Logging config for nova using a pipe or special syslog

logging.conf

[loggers]
keys = root

[handlers]
keys = file, nova_syslog

[formatters]
keys = legacynova

[logger_root]
level = DEBUG
handlers = file

[formatter_legacynova]
class = nova.openstack.common.log.LegacyFormatter

[handler_file]
class = FileHandler
args = ('/var/log/nova/pipe',)
formatter = legacynova

[handler_nova_syslog]
class = logging.handlers.SysLogHandler
args = ('/dev/novalog', logging.handlers.SysLogHandler.LOG_USER)
formatter = legacynova

nova.conf

log_config=/etc/nova/logging.conf
logging_context_format_string=%(asctime)s %(levelname)s %(name)s [%(request_id)s %(user_name)s %(project_name)s] %(instance)s%(message)s  
logging_default_format_string=%(asctime)s %(levelname)s %(name)s [-] %(instance)s%(message)s                                                       
logging_debug_format_suffix=from (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d                                                                                                
logging_exception_prefix=%(asctime)s TRACE %(name)s %(instance)s