Wait for ECS deployment

wait_for_deployment.sh

#!/bin/bash

count=0
while `aws ecs describe-services --cluster ${CLUSTER_NAME} --services ${SERVICE_NAME} --region ${AWS_REGION} | \
    jq -r '.services[].deployments[] | .status' | grep ACTIVE 2>&1 > /dev/null`
do
    if ! (( count % 3 )); then
    echo "$count: Waiting for deployment task to finish";
    fi
    let "count=count+1"
    sleep 10;
done