Allow setting journal size and tag size for integrity metadata pre-allocations on create

[mulkieran]

No description provided.

[mulkieran]

Current pool create help text:

usage: stratis pool create [-h] [--clevis {nbde,tang,tpm2}]
                           [--tang-url TANG_URL]
                           [--trust-url | --thumbprint THUMBPRINT]
                           [--journal-size JOURNAL_SIZE] [--tag-size TAG_SIZE]
                           [--key-desc KEY_DESC] [--no-overprovision]
                           pool_name blockdevs [blockdevs ...]

positional arguments:
  pool_name             Name of new pool
  blockdevs             Create the pool using these block devs

options:
  -h, --help            show this help message and exit
  --key-desc KEY_DESC   Key description of key in kernel keyring to use for
                        encryption
  --no-overprovision    Do not allow the sum of the logical size of the pool's
                        filesystems to exceed the size of the pool's data
                        area.

clevis:
  Arguments controlling creation with Clevis encryption

  --clevis {nbde,tang,tpm2}
                        Specification for binding with Clevis.
  --tang-url TANG_URL   URL of Clevis tang server (--clevis=[tang|nbde] must
                        be set)
  --trust-url           Omit verification of tang server credentials (--tang-
                        url option must be set)
  --thumbprint THUMBPRINT
                        Thumbprint of tang server (--tang-url option must be
                        set)

integrity:
  Optional parameters for configuring integrity metadata pre-allocation

  --journal-size JOURNAL_SIZE
                        Size of integrity device's journal. Each block is
                        written to this journal before being written to its
                        address. The size of must be a multiple of 4 KiB.
  --tag-size TAG_SIZE   Size of tag to use to verify correctness of 4KiB
                        block, e.g, 64B. Must be a power of 2 and less than
                        128B.

We could call the two newly added options, --integrity-journal-size and --integrity-tag-size.

[mulkieran]

man pages not yet written.