Hmm, let's see, so you've got to know: EC2, ALB, Nginx, Puma, Systemd, then presumably something like Terraform and Ansible to deploy those configs, or write a custom set of bash scripts. And all of that and you're tied to one cloud provider.

Or, instead of reinventing the same wheels for Nth time, I could just use a set of abstractions that work for 99% of network services out there, on any cloud or bare metal. That set of abstractions is k8s.

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