103 lines
3.4 KiB
Python
103 lines
3.4 KiB
Python
# vi: ts=4 expandtab syntax=python
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#
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# Copyright (C) 2009-2010 Canonical Ltd.
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# Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
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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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#
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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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from cloudinit import util
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DEF_FILENAME = "20-cloud-config.conf"
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DEF_DIR = "/etc/rsyslog.d"
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def handle(name, cfg, cloud, log, _args):
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# rsyslog:
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# - "*.* @@192.158.1.1"
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# - content: "*.* @@192.0.2.1:10514"
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# - filename: 01-examplecom.conf
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# content: |
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# *.* @@syslogd.example.com
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# process 'rsyslog'
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if not 'rsyslog' in cfg:
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log.debug(("Skipping module named %s,"
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" no 'rsyslog' key in configuration"), name)
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return
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def_dir = cfg.get('rsyslog_dir', DEF_DIR)
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def_fname = cfg.get('rsyslog_filename', DEF_FILENAME)
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files = []
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for i, ent in enumerate(cfg['rsyslog']):
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if isinstance(ent, dict):
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if not "content" in ent:
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log.warn("No 'content' entry in config entry %s", i + 1)
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continue
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content = ent['content']
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filename = ent.get("filename", def_fname)
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else:
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content = ent
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filename = def_fname
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filename = filename.strip()
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if not filename:
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log.warn("Entry %s has an empty filename", i + 1)
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continue
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if not filename.startswith("/"):
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filename = os.path.join(def_dir, filename)
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# Truncate filename first time you see it
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omode = "ab"
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if filename not in files:
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omode = "wb"
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files.append(filename)
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try:
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contents = "%s\n" % (content)
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util.write_file(cloud.paths.join(False, filename),
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contents, omode=omode)
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except Exception:
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util.logexc(log, "Failed to write to %s", filename)
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# Attempt to restart syslogd
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restarted = False
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try:
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# If this config module is running at cloud-init time
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# (before rsyslog is running) we don't actually have to
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# restart syslog.
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#
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# Upstart actually does what we want here, in that it doesn't
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# start a service that wasn't running already on 'restart'
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# it will also return failure on the attempt, so 'restarted'
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# won't get set.
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log.debug("Restarting rsyslog")
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util.subp(['service', 'rsyslog', 'restart'])
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restarted = True
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except Exception:
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util.logexc(log, "Failed restarting rsyslog")
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if restarted:
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# This only needs to run if we *actually* restarted
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# syslog above.
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cloud.cycle_logging()
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# This should now use rsyslog if
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# the logging was setup to use it...
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log.debug("%s configured %s files", name, files)
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