Clean up All A record alias in target HostedZone.

delete_route53_alias_records.sh

#!/bin/bash -e

# obtains records
hostedZone=xxxxxxxx
records=$(aws route53 list-resource-record-sets --hosted-zone-id "$hostedZone" --query 'ResourceRecordSets[?Type==`A`].[Name,AliasTarget.HostedZoneId,AliasTarget.DNSName]' --output text)

head=$(cat <<EOS
{
  "Comment": "DELETE record",
  "Changes": [
EOS
)

tail=$(cat <<EOS
]
}
EOS
)

contents=$(while IFS= read -r line; do 
  name=$(echo "$line" | cut -f 1)
  hostedZoneId=$(echo "$line" | cut -f 2)
  dnsName=$(echo "$line" | cut -f 3)
  cat <<EOS
  {
    "Action": "DELETE",
    "ResourceRecordSet": {
      "Name": "$name",
      "Type": "A",
      "AliasTarget": {
        "HostedZoneId": "$hostedZoneId",
        "DNSName": "$dnsName",
        "EvaluateTargetHealth": true
      }
    }
  },
EOS
done <<< "$records"
)

# create json
echo "${head}${contents::-1}${tail}" > change_batch_delete.json

# preview json
cat change_batch_delete.json

# delete target dns records
aws route53 change-resource-record-sets --hosted-zone-id "${hostedZone}" --change-batch file://change_batch_delete.json

delete_route53_txt_records.sh

#!/bin/bash -e

# obtains records
hostedZone=xxxxxxxx
records=$(aws route53 list-resource-record-sets --hosted-zone-id "$hostedZone" --query 'ResourceRecordSets[?Type==`TXT`].[Name,TTL,ResourceRecords[0].Value]' --output text)

head=$(cat <<EOS
{
  "Comment": "DELETE record",
  "Changes": [
EOS
)

tail=$(cat <<EOS
]
}
EOS
)

contents=$(while IFS= read -r line; do 
  name=$(echo "$line" | cut -f 1)
  ttl=$(echo "$line" | cut -f 2)
  value=$(echo "$line" | cut -f 3 | sed 's/"/\\"/g')
  cat <<EOS
  {
    "Action": "DELETE",
    "ResourceRecordSet": {
      "Name": "$name",
      "Type": "TXT",
      "TTL": $ttl,
      "ResourceRecords": [{
        "Value": "${value}"
      }]
    }
  },
EOS
done <<< "$records"
)

# create json
echo "${head}${contents::-1}${tail}" > change_batch_delete.json

# preview json
cat change_batch_delete.json

# delete target dns records
aws route53 change-resource-record-sets --hosted-zone-id "${hostedZone}" --change-batch file://change_batch_delete.json