Architecture: Docker

You ship a service that works perfectly on your laptop. It hits staging and dies immediately. The stack trace points at a shared library your machine had and the staging box did not. Someone on the team says the words every engineer has heard: "works on my machine." The old fix was a virtual machine. Package the whole operating system, ship the image, run it anywhere. It works, but you are shipping gigabytes of kernel and userland to so… Read More

Architecture: AWS Fargate

You have a containerized service. You want it running in AWS. You create an ECS cluster, write a task definition, and hit deploy. A minute later, your container is up and serving traffic. You never touched a server. That convenience hides a remarkable amount of engineering. Somewhere in AWS, a scheduler decided where your task would run, a microVM was created and booted in milliseconds, a network interface was injected into your VPC, and your con… Read More