I still use Capistrano. In fact, I like Capistrano so much that I have full Load Balancing, Auto-Scaling, and End-to-End encryption enabled for my projects on AWS via the elbas gem.

My primary use case for this is PCI Compliance. While PCI DSS and/or HIPAA do not specifically rule out Docker, the principle of isolation leans heavily twoard the principle that web hosts must be running on a private virtual machine.

This rules out almost all docker based-PaaS (including Fly.io, Render.com, AWS App Runner, and Digital Ocean), as these run your containers on general Docker hosts. In fact, the only PaaS provider that I can find advertising PCI compliance is Heroku, which now charges +$1800/month plus for Heroku Private to achieve it.

I would love to share my configuration with anyone that needs it.