From f4dc4786bc97ffaa997bdae21ecf4e0cb1b11ed8 Mon Sep 17 00:00:00 2001
From: Sridhar Ratnakumar <srid@srid.ca>
Date: Wed, 27 Mar 2024 10:42:25 -0400
Subject: [PATCH] wip

---
 .envrc                                  |  4 ++-
 clusters/github-runner/flake-module.nix | 48 +++++++++++++++++++++++++
 flake.nix                               |  5 +++
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 clusters/github-runner/flake-module.nix

diff --git a/.envrc b/.envrc
index 8392d15..e8ff5cc 100644
--- a/.envrc
+++ b/.envrc
@@ -1 +1,3 @@
-use flake
\ No newline at end of file
+watch_file \
+  clusters/github-runner/flake-module.nix
+use flake
diff --git a/clusters/github-runner/flake-module.nix b/clusters/github-runner/flake-module.nix
new file mode 100644
index 0000000..ac55851
--- /dev/null
+++ b/clusters/github-runner/flake-module.nix
@@ -0,0 +1,48 @@
+{ self, lib, flake-parts-lib, ... }:
+
+let
+  inherit (flake-parts-lib)
+    mkPerSystemOption;
+  inherit (lib)
+    types;
+in
+{
+  options.distributed-github-runner = {
+    # TODO: Move to personal-repos?
+    tokenFile = lib.mkOption {
+      type = types.string;
+      description = "The file containing the GitHub runner token";
+    };
+    runner-user = lib.mkOption {
+      type = types.string;
+      description = "The user to run the GitHub runner as";
+      default = "github-runner";
+    };
+    runner-packages = lib.mkOption {
+      type = types.listOf types.package;
+      description = "Packages to install on the GitHub runners";
+      default = [ ];
+    };
+    # NOTE: At some point, we want to support organization repositories as well.
+    personal-repos = lib.mkOption {
+      type = types.attrsOf (types.attrsOf (types.submodule {
+        options = {
+          num = lib.mkOption {
+            type = types.int;
+            description = "The number of runners to register for this repository";
+            default = 1;
+          };
+        };
+      }));
+      description = "List of personal repositories to register the runner for";
+      default = { };
+    };
+    outputs = {
+      nixosModule = lib.mkOption {
+        type = types.deferredModule;
+        description = "The NixOS module to use for the GitHub runner";
+        internal = true;
+      };
+    };
+  };
+}
diff --git a/flake.nix b/flake.nix
index b32aa4b..c7e3ea2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -42,8 +42,13 @@
         ./home
         ./nixos
         ./nix-darwin
+        ./clusters/github-runner/flake-module.nix
       ];
 
+      distributed-github-runner = {
+        tokenFile =  "/run/keys/github-runner-token.secret";
+      };
+
       # Colmena deployment configuration
       # See https://github.com/juspay/colmena-flake
       colmena-flake.deployment =