Hello everybody! My first attempt at pulumi has failed ;( Was trying to run aws containers tutorial, got this: “Plan apply failed: creating urn😛ulumi:container-quickstart-dev::container-quickstart:☁️service:Service$aws:ecs/service:Service:😛ulumi-nginx: InvalidParameterException: Unable to assume the service linked role. Please verify that the ECS service linked role exists. status code: 400, request id: 9dd78dfb-909b-11e8-afda-af12f1327ba0 “pulumi-nginx-08a04d9" update failed”

Sorry for the trouble! Per https://docs.aws.amazon.com/AmazonECS/latest/developerguide/using-service-linked-roles.html#create-service-linked-role, I believe this shouldn't happen unless the IAM user you were deploying with doesn't have sufficient permissions. Per those same docs, could you try running

aws iam create-service-linked-role --aws-service-name <http://ecs.amazonaws.com|ecs.amazonaws.com>

and see if that unblocks things?