cloud-init/cloudinit/CloudConfig/cc_updates_check.py

50 lines
1.7 KiB
Python

# vi: ts=4 expandtab
#
# Copyright (C) 2009-2010 Canonical Ltd.
#
# Author: Scott Moser <scott.moser@canonical.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 cloudinit.util as util
import cloudinit
import os
import time
cronpre = "/etc/cron.d/cloudinit"
def handle(name,cfg,cloud,log,args):
if not util.get_cfg_option_bool(cfg, 'updates-check', True):
return
build_info = "/etc/cloud/build.info"
if not os.path.isfile(build_info):
log.warn("no %s file" % build_info)
avail="%s/%s" % ( cloudinit.datadir, "available.build" )
cmd=( "uec-query-builds", "--system-suite", "--config", "%s" % build_info,
"--output", "%s" % avail, "is-update-available" )
try:
util.subp(cmd)
except:
log.warn("failed to execute uec-query-build for updates check")
# add a cron entry for this hour and this minute every day
try:
cron=open("%s-%s" % (cronpre, "updates") ,"w")
cron.write("%s root %s\n" % \
(time.strftime("%M %H * * *"),' '.join(cmd)))
cron.close()
except:
log.warn("failed to enable cron update system check")
raise