├── .gitignore ├── LICENSE ├── NOTICE.txt ├── README.md ├── blob.json ├── lambda_function.py ├── lookup_rdtype.py ├── mirror-dns-policy.json ├── mirror-dns-trust.json └── requirements.txt /.gitignore: -------------------------------------------------------------------------------- 1 | # Items specific to this project 2 | dns/ 3 | event.json 4 | *.zip 5 | 6 | # Byte-compiled / optimized / DLL files 7 | __pycache__/ 8 | *.py[cod] 9 | *$py.class 10 | 11 | # C extensions 12 | *.so 13 | 14 | # Distribution / packaging 15 | .Python 16 | env/ 17 | build/ 18 | develop-eggs/ 19 | dist/ 20 | downloads/ 21 | eggs/ 22 | .eggs/ 23 | lib/ 24 | lib64/ 25 | parts/ 26 | sdist/ 27 | var/ 28 | *.egg-info/ 29 | .installed.cfg 30 | *.egg 31 | 32 | # PyInstaller 33 | # Usually these files are written by a python script from a template 34 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 35 | *.manifest 36 | *.spec 37 | 38 | # Installer logs 39 | pip-log.txt 40 | pip-delete-this-directory.txt 41 | 42 | # OS X Stuff 43 | .DS_Store 44 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. For the purposes of this definition, 18 | "control" means (i) the power, direct or indirect, to cause the 19 | direction or management of such entity, whether by contract or 20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 21 | outstanding shares, or (iii) beneficial ownership of such entity. 22 | 23 | "You" (or "Your") shall mean an individual or Legal Entity 24 | exercising permissions granted by this License. 25 | 26 | "Source" form shall mean the preferred form for making modifications, 27 | including but not limited to software source code, documentation 28 | source, and configuration files. 29 | 30 | "Object" form shall mean any form resulting from mechanical 31 | transformation or translation of a Source form, including but 32 | not limited to compiled object code, generated documentation, 33 | and conversions to other media types. 34 | 35 | "Work" shall mean the work of authorship, whether in Source or 36 | Object form, made available under the License, as indicated by a 37 | copyright notice that is included in or attached to the work 38 | (an example is provided in the Appendix below). 39 | 40 | "Derivative Works" shall mean any work, whether in Source or Object 41 | form, that is based on (or derived from) the Work and for which the 42 | editorial revisions, annotations, elaborations, or other modifications 43 | represent, as a whole, an original work of authorship. For the purposes 44 | of this License, Derivative Works shall not include works that remain 45 | separable from, or merely link (or bind by name) to the interfaces of, 46 | the Work and Derivative Works thereof. 47 | 48 | "Contribution" shall mean any work of authorship, including 49 | the original version of the Work and any modifications or additions 50 | to that Work or Derivative Works thereof, that is intentionally 51 | submitted to Licensor for inclusion in the Work by the copyright owner 52 | or by an individual or Legal Entity authorized to submit on behalf of 53 | the copyright owner. For the purposes of this definition, "submitted" 54 | means any form of electronic, verbal, or written communication sent 55 | to the Licensor or its representatives, including but not limited to 56 | communication on electronic mailing lists, source code control systems, 57 | and issue tracking systems that are managed by, or on behalf of, the 58 | Licensor for the purpose of discussing and improving the Work, but 59 | excluding communication that is conspicuously marked or otherwise 60 | designated in writing by the copyright owner as "Not a Contribution." 