Add installer

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

README.md

@@ -41,7 +41,8 @@ Any `options.nix` files create custom option definitions when present.
 
 Below is a table of all hosts, with links to their respective README files, which may provide further details and/or post-installation checklists.
 
-| Host     | README                                             |
-|----------|----------------------------------------------------|
-| `eirene` | [hosts/eirene/README.md](./hosts/eirene/README.md) |
-| `elara`  | [hosts/elara/README.md](./hosts/elara/README.md) |
+| Host        | README                                               |
+|-------------|------------------------------------------------------|
+| `installer` | [hosts/installer/README.md](./hosts/installer/README.md) |
+| `eirene`    | [hosts/eirene/README.md](./hosts/eirene/README.md)   |
+| `elara`     | [hosts/elara/README.md](./hosts/elara/README.md)     |

flake.nix

@@ -69,6 +69,14 @@
     { self, nixpkgs, ... }@inputs:
     {
       nixosConfigurations = {
+        installer = nixpkgs.lib.nixosSystem {
+          specialArgs = {
+            inherit inputs;
+          };
+          system = "x86_64-linux";
+          modules = [ ./hosts/installer ];
+        };
+
         eirene = nixpkgs.lib.nixosSystem {
           specialArgs = {
             inherit inputs;

hosts/common/system/configs/ssh/default.nix

@@ -2,6 +2,7 @@
 {
   programs.ssh = {
     knownHosts = {
+      installer.publicKeyFile = ../../../../installer/secrets/ssh_host_ed25519_key.pub;
       eirene.publicKeyFile = ../../../../eirene/secrets/ssh_host_ed25519_key.pub;
       elara.publicKeyFile = ../../../../elara/secrets/ssh_host_ed25519_key.pub;
     };

hosts/common/user/configs/console/ssh/default.nix

@@ -14,6 +14,7 @@
       enable = true;
       addKeysToAgent = "yes";
       userKnownHostsFile = lib.strings.concatStringsSep " " [
+        ../../../../../installer/secrets/ssh_host_ed25519_key.pub
         ../../../../../eirene/secrets/ssh_host_ed25519_key.pub
         ../../../../../elara/secrets/ssh_host_ed25519_key.pub
       ];

hosts/elara/README.md

@@ -1,4 +1,4 @@
-# sas
+# elara
 
 ## Post-Install Checklist
 

hosts/elara/default.nix

@@ -6,6 +6,8 @@
     (import ./format.nix {
       device = "/dev/disk/by-id/usb-SanDisk_Ultra_Trek_0501990ddf7236633373ea7dd2e6715f954e2dbb35cadae343333f0562cda6aa7ec80000000000000000000042c100baff1e08109f5581078ea6d9c3-0:0";
     })
+    ./hardware.nix
+    # elara runs on an external drive on eirene
     ../eirene/hardware.nix
     ../eirene/display.nix
     ../common/system/configs/bluetooth
@@ -51,12 +53,6 @@
   i18n.defaultLocale = "en_US.UTF-8";
   sops.defaultSopsFile = ./secrets/secrets.yaml;
 
-  boot.initrd.kernelModules = [
-    "xhci_pci"
-    "usb_storage"
-    "sd_mod"
-  ];
-
   environment.impermanence.device =
     config.disko.devices.disk.usb.content.partitions.root.content.name;
 }

hosts/elara/hardware.nix

@@ -0,0 +1,8 @@
+{ ... }:
+{
+  boot.initrd.kernelModules = [
+    "xhci_pci"
+    "usb_storage"
+    "sd_mod"
+  ];
+}

