100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
# vi: ts=4 expandtab
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#
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# Copyright (C) 2012 Yahoo! Inc.
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#
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# Author: Joshua Harlow <harlowja@yahoo-inc.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 3, as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import time
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from cloudinit import log as logging
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from cloudinit import util
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REBOOT_FILE = "/var/run/reboot-required"
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REBOOT_CMD = ["/sbin/reboot"]
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def _multi_cfg_bool_get(cfg, *keys):
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for k in keys:
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if util.get_cfg_option_bool(cfg, k, False):
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return True
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return False
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def _fire_reboot(log, wait_attempts=6, initial_sleep=1, backoff=2):
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util.subp(REBOOT_CMD)
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start = time.time()
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wait_time = initial_sleep
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for _i in range(0, wait_attempts):
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time.sleep(wait_time)
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wait_time *= backoff
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elapsed = time.time() - start
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log.debug("Rebooted, but still running after %s seconds", int(elapsed))
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# If we got here, not good
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elapsed = time.time() - start
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raise RuntimeError(("Reboot did not happen"
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" after %s seconds!") % (int(elapsed)))
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def handle(_name, cfg, cloud, log, _args):
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# Handle the old style + new config names
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update = _multi_cfg_bool_get(cfg, 'apt_update', 'package_update')
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upgrade = _multi_cfg_bool_get(cfg, 'package_upgrade', 'apt_upgrade')
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reboot_if_required = _multi_cfg_bool_get(cfg, 'apt_reboot_if_required',
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'package_reboot_if_required')
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pkglist = util.get_cfg_option_list(cfg, 'packages', [])
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errors = []
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if update or len(pkglist) or upgrade:
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try:
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cloud.distro.update_package_sources()
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except Exception as e:
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util.logexc(log, "Package update failed")
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errors.append(e)
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if upgrade:
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try:
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cloud.distro.package_command("upgrade")
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except Exception as e:
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util.logexc(log, "Package upgrade failed")
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errors.append(e)
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if len(pkglist):
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try:
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cloud.distro.install_packages(pkglist)
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except Exception as e:
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util.logexc(log, "Failed to install packages: %s", pkglist)
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errors.append(e)
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# TODO(smoser): handle this less violently
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# kernel and openssl (possibly some other packages)
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# write a file /var/run/reboot-required after upgrading.
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# if that file exists and configured, then just stop right now and reboot
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reboot_fn_exists = os.path.isfile(REBOOT_FILE)
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if (upgrade or pkglist) and reboot_if_required and reboot_fn_exists:
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try:
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log.warn("Rebooting after upgrade or install per %s", REBOOT_FILE)
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# Flush the above warning + anything else out...
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logging.flushLoggers(log)
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_fire_reboot(log)
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except Exception as e:
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util.logexc(log, "Requested reboot did not happen!")
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errors.append(e)
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if len(errors):
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log.warn("%s failed with exceptions, re-raising the last one",
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len(errors))
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raise errors[-1]
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