Deploying Kubernetes applications to EKS through CI/CD

In a CI/CD pipeline, the user can use the AWS CLI or SDK to list the latest 5 container images from an ECR repository. They can then prompt the user to select one of the images, and use that image to deploy to an EKS cluster. This can be done by updating the container image in the Kubernetes deployment resource configuration and then using kubectl to apply the changes to the cluster. Ofcourse, this should be automated in your pipeline.

You can use GitLab CI/CD pipeline for EKS Cluster deployments using Terraform or CDK. Before you trigger the pipeline, user can choose which AMI to use for the worker nodes via a runtime variable.

Some useful links: Using Amazon ECR Images with Amazon EKS: https://docs.aws.amazon.com/AmazonECR/latest/userguide/ECR_on_EKS.html

If you are familiar with CDK: https://github.com/aws-quickstart/cdk-eks-blueprints

If you are familiar with Terraform: https://github.com/hashicorp/terraform-provider-aws/tree/main/examples/eks-getting-started

AWS Workshop: https://catalog.workshops.aws/eks-blueprints-terraform/en-US