Build database backup system

[humor4fun]

humor4fun/bash-scripts/blob/master/defectdojo/update_dojo.sh

TODO:

1. Build an S3 bucket to receive mysql data dump backups
2. Write a new script backup_dojo to perform the data dump and upload to S3
3. Add lines to the update_dojo.sh script to perform a backup before update

Additional features:

• Backup the Defect Dojo configuration settings.py
• Backup the nginx configuration /etc/nginx/sites-available/* /etc/nginx/sites-enabled/* /etc/nginx/ssl/*
• Build a routine to restore mysql, dojo settings, nginx from backups