61 | 62 | "Contributor" shall mean Licensor and any individual or Legal Entity 63 | on behalf of whom a Contribution has been received by Licensor and 64 | subsequently incorporated within the Work. 65 | 66 | 2. Grant of Copyright License. Subject to the terms and conditions of 67 | this License, each Contributor hereby grants to You a perpetual, 68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 69 | copyright license to reproduce, prepare Derivative Works of, 70 | publicly display, publicly perform, sublicense, and distribute the 71 | Work and such Derivative Works in Source or Object form. 72 | 73 | 3. Grant of Patent License. Subject to the terms and conditions of 74 | this License, each Contributor hereby grants to You a perpetual, 75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 76 | (except as stated in this section) patent license to make, have made, 77 | use, offer to sell, sell, import, and otherwise transfer the Work, 78 | where such license applies only to those patent claims licensable 79 | by such Contributor that are necessarily infringed by their 80 | Contribution(s) alone or by combination of their Contribution(s) 81 | with the Work to which such Contribution(s) was submitted. If You 82 | institute patent litigation against any entity (including a 83 | cross-claim or counterclaim in a lawsuit) alleging that the Work 84 | or a Contribution incorporated within the Work constitutes direct 85 | or contributory patent infringement, then any patent licenses 86 | granted to You under this License for that Work shall terminate 87 | as of the date such litigation is filed. 88 | 89 | 4. Redistribution. You may reproduce and distribute copies of the 90 | Work or Derivative Works thereof in any medium, with or without 91 | modifications, and in Source or Object form, provided that You 92 | meet the following conditions: 93 | 94 | (a) You must give any other recipients of the Work or 95 | Derivative Works a copy of this License; and 96 | 97 | (b) You must cause any modified files to carry prominent notices 98 | stating that You changed the files; and 99 | 100 | (c) You must retain, in the Source form of any Derivative Works 101 | that You distribute, all copyright, patent, trademark, and 102 | attribution notices from the Source form of the Work, 103 | excluding those notices that do not pertain to any part of 104 | the Derivative Works; and 105 | 106 | (d) If the Work includes a "NOTICE" text file as part of its 107 | distribution, then any Derivative Works that You distribute must 108 | include a readable copy of the attribution notices contained 109 | within such NOTICE file, excluding those notices that do not 110 | pertain to any part of the Derivative Works, in at least one 111 | of the following places: within a NOTICE text file distributed 112 | as part of the Derivative Works; within the Source form or 113 | documentation, if provided along with the Derivative Works; or, 114 | within a display generated by the Derivative Works, if and 115 | wherever such third-party notices normally appear. The contents 116 | of the NOTICE file are for informational purposes only and 117 | do not modify the License. You may add Your own attribution 118 | notices within Derivative Works that You distribute, alongside 119 | or as an addendum to the NOTICE text from the Work, provided 120 | that such additional attribution notices cannot be construed 121 | as modifying the License. 122 | 123 | You may add Your own copyright statement to Your modifications and 124 | may provide additional or different license terms and conditions 125 | for use, reproduction, or distribution of Your modifications, or 126 | for any such Derivative Works as a whole, provided Your use, 127 | reproduction, and distribution of the Work otherwise complies with 128 | the conditions stated in this License. 129 | 130 | 5. Submission of Contributions. Unless You explicitly state otherwise, 131 | any Contribution intentionally submitted for inclusion in the Work 132 | by You to the Licensor shall be under the terms and conditions of 133 | this License, without any additional terms or conditions. 134 | Notwithstanding the above, nothing herein shall supersede or modify 135 | the terms of any separate license agreement you may have executed 136 | with Licensor regarding such Contributions. 