8ba74451ee
* Promote select messages to INFO so lower logging levels can be useful * Help more modules not say so much all the time Change-Id: I814023c1489595998ae74efe40ef439b3522ee74
352 lines
12 KiB
Python
352 lines
12 KiB
Python
# Copyright 2012-2013 OpenStack Foundation
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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 APIs"""
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import getpass
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import logging
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import sys
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import traceback
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from cliff import app
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from cliff import command
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from cliff import complete
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from cliff import help
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import openstackclient
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from openstackclient.common import clientmanager
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from openstackclient.common import commandmanager
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from openstackclient.common import exceptions as exc
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from openstackclient.common import timing
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from openstackclient.common import utils
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DEFAULT_DOMAIN = 'default'
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def prompt_for_password(prompt=None):
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"""Prompt user for a password
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Propmpt for a password if stdin is a tty.
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"""
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if not prompt:
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prompt = 'Password: '
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pw = None
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# If stdin is a tty, try prompting for the password
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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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pw = getpass.getpass(prompt)
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except EOFError:
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pass
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# No password because we did't have a tty or nothing was entered
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if not pw:
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raise exc.CommandError(
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"No password entered, or found via --os-password or OS_PASSWORD",
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)
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return pw
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class OpenStackShell(app.App):
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CONSOLE_MESSAGE_FORMAT = '%(levelname)s: %(name)s %(message)s'
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log = logging.getLogger(__name__)
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timing_data = []
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def __init__(self):
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# Patch command.Command to add a default auth_required = True
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command.Command.auth_required = True
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command.Command.best_effort = False
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# But not help
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help.HelpCommand.auth_required = False
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complete.CompleteCommand.best_effort = True
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super(OpenStackShell, self).__init__(
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description=__doc__.strip(),
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version=openstackclient.__version__,
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command_manager=commandmanager.CommandManager('openstack.cli'))
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self.api_version = {}
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# Until we have command line arguments parsed, dump any stack traces
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self.dump_stack_trace = True
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# This is instantiated in initialize_app() only when using
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# password flow auth
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self.auth_client = None
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# Assume TLS host certificate verification is enabled
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self.verify = True
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self.client_manager = None
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# NOTE(dtroyer): This hack changes the help action that Cliff
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# automatically adds to the parser so we can defer
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# its execution until after the api-versioned commands
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# have been loaded. There doesn't seem to be a
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# way to edit/remove anything from an existing parser.
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# Replace the cliff-added help.HelpAction to defer its execution
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self.DeferredHelpAction = None
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for a in self.parser._actions:
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if type(a) == help.HelpAction:
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# Found it, save and replace it
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self.DeferredHelpAction = a
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# These steps are argparse-implementation-dependent
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self.parser._actions.remove(a)
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if self.parser._option_string_actions['-h']:
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del self.parser._option_string_actions['-h']
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if self.parser._option_string_actions['--help']:
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del self.parser._option_string_actions['--help']
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# Make a new help option to just set a flag
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self.parser.add_argument(
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'-h', '--help',
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action='store_true',
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dest='deferred_help',
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default=False,
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help="Show this help message and exit",
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)
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def configure_logging(self):
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"""Configure logging for the app
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Cliff sets some defaults we don't want so re-work it a bit
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"""
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if self.options.debug:
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# --debug forces verbose_level 3
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# Set this here so cliff.app.configure_logging() can work
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self.options.verbose_level = 3
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super(OpenStackShell, self).configure_logging()
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root_logger = logging.getLogger('')
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# Set logging to the requested level
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if self.options.verbose_level == 0:
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# --quiet
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root_logger.setLevel(logging.ERROR)
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elif self.options.verbose_level == 1:
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# This is the default case, no --debug, --verbose or --quiet
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root_logger.setLevel(logging.WARNING)
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elif self.options.verbose_level == 2:
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# One --verbose
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root_logger.setLevel(logging.INFO)
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elif self.options.verbose_level >= 3:
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# Two or more --verbose
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root_logger.setLevel(logging.DEBUG)
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# Requests logs some stuff at INFO that we don't want
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# unless we have DEBUG
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requests_log = logging.getLogger("requests")
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# Other modules we don't want DEBUG output for
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cliff_log = logging.getLogger('cliff')
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stevedore_log = logging.getLogger('stevedore')
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iso8601_log = logging.getLogger("iso8601")
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if self.options.debug:
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# --debug forces traceback
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self.dump_stack_trace = True
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requests_log.setLevel(logging.DEBUG)
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cliff_log.setLevel(logging.DEBUG)
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else:
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self.dump_stack_trace = False
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requests_log.setLevel(logging.ERROR)
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cliff_log.setLevel(logging.ERROR)
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stevedore_log.setLevel(logging.ERROR)
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iso8601_log.setLevel(logging.ERROR)
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def run(self, argv):
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try:
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return super(OpenStackShell, self).run(argv)
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except Exception as e:
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if not logging.getLogger('').handlers:
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logging.basicConfig()
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if self.dump_stack_trace:
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self.log.error(traceback.format_exc(e))
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else:
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self.log.error('Exception raised: ' + str(e))
