This document discusses migrating workloads across clouds using Docker containers. It notes that workloads may be migrated to manage capacity utilization through cloud bursting, provide disaster recovery on a secondary cloud site, or move across vendors for other requirements. There are two main types of workload migrations - at the individual application level which requires manual configuration and data migration, and at the image level where different image formats can be difficult to convert. The key steps for migration are to create and register base images, configure networking to maintain configurations and port redirection between source and destination, and migrate data volumes either by copying across environments or sharing as volumes. Migrating with Docker provides continued cloud benefits like instant resource provisioning, high availability scaling, and automated configuration.