A new feature has been introduced to enable the random allocation of ECS instances across multiple availability zones (AZs). Designed to streamline large-scale batch deployments, this feature ensures optimal distribution across all AZs, reducing the risk of capacity constraints in a single zone.
Available through both the ECS Console and ECS API, this functionality supports all virtualized ECS instance types, including GPU-accelerated instances, offering greater flexibility and efficiency for your deployments.
More details are available in the Documentation and API.
Our latest TerraForm provider is also supporting this new feature since version v1.36.25.