❯ devopsindex --learn kubernetes,databases,networking,system-design
A reference built like the systems it teaches: 42 live simulators you can break on purpose, 1428 knowledge checks, across 19 sections — Kubernetes, Linux, Docker, AWS, GCP, CI/CD, SRE and more.
Color Guide — Learning Tiers
Foundation (Linux · Networking · Docker · Kubernetes) regardless of experience level — they establish the mental models everything else builds on. Move to Core (CI/CD · Infrastructure as Code · AWS · GCP) once comfortable with containers and K8s basics. Advanced (Monitoring · Git · Advanced · AI Infrastructure) and Specialist (MLOps · Database Internals · Databases on Kubernetes · On-Prem VM Setup · System Design · SRE & Debugging · Coding Practice) sections assume you're operating production systems.
📚 Recommended Learning Path
Start here if you're new to DevOps / joining as a junior engineer. Focus on understanding how things work before optimising them.