update-ip.sh

#!/usr/bin/env bash

IP=$(curl ifconfig.me)
echo "ip is $IP"

MSG="{
  \"Changes\": [
    {
      \"Action\": \"UPSERT\",
      \"ResourceRecordSet\": {
        \"Name\": \"$RECORD_SET\",
        \"Type\": \"A\",
        \"TTL\": 60,
        \"ResourceRecords\": [
          {
            \"Value\": \"$IP\"
          }
        ]
      }
    }
  ]
}"

echo $MSG
aws route53 change-resource-record-sets --hosted-zone-id "$HOSTED_ZONE" --change-batch "$MSG" | cat
echo "$RECORD_SET set to $IP"