Developer to DevOps Roadmap: What to Learn First
Moving from writing code to running it in production is a real shift. Here's the order that actually works — and the trap most developers fall into first.
If you already write code and want to move toward DevOps, you have a huge head start — you understand the thing being deployed. But the temptation is to jump straight to the shiny tools (Kubernetes, Terraform, a cloud console) and skip the part that makes them make sense.
Start with Linux, not the cloud
Almost everything in DevOps runs on Linux. Before any orchestration tool, get fluent on the command line: files and permissions, processes, SSH, reading logs, editing config. This is the layer every other tool sits on, and it's the one developers most often skip.
If you can't SSH into a box, find why a service died, and restart it, no amount of YAML will save you.
Then: containers
Once Linux feels natural, containers finally make sense — they're just isolated Linux processes. Learn Docker properly: images, volumes, networking, and Compose for running an app with its database.
Then: a web server and HTTPS
Put a reverse proxy (Nginx) in front of your app, terminate TLS, and serve it over HTTPS. This is the bridge from "runs on my machine" to "runs on the internet."
Only then: cloud and pipelines
People start here. It's the wrong end. Once the fundamentals are solid, a cloud server is just a remote Linux box, and CI/CD is just automating commands you already run by hand.
The order, in one line
Linux → Docker → Nginx/HTTPS → cloud & CI/CD. Resist starting with the tool that has the coolest logo. Depth at the bottom of the stack makes everything above it easy.
Stop reading, start building
This pairs with a hands-on BytExplorer course — do it on your own machine and actually keep the skill.