Hands-on practice
DevOps in Practice
Hands-on notes on Helm, Kubernetes, and CI/CD — writing a chart from scratch, taking apart real-world ones, and the reusable takeaways left after reading the docs.
Recent notes
Debugging Kubernetes Services and PVCs
When Pods are healthy but services fail, trace empty endpoints, connection errors, and PVCs stuck in Pending with a systematic Kubernetes debugging workflow.
Live GA4 Users on a Static Site
Use a Cloudflare Worker to securely proxy the GA4 Realtime API for live online-user counts. Covers build-time versus runtime data and three implementation pitfalls.
Kubernetes Pod CrashLoopBackOff
A step-by-step workflow for debugging Kubernetes Pod CrashLoopBackOff: from kubectl logs / describe to readiness probes and exit codes.
What these notes cover
Choosing tools
Thinking About Tooling
Not just how to use a tool, but why pick it. Working through the trade-offs behind every tech-selection decision and writing the reasoning down.
Learning from failure
Pitfalls & Retros
Documenting the root cause of every snag — including the “looks fine but actually breaks” details — as signposts for future me.