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Author SHA1 Message Date
beatzaplenty 79e8f9f2ce Prompt for a host-key path interactively as a third fallback
Check NixOS configurations / eval-hosts (pull_request) Successful in 10m19s
If neither /etc/host-keys nor /root/host-keys has the target's SSH
host key, auto-install.sh previously went straight to "continue
without one anyway?". Added a third option in between, gated on
[[ -t 0 ]] (only offered when there's an actual operator at stdin, never
in an unattended/non-interactive run): prompt for an arbitrary
directory (USB stick, other mount, etc.), and if the key pair is
there, copy it into /root/host-keys and install it to /mnt same as the
existing pre-seeded-key path. Falls through to the original
warning+confirm if the prompt is skipped, the path doesn't have the
key, or the run isn't interactive at all.

docs/auto-installer.md updated to mention the new fallback. Quick
bash -n + shellcheck pass only, per request.
2026-07-22 02:54:06 +00:00
beatzaplenty b46424343f Wrap auto-install.sh in a nix-shell shebang for its required tools
Check NixOS configurations / eval-hosts (pull_request) Successful in 10m20s
Running the script standalone (its whole point per the last commit)
failed with "disko: command not found" -- jq/disko/nixos-install are
only guaranteed present via the built installer image's
environment.systemPackages, not on a plain checkout.

Added a #!/usr/bin/env nix-shell / #!nix-shell -i bash -p jq disko
nixos-install-tools shebang instead of a per-tool fallback: disko's own
generated scripts already hardcode absolute Nix store paths for
everything they shell out to internally (parted/sgdisk/mkfs.*/zfs/...
confirmed by inspecting a generated system.build.formatScript earlier),
so these three are the only genuinely external dependencies the script
itself has. This is a fast no-op on the built installer image (already
has all three) and what makes it also work standalone.

Quick syntax + shellcheck pass only this round (bash -n, shellcheck
with a `shellcheck shell=bash` directive since it doesn't recognize
nix-shell shebangs natively) -- skipping the full codex-maintenance.sh
sweep per request, to get this out for a real hardware test.
2026-07-22 02:44:49 +00:00
beatzaplenty f565e9c2a1 Fix auto-install.sh to work standalone, not just baked into the image
Check NixOS configurations / eval-hosts (pull_request) Successful in 11m6s
Two real bugs, both hit live:

1. Shebang: #!/run/current-system/sw/bin/bash only resolves on an
   already-activated NixOS system -- running the checked-out script
   directly (e.g. from a stock ISO, cloned repo) failed with "cannot
   execute: required file not found" on a non-NixOS box. Switched to
   #!/usr/bin/env bash, which resolves identically on NixOS
   (environment.usrbinenv's own default) and any normal Linux distro.
   Also fixed the file's missing executable bit.

2. FLAKE_BASE_URL: previously depended on pkgs.replaceVars substituting
   a Nix-templated @lanDomain@ placeholder at build time -- meaning it
   only ever worked when baked into the built installer image, not when
   run straight from a checkout (the literal, unexpanded "@lanDomain@"
   string reached git as a bogus hostname). Replaced with LAN_DOMAIN in
   scripts/env.sh (manually kept in sync with variables.nix's lanDomain,
   same pattern as NIX_CACHE_HOST/nixCacheHost already), sourced by the
   script itself like every other script in scripts/. Dropped
   pkgs.replaceVars from modules/installer/common.nix entirely --
   scripts/env.sh is now baked into the image alongside auto-install.sh
   at a matching relative path (/etc/nixos-installer/env.sh next to
   /etc/nixos-installer/installer/auto-install.sh) so the script's own
   relative `source` line resolves the same way in both contexts.

loginShellInit's invocation path and docs/auto-installer.md updated to
match. Verified: shellcheck clean on both scripts, the baked files are
byte-identical to their checked-in sources (no templating left to
verify), and codex-maintenance.sh (secret grep, fmt, statix, full eval
of every host/package including the installer/pxe artifacts) passes
clean.
