Containers come and go rapidly, which is great for scalable or fast-evolving infrastructure. However, the short life of containers make it more challenging to monitor, leaving many with questions such as: How many containers can you run on a given Amazon EC2 instance type? Which metric should you look at to measure contention? How do you manage fleets of containers at scale? In this session, we'll present the challenges and benefits of running containers at scale, how to use quantitative performance patterns to monitor your infrastructure at this magnitude and complexity, and we'll discuss proven strategies for monitoring your containerized infrastructure on AWS and ECS. Learning Objectives: - Set up the infrastructure to monitor your containers running on AWS - Understand the metrics available and what they mean - Define a strategy to monitor your containers