Step: cryptsetup
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Use cryptsetup to set up encryption of a block device.

Step keys:

* `cryptsetup` &mdash; REQUIRED; tag of block device

* `password` &mdash; REQUIRED; the encryption password

* `name` &mdash; REQUIRED; name of the encrypted device when opened

Example (in the .vmdb file):

    - cryptsetup: cleartext_pv0
      password: hunter2
      name: pv0