137 | 138 | 6. Trademarks. This License does not grant permission to use the trade 139 | names, trademarks, service marks, or product names of the Licensor, 140 | except as required for reasonable and customary use in describing the 141 | origin of the Work and reproducing the content of the NOTICE file. 142 | 143 | 7. Disclaimer of Warranty. Unless required by applicable law or 144 | agreed to in writing, Licensor provides the Work (and each 145 | Contributor provides its Contributions) on an "AS IS" BASIS, 146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 147 | implied, including, without limitation, any warranties or conditions 148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 149 | PARTICULAR PURPOSE. You are solely responsible for determining the 150 | appropriateness of using or redistributing the Work and assume any 151 | risks associated with Your exercise of permissions under this License. 152 | 153 | 8. Limitation of Liability. In no event and under no legal theory, 154 | whether in tort (including negligence), contract, or otherwise, 155 | unless required by applicable law (such as deliberate and grossly 156 | negligent acts) or agreed to in writing, shall any Contributor be 157 | liable to You for damages, including any direct, indirect, special, 158 | incidental, or consequential damages of any character arising as a 159 | result of this License or out of the use or inability to use the 160 | Work (including but not limited to damages for loss of goodwill, 161 | work stoppage, computer failure or malfunction, or any and all 162 | other commercial damages or losses), even if such Contributor 163 | has been advised of the possibility of such damages. 164 | 165 | 9. Accepting Warranty or Additional Liability. While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | 178 | APPENDIX: How to apply the Apache License to your work. 179 | 180 | To apply the Apache License to your work, attach the following 181 | boilerplate notice, with the fields enclosed by brackets "{}" 182 | replaced with your own identifying information. (Don't include 183 | the brackets!) The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /NOTICE.txt: -------------------------------------------------------------------------------- 1 | aws-lambda-mirror-dns-function 2 | Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. 3 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Provides AWS Lambda function to mirror DNS zone from on-premises DNS server to Route 53 private hosted zone. See https://aws.amazon.com/blogs/compute/powering-secondary-dns-in-a-vpc-using-aws-lambda-and-amazon-route-53-private-hosted-zones/ for more details. 2 | -------------------------------------------------------------------------------- /blob.json: -------------------------------------------------------------------------------- 1 | [{ 2 | "Id": "mydomain.com", 3 | "Arn": "arn: "", 4 | "Input": "{\"Domain\": \"mydomain.com\",\"MasterDns\": \"10.0.0.1\",\"ZoneId\": \"AA11BB22CC33DD\",\"IgnoreTTL\": \"False\",\"ZoneSerial\": \"\"}" 5 | }] 6 | -------------------------------------------------------------------------------- /lambda_function.py: -------------------------------------------------------------------------------- 1 | # Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. 2 | # 3 | # Licensed under the Apache License, Version 2.0 (the "License"). You may not 4 | # use this file except in compliance with the License. A copy of the License is 5 | # located at 6 | # http://aws.amazon.com/apache2.0/ 7 | # 8 | # or in the "license" file accompanying this file. This file is distributed on 9 | # an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 10 | # express or implied. See the License for the specific language governing 11 | # permissions and limitations under the License. 12 | 13 | # -*- coding: utf-8 -*- 14 | # 15 | # lambda_function.py 16 | # 17 | # AWS Lambda function to mirror an on-premises DNS to Route 53 private hosted zone 18 | # Supports both forward and reverse zones for replications to Route 53. 