Explore the challenges and solutions of containerizing legacy applications in this keynote presentation from Devoxx. Dive into the complexities of building a centralized Docker platform for a rapidly growing company with diverse products across multiple AWS accounts. Learn about the ambitious goals of achieving high container density on large AWS instances while reducing operational costs. Discover the issues faced when running over 600 containers of various types on a single node and how Kubernetes integrates into this ecosystem. Gain insights into troubleshooting slow startups, implementing recovery strategies, and managing persistent connections. Walk away with key takeaways on building and maintaining a robust, scalable containerized infrastructure for legacy applications.