This is simple web service that will update addresses in Amazon's Route53 DNS service. It supports multiple users, multiple sets of AWS credentials per use, and multiple managed hostnames per user.

NB r53dns needs a version of [pony][] that includes commit c579cba, which at the time of this writing is only available when installing from git.

r53ddns.app.app is a standard Python WSGI application. This repository can be deployed as is onto OpenShift, or you can run it locally using, for example, gunicorn:

gunicorn r53ddns.app:app

This application uses HTTP basic authentication. You should only access this application over an SSL encrypted connection with certificate verification.

Passwords are hashed and salted on the server using the [passlib][] module's default configuration (which, on 64 bit systems, is 6 rounds of SHA512-Crypt).

Create a new user account.

Required values:

• username
• password

Optional values:

• is_admin -- set this to 1 if you want the user to be an administrator.

Add a new set of AWS credentials to the user account.

Required values:

• accesskey
• secretkey

Option values:

• label -- a label that can be used to refer to these credentials

Add a new host record to the user account.

Required values:

• credentials -- credentials id or label that should be used when updating this host in Route53.
• hostname

Optional values:

• zone -- if this is not specified, the zone name is everything after the first dot-delimited component of the hostname (e.g., for "my.host.example.com", the zone would be "host.example.com" unless provided explicitly).

Update the corresponding record set in Route53 with the address of the client (or the specified address).

Optional values:

• address -- Provide an address explicitly, rather than using the address of the connecting client.

• /ip -- returns the ip address of the client (like http://icanhazip.com/). This is useful for checking what address will be set when you send an update request.

• /debug -- [admin] Returns a JSON dump of the WSGI environment.

r53ddns will load settings from a file named settings.py located in either your current working directory or in OPENSHIFT_DATA_DIR.

Available configuration options:

• DATABASE -- path to (SQLite) database file
• ADMIN_NAME -- name of admin user
• ADMIN_PASSWORD -- password of admin user

• Create a new user account.

    $ curl https://r53ddns.example.com/user/ \
      -d username=lars -d password=macaroni \
      -u admin:secret
    {
      "status": "created", 
      "data": {
        "password": "macaroni", 
        "is_admin": false, 
        "id": 1, 
        "name": "lars", 
        "created": "2015-04-09 15:30:51.209231"
      }
    }
  

• Add a set of AWS credentials:

    $ curl https://r53ddns.example.com/user/lars/credentials/ \
      -d accesskey=123456 \
      -d secretkey=abcdef \
      -d label=default \
      -u lars:macaroni
    {
      "status": "created", 
      "data": {
        "owner": 1, 
        "secretkey": "abcdef", 
        "accesskey": "123456", 
        "id": 1, 
        "name": "default"
      }
    }
  

• Add a host record:

    $ curl https://r53ddns.example.com/user/lars/host/ \
      -d hostname=r53-test.oddbit.com \
      -d credentials=default \
      -u lars:macaroni
    {
      "name": "r53-test.oddbit.com", 
      "zone": "oddbit.com", 
      "created": "2015-10-06 15:30:00.121071", 
      "last_update": "2015-10-06 15:30:00.121095", 
      "credentials": 1, 
      "id": 6, 
      "last_address": ""
    }
  

• Update the address in AWS Route53:

    $ curl https://r53ddns.example.com/user/lars/host/r53-test.oddbit.com/address \
      -X POST \
      -u lars:macaroni
    {
      "name": "r53-test.oddbit.com", 
      "zone": "oddbit.com", 
      "created": "2015-04-12 20:13:32.145472", 
      "last_update": "2015-10-06 15:29:10.026487", 
      "credentials": 1, 
      "id": 4, 
      "last_address": "173.48.212.97"
    }
  

Please report bugs using the GitHub issue tracker at https://github.com/larsks/r53ddns/issues.

r53ddns -- dynamic dns server for Route53 Copyright (C) 2015 Lars Kellogg-Stedman

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.