AWS: describe-reserved-instances

#!/bin/sh

instanceType=t1.micro
region=ap-northeast-1
availabilityZone=${region}b
productDescription=Linux/UNIX
offeringType="Linux Utilization"
duration=$((60*60*24*365))

filters=`cat <<EOS
[
  {
    "Name": "instance-type",
    "Values": ["${instanceType}"]
  },
  {
    "Name": "availability-zone",
    "Values": ["${availabilityZone}"]
  },
  {
    "Name": "duration",
    "Values": ["${duration}"]
  },
  {
    "Name": "product-description",
    "Values": ["${productDescription}"]
  }
]
EOS`

# echo \'$filters\'

echo $filters | xargs -0  aws ec2 describe-reserved-instances \
  --offering-type "${offeringType}" \
  --filters \
| jq '.ReservedInstancesOfferings[].ReservedInstancesOfferringID'