This pattern guides you through the steps for deploying a continuous integration and continuous delivery (CI/CD) pipeline for Java microservices on an existing Amazon Elastic Container Service (Amazon ECS) cluster by using AWS CodeBuild. When the developer commits the changes, the CI/CD pipeline is initiated and the build process starts in CodeBuild. When the build is complete, the artifact is pushed to Amazon Elastic Container Registry (Amazon ECR) and the latest build from Amazon ECR is picked up and pushed to the Amazon ECS service.