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return 1
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def build_option_parser(self, description, version):
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parser = super(OpenStackShell, self).build_option_parser(
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description,
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version)
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# service token auth argument
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parser.add_argument(
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'--os-url',
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metavar='<url>',
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default=utils.env('OS_URL'),
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help='Defaults to env[OS_URL]')
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# Global arguments
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parser.add_argument(
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'--os-region-name',
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metavar='<auth-region-name>',
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default=utils.env('OS_REGION_NAME'),
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help='Authentication region name (Env: OS_REGION_NAME)')
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parser.add_argument(
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'--os-cacert',
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metavar='<ca-bundle-file>',
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default=utils.env('OS_CACERT'),
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help='CA certificate bundle file (Env: OS_CACERT)')
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verify_group = parser.add_mutually_exclusive_group()
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verify_group.add_argument(
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'--verify',
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action='store_true',
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help='Verify server certificate (default)',
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)
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verify_group.add_argument(
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'--insecure',
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action='store_true',
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help='Disable server certificate verification',
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)
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parser.add_argument(
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'--os-default-domain',
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metavar='<auth-domain>',
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default=utils.env(
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'OS_DEFAULT_DOMAIN',
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default=DEFAULT_DOMAIN),
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help='Default domain ID, default=' +
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DEFAULT_DOMAIN +
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' (Env: OS_DEFAULT_DOMAIN)')
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parser.add_argument(
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'--timing',
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default=False,
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action='store_true',
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help="Print API call timing info",
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)
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return clientmanager.build_plugin_option_parser(parser)
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def initialize_app(self, argv):
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"""Global app init bits:
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* set up API versions
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* validate authentication info
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* authenticate against Identity if requested
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"""
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super(OpenStackShell, self).initialize_app(argv)
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# Save default domain
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self.default_domain = self.options.os_default_domain
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# Loop through extensions to get API versions
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for mod in clientmanager.PLUGIN_MODULES:
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version_opt = getattr(self.options, mod.API_VERSION_OPTION, None)
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if version_opt:
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api = mod.API_NAME
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self.api_version[api] = version_opt
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version = '.v' + version_opt.replace('.', '_')
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cmd_group = 'openstack.' + api.replace('-', '_') + version
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self.command_manager.add_command_group(cmd_group)
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self.log.debug(
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'%(name)s API version %(version)s, cmd group %(group)s',
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{'name': api, 'version': version_opt, 'group': cmd_group}
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)
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# Commands that span multiple APIs
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self.command_manager.add_command_group(
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'openstack.common')
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# This is the naive extension implementation referred to in
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# blueprint 'client-extensions'
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# Extension modules can register their commands in an
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# 'openstack.extension' entry point group:
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# entry_points={
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# 'openstack.extension': [
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# 'list_repo=qaz.github.repo:ListRepo',
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# 'show_repo=qaz.github.repo:ShowRepo',
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# ],
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# }
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self.command_manager.add_command_group(
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'openstack.extension')
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# call InitializeXxx() here
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# set up additional clients to stuff in to client_manager??
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# Handle deferred help and exit
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if self.options.deferred_help:
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self.DeferredHelpAction(self.parser, self.parser, None, None)
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# Set up common client session
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if self.options.os_cacert:
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self.verify = self.options.os_cacert
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else:
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self.verify = not self.options.insecure
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self.client_manager = clientmanager.ClientManager(
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auth_options=self.options,
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verify=self.verify,
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api_version=self.api_version,
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pw_func=prompt_for_password,
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)
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def prepare_to_run_command(self, cmd):
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"""Set up auth and API versions"""
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self.log.info(
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'command: %s.%s',
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cmd.__class__.__module__,
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cmd.__class__.__name__,
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)
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if cmd.auth_required and cmd.best_effort:
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try:
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# Trigger the Identity client to initialize
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self.client_manager.auth_ref
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except Exception:
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pass
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return
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def clean_up(self, cmd, result, err):
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self.log.debug('clean_up %s', cmd.__class__.__name__)
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if err:
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self.log.debug('got an error: %s', err)
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# Process collected timing data
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if self.options.timing:
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# Loop through extensions
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for mod in self.ext_modules:
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client = getattr(self.client_manager, mod.API_NAME)
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if hasattr(client, 'get_timings'):
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self.timing_data.extend(client.get_timings())
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# Use the Timing pseudo-command to generate the output
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tcmd = timing.Timing(self, self.options)
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tparser = tcmd.get_parser('Timing')
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# If anything other than prettytable is specified, force csv
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format = 'table'
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# Check the formatter used in the actual command
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if hasattr(cmd, 'formatter') \
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and cmd.formatter != cmd._formatter_plugins['table'].obj:
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format = 'csv'
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sys.stdout.write('\n')
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targs = tparser.parse_args(['-f', format])
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tcmd.run(targs)
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def main(argv=sys.argv[1:]):
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return OpenStackShell().run(argv)
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if __name__ == "__main__":
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sys.exit(main(sys.argv[1:]))
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