FM / config

/usr/lib/python3/dist-packages/cloudinit/config/

/usr/lib/python3/dist-packages/cloudinit/config

Name	Size	Mode	Actions
schemas/	-	0755	rm
__pycache__/	-	0755	rm
cc_ansible.py	10727	0644	edit dl rm
cc_apk_configure.py	4331	0644	edit dl rm
cc_apt_configure.py	39170	0644	edit dl rm
cc_apt_pipelining.py	1909	0644	edit dl rm
cc_bootcmd.py	1690	0644	edit dl rm
cc_byobu.py	2800	0644	edit dl rm
cc_ca_certs.py	9126	0644	edit dl rm
cc_chef.py	13502	0644	edit dl rm
cc_disable_ec2_metadata.py	1642	0644	edit dl rm
cc_disk_setup.py	52622	0644	edit dl rm
cc_fan.py	1997	0644	edit dl rm
cc_final_message.py	2561	0644	edit dl rm
cc_growpart.py	18809	0644	edit dl rm
cc_grub_dpkg.py	5524	0644	edit dl rm
cc_install_hotplug.py	3260	0644	edit dl rm
cc_keyboard.py	1527	0644	edit dl rm
cc_keys_to_console.py	2138	0644	edit dl rm
cc_landscape.py	3131	0644	edit dl rm
cc_locale.py	1211	0644	edit dl rm
cc_lxd.py	13761	0644	edit dl rm
cc_mcollective.py	4207	0644	edit dl rm
cc_mounts.py	19322	0644	edit dl rm
cc_ntp.py	19528	0644	edit dl rm
cc_package_update_upgrade_install.py	3909	0644	edit dl rm
cc_phone_home.py	3829	0644	edit dl rm
cc_power_state_change.py	6133	0644	edit dl rm
cc_puppet.py	10976	0644	edit dl rm
cc_raspberry_pi.py	6599	0644	edit dl rm
cc_reset_rmc.py	4432	0644	edit dl rm
cc_resizefs.py	10880	0644	edit dl rm
cc_resolv_conf.py	3206	0644	edit dl rm
cc_rh_subscription.py	16545	0644	edit dl rm
cc_rsyslog.py	11745	0644	edit dl rm
cc_runcmd.py	1640	0644	edit dl rm
cc_salt_minion.py	4053	0644	edit dl rm
cc_scripts_per_boot.py	1298	0644	edit dl rm
cc_scripts_per_instance.py	1295	0644	edit dl rm
cc_scripts_per_once.py	1271	0644	edit dl rm
cc_scripts_user.py	1282	0644	edit dl rm
cc_scripts_vendor.py	1292	0644	edit dl rm
cc_seed_random.py	3068	0644	edit dl rm
cc_set_hostname.py	3481	0644	edit dl rm
cc_set_passwords.py	10566	0644	edit dl rm
cc_snap.py	3400	0644	edit dl rm
cc_spacewalk.py	2708	0644	edit dl rm
cc_ssh.py	11224	0644	edit dl rm
cc_ssh_authkey_fingerprints.py	3850	0644	edit dl rm
cc_ssh_import_id.py	5571	0644	edit dl rm
cc_timezone.py	1157	0644	edit dl rm
cc_ubuntu_autoinstall.py	1267	0644	edit dl rm
cc_ubuntu_drivers.py	4174	0644	edit dl rm
cc_ubuntu_pro.py	13971	0644	edit dl rm
cc_update_etc_hosts.py	2522	0644	edit dl rm
cc_update_hostname.py	2230	0644	edit dl rm
cc_users_groups.py	2930	0644	edit dl rm
cc_wireguard.py	6825	0644	edit dl rm
cc_write_files.py	6296	0644	edit dl rm
cc_write_files_deferred.py	1308	0644	edit dl rm
cc_yum_add_repo.py	4641	0644	edit dl rm
cc_zypper_add_repo.py	5052	0644	edit dl rm
modules.py	13643	0644	edit dl rm
schema.py	52049	0644	edit dl rm
__init__.py	40	0644	edit dl rm

Edit: /usr/lib/python3/dist-packages/cloudinit/config/cc_power_state_change.py (6133B)

# Copyright (C) 2011 Canonical Ltd.
#
# Author: Scott Moser <scott.moser@canonical.com>
#
# This file is part of cloud-init. See LICENSE file for license information.

