# Deploying dissemin¶

You have two options to run the web server: development or production settings.

## Development settings¶

Simply run ./launch.sh. This uses the default Django server (unsuitable for production) and serves the website locally on the port 8080. Note that the standard port for django-admins runserver-command is _8000_, but this ensures compatibility with the Vagrant installation.

This runs with DEBUG = True, which means that Django will report to the user any internal error in a transparent way. This is useful to debug your installation but should not be used for production as it exposes your internal settings.

## Production settings¶

As any Django website, Dissemin can be served by various web servers. These settings are not specific to dissemin itself so you should refer to the relevant Django documentation.

No matter what web server you use, you need to run python manage.py collectstatic to copy the static files from the git repository to the desired location for your installation (in the example below, /home/dissemin/www/static), as well as python manage.py compilemessages to compile the translation files.

Make sure that your media/ directory is writable by the user under which the application will run (www-data on Debian).

## Self-hosting MathJax¶

Dissemin requires MathJax for rendering LaTeX formatting in the abstracts. Out of the box, Dissemin will use a CDN-hosted version of MathJax. This has the downside of preventing deposit when disabling third-party JS.

An easy solution to this is to self-host MathJax. You can follow the installation instructions from MathJax to get a local copy. Ideally, you should put it in the static directory (under /home/dissemin/www/static/ in the example below).

Note that MathJax consists of many small files which can slow down a lot the built-in Django webserver. Hence, it is better to serve it directly by Apache and avoid having all these files in the papers/static/libs directory of Dissemin.

Once MathJax is downloaded and available by your webserver, you can use the setting MATHJAX_SELFHOST_URL (in dissemin/settings) to specify a location to load MathJax from. In the example below, this would be //dissemin.myuni.edu/static/mathjax/MathJax.js?config=TeX-AMS-MML_HTMLorMML.

## Apache with WSGI¶

Here is a sample VirtualHost, assuming that the root of the Dissemin source code is at /home/dissemin and you use python3.6.:

<VirtualHost *:80>
ServerName dissemin.myuni.edu

### STATIC FILES ###

# Instructions for robots
Alias /robots.txt /home/dissemin/www/static/robots.txt
<Location /robots.txt>
Require all granted
</Location>
# Thumbnails of PDF files uploaded by users
Alias /media/thumbnails/ /home/dissemin/media/thumbnails/
<Directory /home/dissemin/media/thumbnails>
Require all granted
</Directory>
# Logos of the repositories configured on your instance
Alias /media/repository_logos/ /home/dissemin/media/repository_logos/
<Directory /home/dissemin/media/repository_logos>
Require all granted
</Directory>
# Generic static files (CSS, JS, images)
Alias /static/ /home/dissemin/www/static/
<Directory /home/dissemin/www/static>
Require all granted
</Directory>

### WSGI connection ###

# Path to the WSGI application for the website
WSGIScriptAlias / /home/dissemin/dissemin/wsgi.py
# Python path for the application
WSGIDaemonProcess dissemin.myuni.edu python-path=/home/dissemin:/home/dissemin/.virtualenv/lib/python3.6/site-packages

WSGIProcessGroup dissemin.myuni.edu

<Directory /home/dissemin/dissemin>
<Files wsgi.py>
Require all granted
</Files>
</Directory>

### Error handling ###
ErrorDocument 500 /500-error
ErrorDocument 404 /404-error

### Log settings ###
ErrorLog ${APACHE_LOG_DIR}/django-dissemin-myuni.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel debug CustomLog${APACHE_LOG_DIR}/access-dissemin-myuni.log combined
</VirtualHost>


You should only have to change the path to the application and the domain name of the service.

## lighttpd with FastCGI (deprecated)¶

We describe here how to set up the server with lighttpd, a lightweight web server, with FastCGI. This has been deprecated by Django, as support for FastCGI will be discontinued: use WSGI instead.

$HTTP["host"] =~ "^myhostname.com$" {
accesslog.filename   = "/var/log/lighttpd/dissemin-$INSTANCE.log" server.document-root = "$SOURCE_PATH/www/"
$HTTP["url"] =~ "^(?!((/static/)|(/robots\.txt)))" { fastcgi.server = ( "/" => ( "/" => ( "socket" => "/tmp/django-dissemin-$INSTANCE.sock",
"check-local" => "disable",
"fix-root-scriptname" => "enable",
)
),
)
}
alias.url = (
"/static/" => "$SOURCE_PATH/www/static/", "/robots.txt" => "$SOURCE_PATH/www/static/robots.txt",
)
}


where $INSTANCE is the name of your instance and $SOURCE_PATH is the path to the root of the git repository of dissemin.

You can create the .sock file with touch /tmp/django-dissemin-\$INSTANCE.sock.