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-testi
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+# Online survey creation tool
+
+### Prerequisites
+
+Flask app with MariaDB 
+
+Check requirements.txt
+
+### Installing
+
+Install python packages with pip and preferably in virtual environment:
+```
+virtualenv venv
+source venv/bin/activate
+pip install -r requirements.txt
+``` 
+
+### Deployment
+
+There are multiple deployment options, but one working solution is:
+nginx + gunicorn (with gevent worker) 
+
+Create systemd startup script in '/etc/systemd/system/gunicorn.service'
+
+```
+[Unit]
+Description=Gunicorn instance to serve flask application
+After=network.target
+
+[Service]
+User=nginx
+WorkingDirectory=/srv/rating
+Environment="PATH=/srv/rating/venv/bin"
+ExecStart=/srv/rating/venv/bin/gunicorn run:app -b localhost:8000 -k gevent -w 1
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Run 'systemctl daemon-reload' to reload units.
+
+Enable and start gunicorn service:
+```
+service gunicorn enable
+service gunicorn start
+```
+
+### Logs
+
+Error logs are saved to application folder (/srv/rating/logs/) 
+
+Optionally with journalctl:
+journalctl -u gunicorn.service 
+
+### Restart server after updates
+
+```
+service gunicorn restart
+```
+