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# vi: ts=4 expandtab
#
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import os
import time
from cloudinit import log as logging
from cloudinit import util
REBOOT_FILE = "/var/run/reboot-required"
REBOOT_CMD = ["/sbin/reboot"]
def _multi_cfg_bool_get(cfg, *keys):
for k in keys:
if util.get_cfg_option_bool(cfg, k, False):
return True
return False
def _fire_reboot(log, wait_attempts=6, initial_sleep=1, backoff=2):
util.subp(REBOOT_CMD)
start = time.time()
wait_time = initial_sleep
for _i in range(0, wait_attempts):
time.sleep(wait_time)
wait_time *= backoff
elapsed = time.time() - start
log.debug("Rebooted, but still running after %s seconds", int(elapsed))
# If we got here, not good
elapsed = time.time() - start
raise RuntimeError(("Reboot did not happen"
" after %s seconds!") % (int(elapsed)))
def handle(_name, cfg, cloud, log, _args):
# Handle the old style + new config names
update = _multi_cfg_bool_get(cfg, 'apt_update', 'package_update')
upgrade = _multi_cfg_bool_get(cfg, 'package_upgrade', 'apt_upgrade')
reboot_if_required = _multi_cfg_bool_get(cfg, 'apt_reboot_if_required',
'package_reboot_if_required')
pkglist = util.get_cfg_option_list(cfg, 'packages', [])
errors = []
if update or len(pkglist) or upgrade:
try:
cloud.distro.update_package_sources()
except Exception as e:
util.logexc(log, "Package update failed")
errors.append(e)
if upgrade:
try:
cloud.distro.package_command("upgrade")
except Exception as e:
util.logexc(log, "Package upgrade failed")
errors.append(e)
if len(pkglist):
try:
cloud.distro.install_packages(pkglist)
except Exception as e:
util.logexc(log, "Failed to install packages: %s", pkglist)
errors.append(e)
# TODO(smoser): handle this less violently
# kernel and openssl (possibly some other packages)
# write a file /var/run/reboot-required after upgrading.
# if that file exists and configured, then just stop right now and reboot
reboot_fn_exists = os.path.isfile(REBOOT_FILE)
if (upgrade or pkglist) and reboot_if_required and reboot_fn_exists:
try:
log.warn("Rebooting after upgrade or install per %s", REBOOT_FILE)
# Flush the above warning + anything else out...
logging.flushLoggers(log)
_fire_reboot(log)
except Exception as e:
util.logexc(log, "Requested reboot did not happen!")
errors.append(e)
if len(errors):
log.warn("%s failed with exceptions, re-raising the last one",
len(errors))
raise errors[-1]
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