hosts/installer/README.md

@@ -0,0 +1 @@
+# installer

hosts/installer/default.nix

@@ -0,0 +1,46 @@
+{ config, inputs, ... }:
+{
+  imports = [
+    ../../lib
+    inputs.disko.nixosModules.disko
+    (import ./format.nix {
+      device = "/dev/disk/by-id/usb-SanDisk_Ultra_Trek_050133f0afb69de86a475ee8d2ad97e4916cce11764cffba9ab262d42a7d0d2f66460000000000000000000039b7a3b8ff990a109f5581078ea6e86a-0:0";
+    })
+    ./hardware.nix
+    ../common/system/configs/boot
+    ../common/system/configs/btop
+    ../common/system/configs/btrfs
+    ../common/system/configs/fastfetch
+    ../common/system/configs/getty
+    ../common/system/configs/git
+    ../common/system/configs/gpg-agent
+    ../common/system/configs/impermanence
+    ../common/system/configs/lsof
+    ../common/system/configs/ncdu
+    ../common/system/configs/neovim
+    ../common/system/configs/networking
+    ../common/system/configs/nix
+    ../common/system/configs/nix-cleanup
+    ../common/system/configs/nix-ld
+    ../common/system/configs/nixpkgs
+    ../common/system/configs/ntp
+    ../common/system/configs/ranger
+    ../common/system/configs/sops
+    ../common/system/configs/ssh
+    ../common/system/configs/system
+    ../common/system/configs/timezone
+    ../common/system/configs/tmux
+    ../common/system/configs/tree
+    ../common/system/configs/users
+    ../common/system/configs/wget
+    ../common/system/configs/zsh
+    ./users/nick
+  ];
+
+  networking.hostName = "installer";
+  i18n.defaultLocale = "en_US.UTF-8";
+  sops.defaultSopsFile = ./secrets/secrets.yaml;
+
+  environment.impermanence.device =
+    config.disko.devices.disk.usb.content.partitions.root.content.name;
+}

hosts/installer/format.nix

@@ -0,0 +1,74 @@
+{
+  device ? throw "device argument is required",
+  ...
+}:
+{
+  disko.devices = {
+    disk.usb = {
+      inherit device;
+      type = "disk";
+      content = {
+        type = "gpt";
+        partitions = {
+          boot = {
+            name = "boot";
+            size = "1M";
+            type = "EF02";
+          };
+          esp = {
+            name = "esp";
+            size = "512M";
+            type = "EF00";
+            content = {
+              type = "filesystem";
+              format = "vfat";
+              mountpoint = "/boot";
+              mountOptions = [ "umask=0077" ];
+            };
+          };
+          root = {
+            name = "root";
+            size = "100%";
+            content = {
+              name = "usb";
+              type = "luks";
+              settings = {
+                allowDiscards = true;
+              };
+              content = {
+                type = "btrfs";
+                extraArgs = [ "-f" ];
+                subvolumes = {
+                  "@" = {
+                    mountpoint = "/";
+                  };
+                  "@persist" = {
+                    mountpoint = "/persist";
+                    mountOptions = [
+                      "compress=zstd"
+                      "noatime"
+                    ];
+                  };
+                  "@nix" = {
+                    mountpoint = "/nix";
+                    mountOptions = [
+                      "compress=zstd"
+                      "noatime"
+                    ];
+                  };
+                  "@cache" = {
+                    mountpoint = "/cache";
+                    mountOptions = [
+                      "compress=zstd"
+                      "noatime"
+                    ];
+                  };
+                };
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}

hosts/installer/hardware.nix

@@ -0,0 +1,17 @@
+{ ... }:
+{
+  hardware.enableAllFirmware = true;
+
+  boot.initrd.kernelModules = [
+    "nvme"
+    "ahci"
+    "usbhid"
+    "xhci_pci"
+    "usb_storage"
+    "sd_mod"
+  ];
+
+  nixpkgs.hostPlatform = "x86_64-linux";
+
+  services.fstrim.enable = true;
+}

hosts/installer/secrets/ssh_host_ed25519_key.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHEIK+JkxkC0E8w0IF59gtpG55JBS/osqs1B7VhsI0eI nick@eirene

