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# Copyright (C) 2012 Canonical Ltd.
# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
# Copyright (C) 2012 Yahoo! Inc.
#
# Author: Scott Moser <scott.moser@canonical.com>
# Author: Juerg Haefliger <juerg.haefliger@hp.com>
# Author: Joshua Harlow <harlowja@yahoo-inc.com>
#
# This file is part of cloud-init. See LICENSE file for license information.
import os
import re
from cloudinit import handlers
from cloudinit import log as logging
from cloudinit import util
from cloudinit.settings import (PER_INSTANCE)
LOG = logging.getLogger(__name__)
UPSTART_PREFIX = "#upstart-job"
class UpstartJobPartHandler(handlers.Handler):
def __init__(self, paths, **_kwargs):
handlers.Handler.__init__(self, PER_INSTANCE)
self.upstart_dir = paths.upstart_conf_d
def list_types(self):
return [
handlers.type_from_starts_with(UPSTART_PREFIX),
]
def handle_part(self, data, ctype, filename, payload, frequency):
if ctype in handlers.CONTENT_SIGNALS:
return
# See: https://bugs.launchpad.net/bugs/819507
if frequency != PER_INSTANCE:
return
if not self.upstart_dir:
return
filename = util.clean_filename(filename)
(_name, ext) = os.path.splitext(filename)
if not ext:
ext = ''
ext = ext.lower()
if ext != ".conf":
filename = filename + ".conf"
payload = util.dos2unix(payload)
path = os.path.join(self.upstart_dir, filename)
util.write_file(path, payload, 0o644)
if SUITABLE_UPSTART:
util.subp(["initctl", "reload-configuration"], capture=False)
def _has_suitable_upstart():
# (LP: #1124384)
# a bug in upstart means that invoking reload-configuration
# at this stage in boot causes havoc. So, try to determine if upstart
# is installed, and reloading configuration is OK.
if not os.path.exists("/sbin/initctl"):
return False
try:
(version_out, _err) = util.subp(["initctl", "version"])
except Exception:
util.logexc(LOG, "initctl version failed")
return False
# expecting 'initctl version' to output something like: init (upstart X.Y)
if re.match("upstart 1.[0-7][)]", version_out):
return False
if "upstart 0." in version_out:
return False
elif "upstart 1.8" in version_out:
if not os.path.exists("/usr/bin/dpkg-query"):
return False
try:
(dpkg_ver, _err) = util.subp(["dpkg-query",
"--showformat=${Version}",
"--show", "upstart"], rcs=[0, 1])
except Exception:
util.logexc(LOG, "dpkg-query failed")
return False
try:
good = "1.8-0ubuntu1.2"
util.subp(["dpkg", "--compare-versions", dpkg_ver, "ge", good])
return True
except util.ProcessExecutionError as e:
if e.exit_code is 1:
pass
else:
util.logexc(LOG, "dpkg --compare-versions failed [%s]",
e.exit_code)
except Exception:
util.logexc(LOG, "dpkg --compare-versions failed")
return False
else:
return True
SUITABLE_UPSTART = _has_suitable_upstart()
# vi: ts=4 expandtab
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