Файловый менеджер - Редактировать - /snap/core18/2846/usr/lib/python3/dist-packages/cloudinit/config/cc_bootcmd.py
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# Copyright (C) 2009-2011 Canonical Ltd. # Copyright (C) 2012, 2013 Hewlett-Packard Development Company, L.P. # # Author: Scott Moser <scott.moser@canonical.com> # Author: Juerg Haefliger <juerg.haefliger@hp.com> # Author: Chad Smith <chad.smith@canonical.com> # # This file is part of cloud-init. See LICENSE file for license information. """Bootcmd: run arbitrary commands early in the boot process.""" import os from logging import Logger from textwrap import dedent from cloudinit import subp, temp_utils, util from cloudinit.cloud import Cloud from cloudinit.config import Config from cloudinit.config.schema import MetaSchema, get_meta_doc from cloudinit.settings import PER_ALWAYS frequency = PER_ALWAYS distros = ["all"] meta: MetaSchema = { "id": "cc_bootcmd", "name": "Bootcmd", "title": "Run arbitrary commands early in the boot process", "description": dedent( """\ This module runs arbitrary commands very early in the boot process, only slightly after a boothook would run. This is very similar to a boothook, but more user friendly. The environment variable ``INSTANCE_ID`` will be set to the current instance id for all run commands. Commands can be specified either as lists or strings. For invocation details, see ``runcmd``. .. note:: bootcmd should only be used for things that could not be done later in the boot process. .. note:: when writing files, do not use /tmp dir as it races with systemd-tmpfiles-clean LP: #1707222. Use /run/somedir instead. """ ), "distros": distros, "examples": [ dedent( """\ bootcmd: - echo 192.168.1.130 us.archive.ubuntu.com > /etc/hosts - [ cloud-init-per, once, mymkfs, mkfs, /dev/vdb ] """ ) ], "frequency": PER_ALWAYS, "activate_by_schema_keys": ["bootcmd"], } __doc__ = get_meta_doc(meta) def handle( name: str, cfg: Config, cloud: Cloud, log: Logger, args: list ) -> None: if "bootcmd" not in cfg: log.debug( "Skipping module named %s, no 'bootcmd' key in configuration", name ) return with temp_utils.ExtendedTemporaryFile(suffix=".sh") as tmpf: try: content = util.shellify(cfg["bootcmd"]) tmpf.write(util.encode_text(content)) tmpf.flush() except Exception as e: util.logexc(log, "Failed to shellify bootcmd: %s", str(e)) raise try: env = os.environ.copy() iid = cloud.get_instance_id() if iid: env["INSTANCE_ID"] = str(iid) cmd = ["/bin/sh", tmpf.name] subp.subp(cmd, env=env, capture=False) except Exception: util.logexc(log, "Failed to run bootcmd module %s", name) raise # vi: ts=4 expandtab
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