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📄 __init__.py(1.4 KB)
📄 __init__.pyc(1.31 KB)
📄 __init__.pyo(1.31 KB)
📄 cc_apt_configure.py(32.8 KB)
📄 cc_apt_configure.pyc(30.2 KB)
📄 cc_apt_configure.pyo(30.2 KB)
📄 cc_apt_pipelining.py(2.44 KB)
📄 cc_apt_pipelining.pyc(2.48 KB)
📄 cc_apt_pipelining.pyo(2.48 KB)
📄 cc_bootcmd.py(3.5 KB)
📄 cc_bootcmd.pyc(3.02 KB)
📄 cc_bootcmd.pyo(3.02 KB)
📄 cc_byobu.py(3.1 KB)
📄 cc_byobu.pyc(3.09 KB)
📄 cc_byobu.pyo(3.09 KB)
📄 cc_ca_certs.py(4.09 KB)
📄 cc_ca_certs.pyc(4.1 KB)
📄 cc_ca_certs.pyo(4.1 KB)
📄 cc_chef.py(13.17 KB)
📄 cc_chef.pyc(10.79 KB)
📄 cc_chef.pyo(10.79 KB)
📄 cc_debug.py(3.08 KB)
📄 cc_debug.pyc(3.35 KB)
📄 cc_debug.pyo(3.35 KB)
📄 cc_disable_ec2_metadata.py(1.56 KB)
📄 cc_disable_ec2_metadata.pyc(1.57 KB)
📄 cc_disable_ec2_metadata.pyo(1.57 KB)
📄 cc_disk_setup.py(32.8 KB)
📄 cc_disk_setup.pyc(28.91 KB)
📄 cc_disk_setup.pyo(28.91 KB)
📄 cc_emit_upstart.py(2 KB)
📄 cc_emit_upstart.pyc(2.15 KB)
📄 cc_emit_upstart.pyo(2.15 KB)
📄 cc_fan.py(2.83 KB)
📄 cc_fan.pyc(3.09 KB)
📄 cc_fan.pyo(3.09 KB)
📄 cc_final_message.py(2.35 KB)
📄 cc_final_message.pyc(2.39 KB)
📄 cc_final_message.pyo(2.39 KB)
📄 cc_foo.py(2.07 KB)
📄 cc_foo.pyc(702 B)
📄 cc_foo.pyo(702 B)
📄 cc_growpart.py(11.51 KB)
📄 cc_growpart.pyc(11.12 KB)
📄 cc_growpart.pyo(11.12 KB)
📄 cc_grub_dpkg.py(2.87 KB)
📄 cc_grub_dpkg.pyc(2.63 KB)
📄 cc_grub_dpkg.pyo(2.63 KB)
📄 cc_keys_to_console.py(2.36 KB)
📄 cc_keys_to_console.pyc(2.39 KB)
📄 cc_keys_to_console.pyo(2.39 KB)
📄 cc_landscape.py(3.93 KB)
📄 cc_landscape.pyc(4.02 KB)
📄 cc_landscape.pyo(4.02 KB)
📄 cc_locale.py(1.16 KB)
📄 cc_locale.pyc(1.16 KB)
📄 cc_locale.pyo(1.16 KB)
📄 cc_lxd.py(10.27 KB)
📄 cc_lxd.pyc(8.33 KB)
📄 cc_lxd.pyo(8.33 KB)
📄 cc_mcollective.py(5.08 KB)
📄 cc_mcollective.pyc(3.8 KB)
📄 cc_mcollective.pyo(3.8 KB)
📄 cc_migrator.py(3.07 KB)
📄 cc_migrator.pyc(3.18 KB)
📄 cc_migrator.pyo(3.18 KB)
📄 cc_mounts.py(17.24 KB)
📄 cc_mounts.pyc(14.59 KB)
📄 cc_mounts.pyo(14.59 KB)
📄 cc_ntp.py(20.19 KB)
📄 cc_ntp.pyc(15.74 KB)
📄 cc_ntp.pyo(15.74 KB)
📄 cc_package_update_upgrade_install.py(4.11 KB)
📄 cc_package_update_upgrade_install.pyc(4.01 KB)
📄 cc_package_update_upgrade_install.pyo(4.01 KB)
📄 cc_phone_home.py(3.92 KB)
📄 cc_phone_home.pyc(3.28 KB)
📄 cc_phone_home.pyo(3.28 KB)
📄 cc_power_state_change.py(7.65 KB)
📄 cc_power_state_change.pyc(7.8 KB)
📄 cc_power_state_change.pyo(7.8 KB)
📄 cc_puppet.py(8.86 KB)
📄 cc_puppet.pyc(7.06 KB)
📄 cc_puppet.pyo(7.06 KB)
📄 cc_resizefs.py(10.79 KB)
📄 cc_resizefs.pyc(9.15 KB)
📄 cc_resizefs.pyo(9.15 KB)
📄 cc_resolv_conf.py(3.43 KB)
📄 cc_resolv_conf.pyc(3.44 KB)
📄 cc_resolv_conf.pyo(3.44 KB)
📄 cc_rh_subscription.py(15.65 KB)
📄 cc_rh_subscription.pyc(13.5 KB)
📄 cc_rh_subscription.pyo(13.5 KB)
