If you’re serious about DevOps, there are some GitHub repositories you simply cannot afford to miss.
After 13 years in the trenches, I have realized that the best resources aren’t necessarily the ones with the most stars, but the ones that teach you how to think, build, and operate systems the right way. I wanted to share this curated list that I’ve personally found invaluable. These repositories act as your comprehensive guide to mastering the DevOps lifecycle, from basic Linux commands to advanced Kubernetes orchestration and AWS cloud architecture.
Here are 9 must-follow repositories packed with real, hands-on DevOps knowledge that you should bookmark right now.
1. The Book of Secret Knowledge
A goldmine of CLI tricks, cheat sheets, and deep DevOps wisdom. This repository is an absolute treasure trove of CLI tools, scripts, and cheat sheets. Whether you are debugging a network issue at 3 AM or looking for the most efficient way to parse logs, this collection of secret knowledge has you covered. It includes tools for OSINT, penetration testing, and general system administration, making it a mandatory bookmark for any serious systems engineer.
2. DevOps Exercises
Hands-on DevOps, Linux, networking & cloud exercises. Theory is great, but practice is what makes you an engineer. This repository is packed with interview questions and practical exercises covering Linux, networking, Python, and cloud infrastructure. It bridges the gap between reading about a concept and actually deploying it, ensuring you are prepared for real-world scenarios and tough technical interviews.
3. AWS DevOps Zero to Hero
Complete AWS + DevOps roadmap with projects. Abhishek Veeramalla’s roadmap is widely considered one of the best structured paths for learning AWS from a DevOps perspective. It takes you from the absolute basics of IAM and EC2 all the way to complex CI/CD pipelines, EKS deployments, and infrastructure as code. The project-based approach ensures you aren’t just memorizing AWS services, but actually building interconnected cloud architectures.
4. Docker Zero to Hero
Learn Docker with practical, beginner-friendly content. Containerization is the bedrock of modern DevOps. This repository breaks down Docker into easily digestible tutorials, starting with simple container runs to advanced Docker Compose setups and multi-stage builds. If you want to understand how to truly isolate environments and optimize your container images for production, this is the place to start.
5. Awesome Kubernetes
Everything you need to learn Kubernetes ecosystem. The Kubernetes ecosystem is vast and constantly changing. Trying to navigate it without a map is a recipe for disaster. This curated list acts as your compass, pointing you toward the best operators, monitoring tools, networking plugins, and security scanners available for k8s. It is an indispensable resource when you are tasked with expanding your cluster’s capabilities.
6. Terraform Zero to Hero
Terraform explained with hands-on examples. Infrastructure as Code (IaC) is non-negotiable in modern cloud environments. This hands-on guide to Terraform explains state management, modules, and providers with extreme clarity. By following along with the practical examples, you will learn how to provision, mutate, and destroy infrastructure predictably and safely.
7. How They DevOps
Understand how companies implement DevOps in production. Ever wondered how Netflix, Spotify, or Uber actually handle their deployments? This repository aggregates engineering blogs and architectural teardowns from top-tier tech companies. It provides invaluable insight into how massive scale is managed in production, giving you ideas and patterns to adapt for your own organizational challenges.
8. System Design Resources
Curated system design interview preparation resources. A DevOps engineer who doesn’t understand system design will struggle to scale applications effectively. This repository offers a curated list of system design resources, architectures, and principles. It helps you think about caching layers, database sharding, load balancing, and overall system resilience-skills that are critical whether you’re interviewing or architecting a new platform.
9. Project Based Learning
Learn by building real-world projects across domains. The fastest way to learn is by doing. This legendary repository aggregates tutorials where you build applications from scratch. From writing your own web server in C to building a bot in Python, stepping outside pure operations and writing code makes you a vastly superior DevOps engineer. It gives you the empathy and knowledge to better support the developers you work with.
Final Thoughts
These repositories have shaped the way I think about infrastructure and automation over the years. Remember, DevOps is not a specific tool-it is a culture and a mindset. Spend time exploring these resources, try building the projects yourself, and you will undoubtedly level up your engineering career. Let’s keep building and learning together.
Related Reading: If you want to dive deeper into system architectures and state management, check out my recent guide on Managing State: Redis vs Cosmos DB.