Run multiple independent Flask apps in Ubuntu

I spent more time on this and, if I'm starting to understand Apache terminology and configuration a little better, I cannot use virtual hosts for this purpose. VirtualHost sections are intended for serving different host names (multiple domains or subdomains.)

For configuring parallel applications as subdirs I could have used Directory sections instead. I also didn't realize some of the WSGI* directives in the config file could appear more than once. This new knowledge allowed me to produce the following single config file that does what I wanted. So instead of enabling one Apache site for each app, I could enable a single site with the directories configured in it.

# this goes in /etc/apache2/sites-available/<VirtualHost *:80>    ServerName localhost    # logs configuration    ErrorLog ${APACHE_LOG_DIR}/error.log    CustomLog ${APACHE_LOG_DIR}/access.log combined    WSGIDaemonProcess site1 user=myserviceuser group=myserviceuser threads=5 python-home=/var/www/myapps/app1:/var/www/myapps/app1/env/lib/python2.7/site-packages    WSGIScriptAlias /site1 /var/www/myapps/app1/application.wsgi    <Directory /var/www/myapps/app1>        WSGIApplicationGroup site1        WSGIProcessGroup site1        Order deny,allow        Allow from all    </Directory>    WSGIDaemonProcess site2 user=myserviceuser group=myserviceuser threads=5 python-home=/var/www/myapps/app2:/var/www/myapps/app2/env/lib/python2.7/site-packages    WSGIScriptAlias /site2 /var/www/myapps/app2/application.wsgi    <Directory /var/www/myapps/app2>        WSGIApplicationGroup site2        WSGIProcessGroup site2        Order deny,allow        Allow from all    </Directory></VirtualHost>

EDIT:

I later followed Graham Dumpleton's suggestion and removed the activate_this stuff from application.wsgi and changed the WSGIDaemonProcess directive lines to:

WSGIDaemonProcess site1 user=myserviceuser group=myserviceuser threads=5 python-home=/var/www/myapps/app1/env