📄 cc_rightscale_userdata.py(3.76 KB)
📄 cc_rightscale_userdata.pyc(2.82 KB)
📄 cc_rightscale_userdata.pyo(2.82 KB)
📄 cc_rsyslog.py(14.1 KB)
📄 cc_rsyslog.pyc(10.56 KB)
📄 cc_rsyslog.pyo(10.56 KB)
📄 cc_runcmd.py(3.11 KB)
📄 cc_runcmd.pyc(2.73 KB)
📄 cc_runcmd.pyo(2.73 KB)
📄 cc_salt_minion.py(4.66 KB)
📄 cc_salt_minion.pyc(3.78 KB)
📄 cc_salt_minion.pyo(3.78 KB)
📄 cc_scripts_per_boot.py(1.2 KB)
📄 cc_scripts_per_boot.pyc(1.2 KB)
📄 cc_scripts_per_boot.pyo(1.2 KB)
📄 cc_scripts_per_instance.py(1.38 KB)
📄 cc_scripts_per_instance.pyc(1.38 KB)
📄 cc_scripts_per_instance.pyo(1.38 KB)
📄 cc_scripts_per_once.py(1.31 KB)
📄 cc_scripts_per_once.pyc(1.31 KB)
📄 cc_scripts_per_once.pyo(1.31 KB)
📄 cc_scripts_user.py(1.42 KB)
📄 cc_scripts_user.pyc(1.38 KB)
📄 cc_scripts_user.pyo(1.38 KB)
📄 cc_scripts_vendor.py(1.38 KB)
📄 cc_scripts_vendor.pyc(1.46 KB)
📄 cc_scripts_vendor.pyo(1.46 KB)
📄 cc_seed_random.py(4.39 KB)
📄 cc_seed_random.pyc(4.53 KB)
📄 cc_seed_random.pyo(4.53 KB)
📄 cc_set_hostname.py(2.95 KB)
📄 cc_set_hostname.pyc(2.72 KB)
📄 cc_set_hostname.pyo(2.72 KB)
📄 cc_set_passwords.py(8.45 KB)
📄 cc_set_passwords.pyc(7.62 KB)
📄 cc_set_passwords.pyo(7.62 KB)
📄 cc_snap.py(8.11 KB)
📄 cc_snap.pyc(7.54 KB)
📄 cc_snap.pyo(7.54 KB)
📄 cc_snap_config.py(5.37 KB)
📄 cc_snap_config.pyc(5.03 KB)
📄 cc_snap_config.pyo(5.03 KB)
📄 cc_snappy.py(9.69 KB)
📄 cc_snappy.pyc(9.27 KB)
📄 cc_snappy.pyo(9.27 KB)
📄 cc_spacewalk.py(2.89 KB)
📄 cc_spacewalk.pyc(2.91 KB)
📄 cc_spacewalk.pyo(2.91 KB)
📄 cc_ssh.py(10.59 KB)
📄 cc_ssh.pyc(9.11 KB)
📄 cc_ssh.pyo(9.11 KB)
📄 cc_ssh_authkey_fingerprints.py(3.43 KB)
📄 cc_ssh_authkey_fingerprints.pyc(3.94 KB)
📄 cc_ssh_authkey_fingerprints.pyo(3.94 KB)
📄 cc_ssh_import_id.py(2.88 KB)
📄 cc_ssh_import_id.pyc(2.72 KB)
📄 cc_ssh_import_id.pyo(2.72 KB)
📄 cc_timezone.py(1.15 KB)
📄 cc_timezone.pyc(1.15 KB)
📄 cc_timezone.pyo(1.15 KB)
📄 cc_ubuntu_advantage.py(6.08 KB)
📄 cc_ubuntu_advantage.pyc(6.12 KB)
📄 cc_ubuntu_advantage.pyo(6.12 KB)
📄 cc_ubuntu_drivers.py(5.66 KB)
📄 cc_ubuntu_drivers.pyc(4.63 KB)
📄 cc_ubuntu_drivers.pyo(4.63 KB)
📄 cc_update_etc_hosts.py(3.33 KB)
📄 cc_update_etc_hosts.pyc(2.99 KB)
📄 cc_update_etc_hosts.pyo(2.99 KB)
📄 cc_update_hostname.py(1.58 KB)
📄 cc_update_hostname.pyc(1.66 KB)
📄 cc_update_hostname.pyo(1.66 KB)
📄 cc_users_groups.py(7.06 KB)
📄 cc_users_groups.pyc(6.76 KB)
📄 cc_users_groups.pyo(6.76 KB)
📄 cc_write_files.py(4.95 KB)
📄 cc_write_files.pyc(5.13 KB)
📄 cc_write_files.pyo(5.13 KB)
📄 cc_yum_add_repo.py(4.27 KB)
📄 cc_yum_add_repo.pyc(3.88 KB)
📄 cc_yum_add_repo.pyo(3.88 KB)
📄 cc_zypper_add_repo.py(7.62 KB)
📄 cc_zypper_add_repo.pyc(7.12 KB)
📄 cc_zypper_add_repo.pyo(7.12 KB)
📄 schema.py(14.06 KB)
📄 schema.pyc(13.83 KB)
📄 schema.pyo(13.83 KB)

