Merge pull request #327 from Sage-Bionetworks-Workflows/bwmac/live_up…

…grade

Adds Role ARN for ECR Access

templates/nextflow-ecs-task-definition.j2

@@ -183,6 +183,7 @@ Resources:
   TowerTask:
     Type: AWS::ECS::TaskDefinition
     Properties:
+      ExecutionRoleArn: !Sub 'arn:aws:iam::${AWS::AccountId}:role/EcsTaskExecutionRole'
       NetworkMode: bridge
       Volumes:
         - Name: !Ref EfsVolumeName