configure flask with apache + vhost

README

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install module wsgi on apache2 (https://pypi.org/project/mod-wsgi/)
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(Install apache develop package)
apt-get install apache2-dev

(install mod_wsgi)
python3 -m pip install mod_wsgi

(execute command and copy content)
mod_wsgi-express module-config

(create a file "wsgi.load" and copy content of command above)
nano /etc/apache2/mods-available/wsgi.load

(enable module)
a2enmod wsgi
systemctl restart apache2


#####################################
create a virtual host with wsgi app
####################################

create a file 'app.wsgi' with content
nano app.wsgi

```
import sys
import os

sys.path.append(os.path.dirname(os.path.abspath(__file__)))

from FlaskApp.app import app as application
```
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Note that I stored this file on a separate folder. 
Storing the wsgi file on the same folder as you Flask app works as well, but is not recommended.
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(create a conf file 'yourdomain.conf' in folder '/etc/apache2/sites-available/')
<VirtualHost *:80>
        ServerName xxxx.xxx
        SetEnv APP_ENV dev
        WSGIScriptAlias / /var/www/xxxxxxxxxxx/app.wsgi
        <Directory /var/www/xxxxxxxxx/api/>
                Order allow,deny
                Allow from all
        </Directory>
</VirtualHost>


enable site with command
a2ensite yourdomain.conf
systemctl reload apache2