[pve-devel] [PATCH installer v4 0/4] add check/rename for already-existing ZFS rpool

[Christoph Heiss]

Pretty straight forward overall, implements a check for an existing
`rpool` on the system and ask the user whether they would like to rename
it, much in the same way as it works for VGs already.

Without this, the installer would silently create a second (and thus
conflicting) `rpool` and cause a boot failure after the installation,
since it does not know which pool to import exactly.

v1: https://lists.proxmox.com/pipermail/pve-devel/2024-May/063874.html
v2: https://lists.proxmox.com/pipermail/pve-devel/2024-July/064619.html
v3: https://lists.proxmox.com/pipermail/pve-devel/2024-July/064635.html

Notable changes v3 -> v4:
  * rebased on latest master
  * rename $response_ok -> $do_rename for clarity, as suggested by Aaron

Notable changes v2 -> v3:
  * make low-level option lvm_auto_rename more generic
  * skip rename prompt in auto-install mode

Notable changes v1 -> v2:
  * incorporated Aarons suggestions from v1
  * rewrote tests to use a pre-defined input instead
  * moved pool renaming to own subroutine
  * documented all new subroutines
  * split out tests into own patch

Christoph Heiss (4):
  proxmox: add zfs module for retrieving importable zpool info
  test: add test cases for new zfs module
  install: config: rename option lvm_auto_rename ->
    existing_storage_auto_rename
  low-level: install: check for already-existing `rpool` on install

 Proxmox/Install.pm                            |  41 ++++++-
 Proxmox/Install/Config.pm                     |   6 +-
 Proxmox/Makefile                              |   1 +
 Proxmox/Sys/ZFS.pm                            | 109 ++++++++++++++++++
 proxmox-auto-installer/src/utils.rs           |   2 +-
 .../resources/parse_answer/disk_match.json    |   2 +-
 .../parse_answer/disk_match_all.json          |   2 +-
 .../parse_answer/disk_match_any.json          |   2 +-
 .../tests/resources/parse_answer/minimal.json |   2 +-
 .../resources/parse_answer/nic_matching.json  |   2 +-
 .../resources/parse_answer/specific_nic.json  |   2 +-
 .../tests/resources/parse_answer/zfs.json     |   2 +-
 proxmox-installer-common/src/setup.rs         |   2 +-
 proxmox-tui-installer/src/setup.rs            |   2 +-
 test/Makefile                                 |   7 +-
 test/zfs-get-pool-list.pl                     |  57 +++++++++
 16 files changed, 223 insertions(+), 18 deletions(-)
 create mode 100644 Proxmox/Sys/ZFS.pm
 create mode 100755 test/zfs-get-pool-list.pl

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2.44.0