Adjust console logging format when running under systemd

tuned.service

@@ -9,7 +9,7 @@ Documentation=man:tuned(8) man:tuned.conf(5) man:tuned-adm(8)
 Type=dbus
 PIDFile=/run/tuned/tuned.pid
 BusName=com.redhat.tuned
-ExecStart=/usr/sbin/tuned -l -P
+ExecStart=/usr/sbin/tuned -P
 
 [Install]
 WantedBy=multi-user.target

tuned/consts.py

@@ -241,6 +241,17 @@
 		"console": LOG_LEVEL_CONSOLE,
 		"none": None,
 		}
+def syslog_priority(levelno):
+	"""
+	Convert sparse numeric python logging level to syslog priority.
+	"""
+	if	levelno <= logging.DEBUG:	return 7	# debug
+	elif	levelno <= logging.INFO:	return 6	# info
+	elif	levelno == LOG_LEVEL_CONSOLE:	return 5	# notice
+	elif	levelno <= logging.WARNING:	return 4	# warning
+	elif	levelno <= logging.ERROR:	return 3	# err
+	elif	levelno <= logging.CRITICAL:	return 2	# crit
+	else:	return 1	# alert
 
 # number of retries when waiting for device initialization
 HOTPLUG_WAIT_FOR_DEV_INIT_RETRIES = 100

tuned/logs.py

@@ -88,6 +88,7 @@ def get():
 class TunedLogger(logging.getLoggerClass()):
 	"""Custom TuneD daemon logger class."""
 	_formatter = logging.Formatter("%(asctime)s %(levelname)-8s %(name)s: %(message)s")
+	_formatter_journal = logging.Formatter("<%(priority)d>%(name)s: %(message)s")
 	_console_handler = None
 	_file_handler = None
 
@@ -99,6 +100,11 @@ def __init__(self, *args, **kwargs):
 	def console(self, msg, *args, **kwargs):
 		self.log(consts.LOG_LEVEL_CONSOLE, msg, *args, **kwargs)
 
+	def makeRecord(self, name, level, fn, lno, msg, args, exc_info, func=None, extra=None, sinfo=None):
+		extra = extra or {}
+		extra["priority"] = consts.syslog_priority(level)
+		return super(TunedLogger, self).makeRecord(name, level, fn, lno, msg, args, exc_info, func, extra, sinfo)
+
 	def switch_to_console(self):
 		self._setup_console_handler()
 		self.remove_all_handlers()
@@ -116,13 +122,25 @@ def remove_all_handlers(self):
 		for handler in _handlers:
 			self.removeHandler(handler)
 
+	@classmethod
+	def _detect_systemd_journal_stream(cls):
+		"""
+		Returns True iff systemd tells us we are running with
+		stdout/stderr connected to the journal.
+		"""
+		return os.environ.get("JOURNAL_STREAM", "") != ""
+
 	@classmethod
 	def _setup_console_handler(cls):
 		if cls._console_handler is not None:
 			return
 
 		cls._console_handler = logging.StreamHandler()
-		cls._console_handler.setFormatter(cls._formatter)
+		if cls._detect_systemd_journal_stream():
+			fmt = cls._formatter_journal
+		else:
+			fmt = cls._formatter
+		cls._console_handler.setFormatter(fmt)
 
 	@classmethod
 	def _setup_file_handler(cls, filename, maxBytes, backupCount):

tuned/ppd/tuned-ppd.service

@@ -8,7 +8,7 @@ Before=multi-user.target display-manager.target
 Type=dbus
 BusName=org.freedesktop.UPower.PowerProfiles
 BusName=net.hadess.PowerProfiles
-ExecStart=/usr/sbin/tuned-ppd -l
+ExecStart=/usr/sbin/tuned-ppd
 
 [Install]
 WantedBy=graphical.target