Utility to store and retrieve dm-crypt keys in Hashicorp Vault.

Vault provides a nice way to manage secrets within complex software deployments.

vaultlocker provides a way to store and retrieve dm-crypt encryption keys in Vault, automatically retrieving keys and opening LUKS dm-crypt devices on boot.

vaultlocker is configured using /etc/vaultlocker/vaultlocker.conf:

[vault]
url = https://vault.internal:8200
approle = 4a1b84d2-7bb2-4c07-9804-04d1683ac925
backend = secret

vaultlocker defaults to using a backend with the name secret.

A block device can be encrypted and its key stored in vault:

sudo vaultlocker encrypt /dev/sdd1

This will automatically create a new systemd unit which will automatically retrieve the key and open the LUKS/dm-crypt device on boot.

Unless a UUID is provided (using the optional --uuid flag) vaultlocker will generate a UUID to label and identify the block device during subsequent operations.

A block device can also be opened from the command line using its UUID (hint - the block device or partition will be labelled with the UUID):

sudo vaultlocker decrypt f65b9e66-8f0c-4cae-b6f5-6ec85ea134f2

Authentication to Vault is done using an AppRole with a secret_id; its assumed that a CIDR based ACL is in use to only allow permitted systems within the Data Center to login and retrieve secrets from Vault.

• Free software: Apache license
• Documentation: https://docs.openstack.org/vaultlocker/latest
• Source: https://git.openstack.org/cgit/openstack/vaultlocker
• Bugs: https://bugs.launchpad.net/vaultlocker