In a typical Kubernetes setup on AWS EKS (Elastic Kubernetes Service), managing multiple subdomains can get expensive if you rely on the default configuration of the AWS Load Balancer Controller. By…

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Using a single AWS Application Load Balancer (ALB) for multiple subdomains in an EKS cluster can significantly reduce costs and simplify management. This method involves configuring Ingress resources to route traffic for different subdomains through one ALB. Key steps include installing the AWS Load Balancer Controller, creating a security group for controlled access, defining Ingress and service configurations, and applying these configurations using `kubectl`. This setup enhances resource efficiency and security, especially when managing internal tools or services within an EKS cluster.

Optimizing AWS EKS: How to Use One Load Balancer for Multiple Subdomains

Guide to using a single AWS Application Load Balancer (ALB) for multiple subdomains in an EKS cluster.

Optimizing Load Balancer Usage with a Single Load Balancer

Kubernetes Ingress with AWS ALB Ingress Controller | Amazon Web Services

Route application and HTTP traffic with Application Load Balancers

Exposing Kubernetes Applications, Part 1: Service and Ingress Resources | Amazon Web Services

<p>Just to add More in detail of Route 53 and domains AND subdomains #aws <a href="https://medium.com/from-code-to-cloud/master-aws-route-53-a-premium-in-depth-guide-for-aws-50-day-challenge-day-6-e88e630f6b0b" target="_blank" rel="noopener nofollow">https://medium.com/from-code-to-cloud/master-aws-route-53-a-premium-in-depth-guide-for-aws-50-day-challenge-day-6-e88e630f6b0b</a>
A great Piece of work written</p>
