Amazon SQS

Amazon S3 is a cloud storage service from Amazon Web Services. In the cited use, it stores an AWS Lambda application package when the package exceeds the size limit for direct deployment.

Amazon Web Services (AWS) is a cloud computing platform and subsidiary of Amazon that provides on-demand computing resources and services including compute, storage, databases, networking, analytics, machine learning, and developer tools. AWS offers these services to individuals, enterprises, and governments on a pay-as-you-go basis.

RabbitMQ is an open-source messaging and streaming broker for communication between distributed applications and microservices. It supports open protocols including AMQP 1.0 and MQTT 5.0, with client libraries for multiple programming languages. Applications can publish messages to queues or streams, route and filter them to consumers, acknowledge delivery, replicate messages across clusters, and connect deployments using shovels or federation. Common uses include decoupling services, remote procedure calls, event streaming, and IoT messaging; in the cited video, it transports events between booking services. The software is available under the Mozilla Public License 2.0, and Broadcom offers a commercial Tanzu RabbitMQ edition with enterprise support.

Amazon Elastic Container Service (Amazon ECS) is a managed container orchestration service from Amazon Web Services for deploying, running, and scaling Docker-compatible containers, including Java microservices packaged as Docker containers. It supports AWS-hosted tasks and services through launch types including Amazon EC2 and AWS Fargate, and integrates with other AWS services such as IAM, Elastic Load Balancing, and CloudWatch.

Amazon API Gateway is a fully managed API management service from Amazon Web Services for building, publishing, maintaining, monitoring, managing, and securing HTTP, REST, and WebSocket APIs. In the cited agent architecture, it is an external service whose response-time limits motivate handling slow operations asynchronously.