Open Journal of
Devops engineer

Notes, insights and lessons learned

Behind the Journal

Five years ago, I traded my life as a system admin for the glamorous world of DevOps. Along the way, I took meticulous notes on every tool I encountered. After several years of working at this job, I now have a lot of, yes, you guessed it – lower back pain. That and notes. Lots of notes. This site is where I share these notes in hope they’ll help you navigate the wonderfully chaotic universe of DevOps a little more easily.

Choose Your Path Carefully

Explore the tools and concepts that shape modern infrastructure.

Start with the Basics

Before diving into pipelines and containers, you need a solid foundation. Learn Linux essentials, networking fundamentals, and hardware basics—the building blocks of every DevOps workflow.

Infrastructure as Code

From cloud platforms like AWS to automation tools like Terraform and Ansible, this section covers everything you need to provision, configure, and manage infrastructure the DevOps way.

Containers Made Simple

Explore Docker for containerization, Kubernetes for orchestration, and OpenShift for enterprise deployments. Understand how these tools work together to deliver scalable, reliable systems.

Continuous Integration & Delivery

Learn how to automate builds, tests, and deployments using GitLab pipelines, YAML configurations, and GitOps tools like ArgoCD. Speed and reliability start here.

Automate Everything

Bash for quick fixes, Python for powerful automation—this section shows you how scripting can save time and reduce errors in your DevOps workflows.

Answers to Life, the Universe, and DevOps

(But mostly DevOps.)

Is DevOps difficult?

There’s two schools of thought about that. There’s some people who say it’s difficult, and others who say it’s very difficult.

Which tool should I learn first?

The one you are least afraid of braking.

Do I need to know how to code?

Only if you haven’t heard of LLMs. Just don’t copy directly to production.

How long does it take to become expert DevOps engineer?

Somewhere between “a few months” and “forever.” It’s a journey that matters, not a destination.

Is Kubernetes mandatory?

Not if you enjoy monitoring containers on your own. Just be ready to spend a lot on coffee.

What is the difference between DevOps and SRE?

Same difference as between a turtle and a tortoise. They look similar, move at the same pace and only a few people can confidently explain the distinction.

Is using cloud infrastructure expensive?

It’s surprisingly cheap—unless you forgot to set a budget limit.

Why are containers important?

Because they remove the phrase “It worked on my laptop” from existence.

Open Journal of Devops engineer