1. The document discusses service discovery for containerized applications running on AWS, describing why it is important and current common patterns. 2. It outlines that DNS-based service discovery using Route 53 allows container tasks running on ECS to automatically register service details, which are then discoverable via DNS queries. 3. The agenda includes running containers on AWS, why service discovery is needed given the dynamic nature of containers, current approaches like load balancers and key-value stores, and a demo of DNS-based discovery using ECS and Route 53.