2026-07-22 02:38:11 +00:00
beatzaplenty 60c155327d Restore guiRootDisk1/guiRootDisk2, lost in a merge conflict on main
Check NixOS configurations / eval-hosts (pull_request) Successful in 10m33s
These were dropped from variables.nix by a stash/merge conflict
resolution on main (commit fb6ee27) that kept the new wifiSsid value
but discarded the two disk-path variables entirely, leaving unresolved
`<<<<<<< Updated upstream` markers in an intermediate commit before
being cleaned up. modules/disko/baremetal.nix references both directly
with no fallback, so baremetal-gui has been failing to evaluate on main
since that commit ("attribute 'guiRootDisk1' missing") -- confirmed by
cloning main fresh and evaluating config.disko.devices.disk.disk1.device
directly.

This commit is rebased onto latest main (through "updated secrets",
which registered baremetal-gui's real sops recipient) rather than the
older base this branch started from.
2026-07-22 02:15:37 +00:00
beatzaplenty 12a2354fad Move auto-install.sh out of Nix config into a real script file
Moves the auto-installer's shell script from an inline Nix string in
modules/installer/common.nix to scripts/installer/auto-install.sh, a
real, version-controlled, directly-editable/shellcheck-able file.
common.nix now wires it in with pkgs.replaceVars, substituting the one
value that actually needs to come from variables.nix (lanDomain) --
every other `${...}` in the script is a literal bash reference, left
untouched. replaceVars fails the build if any @name@-shaped placeholder
is left unsubstituted, so a typo'd or renamed variable is caught at
eval time rather than silently shipping broken.

Verified: built the substituted derivation and diffed it against the
source template -- identical except for the one substituted line, no
leftover unsubstituted placeholders. Full codex-maintenance.sh (secret
grep, fmt, statix, full eval of every host/package including the
installer/pxe artifacts that consume this) passes clean.
2026-07-22 02:05:31 +00:00
6 changed files with 261 additions and 152 deletions

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+36 -9
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@@ -164,13 +164,39 @@ before committing.
Beyond `codex-setup.sh`/`codex-maintenance.sh` above, `scripts/` is
organized by purpose: `scripts/secrets/` (sops/age + SSH host-key
management), `scripts/proxmox/` (Proxmox deployment), `scripts/lib/`
(shared helpers, sourced by the scripts below — not run directly), and a
handful of repo-wide scripts left at the top level (`env.sh`,
`bump-nixpkgs-release.sh`, plus `codex-setup.sh`/`codex-maintenance.sh`
above). When adding a new script, put it in the matching subfolder rather
than the top level, and if it duplicates logic another script already has,
lift the shared part into `scripts/lib/` instead of copying it.
management), `scripts/proxmox/` (Proxmox deployment), `scripts/installer/`
(the auto-installer's own shell script, templated into the image — see
below), `scripts/lib/` (shared helpers, sourced by the scripts below — not
run directly), and a handful of repo-wide scripts left at the top level
(`env.sh`, `bump-nixpkgs-release.sh`, plus `codex-setup.sh`/
`codex-maintenance.sh` above). When adding a new script, put it in the
matching subfolder rather than the top level, and if it duplicates logic
another script already has, lift the shared part into `scripts/lib/`
instead of copying it.
### `scripts/installer/`
- `scripts/installer/auto-install.sh` — the interactive install script
baked into the auto-installer image (see `docs/auto-installer.md`), kept
as a real, version-controlled shell file rather than inline in
`modules/installer/common.nix`'s Nix. It sources `scripts/env.sh` itself
for `LAN_DOMAIN` (`export LAN_DOMAIN`/`: "${LAN_DOMAIN:=...}"`, matching
`variables.nix`'s `lanDomain` — manually kept in sync, same pattern as
`NIX_CACHE_HOST` mirroring `nixCacheHost`), rather than Nix-level string
substitution — that's what makes it work identically whether run
straight from a git checkout or from inside the built installer image.
