build gcp image

flake.nix

@@ -0,0 +1,36 @@
+{
+  description = "Tool to build NixOS for GCP.  ";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    nixos-generators = {
+      url = "github:nix-community/nixos-generators";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, nixos-generators }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        gcp = nixos-generators.nixosGenerate {
+          system = "x86_64-linux";
+
+          modules = [ ./gcp-configuration.nix ];
+          format = "gce";
+
+          pkgs = nixpkgs.legacyPackages.x86_64-linux;
+          lib = nixpkgs.legacyPackages.x86_64-linux.lib;
+        };
+      in {
+
+        packages.gcp = gcp;
+        devShells.default = pkgs.mkShell {
+          buildInputs = [ pkgs.google-cloud-sdk ];
+          shellHook = ''
+            export PROJECT_ID="all-dressed-programming"
+            export BUCKET_NAME="nautilus-plus"
+          '';
+        };
+      });
+}