Deploying the AWS ALB Ingress Controller on an Amazon EKS cluster lets teams expose containerized services to the internet through managed Application Load Balancers. The AWS Load Balancer Controller watches Kubernetes Ingress objects and automatically provisions ELBs that route traffic to pod groups. This streamlines traffic management for cloud‑native apps.

To get the controller running, operators first create an IAM policy that grants the necessary API permissions, then attach it to a service account via eksctl. Enabling the OIDC provider lets the cluster authenticate the controller. Finally, a Helm v3 chart installs the controller with cluster‑specific settings and optional ACM integration.

After installation, a sample 2048 game is deployed to verify the setup. Applying the provided YAML creates an Ingress that triggers an ALB; the controller assigns a DNS name and security groups. Operators then request an ACM certificate, add Route 53 records, and confirm the application is reachable.

Monitoring the controller’s health with Prometheus and Grafana dashboards helps spot misconfigurations early. The SOP also recommends automating IAM role creation and ingress annotations through IaC tools. As teams scale, keeping the controller and certificates up to date becomes critical for uninterrupted service delivery.