`common.nix` bakes `scripts/env.sh` in alongside it at a matching
relative path (`/etc/nixos-installer/env.sh` next to
`/etc/nixos-installer/installer/auto-install.sh`) so the script's own
`source "$(dirname ...)/../env.sh"` line resolves the same way in both
contexts — this is also why it's invoked from
`/etc/nixos-installer/installer/auto-install.sh` rather than a flat
`/etc/auto-install.sh`. `#!/usr/bin/env bash`, not
`#!/run/current-system/sw/bin/bash`: the latter only resolves on an
already-activated NixOS system, breaking the checked-out-file case
entirely (confirmed live: "cannot execute: required file not found" on
a non-NixOS box); `/usr/bin/env` is reliably present on both NixOS
(`environment.usrbinenv`'s own default) and any normal Linux distro.
### `scripts/secrets/`
@@ -282,8 +308,9 @@ Sourced by the scripts above, never run directly:
### Top level
- `scripts/env.sh` — shared config (`PROXMOX_HOST`, storage pool, bridge,
default cores/memory) sourced by `create-proxmox-resource.sh`. Add new
cross-script config here instead of duplicating it per-script.
default cores/memory, `NIX_CACHE_HOST`, `LAN_DOMAIN`) sourced by
`create-proxmox-resource.sh` and `scripts/installer/auto-install.sh`. Add
new cross-script config here instead of duplicating it per-script.
- `scripts/bump-nixpkgs-release.sh` — bumps `flake.nix`'s `nixpkgs.url`/
`home-manager.url` in place. Exists because flake input URLs can't
reference `variables.nix` (confirmed empirically — `nix flake metadata`
+26 -5
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@@ -8,10 +8,13 @@ lives here.
The installer provides a small NixOS install environment (ISO, or the same
image netbooted via PXE) with SSH access, Git support, and an interactive
installation script.
Logging in as any user (root or `nixos`) runs `/etc/auto-install.sh`,
discovers available hosts from this same flake, lets the operator choose a
target, applies that host's Disko storage configuration, installs NixOS, and
reboots.
Logging in as any user (root or `nixos`) runs
`/etc/nixos-installer/installer/auto-install.sh` (the same file as
`scripts/installer/auto-install.sh` in this repo — see "Installer process"
below for why it's baked in at that path rather than a flat
`/etc/auto-install.sh`), discovers available hosts from this same flake,
lets the operator choose a target, applies that host's Disko storage
configuration, installs NixOS, and reboots.
**This applies to every `nixosConfigurations` target except `lxc-*` hosts —
see "LXC hosts" immediately below for why those are different.**
@@ -192,6 +195,10 @@ default.
`auto-install.sh` still supports the older manual path as a fallback: if a
host's key isn't baked in (`/etc/host-keys`), it checks `/root/host-keys`
next, where you can `scp` a key in after boot, same as before this migration.
If neither has it and the script is running interactively (an actual
operator at the other end of stdin, not an unattended run), it prompts for
an arbitrary directory to check (a mounted USB stick, another filesystem,
etc.) and copies the key pair into `/root/host-keys` from there if found.
## Storage
@@ -217,7 +224,21 @@ entirely (see "LXC hosts" above), so it never reaches this code path.
## Installer process
`/etc/auto-install.sh`:
`scripts/installer/auto-install.sh` is a real, version-controlled shell
script — not an inline Nix string. It sources `scripts/env.sh` for
`LAN_DOMAIN` itself (same as every other script in `scripts/`), so it
behaves identically whether it's run straight from a git checkout (e.g.
manually, from a stock NixOS ISO that isn't this repo's own installer
image) or from inside the built installer image. That's also why it's
baked in at `/etc/nixos-installer/installer/auto-install.sh` rather than a
flat `/etc/auto-install.sh` — `modules/installer/common.nix` bakes
`scripts/env.sh` in alongside it at `/etc/nixos-installer/env.sh`,
preserving the same relative layout (`installer/auto-install.sh` ->
`../env.sh`) the checked-out repo has, so the script's own
`source ".../env.sh"` line resolves correctly in both places without any
Nix-level templating.
Once running, it:
1. Queries `nixosConfigurations` from this flake over the network (`git+https://<lanDomain>/beatzaplenty/nixos.git`) — this happens at *install* time, not build time, so a generic installer image always sees whatever hosts are currently committed, without needing a rebuild.
