Deep dive into cluster networking for Amazon EKS Hybrid Nodes
Containers Blog
This article provides a comprehensive guide to cluster networking for Amazon EKS Hybrid Nodes, exploring various networking configurations and load balancing solutions for integrating on-premises infrastructure with EKS clusters.
- Key networking requirements include:
- Private network connectivity between EKS control plane and hybrid nodes
- Reliable network with 100 Mbps bandwidth and max 200ms latency
- IPv4 RFC-1918 CIDR blocks for nodes and pods
- CNI Considerations:
- Amazon VPC CNI is not compatible with Hybrid Nodes
- Compatible CNIs include Calico and Cilium
- Requires configuring routing for pod CIDRs
- Load Balancing Options:
- MetalLB for on-premises local traffic
- AWS Load Balancer Controller for external access
- Routing Methods Demonstrated:
- BGP Routing with Cilium
- Static Routing with Calico
The article provides detailed walkthrough steps for implementing these networking strategies, helping organizations modernize infrastructure while maintaining operational consistency.
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