Containerized applications, especially those using modern micro-service architectural patterns, are often robust to interruption and unexpected termination of individual containers. For this reason, containerized applications are a good fit for EC2 Spot and Fargate Spot. With minimal modifications, many containerized applications can run some or even all of their containers as-is on Spot at substantially lower cost. In this session we discuss the design decisions and best practices for utilizing EC2 Spot and Fargate Spot with modern containerized applications.