[pve-devel] [PATCH installer 00/14] fix #5536: implement post-(auto-)installation notification mechanism

[Christoph Heiss]

This implements a mechanism for post-installation "notifications" via a
POST request [0] when using the auto-installer.

It's implemented as a separate, small utility to facilitate separation
of concerns and make the information gathering easier by having it
isolated in one place.

Patches #1 through #10 are simply clean-ups, refactors, etc. that were
done along the way, which do not impact functionality in any way.

Most interesting here will be patch #12, which adds the actual
implementation of the post-hook. (Bind-)mounting the installed host
system is done using the existing `proxmox-chroot` utility, and the HTTP
POST functionality can fortunately be re-used 1:1 from
`proxmox-fetch-answer`.

I've also included an example of how the JSON body (pretty-printed for
readability) of such a post-installation request would look like below,
for reference.

Tested this with both PVE and PBS ISOs, PMG did not (yet) have a
release with an auto-installation capable ISO. The only product-specific
code is the version detection in `proxmox-post-hook`, which - since it
works the same for PVE and PMG - be no obstacle.

[0] https://bugzilla.proxmox.com/show_bug.cgi?id=5536

{
  "debian-version": "12.5",
  "product-version": "pve-manager/8.2.2/9355359cd7afbae4",
  "kernel-version": "proxmox-kernel-6.8.4-2-pve-signed",
  "boot-type": "bios",
  "filesystem": "zfs (RAID1)",
  "fqdn": "host.domain",
  "machine-id": "f4bf9711783248b7aaffe3ccbca3e3dc",
  "bootdisk": [
    {
      "size": 8589934592,
      "udev-properties": {
        "DEVNAME": "/dev/vda", [..]
      }
    },
    {
      "size": 8589934592,
      "udev-properties": {
        "DEVNAME": "/dev/vdb", [..]
      }
    }
  ],
  "management-nic": {
    "mac": "de:ad:f0:0d:12:34",
    "address": "10.0.0.10/24",
    "udev-properties": {
      "INTERFACE": "enp6s18", [..]
    }
  },
  "ssh-public-host-keys": {
    "ecdsa": "ecdsa-sha2-nistp256 [..] root at host",
    "ed25519": "ssh-ed25519 [..] root at host",
    "rsa": "ssh-rsa [..] root at host",
  }
}

Christoph Heiss (14):  chroot: print full anyhow message
  tree-wide: fix some typos
  tree-wide: collect hardcoded installer runtime directory strings into
    constant
  common: simplify filesystem type serializing & Display trait impl
  common: setup: serialize `target_hd` as string explicitly
  common: split out installer setup files loading functionality
  debian: strip unused library dependencies
  fetch-answer: move http-related code to gated module in
    installer-common
  tree-wide: convert some more crates to use workspace dependencies
  auto-installer: tests: replace left/right with got/expected in output
  auto-installer: answer: add `posthook` section
  fix #5536: add post-hook utility for sending notifications after
    auto-install
  fix #5536: post-hook: add some unit tests
  unconfigured.sh: run proxmox-post-hook after successful auto-install

 Cargo.toml                                    |  11 +
 Makefile                                      |   8 +-
 debian/control                                |   1 +
 debian/install                                |   1 +
 debian/rules                                  |   9 +
 proxmox-auto-install-assistant/Cargo.toml     |  14 +-
 proxmox-auto-installer/Cargo.toml             |  15 +-
 proxmox-auto-installer/src/answer.rs          |  27 +-
 .../src/bin/proxmox-auto-installer.rs         |  15 +-
 proxmox-auto-installer/src/sysinfo.rs         |  10 +-
 proxmox-auto-installer/src/utils.rs           |  15 +-
 proxmox-auto-installer/tests/parse-answer.rs  |  42 +-
 proxmox-chroot/Cargo.toml                     |   8 +-
 proxmox-chroot/src/main.rs                    |  19 +-
 proxmox-fetch-answer/Cargo.toml               |  17 +-
 .../src/fetch_plugins/http.rs                 | 100 +---
 .../src/fetch_plugins/partition.rs            |  14 +-
 proxmox-installer-common/Cargo.toml           |  26 +-
 proxmox-installer-common/src/http.rs          |  94 ++++
 proxmox-installer-common/src/lib.rs           |   5 +
 proxmox-installer-common/src/options.rs       | 109 ++--
 proxmox-installer-common/src/setup.rs         | 108 +---
 proxmox-installer-common/src/utils.rs         |   2 +
 proxmox-post-hook/Cargo.toml                  |  19 +
 proxmox-post-hook/src/main.rs                 | 498 ++++++++++++++++++
 proxmox-tui-installer/Cargo.toml              |   8 +-
 proxmox-tui-installer/src/setup.rs            |   2 +-
 unconfigured.sh                               |   7 +-
 28 files changed, 862 insertions(+), 342 deletions(-)
 create mode 100644 proxmox-installer-common/src/http.rs
 create mode 100644 proxmox-post-hook/Cargo.toml
 create mode 100644 proxmox-post-hook/src/main.rs

-- 
2.45.1