Member-only story
In this blog, we’ll explore how to utilize a single AWS Application Load Balancer (ALB) to expose multiple Kubernetes services, offering a more cost-effective solution when managing multiple applications in your Kubernetes cluster. By leveraging host-based routing in ALB configurations, we can route traffic to different services using a single load balancer.
Why Use One Load Balancer for Multiple Services? In a typical Kubernetes setup, each service is often assigned its own load balancer, which can become quite expensive, especially when running multiple services in your cluster. A more efficient solution is to utilize a single ALB and configure it to handle traffic for multiple services using path-based or host-based routing rules.
In this tutorial, we’ll walk through the process of setting up a Kubernetes cluster where two services — an Nginx application and a game application — are exposed using a single AWS ALB. We’ll be using Kubernetes Ingress resources to achieve this.
Check out my Youtube video for the demo
Prerequisites:
- Kubernetes cluster (either AWS EKS or any other setup)
kubectlinstalled- AWS CLI configured
- Basic understanding of Kubernetes Ingress and Load Balancers
- Use Github repo from here for the Kubernetes YAML configuration
