AWS::ECS::TaskDefinition DockerLabels: wildcard certificate and variables

Hello,

1. How about character * for wildcards TLS in cloudformation template please? We have a issue to use TLS with wildcard in DockerLabels:

"traefik.http.routers.traefik.tls.domains[0].main": "*.example.com"

2. We have issue unhashable type: 'dict' in label

!Sub "traefik.http.services.${AppName}.loadbalancer.server.port": !Ref AppContainerPort

This does not work as well:

"!Sub traefik.http.services.${AppName}.loadbalancer.server.port": !Ref AppContainerPort