export route53 in BINDish format

export_route53_zone.sh

#!/bin/bash

case $1 in
  --name)
    shift
    zonename="$1"
    hostedzoneid=($(aws route53 list-hosted-zones | jq -r ".HostedZones[] | select(.Name == \"$zonename.\") | .Id" | cut -d'/' -f3))
    if [ ${#hostedzoneid[@]} -eq 0 ]; then
      echo >&2 "Could not find Route53 zone for \"$zonename\", exiting.."
      exit 1
    elif [ ${#hostedzoneid[@]} -gt 1 ]; then
      echo >&2 "Found multiple Route53 zones for \"$zonename\", select one and rerun with explicit id selected"
      echo >&2 "Zone ids: ${hostedzoneid[@]}"
      echo >&2 "For example: $0 --id ${hostedzoneid}"
      exit 1
    fi
  ;;
  --id)
    shift
    hostedzoneid="$1"
  ;;
  *)
  echo >&2 "Usage: $0 [ --name example.org | --id E2F3HDS0RJPBV ]"
  echo >&2 '       pass either "hosted zone name" or "hosted zone id"'
  exit 1
esac

aws route53 list-resource-record-sets --hosted-zone-id $hostedzoneid --output json | jq -jr '.ResourceRecordSets[] | "\(.Name) \t\(.TTL) \t\(.Type) \t \(if .AliasTarget then .AliasTarget.DNSName else .ResourceRecords[].Value end)\n"'