Why Option B is Correct:Amazon ECS does not natively process docker-compose.yml files. Instead, the configurations from docker-compose.yml must be converted into ECS-compatible configurations within a task definition. Task definitions are the primary way to specify container configurations in ECS, including service dependencies like databases, caches, and volumes.

Steps to Resolve the Error:

Extract the configurations from the docker-compose.yml file.

Map the dependencies and settings to the appropriate ECS task definition fields.

Deploy the task definition to the ECS cluster.

Why Other Options are Incorrect:

Option A:Docker labels do not directly impact ECS task execution or integrate with ECS service configurations.

Option C:ECS namespaces do not exist as a feature.

Option D:Changing the service type to REPLICA does not resolve the issue of missing service dependency configurations.

AWS Documentation References:

Amazon ECS Task Definitions

Migrating Docker Compose Workloads to ECS