2. Presents them as a menu; confirms the choice.
+15 -134
View File
@@ -45,140 +45,21 @@
disko
];
# Write auto-install script to /root
etc."auto-install.sh" = {
text = ''
#!/run/current-system/sw/bin/bash
set -eux
# Auto-install script, kept as a real, version-controlled shell file at
# scripts/installer/auto-install.sh rather than an inline Nix string.
# It sources scripts/env.sh itself (for LAN_DOMAIN, same as every other
# script in this repo) rather than relying on Nix-level templating, so
# it behaves identically whether it's run straight from a git checkout
# or from here -- baking scripts/env.sh in alongside it at a matching
# relative path (installer/auto-install.sh -> ../env.sh) is what makes
# that resolve correctly in both places.
etc = {
"nixos-installer/env.sh".source = ../../scripts/env.sh;
set -euo pipefail
export FLAKE_BASE_URL="git+https://${vars.lanDomain}/beatzaplenty/nixos.git"
echo "Fetching available NixOS hosts from flake..."
# Two categories deliberately excluded from the menu:
# lxc-* — these build a config.system.build.tarball meant for
# `pct restore` on Proxmox directly, not an install.
# Running nixos-install against one here would
# bind-mount / onto /mnt and then refuse to touch the
# filesystem it's currently running on — see
# docs/auto-installer.md.
# installer — this *is* the installer image's own flake target,
# not a deployable host; "installing" it means
# nixos-install-ing a copy of the installer into
# itself.
mapfile -t options < <(
nix eval --json --no-use-registries --no-accept-flake-config --extra-experimental-features "flakes nix-command" \
"''${FLAKE_BASE_URL}#nixosConfigurations" \
--apply builtins.attrNames \
| jq -r '.[]
| select(startswith("lxc-") | not)
| select(. != "installer")'
)
if [[ ''${#options[@]} -eq 0 ]]; then
echo "ERROR: No NixOS hosts found in ''${FLAKE_BASE_URL}#nixosConfigurations" >&2
exit 1
fi
echo "Note: lxc-* targets aren't installed this way — build them with"
echo " nix build .#nixosConfigurations.<name>.config.system.build.tarball"
echo "and 'pct restore' the result on Proxmox directly. See docs/auto-installer.md."
echo "Choose the flake profile to install:"
select choice in "''${options[@]}"; do
if [[ -n "$choice" ]]; then
echo "You selected: $choice"
break
else
echo "Invalid selection. Try again."
fi
done
echo "Starting install with flake: ''${FLAKE_BASE_URL}#''${choice}"
# Optional: confirm before proceeding
read -rp "Proceed with installation? (y/N): " confirm
if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
echo "Aborted."
exit 1
fi
# A nix-cache host is *the* substituter/remote-builder for every other
# host once installed (its own config explicitly excludes itself from
# using either — see buildType != "nix-cache" in the nixos flake.nix).
# Installing one shouldn't depend on a nix-cache substituter either,
# for the same reason — plus in practice "nix-cache" only resolves over
# Tailscale, which a fresh installer environment was never connected to
# anyway, so it's dead weight even for non-nix-cache installs until
# that's sorted out. Override it away here specifically for nix-cache
# targets to keep install-time behaviour consistent with run-time.
nix_extra_opts=()
if [[ "''${choice}" == *-nix-cache ]]; then
echo "Installing a nix-cache host — skipping the nix-cache substituter."
nix_extra_opts+=(--option substituters "https://cache.nixos.org/")
fi
# Every host reachable through this menu has a Disko config (lxc-*
# is filtered out above, and is the only category that doesn't —
# see docs/auto-installer.md), so this can run unconditionally: no
# need to probe the flake first and branch on whether Disko applies.
disko --mode destroy,format,mount \
--flake "''${FLAKE_BASE_URL}#''${choice}" "''${nix_extra_opts[@]}" --yes-wipe-all-disks
# sops-nix derives this host's decryption key from its own SSH host key
# at *activation* time, which runs before systemd would otherwise
# generate one on first boot. Without pre-seeding it here, secrets
# (including the login password) fail to decrypt on first boot.
# Generate the key with scripts/secrets/prepare-host-key.sh first.
#
# Two places a key can come from, checked in order:
# /etc/host-keys — baked into this image at build time (see
# modules/installer/host-keys.nix; only present
# if built with NIXOS_HOST_KEYS_DIR set)
# /root/host-keys — scp'd in manually after boot (older fallback,
# still supported for images built without keys)
mkdir -p /root/host-keys
if [[ -f "/etc/host-keys/''${choice}_ssh_host_ed25519_key" ]]; then
echo "Found baked-in SSH host key for ''${choice}, installing to target..."