19 | 20 | # These imports are bundled local to the lambda function 21 | import dns.query 22 | import dns.zone 23 | import lookup_rdtype 24 | from dns.rdataclass import * 25 | from dns.rdatatype import * 26 | 27 | # libraries that are available on Lambda 28 | import os 29 | import sys 30 | import boto3 31 | 32 | # If you need to use a proxy server to access the Internet then hard code it 33 | # the details below, otherwise comment out or remove. 34 | #os.environ["http_proxy"] = "10.10.10.10:3128" # My on-premises proxy server 35 | #os.environ["https_proxy"] = "10.10.10.10:3128" 36 | #os.environ["no_proxy"] = "169.254.169.254" # Don't proxy for meta-data service as Lambda needs to get IAM credentials 37 | 38 | # setup the boto3 client to talk to AWS APIs 39 | route53 = boto3.client('route53') 40 | 41 | 42 | # Function to create, update, delete records in Route 53 43 | def update_resource_record(zone_id, host_name, hosted_zone_name, rectype, changerec, ttl, action): 44 | if not (rectype == 'NS' and host_name == '@'): 45 | print 'Updating as %s for %s record %s TTL %s in zone %s with %s ' % ( 46 | action, rectype, host_name, ttl, hosted_zone_name, changerec) 47 | if rectype != 'SOA': 48 | if host_name == '@': 49 | host_name = '' 50 | elif host_name[-1] != '.': 51 | host_name += '.' 52 | # Make Route 53 change record set API call 53 | dns_changes = { 54 | 'Comment': 'Managed by Lambda Mirror DNS', 55 | 'Changes': [ 56 | { 57 | 'Action': action, 58 | 'ResourceRecordSet': { 59 | 'Name': host_name + hosted_zone_name, 60 | 'Type': rectype, 61 | 'ResourceRecords': [], 62 | 'TTL': ttl 63 | } 64 | } 65 | ] 66 | } 67 | 68 | 69 | for value in changerec: # Build the recordset 70 | if (rectype != 'CNAME' and rectype != 'SRV' and rectype != 'MX' and rectype!= 'NS') or (str(value)[-1] == '.'): 71 | dns_changes['Changes'][0]['ResourceRecordSet']['ResourceRecords'].append({'Value': str(value)}) 72 | else: 73 | dns_changes['Changes'][0]['ResourceRecordSet']['ResourceRecords'].append({'Value': str(value) + '.' + hosted_zone_name + '.'}) 74 | 75 | try: # Submit API request to Route 53 76 | route53.change_resource_record_sets(HostedZoneId=zone_id, ChangeBatch=dns_changes) 77 | except BaseException as e: 78 | print e 79 | sys.exit('ERROR: Unable to update zone %s' % hosted_zone_name) 80 | return True 81 | 82 | 83 | # Perform a diff against the two zones and return difference set 84 | def diff_zones(zone1, zone2, ignore_ttl): 85 | differences = [] 86 | for node in zone1: # Process delete for records which are not in the new zone 87 | node1 = zone1.get_node(node) 88 | node2 = zone2.get_node(node) 89 | if not node2: 90 | for record1 in node1: 91 | changerec = [] 92 | for value1 in record1: 93 | changerec.append(value1) 94 | change = (str(node), record1.rdtype, changerec, record1.ttl, 'DELETE') 95 | if change not in differences: 96 | differences.append(change) 97 | else: 98 | for record1 in node1: 99 | record2 = node2.get_rdataset(record1.rdclass, record1.rdtype) 100 | if record1 != record2: # update record to new zone 101 | changerec = [] 102 | if record2: 103 | action = 'UPSERT' 104 | for value2 in record2: 105 | changerec.append(value2) 106 | else: 107 | action = 'DELETE' 108 | for value1 in record1: 109 | changerec.append(value1) 110 | change = (str(node), record1.rdtype, changerec, record1.ttl, action) 111 | if change and change not in differences: 112 | differences.append(change) 113 | 114 | for node in zone2: # Process records in master zone 115 | node1 = zone1.get_node(node) 116 | node2 = zone2.get_node(node) 117 | if not node1: # Entry doesn't exist, lets create it 118 | for record2 in node2: 119 | changerec = [] 120 | for value2 in record2: 121 | changerec.append(value2) 122 | change = (str(node), record2.rdtype, changerec, record2.ttl, 'CREATE') 123 | if change and change not in differences: 124 | differences.append(change) 125 | 126 | else: # Check for updates to record for existing entries 127 | for record2 in node2: 128 | record1 = node1.get_rdataset(record2.rdclass, record2.rdtype) 129 | if record2.rdtype == dns.rdatatype.SOA: 130 | continue 131 | elif not record1: # Create new record 132 | changerec = [] 133 | for value2 in record2: 134 | changerec.append(value2) 135 | change = (str(node), record2.rdtype, changerec, record2.ttl, 'UPSERT') 136 | if change and change not in differences: 137 | differences.append(change) 138 | elif record1 != record2: # update record to new zone 139 | changerec = [] 140 | for value2 in record2: 141 | changerec.append(value2) 142 | change = (str(node), record2.rdtype, changerec, record2.ttl, 'UPSERT') 143 | if change and change not in differences: 144 | differences.append(change) 145 | 146 | if record2.rdtype == dns.rdatatype.SOA or not record1: 147 | continue 148 | elif not ignore_ttl and record2.ttl != record1.ttl: # Check if the TTL has been updated 149 | changerec = [] 150 | for value2 in record2: 151 | changerec.append(value2) 152 | change = (str(node), record2.rdtype, changerec, record2.ttl, 'UPSERT') 153 | if change and change not in differences: 154 | differences.append(change) 155 | elif record2.ttl != record1.ttl: 156 | print 'Ignoring TTL update for %s' % node 157 | 158 | return differences 159 | 160 | 161 | # Main Handler for lambda function 162 | def lambda_handler(event, context): 163 | # Setup configuration based on JSON formatted event data 164 | try: 165 | domain_name = event['Domain'] 166 | master_ip = event['MasterDns'] 167 | route53_zone_id = event['ZoneId'] 168 | if event['IgnoreTTL'] == 'True': 169 | ignore_ttl = True # Ignore TTL changes in records 170 | else: 171 | ignore_ttl = False # Update records even if the change is just the TTL 172 | except BaseException as e: 173 | print 'Error in setting up the environment, exiting now (%s) ' % e 174 | sys.exit('ERROR: check JSON file is complete:', event) 175 | 176 | # Transfer the master zone file from the DNS server via AXFR 177 | print 'Transferring zone %s from server %s ' % (domain_name, master_ip) 178 | try: 179 | master_zone = dns.zone.from_xfr(dns.query.xfr(master_ip, domain_name)) 180 | except BaseException as e: 181 | print 'Problem transferring zone' 182 | print e 183 | sys.exit('ERROR: Unable to retrieve zone %s from %s' % (domain_name, master_ip)) 184 | 185 | soa = master_zone.get_rdataset('@', 'SOA') 186 | serial = soa[0].serial # What's the current zone version on-prem 187 | 188 | # Read the zone from Route 53 via API and populate into zone object 189 | vpc_zone = dns.zone.Zone(origin=domain_name) 190 | print 'Getting VPC SOA serial from Route 53' # Get the SOA from Route 53 by API to avoid getting stale records 191 | try: 192 | vpc_recordset = route53.list_resource_record_sets(HostedZoneId=route53_zone_id)['ResourceRecordSets'] 193 | for record in vpc_recordset: 194 | # Change the record name so that it doesn't have the domain name appended 195 | recordname = record['Name'].replace(domain_name + '.', '') 196 | if recordname == '': 197 | recordname = '@' 198 | else: 199 | recordname = recordname.rstrip('.') 200 | rdataset = vpc_zone.find_rdataset(recordname, rdtype=str(record['Type']), create=True) 201 | for value in record['ResourceRecords']: 202 | rdata = dns.rdata.from_text(1, rdataset.rdtype, value['Value'].replace(domain_name + '.', '')) 203 | rdataset.add(rdata, ttl=int(record['TTL'])) 204 | except BaseException as e: 205 | print e 206 | sys.exit('ERROR: Unable to retrieve VPC Zone via API (%s)' % e) 207 | 208 | # Compare the master and VPC Route 53 zone file 209 | vpc_soa = vpc_zone.get_rdataset('@', 'SOA') 210 | vpc_serial = vpc_soa[0].serial 211 | if not (vpc_serial > serial): 212 | print 'Comparing SOA serial %s with %s ' % (vpc_serial, serial) 213 | differences = diff_zones(vpc_zone, master_zone, ignore_ttl) 214 | 215 | for host, rdtype, record, ttl, action in differences: 216 | if rdtype != dns.rdatatype.SOA: 217 | update_resource_record(route53_zone_id, host, domain_name, lookup_rdtype.recmap(rdtype), record, ttl, 218 | action) 219 | 220 | # Update the VPC SOA to reflect the version just processed 221 | vpc_soa[0].serial = serial 222 | try: 223 | soarecord = [str(vpc_soa[0])] 224 | update_resource_record(route53_zone_id, '', domain_name, 'SOA', soarecord, vpc_soa[0].minimum, 'UPSERT') 225 | except BaseException