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Revision as of 19:27, 19 January 2013 by Lmacken (talk | contribs) (Minor tweak to test the mediawiki fedmsg plug)

Best Practices for Fedora Infrastructure Apps

Coding style

Logging to syslog

Most of our apps use the standard Python logging module, which usually ends up logging to /var/log/httpd/error_log on the local machine.

To have your app logs shipped to our central logging server, you can configure the SysLogHandler like so:

[logging]                                                                                                                                                             
                                                                                                                                                                          
[[handlers]]                                                                                                                                                          
                                                                                                                                                                         
[[[syslog_out]]]                                                                                                                                                      
class='handlers.SysLogHandler'                                                                                                                                        
args="('/dev/log', handlers.SysLogHandler.LOG_LOCAL4,)"                                                                                                               
formatter='message_only'                                                                                                                                              
                                                                                                                                                                          
[[loggers]]                                                                                                                                                           
                                                                                                                                                                          
[[[bodhi]]]                                                                                                                                                           
level='DEBUG'                                                                                                                                                         
qualname='bodhi'                                                                                                                                                      
handlers=['syslog_out']                                                                                                                                               
propagate=0                                                                                                                                                           

The app logs will then appear in /var/log/hosts/<HOST>/<YEAR>/<MONTH>/<DAY>/apps.log as well as the merged log /var/log/merged/apps.log.