MaaS http config generates warnings about missing /home/maas

[John A Meinel]

When running in Daemon mode, Apache defaults to running the wsgi daemon in the home directory of the user it is running them as.
By default we do not create /home/maas (because we explicitly refuse a login shell, we don't need a home dir).

http://code.google.com/p/modwsgi/wiki/ConfigurationDirectives#WSGIDaemonProcess

The error log contains messages like:
[Tue Oct 23 13:14:23 2012] [alert] (2)No such file or directory: mod_wsgi (pid=4393): Unable to change working directory to '/home/maas'

The simple fix is to update maas-httpd.conf to have:
WSGIDaemonProcess maas user=maas group=maas processes=2 threads=1 display-name=%{GROUP} home=/

Which will always work since you have a '/' for Apache to chdir to.

This doesn't seem to prevent the service from running, it just generates noise in the /var/log/apache2/error.log