120 lines
3.8 KiB
Python
120 lines
3.8 KiB
Python
# vi: ts=4 expandtab
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#
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# Copyright (C) 2012 Canonical Ltd.
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# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
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# Copyright (C) 2012 Yahoo! Inc.
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#
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# Author: Scott Moser <scott.moser@canonical.com>
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# Author: Juerg Haefliger <juerg.haefliger@hp.com>
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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 re
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from cloudinit import handlers
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from cloudinit import log as logging
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from cloudinit import util
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from cloudinit.settings import (PER_INSTANCE)
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LOG = logging.getLogger(__name__)
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UPSTART_PREFIX = "#upstart-job"
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class UpstartJobPartHandler(handlers.Handler):
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def __init__(self, paths, **_kwargs):
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handlers.Handler.__init__(self, PER_INSTANCE)
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self.upstart_dir = paths.upstart_conf_d
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def list_types(self):
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return [
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handlers.type_from_starts_with(UPSTART_PREFIX),
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]
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def handle_part(self, data, ctype, filename, payload, frequency):
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if ctype in handlers.CONTENT_SIGNALS:
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return
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# See: https://bugs.launchpad.net/bugs/819507
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if frequency != PER_INSTANCE:
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return
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if not self.upstart_dir:
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return
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filename = util.clean_filename(filename)
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(_name, ext) = os.path.splitext(filename)
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if not ext:
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ext = ''
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ext = ext.lower()
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if ext != ".conf":
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filename = filename + ".conf"
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payload = util.dos2unix(payload)
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path = os.path.join(self.upstart_dir, filename)
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util.write_file(path, payload, 0644)
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if SUITABLE_UPSTART:
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util.subp(["initctl", "reload-configuration"], capture=False)
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def _has_suitable_upstart():
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# (LP: #1124384)
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# a bug in upstart means that invoking reload-configuration
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# at this stage in boot causes havoc. So, try to determine if upstart
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# is installed, and reloading configuration is OK.
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if not os.path.exists("/sbin/initctl"):
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return False
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try:
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(version_out, _err) = util.subp(["initctl", "version"])
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except:
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util.logexc(LOG, "initctl version failed")
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return False
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# expecting 'initctl version' to output something like: init (upstart X.Y)
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if re.match("upstart 1.[0-7][)]", version_out):
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return False
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if "upstart 0." in version_out:
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return False
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elif "upstart 1.8" in version_out:
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if not os.path.exists("/usr/bin/dpkg-query"):
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return False
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try:
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(dpkg_ver, _err) = util.subp(["dpkg-query",
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"--showformat=${Version}",
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"--show", "upstart"], rcs=[0, 1])
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except Exception:
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util.logexc(LOG, "dpkg-query failed")
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return False
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try:
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good = "1.8-0ubuntu1.2"
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util.subp(["dpkg", "--compare-versions", dpkg_ver, "ge", good])
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return True
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except util.ProcessExecutionError as e:
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if e.exit_code is 1:
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pass
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else:
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util.logexc(LOG, "dpkg --compare-versions failed [%s]",
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e.exit_code)
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except Exception as e:
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util.logexc(LOG, "dpkg --compare-versions failed")
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return False
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else:
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return True
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SUITABLE_UPSTART = _has_suitable_upstart()
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