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Remove nixos-wsl

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Dave Gallant
2023-11-18 22:16:32 -05:00
parent 5a93ec2250
commit 91fadbd4c5
21 changed files with 1 additions and 1152 deletions
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2
README.md
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@@ -1,6 +1,6 @@
# nix-config # nix-config
This repo stores nix to manage my machines running [NixOS](https://nixos.org/), macOS, and Windows (using [NixOS-WSL](https://github.com/nix-community/NixOS-WSL)). This repo stores nix to manage my machines running [NixOS](https://nixos.org/) and macOS.
The configuration is very specific to my own machines and setup, but it may be a useful reference for anyone else learning or experimenting with nix, whether it be on a personal workstation or a server environment. The configuration is very specific to my own machines and setup, but it may be a useful reference for anyone else learning or experimenting with nix, whether it be on a personal workstation or a server environment.

43
modules/machines/aether/configuration.nix
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@@ -1,43 +0,0 @@
{
lib,
pkgs,
config,
modulesPath,
...
}:
with lib; let
nixos-wsl = import ./nixos-wsl;
in {
imports = [
"${modulesPath}/profiles/minimal.nix"
./nix-ld-config.nix
nixos-wsl.nixosModules.wsl
];
nix-ld-config.enable = true;
nixpkgs.config.allowUnfree = true;
system.stateVersion = "unstable";
networking = {hostName = "aether";};
wsl = {
enable = true;
automountPath = "/mnt";
defaultUser = "dave";
startMenuLaunchers = true;
# Enable integration with Docker Desktop
docker.enable = true;
tailscale.enable = true;
};
# Enable nix flakes
nix.package = pkgs.nixVersions.stable;
nix.extraOptions = ''
experimental-features = nix-command flakes
'';
}

31
modules/machines/aether/nix-ld-config.nix
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@@ -1,31 +0,0 @@
{
lib,
pkgs,
config,
...
}:
with lib; let
cfg = config.nix-ld-config;
ldEnv = {
NIX_LD_LIBRARY_PATH = with pkgs;
makeLibraryPath [
stdenv.cc.cc
];
NIX_LD = removeSuffix "\n" (builtins.readFile "${pkgs.stdenv.cc}/nix-support/dynamic-linker");
};
ldExports = mapAttrsToList (name: value: "export ${name}=${value}") ldEnv;
joinedLdExports = concatStringsSep "\n" ldExports;
in {
options.nix-ld-config = {
enable = mkEnableOption "nix-ld config module";
user = mkOption {
type = types.str;
description = "The name of user you want to configure for using VSCode's Remote WSL extension.";
default = "dave";
};
};
config = mkIf cfg.enable {
environment.variables = ldEnv;
home-manager.users.${cfg.user}.home.file.".vscode-server/server-env-setup".text = joinedLdExports;
};
}

7
modules/machines/aether/nixos-wsl/.envrc
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@@ -1,7 +0,0 @@
use_flake() {
watch_file flake.nix
watch_file flake.lock
eval "$(nix print-dev-env)"
}
use flake

17
modules/machines/aether/nixos-wsl/.github/release-drafter.yml vendored
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@@ -1,17 +0,0 @@
change-template: "* $TITLE (#$NUMBER) @$AUTHOR"
categories:
- title: '🚀 Features'
labels:
- enhancement
- title: "🪲 Bugfixes"
labels:
- bug
- title: "📖 Documentation"
labels:
- documentation
template: |
# Changelog
## 🛠️ General Changes
$CHANGES

70
modules/machines/aether/nixos-wsl/.github/workflows/main.yml vendored
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@@ -1,70 +0,0 @@
name: 'Build NixOS WSL tarball'
on: [push, pull_request, release]
jobs:
build:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
# Nix Flakes doesn't work on shallow clones
fetch-depth: 0
- name: Install nix
uses: cachix/install-nix-action@v12
with:
install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20201221_9fab14a/install
# Configure Nix to enable flakes
extra_nix_config: |
experimental-features = nix-command flakes
- name: Run checks
run: |
nix flake check
- name: Build tarball
run: |
nix build '.#nixosConfigurations.mysystem.config.system.build.tarball'
- name: Upload tarball
uses: actions/upload-artifact@v2
with:
name: rootfs
path: result/tarball/nixos-wsl-x86_64-linux.tar.gz
- name: Build installer
run: |
nix build '.#nixosConfigurations.mysystem.config.system.build.installer'
- name: Upload installer
uses: actions/upload-artifact@v2
with:
name: installer
path: result/tarball/nixos-wsl-installer.tar.gz
release:
if: startsWith(github.ref, 'refs/tags/')
needs: build
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
- uses: actions/download-artifact@v2
with:
name: rootfs
- uses: actions/download-artifact@v2
with:
name: installer
- name: Attach to release
uses: softprops/action-gh-release@v1
with:
files: |
nixos-wsl-x86_64-linux.tar.gz
nixos-wsl-installer.tar.gz
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

19
modules/machines/aether/nixos-wsl/.github/workflows/release-drafter.yml vendored
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@@ -1,19 +0,0 @@
name: Release Drafter
on:
push:
branches:
- main
pull_request:
types:
- opened
- reopened
- synchronize
-
jobs:
update_release_draft:
runs-on: ubuntu-latest
steps:
- uses: release-drafter/release-drafter@v5
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

50
modules/machines/aether/nixos-wsl/.github/workflows/update-flakes.yml vendored
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name: 'Update flakes'
on:
workflow_dispatch:
schedule:
- cron: '0 2 * * 0'
jobs:
update-flakes:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
# Nix Flakes doesn't work on shallow clones
fetch-depth: 0
- name: Install nix
uses: cachix/install-nix-action@v12
with:
install_url: https://github.com/numtide/nix-flakes-installer/releases/download/nix-2.4pre20201221_9fab14a/install
# Configure Nix to enable flakes
extra_nix_config: |
experimental-features = nix-command flakes
- name: Update flakes
run: nix flake update --recreate-lock-file
- name: Create Pull Request
id: cpr
uses: peter-evans/create-pull-request@v3
with:
commit-message: Update flakes
committer: GitHub <noreply@github.com>
author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
signoff: false
branch: flake-updates
delete-branch: true
title: 'Update flakes'
body: |
Update report
- Updated with *today's* date
- Auto-generated by [create-pull-request][1]
[1]: https://github.com/peter-evans/create-pull-request
- name: Check outputs
run: |
echo "Pull Request Number - ${{ steps.cpr.outputs.pull-request-number }}"
echo "Pull Request URL - ${{ steps.cpr.outputs.pull-request-url }}"

2
modules/machines/aether/nixos-wsl/.gitignore vendored
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result
result-*

202
modules/machines/aether/nixos-wsl/LICENSE
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104
modules/machines/aether/nixos-wsl/README.rst
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@@ -1,104 +0,0 @@
============
NixOS on WSL
============
A minimal root filesystem for running NixOS on WSL. It can be used with
DistroLauncher_ as ``install.tar.gz`` or as input to ``wsl --import --version
2``.
Quick start
===========
First, `download the latest release's installer
<https://github.com/nix-community/NixOS-WSL/releases/latest/download/nixos-wsl-installer.tar.gz>`_.
Then open up a Terminal, PowerShell or Command Prompt and run::
wsl --import NixOS .\NixOS\ nixos-wsl-installer.tar.gz --version 2
This sets up a new WSL distribution ``NixOS`` that is installed under
``.\NixOS``. ``nixos-wsl-installer.tar.gz`` is the path to the file you
downloaded earlier. You might need to change this path or change to the download
directory first.
You can now run NixOS::
wsl -d NixOS
The installer will unpack the file system and subsequently start NixOS.
A few warnings about file systems and locales will pop up. You can safely ignore them.
After systemd has started, you should be greeted with a bash prompt inside your fresh NixOS.
If you want to make NixOS your default distribution, you can do so via ``wsl -s
NixOS``.
systemd support
===============
WSL comes with its own (non-substitutable) init system while NixOS uses systemd.
Simply starting systemd later on does not work out of the box, because systemd
as system instance refuses to start if it is not PID 1. This unfortunate
combination is resolved in two ways:
* the user's default shell is replaced by a wrapper script that acts is init
system and then drops to the actual shell
* systemd is started in its own PID namespace; therefore, it is PID 1. The shell
wrapper (see above) enters the systemd namespace before dropping to the shell.
Installer
=========
Usually WSL distributions ship as a tarball of their root file system.
These tarballs however, can not contain any hard-links due to the way they are unpacked by WSL, resulting in an "Unspecified Error".
By default some Nix-derivations will contain hard-links when they are built. This results in system tarballs that can not be imported into WSL.
To circumvent this problem, the rootfs tarball is wrapped in that of a minimal distribution (the installer), that is packaged without any hard-links.
When the installer system is started for the first time, it overwrites itself with the contents of the rootfs tarball.
Build your own system tarball
=============================
This requires access to a system that already has Nix installed. Please refer to
the `Nix installation guide <https://nixos.org/guides/install-nix.html>`_ if
that's not the case.
If you have a flakes-enabled Nix, you can use the following command to build your
own tarball instead of relying on a prebuilt one::
nix build github:nix-community/NixOS-WSL#nixosConfigurations.mysystem.config.system.build.installer
Or, if you want to build with local changes, run inside your checkout::
nix build .#nixosConfigurations.mysystem.config.system.build.installer
Without a flakes-enabled Nix, you can build a tarball using::
nix-build -A nixosConfigurations.mysystem.config.system.build.installer
The resulting mini rootfs can then be found under
``./result/tarball/nixos-wsl-installer.tar.gz``.
You can also build a rootfs tarball without wrapping it in the installer by replacing ``installer`` with ``tarball`` in the above commands.
The rootfs tarball can then be found under ``./result/tarball/nixos-wsl-x86_64-linux.tar.gz``.
License
=======
Apache License, Version 2.0. See ``LICENSE`` or
http://www.apache.org/licenses/LICENSE-2.0.html for details.
Further links
=============
* DistroLauncher_
* `A quick way into a systemd "bottle" for WSL <https://github.com/arkane-systems/genie>`_
* `NixOS in Windows Store for Windows Subsystem for Linux <https://github.com/NixOS/nixpkgs/issues/30391>`_
* `wsl2-hacks <https://github.com/shayne/wsl2-hacks>`_
.. _DistroLauncher: https://github.com/microsoft/WSL-DistroLauncher

14
modules/machines/aether/nixos-wsl/default.nix
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@@ -1,14 +0,0 @@
(import
(
let
lock = builtins.fromJSON (builtins.readFile ./flake.lock);
in
fetchTarball {
url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
sha256 = lock.nodes.flake-compat.locked.narHash;
}
)
{
src = ./.;
})
.defaultNix

59
modules/machines/aether/nixos-wsl/flake.lock generated
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@@ -1,59 +0,0 @@
{
"nodes": {
"flake-compat": {
"flake": false,
"locked": {
"lastModified": 1648199409,
"narHash": "sha256-JwPKdC2PoVBkG6E+eWw3j6BMR6sL3COpYWfif7RVb8Y=",
"owner": "edolstra",
"repo": "flake-compat",
"rev": "64a525ee38886ab9028e6f61790de0832aa3ef03",
"type": "github"
},
"original": {
"owner": "edolstra",
"repo": "flake-compat",
"type": "github"
}
},
"flake-utils": {
"locked": {
"lastModified": 1648297722,
"narHash": "sha256-W+qlPsiZd8F3XkzXOzAoR+mpFqzm3ekQkJNa+PIh1BQ=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "0f8662f1319ad6abf89b3380dd2722369fc51ade",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1648203577,
"narHash": "sha256-CbXZkiVTA0ByV/yncFHCAGIa/AfcSb0cjqzEa56rO+Y=",
"owner": "NixOS",
"repo": "nixpkgs",
"rev": "d89f18a17e51532ed5f4d45297b0ddf11e46b9c8",
"type": "github"
},
"original": {
"id": "nixpkgs",
"ref": "nixos-21.11",
"type": "indirect"
}
},
"root": {
"inputs": {
"flake-compat": "flake-compat",
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
}
}
},
"root": "root",
"version": 7
}

58
modules/machines/aether/nixos-wsl/flake.nix
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@@ -1,58 +0,0 @@
{
description = "NixOS WSL";
inputs = {
nixpkgs.url = "nixpkgs/nixos-21.11";
flake-utils.url = "github:numtide/flake-utils";
flake-compat = {
url = "github:edolstra/flake-compat";
flake = false;
};
};
outputs = {
self,
nixpkgs,
flake-utils,
...
}:
{
nixosModules.wsl = {
imports = [
./modules/build-tarball.nix
./modules/wsl-distro.nix
./modules/docker-desktop.nix
./modules/tailscale.nix
./modules/installer.nix
];
};
nixosConfigurations.mysystem = nixpkgs.lib.nixosSystem {
system = "x86_64-linux";
modules = [
./configuration.nix
];
};
}
// flake-utils.lib.eachSystem
(with flake-utils.lib.system; ["x86_64-linux" "aarch64-linux"])
(
system: let
pkgs = import nixpkgs {inherit system;};
in {
checks.check-format =
pkgs.runCommand "check-format"
{
buildInputs = with pkgs; [nixpkgs-fmt];
} ''
nixpkgs-fmt --check ${./.}
mkdir $out # success
'';
devShell = pkgs.mkShell {
nativeBuildInputs = with pkgs; [nixpkgs-fmt];
};
}
);
}

93
modules/machines/aether/nixos-wsl/modules/build-tarball.nix
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@@ -1,93 +0,0 @@
{
config,
pkgs,
lib,
...
}:
with builtins;
with lib; let
pkgs2storeContents = l:
map
(x: {
object = x;
symlink = "none";
})
l;
nixpkgs = lib.cleanSource pkgs.path;
channelSources =
pkgs.runCommand "nixos-${config.system.nixos.version}"
{preferLocalBuild = true;}
''
mkdir -p $out
cp -prd ${nixpkgs.outPath} $out/nixos
chmod -R u+w $out/nixos
if [ ! -e $out/nixos/nixpkgs ]; then
ln -s . $out/nixos/nixpkgs
fi
echo -n ${toString config.system.nixos.revision} > $out/nixos/.git-revision
echo -n ${toString config.system.nixos.versionSuffix} > $out/nixos/.version-suffix
echo ${toString config.system.nixos.versionSuffix} | sed -e s/pre// > $out/nixos/svn-revision
'';
preparer = pkgs.writeShellScriptBin "wsl-prepare" ''
set -e
mkdir -m 0755 ./bin ./etc
mkdir -m 1777 ./tmp
# WSL requires a /bin/sh - only temporary, NixOS's activate will overwrite
ln -s ${config.users.users.root.shell} ./bin/sh
# WSL also requires a /bin/mount, otherwise the host fs isn't accessible
ln -s /nix/var/nix/profiles/system/sw/bin/mount ./bin/mount
# Set system profile
system=${config.system.build.toplevel}
./$system/sw/bin/nix-store --store `pwd` --load-db < ./nix-path-registration
rm ./nix-path-registration
./$system/sw/bin/nix-env --store `pwd` -p ./nix/var/nix/profiles/system --set $system
# Set channel
mkdir -p ./nix/var/nix/profiles/per-user/root
./$system/sw/bin/nix-env --store `pwd` -p ./nix/var/nix/profiles/per-user/root/channels --set ${channelSources}
mkdir -m 0700 -p ./root/.nix-defexpr
ln -s /nix/var/nix/profiles/per-user/root/channels ./root/.nix-defexpr/channels
# It's now a NixOS!
touch ./etc/NIXOS
# Write wsl.conf so that it is present when NixOS is started for the first time
cp ${config.environment.etc."wsl.conf".source} ./etc/wsl.conf
# Copy the system configuration
mkdir -p ./etc/nixos/nixos-wsl
cp -R ${lib.cleanSource ../.}/. ./etc/nixos/nixos-wsl
mv ./etc/nixos/nixos-wsl/configuration.nix ./etc/nixos/configuration.nix
# Patch the import path to avoid havin a flake.nix in /etc/nixos
sed -i 's|import \./default\.nix|import \./nixos-wsl|' ./etc/nixos/configuration.nix
'';
in
mkIf config.wsl.enable {
# These options make no sense without the wsl-distro module anyway
system.build.tarball = pkgs.callPackage "${nixpkgs}/nixos/lib/make-system-tarball.nix" {
# No contents, structure will be added by prepare script
contents = [];
fileName = "nixos-wsl-${pkgs.hostPlatform.system}";
storeContents = pkgs2storeContents [
config.system.build.toplevel
channelSources
preparer
];
extraCommands = "${preparer}/bin/wsl-prepare";
# Use gzip
compressCommand = "gzip";
compressionExtension = ".gz";
};
}

38
modules/machines/aether/nixos-wsl/modules/docker-desktop.nix
View File

@@ -1,38 +0,0 @@
{
config,
lib,
pkgs,
...
}:
with builtins;
with lib; {
options.wsl.docker = with types; {
enable = mkEnableOption "Docker Desktop integration";
};
config = let
cfg = config.wsl.docker;
in
mkIf (config.wsl.enable && cfg.enable) {
environment.systemPackages = with pkgs; [
docker
docker-compose
];
systemd.services.docker-desktop-proxy = {
description = "Docker Desktop proxy";
script = ''
${config.wsl.automountPath}/wsl/docker-desktop/docker-desktop-user-distro proxy --docker-desktop-root ${config.wsl.automountPath}/wsl/docker-desktop
'';
wantedBy = ["multi-user.target"];
serviceConfig = {
Restart = "on-failure";
RestartSec = "30s";
};
};
users.groups.docker.members = [
config.wsl.defaultUser
];
};
}

77
modules/machines/aether/nixos-wsl/modules/installer.nix
View File

@@ -1,77 +0,0 @@
{
config,
lib,
pkgs,
...
}:
with builtins;
with lib; {
config = mkIf config.wsl.enable (
let
mkTarball = pkgs.callPackage "${lib.cleanSource pkgs.path}/nixos/lib/make-system-tarball.nix";
pkgs2storeContents = map (x: {
object = x;
symlink = "none";
});
rootfs = let tarball = config.system.build.tarball; in "${tarball}/tarball/${tarball.fileName}.tar${tarball.extension}";
installer = pkgs.writeScript "installer.sh" ''
#!${pkgs.busybox}/bin/sh
BASEPATH=$PATH
export PATH=$BASEPATH:${pkgs.busybox}/bin # Add busybox to path
set -e
cd /
echo "Unpacking root file system..."
${pkgs.pv}/bin/pv ${rootfs} | tar xz
echo "Activating nix configuration..."
/nix/var/nix/profiles/system/activate
PATH=$BASEPATH:/run/current-system/sw/bin # Use packages from target system
echo "Cleaning up installer files..."
nix-collect-garbage
rm /nix-path-registration
echo "Optimizing store..."
nix-store --optimize
echo "Starting systemd..."
# Don't package the shell here, it's contained in the rootfs
exec ${builtins.unsafeDiscardStringContext config.users.users.root.shell} "$@"
'';
# Set installer.sh as the root shell
passwd = pkgs.writeText "passwd" ''
root:x:0:0:System administrator:/root:${installer}
'';
in {
system.build.installer = mkTarball {
fileName = "nixos-wsl-installer";
compressCommand = "gzip";
compressionExtension = ".gz";
extraArgs = "--hard-dereference";
storeContents = with pkgs;
pkgs2storeContents [
installer
];
contents = [
{
source = config.environment.etc."wsl.conf".source;
target = "/etc/wsl.conf";
}
{
source = passwd;
target = "/etc/passwd";
}
];
};
}
);
}

33
modules/machines/aether/nixos-wsl/modules/tailscale.nix
View File

@@ -1,33 +0,0 @@
{
config,
lib,
pkgs,
...
}:
with builtins;
with lib; {
options.wsl.tailscale = with types; {
enable = mkEnableOption "Tailscale for WSL";
};
config = let
cfg = config.wsl.tailscale;
in
mkIf (config.wsl.enable && cfg.enable) {
environment.systemPackages = with pkgs; [
tailscale
];
systemd.services.tailscaled = {
description = "Tailscale WSL";
script = ''
${pkgs.tailscale}/bin/tailscaled
'';
wantedBy = ["multi-user.target"];
serviceConfig = {
Restart = "on-failure";
RestartSec = "30s";
};
};
};
}

137
modules/machines/aether/nixos-wsl/modules/wsl-distro.nix
View File

@@ -1,137 +0,0 @@
{
lib,
pkgs,
config,
...
}:
with builtins;
with lib; {
options.wsl = with types; let
coercedToStr = coercedTo (oneOf [bool path int]) toString str;
in {
enable = mkEnableOption "support for running NixOS as a WSL distribution";
automountPath = mkOption {
type = str;
default = "/mnt";
description = "The path where windows drives are mounted (e.g. /mnt/c)";
};
automountOptions = mkOption {
type = str;
default = "metadata,uid=1000,gid=100";
description = "Options to use when mounting windows drives";
};
defaultUser = mkOption {
type = str;
default = "nixos";
description = "The name of the default user";
};
startMenuLaunchers = mkEnableOption "shortcuts for GUI applications in the windows start menu";
wslConf = mkOption {
type = attrsOf (attrsOf coercedToStr);
description = "Entries that are added to /etc/wsl.conf";
};
interop = {
register = mkOption {
type = bool;
default = true;
description = "Explicitly register the binfmt_misc handler for Windows executables";
};
includePath = mkOption {
type = bool;
default = true;
description = "Include Windows PATH in WSL PATH";
};
};
};
config = let
cfg = config.wsl;
syschdemd = import ../syschdemd.nix {
inherit lib pkgs config;
defaultUser = cfg.defaultUser;
};
in
mkIf cfg.enable {
wsl.wslConf = {
automount = {
enabled = true;
mountFsTab = true;
root = "${cfg.automountPath}/";
options = cfg.automountOptions;
};
};
# WSL is closer to a container than anything else
boot = {
isContainer = true;
binfmt.registrations = mkIf cfg.interop.register {
WSLInterop = {
magicOrExtension = "MZ";
interpreter = "/init";
fixBinary = true;
};
};
};
environment.noXlibs = lib.mkForce false; # override xlibs not being installed (due to isContainer) to enable the use of GUI apps
environment = {
# Include Windows %PATH% in Linux $PATH.
extraInit = mkIf cfg.interop.includePath ''PATH="$PATH:$WSLPATH"'';
etc = {
"wsl.conf".text = generators.toINI {} cfg.wslConf;
# DNS settings are managed by WSL
hosts.enable = false;
"resolv.conf".enable = false;
};
};
networking.dhcpcd.enable = false;
users.users.${cfg.defaultUser} = {
isNormalUser = true;
extraGroups = ["wheel"]; # Allow the default user to use sudo
shell = pkgs.zsh;
};
users.users.root = {
shell = "${syschdemd}/bin/syschdemd";
# Otherwise WSL fails to login as root with "initgroups failed 5"
extraGroups = ["root"];
};
security.sudo = {
extraConfig = ''
Defaults env_keep+=INSIDE_NAMESPACE
'';
wheelNeedsPassword = mkDefault false; # The default user will not have a password by default
};
system.activationScripts.copy-launchers = mkIf cfg.startMenuLaunchers (
stringAfter [] ''
for x in applications icons; do
echo "Copying /usr/share/$x"
mkdir -p /usr/share/$x
${pkgs.rsync}/bin/rsync -ar --delete $systemConfig/sw/share/$x/. /usr/share/$x
done
''
);
# Disable systemd units that don't make sense on WSL
systemd.services."serial-getty@ttyS0".enable = false;
systemd.services."serial-getty@hvc0".enable = false;
systemd.services."getty@tty1".enable = false;
systemd.services."autovt@".enable = false;
systemd.services.firewall.enable = false;
systemd.services.systemd-resolved.enable = false;
systemd.services.systemd-udevd.enable = false;
# Don't allow emergency mode, because we don't have a console.
systemd.enableEmergencyMode = false;
};
}

25
modules/machines/aether/nixos-wsl/syschdemd.nix
View File

@@ -1,25 +0,0 @@
{
lib,
pkgs,
config,
defaultUser,
...
}:
pkgs.substituteAll {
name = "syschdemd";
src = ./syschdemd.sh;
dir = "bin";
isExecutable = true;
buildInputs = with pkgs; [daemonize];
inherit (pkgs) daemonize;
inherit defaultUser;
inherit (config.security) wrapperDir;
fsPackagesPath = lib.makeBinPath config.system.fsPackages;
systemdWrapper = pkgs.writeShellScript "systemd-wrapper.sh" ''
mount -t binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc || true
exec systemd
'';
}

72
modules/machines/aether/nixos-wsl/syschdemd.sh
View File

@@ -1,72 +0,0 @@
#! @shell@
set -e
sw="/nix/var/nix/profiles/system/sw/bin"
systemPath=$(${sw}/readlink -f /nix/var/nix/profiles/system)
function start_systemd {
@wrapperDir@/umount /proc/sys/fs/binfmt_misc || true
PATH=/run/current-system/systemd/lib/systemd:@fsPackagesPath@ \
LOCALE_ARCHIVE=/run/current-system/sw/lib/locale/locale-archive \
@daemonize@/bin/daemonize /run/current-system/sw/bin/unshare -fp --mount-proc @systemdWrapper@
# Wait until systemd has been started to prevent a race condition from occuring
while ! /run/current-system/sw/bin/pgrep -xf systemd >/run/systemd.pid; do
$sw/sleep 1s
done
# Wait for systemd to start services
status=1
while [[ $status -gt 0 ]]; do
$sw/sleep 1
status=0
$sw/nsenter -t $(</run/systemd.pid) -p -m -- \
$sw/systemctl is-system-running -q --wait 2>/dev/null ||
status=$?
done
}
# Needs root to work
if [[ $EUID -ne 0 ]]; then
echo "[ERROR] Requires root! :( Make sure the WSL default user is set to root"
exit 1
fi
if [ ! -e "/run/current-system" ]; then
LANG="C.UTF-8" /nix/var/nix/profiles/system/activate
fi
if [ ! -e "/run/systemd.pid" ]; then
start_systemd
fi
userShell=$($sw/getent passwd @defaultUser@ | $sw/cut -d: -f7)
if [[ $# -gt 0 ]]; then
# wsl seems to prefix with "-c"
shift
cmd="$@"
else
cmd="$userShell"
fi
# Pass external environment but filter variables specific to root user.
exportCmd="$(export -p | $sw/grep -vE ' (HOME|LOGNAME|SHELL|USER)='); export WSLPATH=\"$PATH\"; export INSIDE_NAMESPACE=true"
if [ -z "${INSIDE_NAMESPACE:-}" ]; then
# Test whether systemd is still alive if it was started previously
if ! [ -d "/proc/$(</run/systemd.pid)" ]; then
# Clear systemd pid if the process is not alive anymore
$sw/rm /run/systemd.pid
start_systemd
fi
exec $sw/nsenter -t $(</run/systemd.pid) -p -m -- $sw/machinectl -q \
--uid=@defaultUser@ shell .host /bin/sh -c \
"cd \"$PWD\"; $exportCmd; source /etc/set-environment; exec $cmd"
else
exec $cmd
fi