Practical articles on AI, DevOps, Cloud, Linux, and infrastructure engineering.
A flat VPC is fine until you need to prove who can reach what. Five segmentation patterns that work in AWS without requiring a service mesh.
Container performance problems usually live in the node kernel, not your app. Here is what we tune, why, and how we measure before touching anything.
Blue/green sounds simple until your green cluster has a memory leak and you've already sent 50% of traffic there. The guardrails are what make it safe.
Manage cloud spend with Terraform: cost estimation, tagging, and policy-as-code.
We had four different patch cadences across our fleet and routinely missed CVEs by weeks. The unified workflow that finally caught up.
Harden container images and runtime. Image scanning, minimal base, and supply chain security.
AWS bill grew 40% YoY for two years before we got serious. Tagging, scoped budgets, and a weekly review meeting did 80% of the work.
A team of 30 engineers all editing the same monolithic Ansible repo doesn't work. Here's the role taxonomy and review process that did.
Unify traces, metrics, and logs with OpenTelemetry. Instrumentation, sampling, and backend-agnostic pipelines.
One Terraform state file per environment sounds obvious until you watch a dev plan touch a prod resource. Here's how we actually isolate state and the mistakes we made getting there.
Our CI was 73% green at the worst point. People trusted it less than coin flips. Six things we did to get to 96%, in rough order of impact.
Our base image went from 1.2 GB and 200+ CVEs to 80 MB and 4 CVEs. Most of the work wasn't clever — it was deletion.
