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Deep dives, tutorials and field notes from building and operating cloud-native platforms.

Latest · Deep Dive

Cutting EKS Costs ~40% with Karpenter and Spot

A practical walkthrough of right-sizing a production EKS cluster using Karpenter consolidation and Spot instances — without sacrificing availability.

May 10, 2026 · 8 min Read →
Guide Apr 4, 2026 · 7 min

GitOps in Practice: Progressive Delivery with Argo CD

Why pull-based GitOps beats push-based pipelines for Kubernetes, and how sync waves plus Argo Rollouts give you safe, automated, reversible deployments.

#gitops#argocd#kubernetes
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Tutorial Feb 15, 2026 · 6 min

The Three Pillars of Observability, Wired Together with OpenTelemetry

Logs, metrics and traces stop being silos once they share trace context. A practical mental model for instrumenting microservices with OpenTelemetry.

#observability#opentelemetry#sre
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EHSAN.CLOUD

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Ehsan Ullah · Ahsan Khan

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