From 6adfa8034bdf2cafc81c77fb412d0857f09731ee Mon Sep 17 00:00:00 2001
From: Chris Martin <ch.martin@gmail.com>
Date: Wed, 17 Jan 2024 19:45:09 -0700
Subject: [PATCH] add nixos module (#22)

---
 main/flake.lock        | 17 +++++++++++++++++
 main/flake.nix         |  9 ++++++---
 main/nixos-modules.nix | 31 +++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+), 3 deletions(-)
 create mode 100644 main/nixos-modules.nix

diff --git a/main/flake.lock b/main/flake.lock
index 42b1355..add0d00 100644
--- a/main/flake.lock
+++ b/main/flake.lock
@@ -18,6 +18,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-22-11": {
+      "locked": {
+        "lastModified": 1688392541,
+        "narHash": "sha256-lHrKvEkCPTUO+7tPfjIcb7Trk6k31rz18vkyqmkeJfY=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-23-05": {
       "locked": {
         "lastModified": 1701362232,
@@ -133,6 +149,7 @@
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
+        "nixpkgs-22-11": "nixpkgs-22-11",
         "nixpkgs-23-05": "nixpkgs-23-05",
         "nixpkgs-master-2023-05-06": "nixpkgs-master-2023-05-06",
         "nixpkgs-master-2023-07-18": "nixpkgs-master-2023-07-18",
diff --git a/main/flake.nix b/main/flake.nix
index 59d0800..14af248 100644
--- a/main/flake.nix
+++ b/main/flake.nix
@@ -1,6 +1,7 @@
 {
   inputs = {
     nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-23.11";
+    nixpkgs-22-11.url = "github:nixos/nixpkgs/nixos-22.11";
     nixpkgs-23-05.url = "github:nixos/nixpkgs/nixos-23.05";
     nixpkgs-stable-2023-07-25.url = "github:nixos/nixpkgs/6dc93f0daec55ee2f441da385aaf143863e3d671";
     nixpkgs-master-2023-05-06.url = "github:nixos/nixpkgs/16b3b0c53b1ee8936739f8c588544e7fcec3fc60";
@@ -10,11 +11,13 @@
     flake-utils.url = "github:numtide/flake-utils";
   };
   outputs = inputs:
-    inputs.flake-utils.lib.eachDefaultSystem (system:
+    (inputs.flake-utils.lib.eachDefaultSystem (system:
       rec {
         packages = import ./packages.nix { inherit inputs system; };
         lib = import ./lib.nix { inherit inputs system packages; };
         checks = import ./checks.nix { inherit inputs system packages lib; };
-      }
-    );
+      })
+    ) // {
+      nixosModules = import ./nixos-modules.nix { inherit inputs; };
+    };
 }
diff --git a/main/nixos-modules.nix b/main/nixos-modules.nix
new file mode 100644
index 0000000..0a17189
--- /dev/null
+++ b/main/nixos-modules.nix
@@ -0,0 +1,31 @@
+{ inputs }:
+{
+  docker-for-local-dev =
+    { config, ... }:
+    let
+      pkgs = import inputs.nixpkgs-22-11 { inherit (config.nixpkgs) system; };
+    in
+    {
+      # Enable Docker
+      virtualisation.docker.enable = true;
+
+      # Allow Docker to see the host
+      networking.firewall.allowedTCPPorts = [ 3000 ];
+
+      # Pretend that localhost.com is a domain that points to our own machine
+      networking.extraHosts = ''
+        127.0.0.1 localhost.com
+        127.0.0.1 api.localhost.com
+        127.0.0.1 assets.localhost.com
+        127.0.0.1 classroom.localhost.com
+        127.0.0.1 school.localhost.com
+        127.0.0.1 student.localhost.com
+        127.0.0.1 console.localhost.com
+        127.0.0.1 faktory.localhost.com
+        127.0.0.1 tts.localhost.com
+        127.0.0.1 sso.localhost.com
+      '';
+
+      virtualisation.docker.package = pkgs.docker;
+    };
+}