hosts/installer/users/nick/default.nix

@@ -0,0 +1,88 @@
+{ config, lib, ... }:
+let
+  # FIXME: https://github.com/NixOS/nixpkgs/issues/24570
+  # FIXME: https://github.com/NixOS/nixpkgs/issues/305643
+  user = "nick";
+  home = "/home/nick";
+in
+{
+  imports = [
+    ../../../common/user/configs/options.nix
+    (import ../../../common/user/configs/console/bashmount { inherit user home; })
+    (import ../../../common/user/configs/console/btop { inherit user home; })
+    (import ../../../common/user/configs/console/fastfetch { inherit user home; })
+    (import ../../../common/user/configs/console/git { inherit user home; })
+    (import ../../../common/user/configs/console/gpg-agent { inherit user home; })
+    (import ../../../common/user/configs/console/home-manager { inherit user home; })
+    (import ../../../common/user/configs/console/ncdu { inherit user home; })
+    (import ../../../common/user/configs/console/neovim { inherit user home; })
+    (import ../../../common/user/configs/console/nix-develop { inherit user home; })
+    (import ../../../common/user/configs/console/nix-direnv { inherit user home; })
+    (import ../../../common/user/configs/console/nixpkgs { inherit user home; })
+    (import ../../../common/user/configs/console/ranger { inherit user home; })
+    (import ../../../common/user/configs/console/sops { inherit user home; })
+    (import ../../../common/user/configs/console/ssh { inherit user home; })
+    (import ../../../common/user/configs/console/tmux { inherit user home; })
+    (import ../../../common/user/configs/console/tree { inherit user home; })
+    (import ../../../common/user/configs/console/wget { inherit user home; })
+    (import ../../../common/user/configs/console/xdg { inherit user home; })
+    (import ../../../common/user/configs/console/zsh { inherit user home; })
+  ];
+
+  # echo "password" | mkpasswd -s
+  sops.secrets."${user}-password" = {
+    sopsFile = ../../../../secrets/personal/secrets.yaml;
+    key = "password";
+    neededForUsers = true;
+  };
+
+  users.users.${user} = {
+    inherit home;
+    isNormalUser = true;
+    email = "nick@karaolidis.com";
+    fullName = "Nikolaos Karaolidis";
+    description = "Nikolaos Karaolidis";
+    hashedPasswordFile = config.sops.secrets."${user}-password".path;
+    extraGroups = [ "wheel" ];
+    linger = true;
+    uid = lib.strings.toInt (builtins.readFile ./uid);
+  };
+
+  services.getty.autologinUser = user;
+
+  home-manager.users.${user} = {
+    home = {
+      username = user;
+      homeDirectory = home;
+    };
+
+    sops.secrets = {
+      "git/credentials" = {
+        sopsFile = ../../../../secrets/personal/secrets.yaml;
+        path = "${home}/.config/git/credentials";
+      };
+      "git/cookies" = {
+        sopsFile = ../../../../secrets/personal/secrets.yaml;
+        path = "${home}/.config/git/cookies";
+      };
+
+      "ssh/personal/git/key" = {
+        sopsFile = ../../../../secrets/personal/secrets.yaml;
+        path = "${home}/.ssh/ssh_git_personal_ed25519_key";
+      };
+      "ssh/personal/git/pass".sopsFile = ../../../../secrets/personal/secrets.yaml;
+
+      "gpg/personal/key".sopsFile = ../../../../secrets/personal/secrets.yaml;
+      "gpg/personal/pass".sopsFile = ../../../../secrets/personal/secrets.yaml;
+    };
+
+    programs.ssh.matchBlocks = {
+      "github.com" = {
+        hostname = "github.com";
+        user = "git";
+        identityFile = "${home}/.ssh/ssh_git_personal_ed25519_key";
+        extraOptions.StrictHostKeyChecking = "accept-new";
+      };
+    };
+  };
+}

