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Direktori : /snap/core22/current/usr/share/netplan/netplan/cli/commands/ |
Current File : //snap/core22/current/usr/share/netplan/netplan/cli/commands/generate.py |
#!/usr/bin/python3 # # Copyright (C) 2018 Canonical, Ltd. # Author: Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; version 3. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. '''netplan generate command line''' import logging import os import sys import subprocess import shutil import netplan.cli.utils as utils class NetplanGenerate(utils.NetplanCommand): def __init__(self): super().__init__(command_id='generate', description='Generate backend specific configuration files' ' from /etc/netplan/*.yaml', leaf=True) def run(self): self.parser.add_argument('--root-dir', help='Search for and generate configuration files in this root directory instead of /') self.parser.add_argument('--mapping', help='Display the netplan device ID/backend/interface name mapping and exit.') self.func = self.command_generate self.parse_args() self.run_command() def command_generate(self): # if we are inside a snap, then call dbus to run netplan apply instead if "SNAP" in os.environ: # TODO: maybe check if we are inside a classic snap and don't do # this if we are in a classic snap? busctl = shutil.which("busctl") if busctl is None: raise RuntimeError("missing busctl utility") # pragma: nocover # XXX: DO NOT TOUCH or change this API call, it is used by snapd to communicate # using core20 netplan binary/client/CLI on core18 base systems. Any change # must be agreed upon with the snapd team, so we don't break support for # base systems running older netplan versions. # https://github.com/snapcore/snapd/pull/10212 res = subprocess.call([busctl, "call", "--quiet", "--system", "io.netplan.Netplan", # the service "/io/netplan/Netplan", # the object "io.netplan.Netplan", # the interface "Generate", # the method ]) if res != 0: if res == 130: raise PermissionError( "failed to communicate with dbus service") else: raise RuntimeError( "failed to communicate with dbus service: error %s" % res) else: return argv = [utils.get_generator_path()] if self.root_dir: argv += ['--root-dir', self.root_dir] if self.mapping: argv += ['--mapping', self.mapping] logging.debug('command generate: running %s', argv) # FIXME: os.execv(argv[0], argv) would be better but fails coverage sys.exit(subprocess.call(argv))