route53-ddns

DDNS with AWS Lambda, Amazon API Gateway and Route53

Role

role: ddns-role
- description: delegate access across AWS accounts
- policy: policy-route53.yaml
role: lambda-ddns-role
- description: A role for Lambda to access cross-account route53.
- policy:
  - policy-assume-role.yaml
  - AWSLambdaBasicExecutionRole: A role automatically generated by AWS

Lambda

role: lambda-ddns-role
code: lambda_function.py
trigger
- API Gateway
  - protocol: HTTP
environment variables
- DK: sha256(SALT+key)
  - hashlib.sha256((SALT + key).encode()).hexdigest()
- SALT: Random string to set for SALT
- ROLE_ARN: ARN of ddns-role. If you do not want cross-account access, do not set it.

curl

# IPv6/IPv4
curl -X POST 'https://XXXXXXXXXXX.execute-api.ap-northeast-1.amazonaws.com/default/ddns?zone_id=<YOUR_HOSTED_ZONE_ID>&key=<key>&fqdn=<example.com.>&ipv6=<IPV6_ADDRESS>&ipv6=<IPV4_ADDRESS>'

# IPv6
curl -X POST 'https://XXXXXXXXXXX.execute-api.ap-northeast-1.amazonaws.com/default/ddns?zone_id=<YOUR_HOSTED_ZONE_ID>&key=<key>&fqdn=<v6.example.com.>&ipv6=<IPV6_ADDRESS>'

# IPv4
curl -X POST 'https://XXXXXXXXXXX.execute-api.ap-northeast-1.amazonaws.com/default/ddns?zone_id=<YOUR_HOSTED_ZONE_ID>&key=<key>&fqdn=<v4.example.com.>&ipv4=<IPV4_ADDRESS>'
## if ipv4=source, register the source IP address.
curl -X POST 'https://XXXXXXXXXXX.execute-api.ap-northeast-1.amazonaws.com/default/ddns?zone_id=<YOUR_HOSTED_ZONE_ID>&key=<key>&fqdn=<v4.example.com.>&ipv4=source'

kyokuheki/route53-ddns

route53-ddns

Role

Lambda

curl

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