Editing: cc_power_state_change.py

# 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
------------------
**Summary:** change power state

This module handles shutdown/reboot after all config modules have been run. By
default it will take no action, and the system will keep running unless a
package installation/upgrade requires a system reboot (e.g. installing a new
kernel) and ``package_reboot_if_required`` is true. The ``power_state`` config
key accepts a dict of options. If ``mode`` is any value other than
``poweroff``, ``halt``, or ``reboot``, then no action will be taken.

The system
can be shutdown before cloud-init has finished using the ``timeout`` option.
The ``delay`` key specifies a duration to be added onto any shutdown command
used. Therefore, if a 5 minute delay and a 120 second shutdown are specified,
the maximum amount of time between cloud-init starting and the system shutting
down is 7 minutes, and the minimum amount of time is 5 minutes. The ``delay``
key must have an argument in a form that the ``shutdown`` utility recognizes.
The most common format is the form ``+5`` for 5 minutes. See ``man shutdown``
for more options.

Optionally, a command can be run to determine whether or not
the system should shut down. The command to be run should be specified in the
``condition`` key. For command formatting, see the documentation for
``cc_runcmd``. The specified shutdown behavior will only take place if the
``condition`` key is omitted or the command specified by the ``condition``
key returns 0.

**Internal name:** ``cc_power_state_change``

**Module frequency:** per instance

**Supported distros:** all

**Config keys**::

power_state:
        delay: <now/'+minutes'>
        mode: <poweroff/halt/reboot>
        message: <shutdown message>
        timeout: <seconds>
        condition: <true/false/command>
"""

from cloudinit.settings import PER_INSTANCE
from cloudinit import util

import errno
import os
import re
import six
import subprocess
import time

frequency = PER_INSTANCE

EXIT_FAIL = 254

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) = util.subp(['procstat', '-c', str(pid)])
            line = output.splitlines()[1]
            m = re.search(r'\d+ (\w|\.|-)+\s+(/\w.+)', line)
            return m.group(2)
        else:
            return util.load_file("/proc/%s/cmdline" % pid)
    except IOError:
        return None

def check_condition(cond, log=None):
    if isinstance(cond, bool):
        if log:
            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:
            if log:
                log.debug(pre + "exited 0. condition met.")
            return True
        elif ret == 1:
            if log:
                log.debug(pre + "exited 1. condition not met.")
            return False
        else:
            if log:
                log.warning(pre + "unexpected exit %s. " % ret +
                            "do not apply change.")
            return False
    except Exception as e:
        if log:
            log.warning(pre + "Unexpected error: %s" % e)
        return False

def handle(_name, cfg, _cloud, log, _args):
    try:
        (args, timeout, condition) = load_power_state(cfg)
        if args 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(args)))

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

def load_power_state(cfg):
    # 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.")

opt_map = {'halt': '-H', 'poweroff': '-P', 'reboot': '-r'}

mode = pstate.get("mode")
    if mode not in opt_map:
        raise TypeError(
            "power_state[mode] required, must be one of: %s. found: '%s'." %
            (','.join(opt_map.keys()), mode))

delay = pstate.get("delay", "now")
    # convert integer 30 or string '30' to '+30'
    try:
        delay = "+%s" % int(delay)
    except ValueError:
        pass

if delay != "now" and not re.match(r"\+[0-9]+", delay):
        raise TypeError(
            "power_state[delay] must be 'now' or '+m' (minutes)."
            " found '%s'." % delay)

args = ["shutdown", opt_map[mode], delay]
    if pstate.get("message"):
        args.append(pstate.get("message"))

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

condition = pstate.get("condition", True)
    if not isinstance(condition, six.string_types + (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(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, log, 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.time() + timeout

def fatal(msg):
        if log:
            log.warning(msg)
        doexit(EXIT_FAIL)

known_errnos = (errno.ENOENT, errno.ESRCH)

while True:
        if time.time() > 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(.25)

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

if log:
        log.debug(msg)

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

func(*args)

# vi: ts=4 expandtab

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