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encryptfs (2) Versions 1.0.0

LWRP to manage encrypted one-boot-use filesystems for sensitive information on untrusted hardware or cloud appliances.

Berkshelf/Librarian
Policyfile
Knife
cookbook 'encryptfs', '= 1.0.0'
cookbook 'encryptfs', '= 1.0.0', :supermarket
knife cookbook site install encryptfs
knife cookbook site download encryptfs
README
Dependencies
Quality -%

Description

This cookbook contains an LWRP to manage one-time-use encrypted filesystem using the cryptsetup package in Debian and Ubuntu. On each boot, a filesystem-in-a-file will be created, mounted as a loop device, encrypted via cryptsetup with a randomly-generated key that isn't stored anywhere, and mounted for use. It isn't necessary to reboot for the filesystem resources to become available, but they will be created anew each time a machine reboots.

The intended purpose of this cookbook is for deploying servers which will handle sensitive information on untrusted systems or cloud deployments, so that the filesystems themselves will not be readable outside the running instance. Information stored in the encrypted filesystem will be irretrievable after reboot.

Requirements

Platform

Tested on: * Debian 6.0 * Ubuntu 12.04

This cookbook will only work on Debian or Ubuntu systems if the cryptsetup package is available. The cryptsetup package will be installed if it's not already present.

Attributes

  • node['encryptfs'['uninstall_cryptsetup_iflast'] - Sets the cookbook to remove the cryptsetup packages after the last filesystem is removed from /etc/crypttab. Default is false, to leave the packages installed. Only the cryptsetup and cryptsetup-bin packages will be uninstalled if this is true.

Recipes

default

The default recipe won't do anything.

example

This represents an example of creating a few small encrypted filesystems. You really should be using this only as an LWRP.

Resource/Provider

This cookbook includes an LWRP, encryptfs, for managing one-time-use encrypted filesystems.

encryptfs "data" do
  size 100
  filepath "/cryptfs"
  mountpath "/usr/local/cryptdata"
  action :create
end

The size is specified in megabytes. The filepath is where the file of that size is to be created in your existing filesystems. That file will become a loop device containing the encrypted block data. The mountpath will be where the encrypted filesystem is to be mounted. The LWRP supports both :create and :delete actions.

Usage

Put the following in your cookbook's metadata.rb file to include this LWRP:

depends "encryptfs"

The following added to your recipes will create an encrypted filesystem:

encryptfs "data" do
  size 100
  filepath "/cryptfs"
  mountpath "/usr/local/cryptdata"
  fstype "ext4"
  action :create
end

The following added to your recipe will delete an encrypted filesystem:

encryptfs "data" do
  action :delete
end

License and Authors

Author: Neil Schelly

Copyright 2013, Dyn, Inc

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Dependent cookbooks

This cookbook has no specified dependencies.

Contingent cookbooks

There are no cookbooks that are contingent upon this one.

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