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Lesson 04: Kubernetes Multi-Cluster Architecture

Multi-Region Platform Engineering: AWS, Kubernetes, and Aurora at Scale​

Episode 04 of 16 | Duration: 18 minutes

Target Audience: Senior platform engineers, SREs, DevOps engineers (5+ years experience)

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What You'll Learn​

  • EKS control plane regional boundaries: Each cluster is isolated, not replicated across regions
  • Why Kubernetes Federation failed: Added complexity without solving data consistency or failover
  • Independent cluster pattern: Run separate clusters per region, treat them as cattle not pets
  • Cross-cluster service discovery: DNS-based (external-dns) vs service mesh (Istio) trade-offs
  • Cost reality: N clusters = N control planes, multiplicative infrastructure costs

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