Файловый менеджер - Редактировать - /snap/core18/2846/usr/lib/python3/dist-packages/cloudinit/cmd/clean.py
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#!/usr/bin/env python3 # Copyright (C) 2017 Canonical Ltd. # # This file is part of cloud-init. See LICENSE file for license information. """Define 'clean' utility and handler as part of cloud-init commandline.""" import argparse import glob import os import sys from cloudinit import settings from cloudinit.distros import uses_systemd from cloudinit.stages import Init from cloudinit.subp import ProcessExecutionError, runparts, subp from cloudinit.util import ( del_dir, del_file, error, get_config_logfiles, is_link, write_file, ) ETC_MACHINE_ID = "/etc/machine-id" def get_parser(parser=None): """Build or extend an arg parser for clean utility. @param parser: Optional existing ArgumentParser instance representing the clean subcommand which will be extended to support the args of this utility. @returns: ArgumentParser with proper argument configuration. """ if not parser: parser = argparse.ArgumentParser( prog="clean", description=( "Remove logs and artifacts so cloud-init re-runs on " "a clean system" ), ) parser.add_argument( "-l", "--logs", action="store_true", default=False, dest="remove_logs", help="Remove cloud-init logs.", ) parser.add_argument( "--machine-id", action="store_true", default=False, help=( "Set /etc/machine-id to 'uninitialized\n' for golden image" "creation. On next boot, systemd generates a new machine-id." " Remove /etc/machine-id on non-systemd environments." ), ) parser.add_argument( "-r", "--reboot", action="store_true", default=False, help="Reboot system after logs are cleaned so cloud-init re-runs.", ) parser.add_argument( "-s", "--seed", action="store_true", default=False, dest="remove_seed", help="Remove cloud-init seed directory /var/lib/cloud/seed.", ) return parser def remove_artifacts(remove_logs, remove_seed=False): """Helper which removes artifacts dir and optionally log files. @param: remove_logs: Boolean. Set True to delete the cloud_dir path. False preserves them. @param: remove_seed: Boolean. Set True to also delete seed subdir in paths.cloud_dir. @returns: 0 on success, 1 otherwise. """ init = Init(ds_deps=[]) init.read_cfg() if remove_logs: for log_file in get_config_logfiles(init.cfg): del_file(log_file) if not os.path.isdir(init.paths.cloud_dir): return 0 # Artifacts dir already cleaned seed_path = os.path.join(init.paths.cloud_dir, "seed") for path in glob.glob("%s/*" % init.paths.cloud_dir): if path == seed_path and not remove_seed: continue try: if os.path.isdir(path) and not is_link(path): del_dir(path) else: del_file(path) except OSError as e: error("Could not remove {0}: {1}".format(path, str(e))) return 1 try: runparts(settings.CLEAN_RUNPARTS_DIR) except Exception as e: error( f"Failure during run-parts of {settings.CLEAN_RUNPARTS_DIR}: {e}" ) return 1 return 0 def handle_clean_args(name, args): """Handle calls to 'cloud-init clean' as a subcommand.""" exit_code = remove_artifacts(args.remove_logs, args.remove_seed) if args.machine_id: if uses_systemd(): # Systemd v237 and later will create a new machine-id on next boot write_file(ETC_MACHINE_ID, "uninitialized\n", mode=0o444) else: # Non-systemd like FreeBSD regen machine-id when file is absent del_file(ETC_MACHINE_ID) if exit_code == 0 and args.reboot: cmd = ["shutdown", "-r", "now"] try: subp(cmd, capture=False) except ProcessExecutionError as e: error( 'Could not reboot this system using "{0}": {1}'.format( cmd, str(e) ) ) exit_code = 1 return exit_code def main(): """Tool to collect and tar all cloud-init related logs.""" parser = get_parser() sys.exit(handle_clean_args("clean", parser.parse_args())) if __name__ == "__main__": main()
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