#!/usr/bin/env python3 # -*- coding: utf-8 -*- # # 2010-2013 Nico Schottelius (nico-cdist at schottelius.org) # 2016 Darko Poljak (darko.poljak at gmail.com) # # This file is part of cdist. # # cdist 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, either version 3 of the License, or # (at your option) any later version. # # cdist 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 cdist. If not, see . # # def inspect_ssh_mux_opts(control_path_dir="~/.ssh/"): """Inspect whether or not ssh supports multiplexing options""" import subprocess import os control_path = os.path.join(control_path_dir, "cdist.master-%l-%r@%h:%p") wanted_mux_opts = { "ControlPath": control_path, "ControlMaster": "auto", "ControlPersist": "125", } mux_opts = " ".join([" -o {}={}".format(x, wanted_mux_opts[x]) for x in wanted_mux_opts]) try: subprocess.check_output("ssh {}".format(mux_opts), stderr=subprocess.STDOUT, shell=True) except subprocess.CalledProcessError as e: subproc_output = e.output.decode().lower() if "bad configuration option" in subproc_output: return "" return mux_opts def commandline(): """Parse command line""" import argparse import cdist.banner import cdist.config import cdist.shell import tempfile import shutil import os # Construct parser others can reuse parser = {} # Options _all_ parsers have in common parser['loglevel'] = argparse.ArgumentParser(add_help=False) parser['loglevel'].add_argument('-d', '--debug', help='Set log level to debug', action='store_true', default=False) parser['loglevel'].add_argument('-v', '--verbose', help='Set log level to info, be more verbose', action='store_true', default=False) # Main subcommand parser parser['main'] = argparse.ArgumentParser(description='cdist ' + cdist.VERSION, parents=[parser['loglevel']]) parser['main'].add_argument('-V', '--version', help='Show version', action='version', version='%(prog)s ' + cdist.VERSION) parser['sub'] = parser['main'].add_subparsers(title="Commands") # Banner parser['banner'] = parser['sub'].add_parser('banner', parents=[parser['loglevel']]) parser['banner'].set_defaults(func=cdist.banner.banner) # Config parser['config'] = parser['sub'].add_parser('config', parents=[parser['loglevel']]) parser['config'].add_argument('host', nargs='+', help='one or more hosts to operate on') parser['config'].add_argument('-c', '--conf-dir', help='Add configuration directory (can be repeated, last one wins)', action='append') parser['config'].add_argument('-i', '--initial-manifest', help='Path to a cdist manifest or \'-\' to read from stdin.', dest='manifest', required=False) parser['config'].add_argument('-n', '--dry-run', help='Do not execute code', action='store_true') parser['config'].add_argument('-o', '--out-dir', help='Directory to save cdist output in', dest="out_path") parser['config'].add_argument('-p', '--parallel', help='Operate on multiple hosts in parallel', action='store_true', dest='parallel') parser['config'].add_argument('-s', '--sequential', help='Operate on multiple hosts sequentially (default)', action='store_false', dest='parallel') # remote-copy and remote-exec defaults are environment variables # if set; if not then None - these will be futher handled after # parsing to determine implementation default parser['config'].add_argument('--remote-copy', help='Command to use for remote copy (should behave like scp)', action='store', dest='remote_copy', default=os.environ.get('CDIST_REMOTE_COPY')) parser['config'].add_argument('--remote-exec', help='Command to use for remote execution (should behave like ssh)', action='store', dest='remote_exec', default=os.environ.get('CDIST_REMOTE_EXEC')) parser['config'].set_defaults(func=cdist.config.Config.commandline) # Shell parser['shell'] = parser['sub'].add_parser('shell', parents=[parser['loglevel']]) parser['shell'].add_argument('-s', '--shell', help='Select shell to use, defaults to current shell') parser['shell'].set_defaults(func=cdist.shell.Shell.commandline) for p in parser: parser[p].epilog = "Get cdist at http://www.nico.schottelius.org/software/cdist/" args = parser['main'].parse_args(sys.argv[1:]) # Loglevels are handled globally in here and debug wins over verbose if args.verbose: logging.root.setLevel(logging.INFO) if args.debug: logging.root.setLevel(logging.DEBUG) args_dict = vars(args) # if command with remote_copy and remote_exec params if 'remote_copy' in args_dict and 'remote_exec' in args_dict: # if remote-exec and/or remote-copy args are None then user # didn't specify command line options nor env vars: # inspect multiplexing options for default cdist.REMOTE_COPY/EXEC if args_dict['remote_copy'] is None or args_dict['remote_exec'] is None: control_path_dir = tempfile.mkdtemp(prefix="cdist.control.path") import atexit atexit.register(lambda: shutil.rmtree(control_path_dir)) mux_opts = inspect_ssh_mux_opts(control_path_dir) if args_dict['remote_exec'] is None: args.remote_exec = cdist.REMOTE_EXEC + mux_opts if args_dict['remote_copy'] is None: args.remote_copy = cdist.REMOTE_COPY + mux_opts log.debug(args) log.info("version %s" % cdist.VERSION) # Work around python 3.3 bug: # http://bugs.python.org/issue16308 # http://bugs.python.org/issue9253 # FIXME: catching AttributeError also hides # real problems.. try a different way # FIXME: we always print main help, not # the help of the actual parser being used! try: getattr(args, "func") except AttributeError: parser['main'].print_help() sys.exit(0) args.func(args) if __name__ == "__main__": # Sys is needed for sys.exit() import sys cdistpythonversion = '3.2' if sys.version < cdistpythonversion: print('Python >= ' + cdistpythonversion + ' is required on the source host.', file=sys.stderr) sys.exit(1) exit_code = 0 try: import logging import os import re import cdist import cdist.log logging.setLoggerClass(cdist.log.Log) logging.basicConfig(format='%(levelname)s: %(message)s') log = logging.getLogger("cdist") if re.match("__", os.path.basename(sys.argv[0])): import cdist.emulator emulator = cdist.emulator.Emulator(sys.argv) emulator.run() else: commandline() except KeyboardInterrupt: exit_code = 2 except cdist.Error as e: log.error(e) exit_code = 1 sys.exit(exit_code)