"""Power State Change: Change power state"""

import errno
import logging
import os
import re
import subprocess
import time

from cloudinit import subp, util
from cloudinit.cloud import Cloud
from cloudinit.config import Config
from cloudinit.config.schema import MetaSchema
from cloudinit.distros import ALL_DISTROS
from cloudinit.settings import PER_INSTANCE

frequency = PER_INSTANCE

EXIT_FAIL = 254

meta: MetaSchema = {
    "id": "cc_power_state_change",
    "distros": [ALL_DISTROS],
    "frequency": PER_INSTANCE,
    "activate_by_schema_keys": ["power_state"],
}

LOG = logging.getLogger(__name__)

def givecmdline(pid):
    # Returns the cmdline for the given process id. In Linux we can use procfs
    # for this but on BSD there is /usr/bin/procstat.
    try:
        # Example output from procstat -c 1
        #   PID COMM             ARGS
        #     1 init             /bin/init --
        if util.is_FreeBSD():
            (output, _err) = subp.subp(["procstat", "-c", str(pid)])
            line = output.splitlines()[1]
            m = re.search(r"\d+ (\w|\.|-)+\s+(/\w.+)", line)
            if m:
                return m.group(2)
            else:
                return None
        else:
            return util.load_text_file("/proc/%s/cmdline" % pid)
    except IOError:
        return None

def check_condition(cond):
    if isinstance(cond, bool):
        LOG.debug("Static Condition: %s", cond)
        return cond

pre = "check_condition command (%s): " % cond
    try:
        proc = subprocess.Popen(cond, shell=not isinstance(cond, list))
        proc.communicate()
        ret = proc.returncode
        if ret == 0:
            LOG.debug("%sexited 0. condition met.", pre)
            return True
        elif ret == 1:
            LOG.debug("%sexited 1. condition not met.", pre)
            return False
        else:
            LOG.warning("%sunexpected exit %s. do not apply change.", pre, ret)
            return False
    except Exception as e:
        LOG.warning("%sUnexpected error: %s", pre, e)
        return False

def handle(name: str, cfg: Config, cloud: Cloud, args: list) -> None:
    try:
        (arg_list, timeout, condition) = load_power_state(cfg, cloud.distro)
        if arg_list is None:
            LOG.debug("no power_state provided. doing nothing")
            return
    except Exception as e:
        LOG.warning("%s Not performing power state change!", str(e))
        return

if condition is False:
        LOG.debug("Condition was false. Will not perform state change.")
        return

mypid = os.getpid()

cmdline = givecmdline(mypid)
    if not cmdline:
        LOG.warning("power_state: failed to get cmdline of current process")
        return

devnull_fp = open(os.devnull, "w")

LOG.debug("After pid %s ends, will execute: %s", mypid, " ".join(arg_list))

util.fork_cb(
        run_after_pid_gone,
        mypid,
        cmdline,
        timeout,
        condition,
        execmd,
        [arg_list, devnull_fp],
    )

def load_power_state(cfg, distro):
    # returns a tuple of shutdown_command, timeout
    # shutdown_command is None if no config found
    pstate = cfg.get("power_state")

if pstate is None:
        return (None, None, None)

if not isinstance(pstate, dict):
        raise TypeError("power_state is not a dict.")

modes_ok = ["halt", "poweroff", "reboot"]
    mode = pstate.get("mode")
    if mode not in distro.shutdown_options_map:
        raise TypeError(
            "power_state[mode] required, must be one of: %s. found: '%s'."
            % (",".join(modes_ok), mode)
        )

args = distro.shutdown_command(
        mode=mode,
        delay=pstate.get("delay", "now"),
        message=pstate.get("message"),
    )

try:
        timeout = float(pstate.get("timeout", 30.0))
    except ValueError as e:
        raise ValueError(
            "failed to convert timeout '%s' to float." % pstate["timeout"]
        ) from e

condition = pstate.get("condition", True)
    if not isinstance(condition, (str, list, bool)):
        raise TypeError("condition type %s invalid. must be list, bool, str")
    return (args, timeout, condition)

def doexit(sysexit):
    os._exit(sysexit)

def execmd(exe_args, output=None, data_in=None):
    ret = 1
    try:
        proc = subprocess.Popen(  # nosec B603
            exe_args,
            stdin=subprocess.PIPE,
            stdout=output,
            stderr=subprocess.STDOUT,
        )
        proc.communicate(data_in)
        ret = proc.returncode
    except Exception:
        doexit(EXIT_FAIL)
    doexit(ret)

def run_after_pid_gone(pid, pidcmdline, timeout, condition, func, args):
    # wait until pid, with /proc/pid/cmdline contents of pidcmdline
    # is no longer alive.  After it is gone, or timeout has passed
    # execute func(args)
    msg = None
    end_time = time.monotonic() + timeout

def fatal(msg):
        LOG.warning(msg)
        doexit(EXIT_FAIL)

known_errnos = (errno.ENOENT, errno.ESRCH)

while True:
        if time.monotonic() > end_time:
            msg = "timeout reached before %s ended" % pid
            break

try:
            cmdline = givecmdline(pid)
            if cmdline != pidcmdline:
                msg = "cmdline changed for %s [now: %s]" % (pid, cmdline)
                break

except IOError as ioerr:
            if ioerr.errno in known_errnos:
                msg = "pidfile gone [%d]" % ioerr.errno
            else:
                fatal("IOError during wait: %s" % ioerr)
            break

except Exception as e:
            fatal("Unexpected Exception: %s" % e)

time.sleep(0.25)

if not msg:
        fatal("Unexpected error in run_after_pid_gone")

LOG.debug(msg)

try:
        if not check_condition(condition):
            return
    except Exception as e:
        fatal("Unexpected Exception when checking condition: %s" % e)

func(*args)

cmd: