lightdm doesnt work go back to gdm

This reverts commit 98e44f40b2.

README.org

@@ -1,4 +1,4 @@
-* Minimal installer for NixOS using ZFS encrypted root
+* Minimal NixOS Root on ZFS configuration
 This repo contains a minimal set of configuration needed for
 installing NixOS on a computer with ZFS as root filesystem.
 
@@ -8,18 +8,17 @@ LICENSE
 configuration.nix   <- configuration shared by all hosts
 flake.lock
 flake.nix
-hosts/nixos/default.nix  <- per-host configuration
-hosts/nixos/sshUnlock.txt
+hosts/exampleHost/default.nix  <- per-host configuration
+hosts/exampleHost/sshUnlock.txt
 modules/boot/default.nix
 modules/default.nix
 modules/fileSystems/default.nix
 modules/networking/default.nix
 modules/users/default.nix
-#+end_src text
+#+end_src
 
-* Thanks to
-See [[https://github.com/ne9z/personal-dotfiles][ne9z dotfiles repo]] for an example of how to configure
+Just enough to get you started.
+
+See [[https://github.com/ne9z/personal-dotfiles][my personal dotfiles repo]] for an example of how to configure
 servers and desktop computers in the same git repository, based on
 this template repo you are viewing now.
-
-[[https://openzfs.github.io/openzfs-docs/Getting%20Started/NixOS/Root%20on%20ZFS.html][Official Tutorial]]

configuration.nix

@@ -1,4 +1,12 @@
-{ my-config, zfs-root, inputs, pkgs, lib, ... }: {
+{
+    my-config, zfs-root, inputs, pkgs, lib, ... 
+}: 
+let 
+  kubeMasterIP = "10.1.1.2";
+  kubeMasterHostname = "api.kube";
+  kubeMasterAPIServerPort = 6443;
+in
+{
   # load module config to top-level configuration
   inherit my-config zfs-root;
 
@@ -10,16 +18,50 @@
     throw "refuse to build: git tree is dirty";
 
   system.stateVersion = "22.11";
+ 
+  system.activationScripts = {
+    enableLingering = ''
+      # remove all existing lingering users
+      rm -r /var/lib/systemd/linger
+      mkdir /var/lib/systemd/linger
+      # enable for the subset of declared users
+      touch /var/lib/systemd/linger/marc
+    '';
+  };
+
+  virtualisation.docker.enable = true;
 
   # Enable NetworkManager for wireless networking,
   # You can configure networking with "nmtui" command.
-  networking.useDHCP = true;
-  networking.networkmanager.enable = false;
+  # networking.useDHCP = true;
+  networking.hostName = "tower";
+  networking.networkmanager.enable = true;
+  networking.wireless.iwd.enable = true;
+  networking.networkmanager.wifi.backend = "iwd";
+
+  services.xserver.enable = true;
+  services.xserver.displayManager.gdm.enable = true;
+
+  hardware.pulseaudio.enable = true;
+  hardware.bluetooth.enable = true;
+  programs.hyprland.enable = true;
 
   users.users = {
     root = {
-      initialHashedPassword = "rootHash_placeholder";
-      openssh.authorizedKeys.keys = [ "sshKey_placeholder" ];
+      isNormalUser = false;
+      shell = pkgs.zsh;
+      initialHashedPassword = "$6$0QAYnBqAJtqB12p3$2lb7rAS2sYw49GUJt0L0bAEpZJSv4HZARQjlbYPhexSmeRB71IRMBzXjf3b4rX6fuDxOuDLydP/Kni9uraS5j/";
+      openssh.authorizedKeys.keys = [ "ssh-rsa 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 marc.partensky@gmail.com" ];
+    };
+    marc = {
+      isNormalUser = true;
+      home = "/home/marc";
+      description = "Marc Partensky";
+      extraGroups = ["wheel" "networkmanager" "docker" "seat" "kvm" "video"];
+      # openssh.authorizedKeys.keys = 
+      shell = pkgs.zsh;
+      initialHashedPassword = "$6$0QAYnBqAJtqB12p3$2lb7rAS2sYw49GUJt0L0bAEpZJSv4HZARQjlbYPhexSmeRB71IRMBzXjf3b4rX6fuDxOuDLydP/Kni9uraS5j/";
+      openssh.authorizedKeys.keys = [ "ssh-rsa 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 marc.partensky@gmail.com" ];
     };
   };
 
@@ -36,24 +78,157 @@
 
   services.openssh = {
     enable = lib.mkDefault true;
-    settings = { PasswordAuthentication = lib.mkDefault false; };
+    settings = { PasswordAuthentication = lib.mkDefault true; };
   };
 
+  # kubernetes https://nixos.wiki/wiki/K3s
+  networking.firewall.allowedTCPPorts = [ 6443 5900 ];
+  # services.k3s = {
+  #   enable = true;
+  #   role = "server";
+  #   # TODO describe how to enable zfs snapshotter in containerd
+  #   extraFlags = toString [
+  #     "--container-runtime-endpoint unix:///run/containerd/containerd.sock"
+  #   ];
+  # };
+
+  # kubernetes zfs support
+  # virtualisation.containerd = {
+  #   enable = true;
+  #   settings =
+  #     let
+  #       fullCNIPlugins = pkgs.buildEnv {
+  #         name = "full-cni";
+  #         paths = with pkgs;[
+  #           cni-plugins
+  #           cni-plugin-flannel
+  #         ];
+  #       };
+  #     in {
+  #       plugins."io.containerd.grpc.v1.cri".cni = {
+  #         bin_dir = "${fullCNIPlugins}/bin";
+  #         conf_dir = "/var/lib/rancher/k3s/agent/etc/cni/net.d/";
+  #       };
+  #     };
+  # };
+
+  # kubernetes support
+  # resolve master hostname
+  # networking.extraHosts = "${kubeMasterIP} ${kubeMasterHostname}";
+
+
+  # services.kubernetes = {
+  #   roles = ["master" "node"];
+  #   masterAddress = kubeMasterHostname;
+  #   apiserverAddress = "https://${kubeMasterHostname}:${toString kubeMasterAPIServerPort}";
+  #   easyCerts = true;
+  #   apiserver = {
+  #     securePort = kubeMasterAPIServerPort;
+  #     advertiseAddress = kubeMasterIP;
+  #   };
+
+  #   # use coredns
+  #   addons.dns.enable = true;
+
+  #   # needed if you use swap
+  #   kubelet.extraOpts = "--fail-swap-on=false";
+  # };
+
   boot.zfs.forceImportRoot = lib.mkDefault false;
 
   nix.settings.experimental-features = lib.mkDefault [ "nix-command" "flakes" ];
 
   programs.git.enable = true;
+  programs.zsh.enable = true;
 
   security = {
     doas.enable = lib.mkDefault true;
     sudo.enable = lib.mkDefault false;
   };
 
+  nix = {
+    package = pkgs.nixFlakes;
+    extraOptions = ''
+      experimental-features = nix-command flakes
+    '';
+  };
+
+  systemd.services.tunneltower = {
+      enable = true;
+      description = "Connect to my tower remotely";
+      unitConfig = {
+          # Type = "simple";
+      };
+      serviceConfig = {
+          ExecStart = ''
+          ${pkgs.autossh}/bin/autossh -M 0 \
+          -o ServerAliveInterval=30 \
+          -o ServerAliveCountMax=3 \
+          -o PubkeyAuthentication=yes \
+          -o PasswordAuthentication=no \
+          -NR localhost:42070:localhost:22 \
+          -p 42069 \
+          -i ~/.ssh/id_rsa \
+          marc@207.180.235.56
+          '';
+      };
+      wantedBy = [ "multi-user.target" ];
+  };
+
   environment.systemPackages = builtins.attrValues {
     inherit (pkgs)
-      mg # emacs-like editor
+      k3s
+      autossh
       jq # other programs
+      neovim
+      stow
+      coreutils
+      gnumake
+      bat
+      gnupg
+      home-manager
+      htop
+      kompose
+      kubectl
+      kubernetes
+      killall
+      seatd
+      mcfly
+      sddm
     ;
   };
+
+
+  i18n.defaultLocale = "fr_FR.UTF-8";
+  i18n.extraLocaleSettings = {
+      LC_ADDRESS = "fr_FR.UTF-8";
+      LC_IDENTIFICATION = "fr_FR.UTF-8";
+      LC_MEASUREMENT = "fr_FR.UTF-8";
+      LC_MONETARY = "fr_FR.UTF-8";
+      LC_NAME = "fr_FR.UTF-8";
+      LC_NUMERIC = "fr_FR.UTF-8";
+      LC_PAPER = "fr_FR.UTF-8";
+      LC_TELEPHONE = "fr_FR.UTF-8";
+      LC_TIME = "fr_FR.UTF-8";
+  };
+
+  environment.sessionVariables = {
+    # POLKIT_AUTH_AGENT = "${pkgs.polkit_gnome}/libexec/polkit-gnome-authentication-agent-1";
+    # GSETTINGS_SCHEMA_DIR = "${pkgs.gsettings-desktop-schemas}/share/gsettings-schemas/${pkgs.gsettings-desktop-schemas.name}/glib-2.0/schemas";
+    # LIBVA_DRIVER_NAME = "nvidia";
+    # XDG_SESSION_TYPE = "wayland";
+    # GBM_BACKEND = "nvidia-drm";
+    # __GLX_VENDOR_LIBRARY_NAME = "nvidia";
+    # WLR_NO_HARDWARE_CURSORS = "1";
+    # NIXOS_OZONE_WL = "1";
+    # MOZ_ENABLE_WAYLAND = "1";
+    # SDL_VIDEODRIVER = "wayland";
+    # _JAVA_AWT_WM_NONREPARENTING = "1";
+    # CLUTTER_BACKEND = "wayland";
+    # WLR_RENDERER = "vulkan";
+    # XDG_CURRENT_DESKTOP = "Hyprland";
+    # XDG_SESSION_DESKTOP = "Hyprland";
+    # GTK_USE_PORTAL = "1";
+    # NIXOS_XDG_OPEN_USE_PORTAL = "1";
+  };
 }

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1685533922,
-        "narHash": "sha256-y4FCQpYafMQ42l1V+NUrMel9RtFtZo59PzdzflKR/lo=",
+        "lastModified": 1687466461,
+        "narHash": "sha256-oupXI7g7RPzlpGUfAu1xG4KBK53GrZH8/xeKgKDB4+Q=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "3a70dd92993182f8e514700ccf5b1ae9fc8a3b8d",
+        "rev": "ecb441f22067ba1d6312f4932a7c64efa8d19a7b",
         "type": "github"
       },
       "original": {

flake.nix

@@ -18,10 +18,10 @@
         };
     in {
       nixosConfigurations = {
-        nixos = let
+        tower = let
           system = "x86_64-linux";
           pkgs = nixpkgs.legacyPackages.${system};
-        in mkHost (import ./hosts/nixos { inherit system pkgs; });
+        in mkHost (import ./hosts/tower { inherit system pkgs; });
       };
     };
 }

hosts/tower/default.nix

@@ -1,6 +1,6 @@
 # #
 ##
-##  per-host configuration for nixos host
+##  per-host configuration for exampleHost
 ##
 ##
 
@@ -8,10 +8,10 @@
   inherit pkgs system;
   zfs-root = {
     boot = {
-      devNodes = "/dev/disk/by-id/";
-      bootDevices = [ "bootDevices_placeholder" ];
+      devNodes = "/dev/";
+      bootDevices = [  "nvme0n1" ];
       immutable = false;
-      availableKernelModules = [ "kernelModules_placeholder" ];
+      availableKernelModules = [  "nvme" "xhci_pci" "usbhid" "usb_storage" "sd_mod" ];
       removableEfi = true;
       kernelParams = [ ];
       sshUnlock = {
@@ -22,9 +22,9 @@
     };
     networking = {
       # read changeHostName.txt file.
-      hostName = "nixos";
+      hostName = "tower";
       timeZone = "Europe/Paris";
-      hostId = "abcd1234";
+      hostId = "97a4a6a0";
     };
   };
 

install.sh

@@ -1,251 +0,0 @@
-#!/bin/env bash
-
-lsblk
-echo ""
-
-read -p "disk: " DISK
-read -p "swapsize GiB: " SWAPSIZEGIB
-read -p "reserve GiB: " RESERVEGIB
-read -sp "password: " POOLPASS
-
-EMAIL="marc@marcpartensky.com"
-NAME="Marc Partensky"
-
-RESERVE=$((RESERVEGIB * 1024))
-SWAPSIZE=$((SWAPSIZEGIB * 1024))
-
-
-MNT=$(mktemp -d)
-
-log() { echo -e "\n\033[1m${@}\033[0m"; }
-
-log Destroying zfs pool rpool and bpool just in case
-swapoff -a
-zpool import -fa
-for i in ${DISK}; do
-   zpool labelclear -f $i
-done
-zpool destroy -f bpool
-zpool destroy -f rpool
-zpool export -a
-
-log Unmounting filesystems just in case
-# ---
-umount -Rl "${MNT}"
-
-log Enabling Nix Flakes functionality
-# ---
-mkdir -p ~/.config/nix
-echo "experimental-features = nix-command flakes" >> ~/.config/nix/nix.conf
-
-
-log Installing programs needed for system installation
-# ---
-if ! command -v git; then nix-env -f '<nixpkgs>' -iA git; fi
-if ! command -v jq;  then nix-env -f '<nixpkgs>' -iA jq; fi
-if ! command -v partprobe;  then nix-env -f '<nixpkgs>' -iA parted; fi
-
-
-log Partition the disks
-# ---
-partition_disk () {
- local disk="${1}"
- blkdiscard -f "${disk}" || true
-
- parted --script --align=optimal  "${disk}" -- \
-     mklabel gpt \
-     mkpart swap  1MiB $((SWAPSIZE + 1))MiB \
-     mkpart rpool $((SWAPSIZE + 1))MiB -$((RESERVE + 100))MiB \
-     mkpart bpool -$((RESERVE + 100))MiB -$((RESERVE + 3))MiB \
-     mkpart EFI -$((RESERVE + 3))MiB -$((RESERVE + 2))MiB \
-     mkpart BIOS -$((RESERVE + 2))MiB -$((RESERVE + 1))MiB \
-     set 4 esp on \
-     set 5 bios_grub on \
-     set 5 legacy_boot on
-
- partprobe "${disk}"
- udevadm settle
-}
-
-for i in ${DISK}; do
-   partition_disk "${i}"
-done
-
-
-log Creating boot pool
-# ---
-# shellcheck disable=SC2046
-zpool create \
-    -o compatibility=grub2 \
-    -o ashift=12 \
-    -o autotrim=on \
-    -O acltype=posixacl \
-    -O canmount=off \
-    -O compression=lz4 \
-    -O devices=off \
-    -O normalization=formD \
-    -O relatime=on \
-    -O xattr=sa \
-    -O mountpoint=/boot \
-    -R "${MNT}" \
-    bpool \
-    $(for i in ${DISK}; do
-       printf '%s ' "${i}3";
-      done)
-
-
-log Creating root pool
-# ---
-# shellcheck disable=SC2046
-echo $POOLPASS | zpool create \
-    -o ashift=12 \
-    -o autotrim=on \
-    -R "${MNT}" \
-    -O acltype=posixacl \
-    -O canmount=off \
-    -O compression=zstd \
-    -O dnodesize=auto \
-    -O normalization=formD \
-    -O relatime=on \
-    -O xattr=sa \
-    -O mountpoint=/ \
-    -o feature@encryption=enabled \
-    -O encryption=on \
-    -O keyformat=passphrase \
-    rpool \
-   $(for i in ${DISK}; do
-      printf '%s ' "${i}2";
-     done)
-
-
-log Creating encrypted root system container
-# ---
-echo $POOLPASS | zfs create \
-    -o canmount=off \
-    -o mountpoint=none \
-    -o encryption=on \
-    -o keylocation=prompt \
-    -o keyformat=passphrase \
-    rpool/nixos
-
-
-log Creating system datasets, managing mountpoints with mountpoint=legacy
-# ---
-zfs create -o mountpoint=legacy     rpool/nixos/root
-mount -t zfs rpool/nixos/root "${MNT}"/
-zfs create -o mountpoint=legacy rpool/nixos/home
-mkdir "${MNT}"/home
-mount -t zfs rpool/nixos/home "${MNT}"/home
-zfs create -o mountpoint=legacy  rpool/nixos/var
-zfs create -o mountpoint=legacy rpool/nixos/var/lib
-zfs create -o mountpoint=legacy rpool/nixos/var/log
-zfs create -o mountpoint=none bpool/nixos
-zfs create -o mountpoint=legacy bpool/nixos/root
-mkdir "${MNT}"/boot
-mount -t zfs bpool/nixos/root "${MNT}"/boot
-mkdir -p "${MNT}"/var/log
-mkdir -p "${MNT}"/var/lib
-mount -t zfs rpool/nixos/var/lib "${MNT}"/var/lib
-mount -t zfs rpool/nixos/var/log "${MNT}"/var/log
-zfs create -o mountpoint=legacy rpool/nixos/empty
-zfs snapshot rpool/nixos/empty@start
-
-
-log Formatting and mounting ESP
-# ---
-for i in ${DISK}; do
- mkfs.vfat -n EFI "${i}"4
- mkdir -p "${MNT}"/boot/efis/"${i##*/}"4
- mount -t vfat -o iocharset=iso8859-1 "${i}"4 "${MNT}"/boot/efis/"${i##*/}"4
-done
-
-
-log Cloning template flake configuration
-# ---
-mkdir -p "${MNT}"/etc
-git clone --depth 1 --branch custom \
-  https://github.com/marcpartensky/dotfiles-flake.git "${MNT}"/etc/nixos
-
-rm -rf "${MNT}"/etc/nixos/.git
-git -C "${MNT}"/etc/nixos/ init -b master
-git -C "${MNT}"/etc/nixos/ add "${MNT}"/etc/nixos/
-git -C "${MNT}"/etc/nixos config user.email $EMAIL
-git -C "${MNT}"/etc/nixos config user.name $NAME
-git -C "${MNT}"/etc/nixos commit -asm 'initial commit'
-
-
-log Customizing configuration to your hardware
-# ---
-for i in ${DISK}; do
-  sed -i \
-  "s|/dev/disk/by-id/|${i%/*}/|" \
-  "${MNT}"/etc/nixos/hosts/nixos/default.nix
-  break
-done
-
-diskNames=""
-for i in ${DISK}; do
-  diskNames="${diskNames} \"${i##*/}\""
-done
-
-sed -i "s|\"bootDevices_placeholder\"|${diskNames}|g" \
-  "${MNT}"/etc/nixos/hosts/nixos/default.nix
-
-sed -i "s|\"abcd1234\"|\"$(head -c4 /dev/urandom | od -A none -t x4| sed 's| ||g' || true)\"|g" \
-  "${MNT}"/etc/nixos/hosts/nixos/default.nix
-
-sed -i "s|\"x86_64-linux\"|\"$(uname -m || true)-linux\"|g" \
-  "${MNT}"/etc/nixos/flake.nix
-
-cp "$(command -v nixos-generate-config || true)" ./nixos-generate-config
-
-chmod a+rw ./nixos-generate-config
-
-# shellcheck disable=SC2016
-echo 'print STDOUT $initrdAvailableKernelModules' >> ./nixos-generate-config
-
-kernelModules="$(./nixos-generate-config --show-hardware-config --no-filesystems | tail -n1 || true)"
-
-sed -i "s|\"kernelModules_placeholder\"|${kernelModules}|g" \
-  "${MNT}"/etc/nixos/hosts/nixos/default.nix
-
-log Setting root password
-# ---
-rootPwd=$(mkpasswd -m SHA-512)
-sed -i \
-"s|rootHash_placeholder|${rootPwd}|" \
-"${MNT}"/etc/nixos/configuration.nix
-
-
-log Commiting changes to local repo
-# ---
-git -C "${MNT}"/etc/nixos commit -asm 'initial installation'
-
-log Updating flake lock file to track latest system version
-# ---
-nix flake update --commit-lock-file \
-  "git+file://${MNT}/etc/nixos"
-
-log Installing system and apply configuration
-# ---
-nixos-install \
---root "${MNT}" \
---no-root-passwd \
---flake "git+file://${MNT}/etc/nixos#nixos"
-
-
-log Setuping encrypted swap. This is useful if the available memory is small
-# ---
-for i in ${DISK}; do
-   cryptsetup open --type plain --key-file /dev/random "${i}"1 "${i##*/}"1
-   mkswap /dev/mapper/"${i##*/}"1
-   swapon /dev/mapper/"${i##*/}"1
-done
-
-log Unmounting filesystems
-# ---
-umount -Rl "${MNT}"
-zpool export -a
-
-
-log The installation is done, enjoy

modules/boot/default.nix

@@ -44,11 +44,11 @@ in {
     };
     partitionScheme = mkOption {
       default = {
-        swap = "1";
-        rootPool = "2";
-        bootPool = "3";
-        efiBoot = "4";
-        biosBoot = "5";
+        biosBoot = "p5";
+        efiBoot = "p1";
+        swap = "p4";
+        bootPool = "p2";
+        rootPool = "p3";
       };
       description = "Describe on disk partitions";
       type = types.attrsOf types.str;

modules/networking/default.nix

@@ -7,7 +7,7 @@ in {
     hostName = mkOption {
       description = "The name of the machine.  Used by nix flake.";
       type = types.str;
-      default = "nixos";
+      default = "exampleHost";
     };
     timeZone = mkOption {
       type = types.str;