Guide Details How to Deploy Production-Grade Microservices on AWS EKS

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A technical guide published on DEV Community outlines the end-to-end deployment of a three-tier polyglot microservices stack — built in Go, Node.js, and Python — on AWS Elastic Kubernetes Service version 1.31. The setup uses Terraform for infrastructure provisioning, ArgoCD with GitHub Actions for GitOps-based continuous delivery, and Prometheus with Grafana for observability. Security is enforced through multi-stage distroless container builds, which reduced image sizes by up to 97%, alongside zero-trust IAM roles and non-root Kubernetes pod configurations. The guide also covers cost optimization using AWS EC2 Spot instances and includes a simulated Sev-1 Redis OOMKill incident with a full post-mortem walkthrough. The architecture is designed to bridge the gap between running microservices in development and operating a hardened, observable platform in production.

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