From 6079344446d3686f369d65d62ed3eb70ee695d01 Mon Sep 17 00:00:00 2001
From: Gabriele Modena <gmodena@pm.me>
Date: Wed, 7 Feb 2024 22:41:43 +0100
Subject: [PATCH] Add testing-base. (#36)

Add a base 23.11 nixos system with Gnome, GDM
and nix-flatpak installed.
---
 testing-base/README.md         | 19 ++++++++++++
 testing-base/common.nix        | 54 ++++++++++++++++++++++++++++++++++
 testing-base/configuration.nix | 13 ++++++++
 testing-base/flake.lock        | 40 +++++++++++++++++++++++++
 testing-base/flake.nix         | 21 +++++++++++++
 5 files changed, 147 insertions(+)
 create mode 100644 testing-base/README.md
 create mode 100644 testing-base/common.nix
 create mode 100644 testing-base/configuration.nix
 create mode 100644 testing-base/flake.lock
 create mode 100644 testing-base/flake.nix

diff --git a/testing-base/README.md b/testing-base/README.md
new file mode 100644
index 0000000..6d37c29
--- /dev/null
+++ b/testing-base/README.md
@@ -0,0 +1,19 @@
+# Testing base
+
+A base GDM + Gnome `nixos` system to experiment with `nix-flatpak`.
+
+Build a qemu virtual machine with
+```bash
+nix build .#nixosConfigurations.test-system-module.config.system.build.vm
+```
+
+start the system with
+```bash
+export QEMU_NET_OPTS="hostfwd=tcp::2221-:22"
+result/bin/run-nixos-vm
+```
+
+and ssh into the vm with
+```bash
+ssh -oUserKnownHostsFile=/dev/null -oStrictHostKeyChecking=no antani@localhost -p 2221
+```
diff --git a/testing-base/common.nix b/testing-base/common.nix
new file mode 100644
index 0000000..784af99
--- /dev/null
+++ b/testing-base/common.nix
@@ -0,0 +1,54 @@
+# configuration.nix
+{ config, lib, pkgs, ... }: {
+  users.users.antani = {
+    isNormalUser = true;
+    home = "/home/antani";
+    extraGroups = [ "wheel" ]; # Enables `sudo` for the user.
+    password = "changeme"; # The password assigned if the user does not already exist.
+  };
+
+  virtualisation.vmVariant = {
+    # following configuration is added only when building VM with build-vm
+    virtualisation = {
+      memorySize = 1024; # Use 1024MiB memory.
+      cores = 2;
+      graphics = true; # Boot the vm in a window.
+      diskSize = 1000; # Virtual machine disk size in MB.
+    };
+  };
+
+  services.openssh = {
+    enable = true;
+    settings.PasswordAuthentication = true;
+  };
+
+  networking.firewall.allowedTCPPorts = [ 22 ];
+  environment.systemPackages = with pkgs; [
+    git
+    vim
+  ];
+  services.xserver.enable = true;
+  
+  # Enable the GNOME Desktop Environment.
+  services.xserver.displayManager.gdm.enable = true;
+  services.xserver.desktopManager.gnome.enable = true;
+
+  # Required to install flatpak
+  xdg.portal = {
+    enable = true;
+    config = {
+      common = {
+        default = [
+          "gtk"
+        ];
+      };
+    };
+    extraPortals = with pkgs; [
+      xdg-desktop-portal-wlr
+      #      xdg-desktop-portal-kde
+      #      xdg-desktop-portal-gtk
+    ];
+  };
+
+  system.stateVersion = "23.11";
+}
diff --git a/testing-base/configuration.nix b/testing-base/configuration.nix
new file mode 100644
index 0000000..8bc0553
--- /dev/null
+++ b/testing-base/configuration.nix
@@ -0,0 +1,13 @@
+# configuration.nix
+{ config, lib, pkgs, ... }: {
+  imports = [
+    ./common.nix
+  ];
+  # nix-flatpak setup
+  services.flatpak.enable = true;
+  services.flatpak.update.auto.enable = false;
+  services.flatpak.uninstallUnmanagedPackages = true;
+  services.flatpak.packages = [
+    # ...
+  ];
+}
diff --git a/testing-base/flake.lock b/testing-base/flake.lock
new file mode 100644
index 0000000..1b65f8a
--- /dev/null
+++ b/testing-base/flake.lock
@@ -0,0 +1,40 @@
+{
+  "nodes": {
+    "flatpaks": {
+      "locked": {
+        "lastModified": 0,
+        "narHash": "sha256-SawYARayiNIHSzlJ+53b6VF3znhaaMa0sTpJ9vupF+I=",
+        "path": "/nix/store/02k7ls0yqyl1gx6v4298c9vp1phh04as-source",
+        "type": "path"
+      },
+      "original": {
+        "path": "/nix/store/02k7ls0yqyl1gx6v4298c9vp1phh04as-source",
+        "type": "path"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1707091808,
+        "narHash": "sha256-LahKBAfGbY836gtpVNnWwBTIzN7yf/uYM/S0g393r0Y=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "9f2ee8c91ac42da3ae6c6a1d21555f283458247e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flatpaks": "flatpaks",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/testing-base/flake.nix b/testing-base/flake.nix
new file mode 100644
index 0000000..acca659
--- /dev/null
+++ b/testing-base/flake.nix
@@ -0,0 +1,21 @@
+# flake.nix
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+    flatpaks.url = "../";
+  };
+  outputs = inputs@{ self, nixpkgs, flatpaks, ... }:
+    let
+      system = "x86_64-linux";
+    in
+    {
+      # hostname = test-system-module
+      nixosConfigurations.test-system-module = nixpkgs.lib.nixosSystem {
+        inherit system;
+        modules = [
+          flatpaks.nixosModules.nix-flatpak
+          ./configuration.nix
+        ];
+      };
+    };
+}