100 lines
3.1 KiB
Python
100 lines
3.1 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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#
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# Author: Scott Moser <scott.moser@canonical.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 cloudinit
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import logging
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import cloudinit.util as util
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import subprocess
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import traceback
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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: 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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entries = cfg['rsyslog']
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files = [ ]
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elst = [ ]
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for ent in cfg['rsyslog']:
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if isinstance(ent,dict):
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if not "content" in ent:
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elst.append((ent, "no 'content' entry"))
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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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if not filename.startswith("/"):
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filename = "%s/%s" % (def_dir,filename)
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omode = "ab"
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# truncate filename first time you see it
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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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util.write_file(filename, content + "\n", omode=omode)
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except Exception as e:
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log.debug(traceback.format_exc(e))
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elst.append((content, "failed to write to %s" % filename))
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# need 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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p = util.subp(['service', 'rsyslog', 'restart'])
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restarted = True
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except Exception as e:
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elst.append(("restart", str(e)))
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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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cloudinit.logging_set_from_cfg_file()
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log = logging.getLogger()
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log.debug("rsyslog configured %s" % files)
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for e in elst:
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log.warn("rsyslog error: %s\n" % ':'.join(e))
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return
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