install -D -m 0600 "/etc/host-keys/''${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
install -D -m 0644 "/etc/host-keys/''${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
elif [[ -f "/root/host-keys/''${choice}_ssh_host_ed25519_key" ]]; then
echo "Found pre-seeded SSH host key for ''${choice}, installing to target..."
install -D -m 0600 "/root/host-keys/''${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
install -D -m 0644 "/root/host-keys/''${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
else
echo "WARNING: no SSH host key found for ''${choice} (checked /etc/host-keys and /root/host-keys)"
echo "sops-nix secrets (including the login password) will NOT decrypt on first boot."
echo "Run scripts/secrets/prepare-host-key.sh for host ''${choice} on your admin workstation first,"
echo "then either rebuild this image with NIXOS_HOST_KEYS_DIR set, or scp the result to"
echo "/root/host-keys/ on this machine."
read -rp "Continue without a pre-seeded key anyway? (y/N): " skip_key
if [[ ! "$skip_key" =~ ^[Yy]$ ]]; then
echo "Aborted."
exit 1
fi
fi
mkdir -p /mnt/install-tmp
export TMPDIR=/mnt/install-tmp
nixos-install \
--flake "''${FLAKE_BASE_URL}#''${choice}" \
"''${nix_extra_opts[@]}" \
--no-root-password
rm -rf /mnt/install-tmp
# Redundant copy of the host's private key — the real one is now at
# /etc/ssh/ssh_host_ed25519_key. Nothing NixOS-managed ever cleans this
# up on its own since it was written imperatively, not declaratively.
rm -rf /root/host-keys
sleep 10
reboot
'';
mode = "0755";
"nixos-installer/installer/auto-install.sh" = {
source = ../../scripts/installer/auto-install.sh;
mode = "0755";
};
};
};
@@ -192,7 +73,7 @@
# file-copying/chown.
programs.bash.loginShellInit = ''
if [ -n "$PS1" ] && [ ! -e "$HOME/.auto_install_ran" ]; then
sudo /etc/auto-install.sh
sudo /etc/nixos-installer/installer/auto-install.sh
touch "$HOME/.auto_install_ran"
fi
'';
+6
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@@ -82,6 +82,12 @@ export PVE1_HOST PVE_TEST_HOST PROXMOX_HOST PROXMOX_SSH_USER PROXMOX_STORAGE \
: "${NIX_CACHE_HOST:=nix-cache}"
export NIX_CACHE_HOST
# Matches variables.nix's lanDomain (the Gitea host this flake's own repo
# is served from -- see scripts/installer/auto-install.sh's FLAKE_BASE_URL)
# -- update both if it ever changes.
: "${LAN_DOMAIN:=gitea.lan.ddnsgeek.com}"
export LAN_DOMAIN
# nix_extra_opts: call as a plain statement (NOT inside $(...)/<(...) --
# that forks a subshell, and the whole point is exporting a decision back
# into *this* shell) to populate the global NIX_OPTS array with whatever
+166
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@@ -0,0 +1,166 @@
#!/usr/bin/env nix-shell
#!nix-shell -i bash -p jq disko nixos-install-tools
# shellcheck shell=bash
# The only genuinely external tools this script calls directly: `jq`
# (parsing the `nix eval` host list) and `disko`/`nixos-install` (the
# install itself). Everything disko shells out to internally
# (parted/sgdisk/mkfs.*/zfs/...) is self-contained -- disko's own
# generated scripts hardcode absolute Nix store paths for those, they
# don't rely on this script's PATH at all (confirmed by inspecting a
# generated system.build.formatScript). The built installer image
# (modules/installer/common.nix) already has all three in
# environment.systemPackages, so this nix-shell wrapper is a fast no-op
# there; it's what makes the script also work standalone (e.g. run
# directly from a checkout on a stock ISO), where they aren't.
set -eux
set -euo pipefail
# shellcheck source=../env.sh
source "$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)/env.sh"
export FLAKE_BASE_URL="git+https://${LAN_DOMAIN}/beatzaplenty/nixos.git"
echo "Fetching available NixOS hosts from flake..."
