feat: use nix to build images

this should result in smaller images, as well as safer updates

1 files changed, 34 insertions, 0 deletions

diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..8008d76
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,34 @@
+{
+  description = "a docker image to serve packwiz modpacks";
+
+  inputs.nixpkgs.url = "nixpkgs/nixpkgs-unstable";
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  }: let
+    systems = [
+      "x86_64-linux"
+      "aarch64-linux"
+    ];
+
+    forAllSystems = fn: nixpkgs.lib.genAttrs systems (sys: fn nixpkgs.legacyPackages.${sys});
+  in {
+    formatter = forAllSystems (pkgs: pkgs.alejandra);
+
+    packages = forAllSystems ({
+      pkgs,
+      system,
+      ...
+    }: let
+      containerFor = import ./container.nix pkgs;
+      arch = pkgs.stdenv.hostPlatform.uname.processor;
+    in {
+      container-x86_64 = containerFor "x86_64";
+      container-aarch64 = containerFor "aarch64";
+
+      default = self.packages.${system}."container-${arch}";
+    });
+  };
+}