Whether the cluster is running on the cloud?
This function will check the instances in the ECS cluster defined by
provider$clusterName and find if there is any instance that has the same job queue
name as .getJobQueueName(cluster)
# S4 method for ECSFargateProvider
dockerClusterExists(provider, cluster, verbose = 0L)S4 CloudProvider object. The service provider.
S4 DockerCluster object.
Integer. The verbose level, default 1.
A logical value