crypttab – Encrypted Linux block devices

New in version 1.9.

Synopsis

  • Control Linux encrypted block devices that are set up during system boot in /etc/crypttab.

Parameters

Parameter Choices/Defaults Comments
backing_device
-
Path to the underlying block device or file, or the UUID of a block-device prefixed with UUID=.
name
- / required
Name of the encrypted block device as it appears in the /etc/crypttab file, or optionally prefixed with /dev/mapper/, as it appears in the filesystem. /dev/mapper/ will be stripped from name.
opts
-
A comma-delimited list of options. See crypttab(5 ) for details.
password
-
Default:
"none"
Encryption password, the path to a file containing the password, or none or - if the password should be entered at boot.
path
-
Default:
"/etc/crypttab"
Path to file to use instead of /etc/crypttab. This might be useful in a chroot environment.
state
- / required
    Choices:
  • absent
  • opts_absent
  • opts_present
  • present
Use present to add a line to /etc/crypttab or update it's definition if already present. Use absent to remove a line with matching name. Use opts_present to add options to those already present; options with different values will be updated. Use opts_absent to remove options from the existing set.

Examples

- name: Set the options explicitly a device which must already exist
  crypttab:
    name: luks-home
    state: present
    opts: discard,cipher=aes-cbc-essiv:sha256

- name: Add the 'discard' option to any existing options for all devices
  crypttab:
    name: '{{ item.device }}'
    state: opts_present
    opts: discard
  with_items: '{{ ansible_mounts }}'
  when: "'/dev/mapper/luks-' in {{ item.device }}"

Status

Authors

  • Steve (@groks)

Hint

If you notice any issues in this documentation you can edit this document to improve it.

© 2012–2018 Michael DeHaan
© 2018–2019 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/2.7/modules/crypttab_module.html