various improvements
This commit is contained in:
@ -1,3 +1,18 @@
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# This file is part of Compute
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#
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# Compute is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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"""Command line interface."""
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import argparse
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@ -15,10 +30,7 @@ import yaml
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from pydantic import ValidationError
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from compute import __version__
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from compute.exceptions import (
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ComputeServiceError,
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GuestAgentTimeoutExceededError,
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)
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from compute.exceptions import ComputeError, GuestAgentTimeoutExceededError
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from compute.instance import GuestAgent
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from compute.session import Session
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from compute.utils import ids
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@ -198,10 +210,23 @@ def _create_instance(session: Session, file: io.TextIOWrapper) -> None:
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sys.exit()
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def _shutdown_instance(session: Session, args: argparse.Namespace) -> None:
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instance = session.get_instance(args.instance)
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if args.soft:
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method = 'SOFT'
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elif args.hard:
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method = 'HARD'
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elif args.unsafe:
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method = 'UNSAFE'
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else:
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method = 'NORMAL'
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instance.shutdown(method)
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def main(session: Session, args: argparse.Namespace) -> None:
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"""Perform actions."""
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match args.command:
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case 'create':
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case 'init':
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_create_instance(session, args.file)
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case 'exec':
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_exec_guest_agent_command(session, args)
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@ -211,14 +236,16 @@ def main(session: Session, args: argparse.Namespace) -> None:
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instance = session.get_instance(args.instance)
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instance.start()
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case 'shutdown':
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instance = session.get_instance(args.instance)
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instance.shutdown(args.method)
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_shutdown_instance(session, args)
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case 'reboot':
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instance = session.get_instance(args.instance)
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instance.reboot()
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case 'reset':
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instance = session.get_instance(args.instance)
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instance.reset()
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case 'powrst':
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instance = session.get_instance(args.instance)
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instance.power_reset()
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case 'pause':
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instance = session.get_instance(args.instance)
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instance.pause()
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@ -234,7 +261,7 @@ def main(session: Session, args: argparse.Namespace) -> None:
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case 'setmem':
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instance = session.get_instance(args.instance)
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instance.set_memory(args.memory, live=True)
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case 'setpasswd':
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case 'setpass':
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instance = session.get_instance(args.instance)
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instance.set_user_password(
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args.username,
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@ -261,7 +288,6 @@ def cli() -> None: # noqa: PLR0915
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'-c',
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'--connect',
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metavar='URI',
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default='qemu:///system',
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help='libvirt connection URI',
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)
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root.add_argument(
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@ -270,7 +296,7 @@ def cli() -> None: # noqa: PLR0915
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type=str.lower,
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metavar='LEVEL',
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choices=log_levels,
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help='log level [envvar: CMP_LOG]',
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help='log level',
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)
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root.add_argument(
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'-V',
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@ -280,13 +306,16 @@ def cli() -> None: # noqa: PLR0915
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)
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subparsers = root.add_subparsers(dest='command', metavar='COMMAND')
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# create command
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create = subparsers.add_parser(
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'create', help='create new instance from YAML config file'
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# init command
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init = subparsers.add_parser(
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'init', help='initialise instance using YAML config file'
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)
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create.add_argument(
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init.add_argument(
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'file',
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type=argparse.FileType('r', encoding='UTF-8'),
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nargs='?',
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default='instance.yaml',
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help='instance config [default: instance.yaml]',
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)
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# exec subcommand
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@ -307,14 +336,14 @@ def cli() -> None: # noqa: PLR0915
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default=60,
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help=(
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'waiting time in seconds for a command to be executed '
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'in guest, 60 sec by default'
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'in guest [default: 60]'
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),
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)
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execute.add_argument(
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'-x',
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'--executable',
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default='/bin/sh',
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help='path to executable in guest, /bin/sh by default',
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help='path to executable in guest [default: /bin/sh]',
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)
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execute.add_argument(
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'-e',
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@ -352,12 +381,36 @@ def cli() -> None: # noqa: PLR0915
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# shutdown subcommand
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shutdown = subparsers.add_parser('shutdown', help='shutdown instance')
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shutdown.add_argument('instance')
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shutdown.add_argument(
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'-m',
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'--method',
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choices=['soft', 'normal', 'hard', 'unsafe'],
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default='normal',
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help='use shutdown method',
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shutdown_opts = shutdown.add_mutually_exclusive_group()
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shutdown_opts.add_argument(
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'-s',
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'--soft',
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action='store_true',
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help='normal guest OS shutdown, guest agent is used',
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)
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shutdown_opts.add_argument(
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'-n',
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'--normal',
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action='store_true',
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help='shutdown with hypervisor selected method [default]',
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)
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shutdown_opts.add_argument(
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'-H',
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'--hard',
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action='store_true',
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help=(
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"gracefully destroy instance, it's like long "
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'pressing the power button'
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),
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)
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shutdown_opts.add_argument(
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'-u',
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'--unsafe',
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action='store_true',
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help=(
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'destroy instance, this is similar to a power outage '
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'and may result in data loss or corruption'
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),
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)
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# reboot subcommand
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@ -368,6 +421,10 @@ def cli() -> None: # noqa: PLR0915
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reset = subparsers.add_parser('reset', help='reset instance')
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reset.add_argument('instance')
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# powrst subcommand
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powrst = subparsers.add_parser('powrst', help='power reset instance')
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powrst.add_argument('instance')
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# pause subcommand
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pause = subparsers.add_parser('pause', help='pause instance')
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pause.add_argument('instance')
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@ -390,15 +447,15 @@ def cli() -> None: # noqa: PLR0915
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setmem.add_argument('instance')
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setmem.add_argument('memory', type=int, help='memory in MiB')
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# setpasswd subcommand
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setpasswd = subparsers.add_parser(
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'setpasswd',
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# setpass subcommand
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setpass = subparsers.add_parser(
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'setpass',
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help='set user password in guest',
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)
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setpasswd.add_argument('instance')
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setpasswd.add_argument('username')
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setpasswd.add_argument('password')
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setpasswd.add_argument(
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setpass.add_argument('instance')
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setpass.add_argument('username')
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setpass.add_argument('password')
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setpass.add_argument(
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'-e',
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'--encrypted',
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action='store_true',
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@ -419,10 +476,18 @@ def cli() -> None: # noqa: PLR0915
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)
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log.debug('CLI started with args: %s', args)
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connect_uri = (
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args.connect
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or os.getenv('CMP_LIBVIRT_URI')
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or os.getenv('LIBVIRT_DEFAULT_URI')
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or 'qemu:///system'
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)
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try:
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with Session(args.connect) as session:
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with Session(connect_uri) as session:
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main(session, args)
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except ComputeServiceError as e:
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except ComputeError as e:
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sys.exit(f'error: {e}')
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except KeyboardInterrupt:
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sys.exit()
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