playbook: automate kdbox configuration

This is a playbook for kdbox configuration automation. It automates the following tasks :

• Caddy frontend software supply -Webrunner software supply
• Frontend instance request
• Webrunner instance request
• Frontend instance slave request for ERP5
• Port forwarding with socat
• res6t an RADVD installation
• slapos installation
• slapos client configuration

TODO:

• automate SSL Certificate insuance with letsencrypt

• automate ERP5 deployement in webrunner by setting correct parameters to webrunner instantiation

• automate the erp5 URL parameter retrieving from webrunner in role frontend_slave_instance_request

• add periodic cron task to deploy the kdbox with this playbook untill it's sucess