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PowerDNS backend using DynamoDB

Project description

PowerDNS backend using DynamoDB

Schema

  • name - string - hash key
  • type - string - range key
  • ttl - number
  • values - set of strings

Note that in order to simplify the DynamoDB schema MX and SRV records must store the priority field at the beginning of the content, separated by a TAB.

Permissions

It is recommended you create a special IAM users that only has permissions for querying DNS records to be used by this backend. You can use the following IAM policy template (replacing REGION, ACCOUNTID and TABLE with the correct values).

{
  "Statement": [
    {
      "Action": [
        "dynamodb:DescribeTable",
        "dynamodb:GetItem",
        "dynamodb:Query"
      ],
      "Effect": "Allow",
      "Resource": [
        "arn:aws:dynamodb:REGION:ACCOUNTID:table/TABLE"
      ]
    }
  ]
}

Usage

Secret key storage

Place the secret key of the IAM account into a file that is only readable by the pdns user.

Executable script

Create an executable script that looks like

#!/bin/sh

exec /path/to/pdns-dynamodb -t TABLE -r REGION -I ACCESS_KEY -K /path/to/secret.key

Replacing TABLE, REGION and ACCESS_KEY with the appropriate values and the path to secret key from the previous step.

PowerDNS backend configuration

Configure pdns.conf as follows:

launch=pipe
pipe-command=/path/to/executable/script

using the path to the executable script you created above.

Project details


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1.0.2

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1.0.1

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Filename, size & hash SHA256 hash help File type Python version Upload date
pdns-dynamodb-1.0.2.tar.gz (5.2 kB) Copy SHA256 hash SHA256 Source None Sep 11, 2012

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