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-   -   analog: support reading the installation logs from a unix socket. (http://www.linux-archive.org/edubuntu-development/398633-analog-support-reading-installation-logs-unix-socket.html)

Ales Kozumplik 07-13-2010 03:38 PM

analog: support reading the installation logs from a unix socket.
 
Related: rhbz#576439
---
scripts/analog | 81 ++++++++++++++++++++++++++++++++++++++++----------------
1 files changed, 58 insertions(+), 23 deletions(-)

diff --git a/scripts/analog b/scripts/analog
index 7167041..1041372 100755
--- a/scripts/analog
+++ b/scripts/analog
@@ -35,13 +35,18 @@ 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"
+PID_LOCATION = "/tmp/%(username)s/rsyslogd_%(unique_id)s.pid"
+
+INPUT_TCP_TEMPLATE = "$InputTCPServerRun %(port)s"
+INPUT_SOCKET_TEMPLATE = "$AddUnixListenSocket %(socket)s"

RSYSLOG_TEMPLATE ="""
#### MODULES ####
# Provides TCP syslog reception
$ModLoad imtcp.so
-$InputTCPServerRun %(port)s
+$ModLoad imuxsock
+$OmitLocalLogging on
+%(input_directive)s

#### GLOBAL DIRECTIVES ####

@@ -56,19 +61,20 @@ $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat
#### RULES ####

$template anaconda_tty4, "%%timestamp:8:$:date-rfc3164%%,%%timestamp:1:3:date-subseconds%% %%syslogseverity-text:::uppercase%% %%programname%%:%%msg%%
"
-$template anaconda_debug, "%%syslogfacility-text%%|%%hostname%%|%%syslogseverity-text%%|%%syslogtag%%|%%msg%%
"
+$template anaconda_debug, "%%rawmsg%%
"
$template anaconda_syslog, "%%timestamp:8:$:date-rfc3164%%,%%timestamp:1:3:date-subseconds%% %%syslogseverity-text:::uppercase%% %%programname%%:%%msg%%
"

-$template path_syslog, "%(directory)s/%%FROMHOST-IP%%/syslog
-$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"
-$template path_sysimage, "%(directory)s/%%FROMHOST-IP%%/install.log.syslog"
+$template path_syslog, "%(directory)s/%(subdirectory)s/syslog
+$template path_anaconda, "%(directory)s/%(subdirectory)s/anaconda.log"
+$template path_program, "%(directory)s/%(subdirectory)s/program.log"
+$template path_storage, "%(directory)s/%(subdirectory)s/storage.log"
+$template path_sysimage, "%(directory)s/%(subdirectory)s/install.log.syslog"

*.* %(directory)s/debug_all.log;anaconda_debug

kern.*;
-daemon.* ?path_syslog;anaconda_syslog
+daemon.*;
+authpriv.* ?path_syslog;anaconda_syslog

:programname, contains, "loader" ?path_anaconda;anaconda_syslog
:programname, contains, "anaconda" ?path_anaconda;anaconda_syslog
@@ -85,6 +91,7 @@ daemon.* ?path_syslog;anaconda_syslo
:hostname, contains, "sysimage" ~
kern.* ~
daemon.* ~
+authpriv.* ~
# dump the rest
*.* %(directory)s/debug_unknown_source.log;anaconda_debug

@@ -98,27 +105,50 @@ class OptParserError(Exception):
@property
def parser(self):
return self.args[1]
-
+
+def absolute_path(input_path):
+ """
+ If the path doesn't start with a slash, consider it relative to the current
+ working directory.
+
+ Returns aboslute path of 'path'.
+ """
+ path = os.path.join(os.getcwd(), input_path)
+ path = os.path.abspath(path)
+ return path
+
+def build_unique_id(options):
+ unique_id = options.unix_socket or str(options.port)
+ # could be full path to the socket, strip everything before the last slash
+ unique_id = unique_id.rsplit('/', 2)[-1]
+ return unique_id
+
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 ('-p', type="int", dest="port",
+ default=DEFAULT_PORT,
+ help="TCP port the rsyslog daemon will listen on")
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)")
+ parser.add_option ('-u', type="string", dest="unix_socket",
+ default=None,
+ help="Unix socket the rsyslog daemon will listen on. Using this option turns off listening for TCP connections.")
+
(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]
+ options.log_root = absolute_path(args[0])
+ if options.unix_socket:
+ options.unix_socket = absolute_path(options.unix_socket)
args = args[1:]
return (options, args)

@@ -126,20 +156,26 @@ def help_and_exit(option, opt, value, parser):
parser.print_help()
sys.exit(0)

-def generate_rsyslog_config(port, directory):
+def generate_rsyslog_config(options, unique_id):
values = {
- "directory" : directory,
- "port" : port
+ "input_directive" : INPUT_TCP_TEMPLATE % {'port' : options.port},
+ "directory" : options.log_root,
+ "subdirectory" : "%FROMHOST-IP%"
}
+
+ if options.unix_socket:
+ values["input_directive"] = INPUT_SOCKET_TEMPLATE % {'socket' : options.unix_socket}
+ values["subdirectory"] = unique_id
+
config = RSYSLOG_TEMPLATE % values
return config

-def pid_location(port):
+def pid_location(unique_id):
# find the target location
name = getpass.getuser()
values = {
"username" : name,
- "port" : port
+ "unique_id" : unique_id
}
location = PID_LOCATION % values
# now make sure the directory exists
@@ -154,9 +190,8 @@ if __name__ == "__main__":
except OptParserError as exc:
exc.parser.error(str(exc))
sys.exit(1)
- directory = os.path.join(os.getcwd(), options.log_root)
- directory = os.path.abspath(directory)
- config = generate_rsyslog_config(options.port, directory)
+ unique_id = build_unique_id(options)
+ config = generate_rsyslog_config(options, unique_id)
if options.output:
options.output = os.path.abspath(options.output)
try:
@@ -166,7 +201,7 @@ if __name__ == "__main__":
print("Can't write into file %s" % options.output, file=sys.stderr)
sys.exit(1)
if options.stdout:
- pid = pid_location(options.port)
+ pid = pid_location(unique_id)
print(HINT % {
"conf" : options.output,
"pid" : pid
--
1.7.1

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