Add elapsed time to apache request log

This will help to easily see how long certain API requests take in
highly loaded system.

Signed-off-by: Balazs Gibizer <gibi@redhat.com>

Author: gibizer

templates/novaapi/config/httpd.conf

@@ -18,8 +18,8 @@ Include conf.modules.d/*.conf
 Include conf.d/*.conf
 {{- end }}
 
-LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
-LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" proxy
+LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %Dμs" combined
+LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %Dμs" proxy
 
 SetEnvIf X-Forwarded-For "^.*\..*\..*\..*" forwarded
 ErrorLog /dev/stderr

templates/novametadata/config/httpd.conf

@@ -18,8 +18,8 @@ Include conf.modules.d/*.conf
 Include conf.d/*.conf
 {{- end }}
 
-LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
-LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" proxy
+LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %Dμs" combined
+LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %Dμs" proxy
 
 SetEnvIf X-Forwarded-For "^.*\..*\..*\..*" forwarded
 ErrorLog /dev/stderr