hosts/installer/users/nick/uid

@@ -0,0 +1 @@
+1000

lib/scripts/add-host.sh

@@ -23,7 +23,7 @@ for SOPS_FILE in $(find . -type f -name "sops.yaml"); do
 done
 
 sed -i "/knownHosts = {/a\      ${HOST}.publicKeyFile = ../../../../${HOST}/secrets/ssh_host_ed25519_key.pub;" ./hosts/common/system/configs/ssh/default.nix
-sed -i "/userKnownHostsFile = lib.strings.concatStringsSep " " [/a\      \${../../../../../${HOST}/secrets/ssh_host_ed25519_key.pub}" ./hosts/common/user/configs/console/ssh/default.nix
+sed -i "/userKnownHostsFile = lib.strings.concatStringsSep \" \" \[/a\        ../../../../../${HOST}/secrets/ssh_host_ed25519_key.pub" ./hosts/common/user/configs/console/ssh/default.nix
 
 "$(dirname "$0")/update-keys.sh" "$2"
 

lib/scripts/install.sh

@@ -3,7 +3,6 @@
 set -o errexit
 set -o nounset
 set -o pipefail
-set -x
 
 check_root() {
   if [[ "${EUID}" -ne 0 ]]; then
@@ -22,11 +21,10 @@ check_network() {
 
   echo "No network connection detected."
   echo "Would you like to connect to a Wi-Fi network? [y/N]"
-
   read -r connect_wifi
 
   if ! [[ "${connect_wifi}" =~ ^([yY][eE][sS]|[yY])$ ]]; then
-    echo "Please connect to a network before proceeding."
+    echo "Connect to a network before proceeding."
     exit 1
   fi
 
@@ -34,33 +32,33 @@ check_network() {
 }
 
 setup_wifi() {
-  echo "Available network interfaces:"
-  ip link show | grep -E '^[0-9]+:' | awk '{print $2}' | tr -d ':'
+  echo "Available Wi-Fi interfaces:"
+  nmcli device status | awk '$2 == "wifi" {print $1}'
 
-  echo "Enter the network interface you want to use:"
+  echo "Enter the Wi-Fi interface you want to use:"
   read -r interface
 
-  echo "Enter the SSID of the open network:"
+  echo "Scanning for Wi-Fi networks..."
+  nmcli device wifi rescan
+
+  echo "Available Wi-Fi networks:"
+  nmcli device wifi list
+
+  echo "Enter the SSID of the network:"
   read -r ssid
 
-  echo "Do you want to connect to an open network? [y/N]"
+  echo "Is this network open? [y/N]"
   read -r open_network
 
   if [[ "${open_network}" =~ ^([yY][eE][sS]|[yY])$ ]]; then
-    wpa_supplicant -i "${interface}" -c <(wpa_passphrase "${ssid}") -B
+    nmcli device wifi connect "${ssid}" ifname "${interface}"
   else
     echo "Enter the passphrase:"
     read -rs passphrase
-
-    wpa_passphrase "${ssid}" "${passphrase}" > wifi.conf
-    wpa_supplicant -i "${interface}" -c wifi.conf -B
-    rm wifi.conf
+    nmcli device wifi connect "${ssid}" password "${passphrase}" ifname "${interface}"
   fi
 
-  dhcpcd
-
   echo "Waiting for a network connection..."
-
   for i in {1..10}; do
     if ping -c 1 google.com &>/dev/null; then
       echo "Connected to the network successfully."
@@ -148,12 +146,12 @@ main() {
       copy_keys
       install
       copy_config
-      echo "Installation complete. Please reboot your system."
+      echo "Installation complete. Reboot your system."
       ;;
     2)
       prepare_disk "mount"
       install
-      echo "Repair complete. Please reboot your system."
+      echo "Repair complete. Reboot your system."
       ;;
     *)
       echo "Invalid choice."