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#! /usr/bin/python
#
# analog: Remote logging manager for the Red Hat Installer
#
# Copyright (C) 2010
# Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# 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/>.
#
# Author: Ales Kozumplik <akozumpl@redhat.com>
#
import getpass
import errno
import optparse
import os
import os.path
import signal
import sys
DEFAULT_PORT = 6080
DEFAULT_ANALOG_DIR = '.analog'
USAGE = "%prog [options] <log directory root>"
HINT = "/sbin/rsyslogd -c 4 -f %(conf)s -i %(pid)s"
PID_LOCATION = "/tmp/%(username)s/rsyslogd_%(port)s.pid"
RSYSLOG_TEMPLATE ="""
#### MODULES ####
# Provides TCP syslog reception
$ModLoad imtcp.so
$InputTCPServerRun %(port)s
#### GLOBAL DIRECTIVES ####
# Use default timestamp format
$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
# File syncing capability is disabled by default. This feature is usually not required,
# not useful and an extreme performance hit
#$ActionFileEnableSync on
#### RULES ####
$template anaconda_tty4, "%%timestamp:8:$:date-rfc3164%%,%%timestamp:1:3:date-subseconds%% %%syslogseverity-text:::uppercase%% %%programname%%:%%msg%%\\n"
$template anaconda_debug, "%%syslogfacility-text%%|%%hostname%%|%%syslogseverity-text%%|%%syslogtag%%|%%msg%%\\n"
$template anaconda_syslog, "%%timestamp:8:$:date-rfc3164%%,%%timestamp:1:3:date-subseconds%% %%syslogseverity-text:::uppercase%% %%programname%%:%%msg%%\\n"
$template path_syslog, "%(directory)s/%%FROMHOST-IP%%/syslog
$template path_anaconda, "%(directory)s/%%FROMHOST-IP%%/anaconda.log"
$template path_program, "%(directory)s/%%FROMHOST-IP%%/program.log"
$template path_storage, "%(directory)s/%%FROMHOST-IP%%/storage.log"
$template path_sysimage, "%(directory)s/%%FROMHOST-IP%%/install.log.syslog"
*.* %(directory)s/debug_all.log;anaconda_debug
kern.*;\\
daemon.* ?path_syslog;anaconda_syslog
:programname, contains, "loader" ?path_anaconda;anaconda_syslog
:programname, contains, "anaconda" ?path_anaconda;anaconda_syslog
:programname, contains, "program" ?path_program;anaconda_syslog
:programname, contains, "storage" ?path_storage;anaconda_syslog
:hostname, contains, "sysimage" ?path_sysimage;anaconda_syslog
# discard those that we logged
:programname, contains, "rsyslogd" ~
:programname, contains, "loader" ~
:programname, contains, "anaconda" ~
:programname, contains, "program" ~
:programname, contains, "storage" ~
:hostname, contains, "sysimage" ~
kern.* ~
daemon.* ~
# dump the rest
*.* %(directory)s/debug_unknown_source.log;anaconda_debug
"""
# option parsing
class OptParserError(Exception):
def __str__(self):
return self.args[0]
@property
def parser(self):
return self.args[1]
def get_opts():
parser = optparse.OptionParser(usage=USAGE,
add_help_option=False)
parser.add_option ('-h', '--help', action="callback", callback=help_and_exit,
help="Display this help")
parser.add_option ('-p', type="int", dest="port",
default=DEFAULT_PORT,
help="TCP port the rsyslog daemon will listen on")
parser.add_option ('-o', type="string", dest="output",
default=None,
help="Output file")
parser.add_option ('-s', action="store_true", dest="stdout",
default=False,
help="Generate bash command to run rsyslogd on stdout (only valid when -o is also specified)")
(options, args) = parser.parse_args()
if len(args) < 1:
raise OptParserError("no log root directory given", parser)
if options.stdout and not options.output:
raise OptParserError("-s only valid with -o", parser)
options.log_root = args[0]
args = args[1:]
return (options, args)
def help_and_exit(option, opt, value, parser):
parser.print_help()
sys.exit(0)
def generate_rsyslog_config(port, directory):
values = {
"directory" : directory,
"port" : port
}
config = RSYSLOG_TEMPLATE % values
return config
def pid_location(port):
# find the target location
name = getpass.getuser()
values = {
"username" : name,
"port" : port
}
location = PID_LOCATION % values
# now make sure the directory exists
directory = os.path.dirname(location)
if not os.path.exists(directory):
os.mkdir(directory)
return location
if __name__ == "__main__":
try:
(options, args) = get_opts()
except OptParserError as exc:
exc.parser.error(str(exc))
sys.exit(1)
directory = os.path.join(os.getcwd(), options.log_root)
config = generate_rsyslog_config(options.port, directory)
if options.output:
with open(options.output, 'w') as file:
file.write(config)
if options.stdout:
pid = pid_location(options.port)
print HINT % {
"conf" : options.output,
"pid" : pid
}
else:
print config
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