as e: 226 | print e 227 | sys.exit('ERROR: Failed to update SOA to %s on Route 53 VPC Zone' % str(serial)) 228 | else: 229 | sys.exit('ERROR: Route 53 VPC serial %s for domain %s is greater than existing serial %s' % (str(vpc_serial), domain_name, str(serial))) 230 | 231 | return 'SUCCESS: %s mirrored to Route 53 VPC serial %s' % (domain_name, str(serial)) 232 | -------------------------------------------------------------------------------- /lookup_rdtype.py: -------------------------------------------------------------------------------- 1 | # Copyright 2016 Amazon.com, Inc. or its affiliates. All Rights Reserved. 2 | # 3 | # Licensed under the Apache License, Version 2.0 (the "License"). You may not 4 | # use this file except in compliance with the License. A copy of the License is 5 | # located at 6 | # http://aws.amazon.com/apache2.0/ 7 | # 8 | # or in the "license" file accompanying this file. This file is distributed on 9 | # an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 10 | # express or implied. See the License for the specific language governing 11 | # permissions and limitations under the License. 12 | 13 | # -*- coding: utf-8 -*- 14 | # 15 | # lookup_rdtype.py 16 | # 17 | # Mapping of dnspython record types to traditional DNS record types so that 18 | # AWS Route 53 API call will understand the request. 19 | 20 | record_type = { 21 | 0: 'NONE', 22 | 1: 'A', 23 | 2: 'NS', 24 | 3: 'MD', 25 | 4: 'MF', 26 | 5: 'CNAME', 27 | 6: 'SOA', 28 | 7: 'MB', 29 | 8: 'MG', 30 | 9: 'MR', 31 | 10: 'NULL', 32 | 11: 'WKS', 33 | 12: 'PTR', 34 | 13: 'HINFO', 35 | 14: 'MINFO', 36 | 15: 'MX', 37 | 16: 'TXT', 38 | 17: 'RP', 39 | 18: 'AFSDB', 40 | 19: 'X25', 41 | 20: 'ISDN', 42 | 21: 'RT', 43 | 22: 'NSAP', 44 | 23: 'NSAP_PTR', 45 | 24: 'SIG', 46 | 25: 'KEY', 47 | 26: 'PX', 48 | 27: 'GPOS', 49 | 28: 'AAAA', 50 | 29: 'LOC', 51 | 30: 'NXT', 52 | 33: 'SRV', 53 | 35: 'NAPTR', 54 | 36: 'KX', 55 | 37: 'CERT', 56 | 38: 'A6', 57 | 39: 'DNAME', 58 | 41: 'OPT', 59 | 42: 'APL', 60 | 43: 'DS', 61 | 44: 'SSHFP', 62 | 45: 'IPSECKEY', 63 | 46: 'RRSIG', 64 | 47: 'NSEC', 65 | 48: 'DNSKEY', 66 | 49: 'DHCID', 67 | 50: 'NSEC3', 68 | 51: 'NSEC3PARAM', 69 | 52: 'TLSA', 70 | 55: 'HIP', 71 | 59: 'CDS', 72 | 60: 'CDNSKEY', 73 | 62: 'CSYNC', 74 | 99: 'SPF', 75 | 103: 'UNSPEC', 76 | 108: 'EUI48', 77 | 109: 'EUI64', 78 | 249: 'TKEY', 79 | 250: 'TSIG', 80 | 251: 'IXFR', 81 | 252: 'AXFR', 82 | 253: 'MAILB', 83 | 254: 'MAILA', 84 | 255: 'ANY', 85 | 256: 'URI', 86 | 257: 'CAA', 87 | 32768: 'TA', 88 | 32769: 'DLV' 89 | } 90 | 91 | 92 | def recmap(rdtype): 93 | for key, value in record_type.iteritems(): 94 | if key == rdtype: 95 | return value 96 | -------------------------------------------------------------------------------- /mirror-dns-policy.json: -------------------------------------------------------------------------------- 1 | { 2 | "Version": "2012-10-17", 3 | "Statement": [{ 4 | "Effect": "Allow", 5 | "Action": [ 6 | "logs:CreateLogGroup", 7 | "logs:CreateLogStream", 8 | "logs:PutLogEvents" 9 | ], 10 | "Resource": "arn:aws:logs:*:*:*" 11 | }, { 12 | "Effect": "Allow", 13 | "Action": [ 14 | "ec2:CreateNetworkInterface", 15 | "ec2:DescribeNetworkInterfaces", 16 | "ec2:DetachNetworkInterface", 17 | "ec2:DeleteNetworkInterface" 18 | ], 19 | "Resource": "*" 20 | }, { 21 | "Sid": "Route53access", 22 | "Effect": "Allow", 23 | "Action": [ 24 | "route53:ChangeResourceRecordSets", 25 | "route53:ListResourceRecordSets" 26 | ], 27 | "Resource": [ "*" ] 28 | }] 29 | } 30 | -------------------------------------------------------------------------------- /mirror-dns-trust.json: -------------------------------------------------------------------------------- 1 | { 2 | "Version": "2012-10-17", 3 | "Statement": [{ 4 | "Sid": "", 5 | "Effect": "Allow", 6 | "Principal": { 7 | "Service": "lambda.amazonaws.com" 8 | }, 9 | "Action": "sts:AssumeRole" 10 | }] 11 | } 12 | -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | dnspython>=1.14 2 | boto3>=1.3 3 | --------------------------------------------------------------------------------