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Practical DevOps
notes & guides.
Short, interview-friendly and production-focused articles about cloud, Kubernetes, Terraform, CI/CD and troubleshooting.
01 · KUBERNETES
How Kubernetes schedules a Pod
Understand the scheduler flow, resource requests, taints, tolerations and affinity with a practical mental model.
Read article → 02 · TERRAFORMImplicit vs explicit dependencies in Terraform
Learn how Terraform discovers relationships between resources and when depends_on is actually needed.
Read article → 03 · AZUREAKS upgrade: control plane vs node pool
What changes during an AKS upgrade and how to plan a safer production rollout.
Read article → 04 · CI/CD · AWSGitHub to EKS: a practical CI/CD flow
Source code, build, image scanning, registry, deployment and rollback — step by step.
Read article → 05 · DOCKERReducing Docker image size for Kubernetes
Practical techniques to make images smaller, faster to pull and easier to secure.
Read article → 06 · PRODUCTIONCPU suddenly hits 95% after a release
A structured incident-debugging approach that starts with evidence and avoids guesswork.
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