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dm-crypt Cookbook

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Table of Contents

  1. Overview
  2. Requirements
  3. Usage
  4. Contributing
  5. License & Authors

Overview

This cookbook provides a way to format devices with LUKS via dm-crypt. Other encryption options supported by dm-crypt as well as other features will be added in time.

Requirements

Requires Chef 12.5 or later as this cookbook makes use of Custom Resources.

Usage

You always need to include the main recipe:

include_recipe 'dm-crypt::default'

This installs 2 packages:

  • cryptsetup - Utilities for interacting with dm-crypt.
  • file - Used to determine if devices are correctly formatted.

dmcrypt_device

Each device to be formatted by dm-crypt is defined by a dmcrypt_device custom resource.

Each dmcrypt_device has the following attributes:

Attribute Type Description Default
name String Resource name. N/A
device String The absolute path to the device to be formatted. N/A
passphrase String Passphrase used to encrypt the device. N/A
keyfile String Key file used to encrypt the device. N/A

NOTE: You must supply either a passphrase or a keyfile but never both.

To encrypt an LVM partition:

dmcrypt_device 'enc_data' do
  device '/dev/mapper/vg_enc-lv_data'
  passphrase 'supersecretword'
end

Contributing

If you would like to contribute to this cookbook please follow these steps;

  1. Fork the repository on Github.
  2. Create a named feature branch (like add_component_x).
  3. Write your change.
  4. Write tests for your change (if applicable).
  5. Run the tests, ensuring they all pass.
  6. Submit a Pull Request using Github.

License and Authors

License: BSD 2 Clause

Authors:

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Chef cookbook to manage dm-crypt based devices.

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