# Two categories deliberately excluded from the menu:
# lxc-* — these build a config.system.build.tarball meant for
# `pct restore` on Proxmox directly, not an install.
# Running nixos-install against one here would
# bind-mount / onto /mnt and then refuse to touch the
# filesystem it's currently running on — see
# docs/auto-installer.md.
# installer — this *is* the installer image's own flake target,
# not a deployable host; "installing" it means
# nixos-install-ing a copy of the installer into
# itself.
mapfile -t options < <(
nix eval --json --no-use-registries --no-accept-flake-config --extra-experimental-features "flakes nix-command" \
"${FLAKE_BASE_URL}#nixosConfigurations" \
--apply builtins.attrNames \
| jq -r '.[]
| select(startswith("lxc-") | not)
| select(. != "installer")'
)
if [[ ${#options[@]} -eq 0 ]]; then
echo "ERROR: No NixOS hosts found in ${FLAKE_BASE_URL}#nixosConfigurations" >&2
exit 1
fi
echo "Note: lxc-* targets aren't installed this way — build them with"
echo " nix build .#nixosConfigurations.<name>.config.system.build.tarball"
echo "and 'pct restore' the result on Proxmox directly. See docs/auto-installer.md."
echo "Choose the flake profile to install:"
select choice in "${options[@]}"; do
if [[ -n "$choice" ]]; then
echo "You selected: $choice"
break
else
echo "Invalid selection. Try again."
fi
done
echo "Starting install with flake: ${FLAKE_BASE_URL}#${choice}"
# Optional: confirm before proceeding
read -rp "Proceed with installation? (y/N): " confirm
if [[ ! "$confirm" =~ ^[Yy]$ ]]; then
echo "Aborted."
exit 1
fi
# A nix-cache host is *the* substituter/remote-builder for every other
# host once installed (its own config explicitly excludes itself from
# using either — see buildType != "nix-cache" in the nixos flake.nix).
# Installing one shouldn't depend on a nix-cache substituter either,
# for the same reason — plus in practice "nix-cache" only resolves over
# Tailscale, which a fresh installer environment was never connected to
# anyway, so it's dead weight even for non-nix-cache installs until
# that's sorted out. Override it away here specifically for nix-cache
# targets to keep install-time behaviour consistent with run-time.
nix_extra_opts=()
if [[ "${choice}" == *-nix-cache ]]; then
echo "Installing a nix-cache host — skipping the nix-cache substituter."
nix_extra_opts+=(--option substituters "https://cache.nixos.org/")
fi
# Every host reachable through this menu has a Disko config (lxc-*
# is filtered out above, and is the only category that doesn't —
# see docs/auto-installer.md), so this can run unconditionally: no
# need to probe the flake first and branch on whether Disko applies.
disko --mode destroy,format,mount \
--flake "${FLAKE_BASE_URL}#${choice}" "${nix_extra_opts[@]}" --yes-wipe-all-disks
# sops-nix derives this host's decryption key from its own SSH host key
# at *activation* time, which runs before systemd would otherwise
# generate one on first boot. Without pre-seeding it here, secrets
# (including the login password) fail to decrypt on first boot.
# Generate the key with scripts/secrets/prepare-host-key.sh first.
#
# Two places a key can come from, checked in order:
# /etc/host-keys — baked into this image at build time (see
# modules/installer/host-keys.nix; only present
# if built with NIXOS_HOST_KEYS_DIR set)
# /root/host-keys — scp'd in manually after boot (older fallback,
# still supported for images built without keys)
mkdir -p /root/host-keys
if [[ -f "/etc/host-keys/${choice}_ssh_host_ed25519_key" ]]; then
echo "Found baked-in SSH host key for ${choice}, installing to target..."
install -D -m 0600 "/etc/host-keys/${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
install -D -m 0644 "/etc/host-keys/${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
elif [[ -f "/root/host-keys/${choice}_ssh_host_ed25519_key" ]]; then
echo "Found pre-seeded SSH host key for ${choice}, installing to target..."
