#!/bin/bash

function listRes() {
	aws --region $1 emr list-clusters --query Clusters[].Id --output text | sed 's/\t/\n/g' | while read i; do 
		aws --region $1 emr describe-cluster --cluster-id $i | jq -cr '.Cluster | [.Id, .Name, .ReleaseLabel, .Ec2InstanceAttributes.Ec2AvailabilityZone] | @csv' | tr -d \"
    done
}

export -f listRes

# Generate inventory of ec2 in all regions

echo "ClusterId,ClusterName,ReleaseLabel,AZ"
aws --region=us-east-1 ec2 describe-regions --query Regions[].RegionName --output text | sed -e 's/\t/\n/g' | while read r; do
	sem -j6 listRes $r
done

sem --wait