Simplify installer into shared common.nix + per-platform targets

Replaces the single monolithic installer.nix (preserved as installer_old.nix for reference) with a shared common.nix carrying the install-script/user/SSH baseline, consumed by per-platform targets (installer.nix for netboot/ISO, new proxmox-lxc.nix for the Proxmox LXC-based flow). flake.nix drops the nixos-generators input in favor of building images directly from each nixosConfiguration's system.build.isoImage/tarball. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-07-19 13:12:46 +10:00
parent 48a879e2a0
commit a90e736743
6 changed files with 464 additions and 254 deletions
@@ -0,0 +1,127 @@
+{ pkgs, lib, ... }:
+
+{
+  networking.useDHCP = lib.mkDefault true;
+
+  time.timeZone = "Australia/Brisbane";
+
+  environment.systemPackages = with pkgs; [
+    git
+    curl
+    jq
+    parted
+    e2fsprogs
+    btrfs-progs
+    util-linux
+    disko
+  ];
+
+  programs.git = {
+    enable = true;
+
+    config = {
+      credential.helper = "store --file=/etc/git-credentials";
+    };
+  };
+
+  environment.etc."git-credentials".text =
+    "https://beatzaplenty:294be99829703536e02fdeed893137f1d8d96b76@gitea.lan.ddnsgeek.com";
+
+
+  services.openssh.enable = true;
+
+  services.openssh.settings = {
+    PermitRootLogin = "yes";
+    PasswordAuthentication = true;
+  };
+
+
+  users.users.root = {
+    hashedPassword =
+      "$6$Kwv9KAyvcurAViQF$H4.u3feqGE7lVoNgkFXhE3n2Pmo//9JYDTCz8ifrVHBxPjwa1xMby7tEZ8Bpt5MXs9Rkx6/YbZWxs5CpH0s/70";
+  };
+
+
+  users.users.nixos = {
+    isNormalUser = true;
+
+    extraGroups = [
+      "wheel"
+    ];
+
+    shell = pkgs.bashInteractive;
+
+    hashedPassword =
+      "$6$Kwv9KAyvcurAViQF$H4.u3feqGE7lVoNgkFXhE3n2Pmo//9JYDTCz8ifrVHBxPjwa1xMby7tEZ8Bpt5MXs9Rkx6/YbZWxs5CpH0s/70";
+
+    openssh.authorizedKeys.keys = [
+      "ssh-rsa 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 wayne@stream"
+    ];
+  };
+
+
+  system.stateVersion = "26.05";
+
+    # Write auto-install script to /root
+  environment.etc."auto-install.sh".text = ''
+    #!/run/current-system/sw/bin/bash
+    set -eux
+
+    set -euo pipefail
+
+export FLAKE_BASE_URL="git+https://gitea.lan.ddnsgeek.com/beatzaplenty/nixos.git"
+
+echo "Fetching available NixOS hosts from flake..."
+mapfile -t options < <(
+  nix eval --json --no-use-registries --no-accept-flake-config --extra-experimental-features "flakes nix-command" \
+    "''${FLAKE_BASE_URL}#nixosConfigurations" \
+    --apply builtins.attrNames \
+  | jq -r '.[]'
+)
+
+if [[ ''${#options[@]} -eq 0 ]]; then
+  echo "ERROR: No NixOS hosts found in ''${FLAKE_BASE_URL}#nixosConfigurations" >&2
+  exit 1
+fi
+
+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
+    
+if nix eval --refresh --json  --extra-experimental-features "flakes nix-command" "''${FLAKE_BASE_URL}#nixosConfigurations.''${choice}.config.disko.devices.disk.main.device" >/dev/null 2>&1; then
+    disko --mode destroy,format,mount \
+        --flake "''${FLAKE_BASE_URL}#''${choice}" --yes`
+else
+    echo "Selected host has no Disko configuration."
+fi
+
+mkdir -p /mnt/install-tmp
+export TMPDIR=/mnt/install-tmp
+
+nixos-install \
+    --flake "''${FLAKE_BASE_URL}#''${choice}" \
+    --no-root-password
+
+
+    rm -rf /mnt/install-tmp
+    sleep 10
+    reboot
+  '';
+
+    environment.etc."auto-install.sh".mode = "0755";
+}