install -D -m 0600 "/root/host-keys/${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
install -D -m 0644 "/root/host-keys/${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
else
# Third place a key can come from: an arbitrary path the operator
# points at interactively (e.g. a USB stick, a mount from another
# machine) -- only offered when there's an actual human at the other
# end of stdin to ask, never in a non-interactive run.
key_copied=0
if [[ -t 0 ]]; then
echo "No SSH host key found for ${choice} (checked /etc/host-keys and /root/host-keys)."
read -rp "Path to a directory containing ${choice}_ssh_host_ed25519_key(.pub) (blank to skip): " key_src_dir
if [[ -n "$key_src_dir" && -f "${key_src_dir}/${choice}_ssh_host_ed25519_key" && -f "${key_src_dir}/${choice}_ssh_host_ed25519_key.pub" ]]; then
cp "${key_src_dir}/${choice}_ssh_host_ed25519_key" "${key_src_dir}/${choice}_ssh_host_ed25519_key.pub" /root/host-keys/
key_copied=1
elif [[ -n "$key_src_dir" ]]; then
echo "WARNING: ${choice}_ssh_host_ed25519_key(.pub) not found in ${key_src_dir}."
fi
fi
if [[ "$key_copied" -eq 1 ]]; then
echo "Copied SSH host key for ${choice} from ${key_src_dir}, installing to target..."
install -D -m 0600 "/root/host-keys/${choice}_ssh_host_ed25519_key" /mnt/etc/ssh/ssh_host_ed25519_key
install -D -m 0644 "/root/host-keys/${choice}_ssh_host_ed25519_key.pub" /mnt/etc/ssh/ssh_host_ed25519_key.pub
else
echo "WARNING: no SSH host key found for ${choice} (checked /etc/host-keys and /root/host-keys)"
echo "sops-nix secrets (including the login password) will NOT decrypt on first boot."
echo "Run scripts/secrets/prepare-host-key.sh for host ${choice} on your admin workstation first,"
echo "then either rebuild this image with NIXOS_HOST_KEYS_DIR set, scp the result to"
echo "/root/host-keys/ on this machine, or point at it when prompted above."
read -rp "Continue without a pre-seeded key anyway? (y/N): " skip_key
if [[ ! "$skip_key" =~ ^[Yy]$ ]]; then
echo "Aborted."
exit 1
fi
fi
fi
mkdir -p /mnt/install-tmp
export TMPDIR=/mnt/install-tmp
nixos-install \
--flake "${FLAKE_BASE_URL}#${choice}" \
"${nix_extra_opts[@]}" \
--no-root-password
rm -rf /mnt/install-tmp
# Redundant copy of the host's private key — the real one is now at
# /etc/ssh/ssh_host_ed25519_key. Nothing NixOS-managed ever cleans this
# up on its own since it was written imperatively, not declaratively.
rm -rf /root/host-keys
sleep 10
reboot
+12 -4
View File
@@ -45,12 +45,20 @@
# the installer image's nixos/root users.
adminSshKey = "ssh-rsa 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 wayne@stream";
# Prestaged wifi credentials for the gui host's NetworkManager profile
# (modules/networking/wifi.nix). Leave blank until the bare-metal
# hardware profile is wired up — an empty ssid disables the profile
# rather than creating a broken empty one.
# Prestaged wifi SSID for the gui host's NetworkManager profile
# (modules/networking/wifi.nix). The password is not here -- it's
# sops-encrypted in secrets/gui.yaml (wifi-password) instead, since this
# file isn't a secret store.
wifiSsid = "nbn-fttp-net-5G";
# Bare-metal gui host's two disks for a ZFS RAID0 (striped) root pool
# (modules/disko/baremetal.nix). Only used transiently at disko-format
# time (partitioning); the resulting fileSystems/zpool import reference
# by-partlabel/by-id paths afterward regardless, same as
# modules/disko/proxmox.nix's own plain "/dev/sda".
guiRootDisk1 = "/dev/sda";
guiRootDisk2 = "/dev/sdb";
# System
timeZone = "Australia/Brisbane";