed args
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return api_version, subcommand_parser.parse_args(argv)
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def main(self, argv):
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parsed = self.parse_args(argv)
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if parsed == 0:
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return 0
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api_version, args = parsed
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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.ceilometer_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_tenant_id or args.os_tenant_name):
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raise exc.CommandError("You must provide a tenant_id via "
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"either --os-tenant-id or via "
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"env[OS_TENANT_ID]")
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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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client = ceiloclient.get_client(api_version, **(args.__dict__))
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# call whatever callback was selected
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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 OpenStack 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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The ceilometer.bash_completion script doesn't have to hard code them.
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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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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(args=None):
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try:
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if args is None:
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args = sys.argv[1:]
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CeilometerShell().main(args)
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except Exception as e:
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if '--debug' in args or '-d' in args:
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raise
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else:
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print(strutils.safe_encode(six.text_type(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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