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<<TableOfContents>>



= Why use mod_wsgi? =



See the [[http://modwsgi.org/|mod_wsgi homepage]].



(!) Please note that its "daemon mode" should be the preferred way to use it (and this is the reason to prefer mod_wsgi over mod_python).



= Basic configuring =



 1. Install mod_wsgi

 1. Set up a wiki instance

 1. Edit `wikiconfig.py`

 3. Changes to Apache configuration

 1. Restart Apache



The sample configurations below are for a wiki instance called `mywiki` installed in a directory `/var/www/moin/mywiki` with the main !MoinMoin installation installed in python's default site library path. The wiki appears as URL `/mywiki` under the server - ie `http://my.ser.ver/mywiki`.  You will need to change these to reflect your installation.



== Install mod_wsgi ==



Most people will just add a `mod_wsgi` package to their current operating system installation.  If you are building from source then you should consult the mod_wsgi documentation (it is rather easy if you have a development environment installed).



Make sure you have this line in your apache configuration or mod_wsgi will not work:

{{{

LoadModule wsgi_module modules/mod_wsgi.so

}}}



After this restart Apache and make sure that it starts successfully (also check the the error log).



== Set up a wiki instance ==



This is done as shown in [[HelpOnInstalling/WikiInstanceCreation|WikiInstanceCreation]]. Its recommended to first configure the wiki with cgi and check that it works, then change the configuratin to use mod_wsgi. This allows you be sure that any problems are in the mod_wsgi transition rather than the basic MoinMoin installation.



 1. Copy moin.cgi into your wiki directory

 1. Configure `httpd.conf` as cgi first (Alias shown is for 1.7.0, for other versions please change it):

  {{{

Alias /moin_static170/ "/usr/share/moin/htdocs/"

ScriptAlias /mywiki "/var/www/moin/mywiki/moin.cgi"

}}}



Restart Apache and make test that your wiki works.



== Edit `wikiconfig.py` ==



Make sure you use only absolute paths:

{{{

data_dir = '/var/www/moin/mywiki/data/'

data_underlay_dir = '/var/www/moin/mywiki/underlay/'

}}}



Test that the wiki works after this change.



== Changes to Apache configuration ==



After your wiki is running as cgi script, convert it to run with mod_wsgi. 



If you run your wiki as cgi as we recommended before, remove or comment the !ScriptAlias directive:

{{{

#ScriptAlias /mywiki "/var/www/moin/mywiki/moin.cgi"

}}}



Add this to the same virtualhost definition (Alias shown is for 1.7.0, for other versions please change it):

{{{

    # this is for icons, css, js (and must match url_prefix from wiki config):

    Alias /moin_static170/ /usr/share/moin/htdocs/



    # this is the URL http://servername/mywiki/ you will use later to invoke moin:

    WSGIScriptAlias /mywiki /var/www/moin/mywiki/moin.wsgi



    # in case you want your wiki under the root url (http://servername/), use this instead:

    #Alias /robots.txt /usr/share/moin/htdocs/robots.txt

    #Alias /favicon.ico /usr/share/moin/htdocs/favicon.ico

    #WSGIScriptAlias / /var/www/moin/mywiki/moin.wsgi



    # create some wsgi daemons - use someuser.somegroup same as your data_dir:

    WSGIDaemonProcess moin user=someuser group=somegroup home=/home/someuser processes=5 threads=10 maximum-requests=1000 umask=0007

    # for mod_wsgi >= 2.0 you can append this to have a nice ps aux display:

    # display-name=wsgi-moin



    # use the daemons we defined above to process requests!

    WSGIProcessGroup moin

}}}



Please also have a look into `moin.wsgi` - you maybe have to change some `sys.path.insert` instructions so Python can find the !MoinMoin code and the wiki configuration.



Restart Apache - everything should now work correctly.