High availability and resilience design considerations
The shared responsibility model becomes more complex with Kubernetes. Amazon EKS control plane availability and resilience are managed by Amazon Web Services (AWS). Your organization manages the data plane, which can significantly affect the performance and availability of your microservices applications.
When designing a highly available and resilient application on Amazon EKS, consider the following components:
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The microservices application: its pods and containers
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The workload data plane: Ingress Controller, pod, system components such as the Amazon Virtual Private Cloud (Amazon VPC) Container Network Interface (CNI), service mesh sidecars, and kube-proxy
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The workload-mangement layer: controllers, admission controllers, network policy engines, and persistent data storage for these components
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The Kubernetes control plane
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Infrastructure: nodes, network, and network appliances
For the first three considerations, which refer to components that run within a Kubernetes cluster, this guide covers the following topics:
