Amazon ECS Express Mode now supports custom task definitions

Summary

• Express Mode now accepts custom ECS task definitions, enabling reuse of existing configurations and advanced task-level settings.
• Supports advanced features like sidecars, custom health checks, ulimits, Linux runtime settings, and FireLens log routing within Express Mode.
• Task definitions can be associated or updated via Console, CLI, SDKs, or IaC while retaining Express Mode’s simplified deployment experience.