TurboGears log files and log rotation

The error log is rotated weekly on Sunday. 4 backups are saved.

The access log is not stored since it would be a duplicate of the
Apache logs. It can be enabled if desired.

Had to move the call to daemonize() in ipa-webgui so that the
fork is done before TurboGears is initialized. Otherwise the log
files end up getting closed.

ipa-server/ipa-gui/ipa-webgui

@@ -20,14 +20,24 @@
 import os, sys
 
 def daemonize():
-    pid = os.fork()
+    # fork once so the parent can exit
+    try:
+        pid = os.fork()
+    except OSError, e:
+        raise Exception, "%s [%d]" % (e.strerror, e.errno)
+
     if pid != 0:
         os._exit(0)
+
     # become session leader
     os.setsid()
     
     # fork again to reparent to init
-    pid = os.fork()
+    try:
+        pid = os.fork()
+    except OSError, e:
+        raise Exception, "%s [%d]" % (e.strerror, e.errno)
+
     if pid != 0:
         os._exit(0)
 
@@ -60,6 +70,13 @@ devel = False
 if os.path.exists(os.path.join(os.path.dirname(__file__), "Makefile.am")):
     devel = True
 
+if not devel:
+    try:
+        daemonize()
+    except Exception, e:
+        sys.stderr.write("error becoming daemon: " + str(e))
+        sys.exit(1)
+
 sys.path.append("/usr/share/ipa/")
 
 # this must be after sys.path is changed to work correctly
@@ -83,16 +100,4 @@ else:
 
 from ipagui.controllers import Root
 
-if not devel:
-    try:
-        daemonize()
-    except Exception, e:
-        sys.stderr.write("error becoming daemon: " + str(e))
-        sys.exit(1)
-
 start_server(Root())
-
-
-    
-        
-        

ipa-server/ipa-gui/ipa-webgui.cfg

@@ -64,12 +64,20 @@ format='*(asctime)s *(name)s *(levelname)s *(message)s'
 
 [[handlers]]
 [[[debug_out]]]
-class='StreamHandler'
+# Rotate weekly on Sunday. Keep 4 backups of the log
+class='TimedRotatingFileHandler'
 level='DEBUG'
-args='(sys.stdout,)'
+args="('/var/log/ipa_error.log', 'w6', 1, 4)"
 formatter='full_content'
 
 [[[access_out]]]
+# For example only if one wants to duplicate the access log in TurboGears
+# Rotate weekly on Sunday. Keep 4 backups of the log
+#class='TimedRotatingFileHandler'
+#level='INFO'
+#args="('/var/log/ipa_error.log', 'w6', 1, 4)"
+#formatter='message_only'
+# By default log access to stdout which will go to /dev/null in production
 class='StreamHandler'
 level='INFO'
 args='(sys.stdout,)'