Add a Minecraft server

This server now hosts a Minecraft server in the local network.

Author: inverted-tree

flake.lock

@@ -4,15 +4,14 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     sops-nix.url = "github:Mic92/sops-nix";
+    nix-minecraft.url = "github:Infinidoge/nix-minecraft";
   };
 
-  outputs =
-    inputs@{ self, nixpkgs, ... }:
+  outputs = inputs@{ self, nixpkgs, ... }:
     let
       system = "x86_64-linux";
       pkgs = nixpkgs.legacyPackages.${system};
-    in
-    {
+    in {
       # The itx server hosting most of my homelab.
       nixosConfigurations.itxserver = nixpkgs.lib.nixosSystem {
         specialArgs = { inherit inputs; };

flake.nix

@@ -30,6 +30,7 @@ in
     ../../modules/containers/homeassistant.nix
     ../../modules/containers/plex.nix
     ../../modules/containers/freshrss.nix
+    ../../modules/other/minecraft-server.nix
     # Any other modules:
     inputs.sops-nix.nixosModules.sops
   ];

hosts/itxserver/configuration.nix

@@ -0,0 +1,59 @@
+# ███╗   ███╗██╗███╗   ██╗███████╗ ██████╗██████╗  █████╗ ███████╗████████╗
+# ████╗ ████║██║████╗  ██║██╔════╝██╔════╝██╔══██╗██╔══██╗██╔════╝╚══██╔══╝
+# ██╔████╔██║██║██╔██╗ ██║█████╗  ██║     ██████╔╝███████║█████╗     ██║   
+# ██║╚██╔╝██║██║██║╚██╗██║██╔══╝  ██║     ██╔══██╗██╔══██║██╔══╝     ██║   
+# ██║ ╚═╝ ██║██║██║ ╚████║███████╗╚██████╗██║  ██║██║  ██║██║        ██║   
+# ╚═╝     ╚═╝╚═╝╚═╝  ╚═══╝╚══════╝ ╚═════╝╚═╝  ╚═╝╚═╝  ╚═╝╚═╝        ╚═╝   
+# ═════════════════════════════════════════════════════════════════════════
+# A simple minecraft server module for hosting a local network server.
+
+{ pkgs, lib, config, ... }@args:
+let
+  inherit (args) inputs;
+  nmx = inputs.nix-minecraft;
+
+  serverPack = pkgs.fetchzip {
+    url =
+      "https://mediafilez.forgecdn.net/files/6974/725/Prominence%20II%20Hasturian%20Era-v3.9.0.zip";
+    sha256 = "sha256-qa6Ma1LC/BnGF9yCSMb0hit3Sgx4bcgt7UAUo9aTeKM=";
+    stripRoot = false;
+  };
+  maybeCollect = dir:
+    if builtins.pathExists "${serverPack}/${dir}" then
+      nmx.lib.collectFilesAt serverPack dir
+    else
+      { };
+in {
+  imports = [ nmx.nixosModules.minecraft-servers ];
+
+  nixpkgs.overlays = [ nmx.overlay ];
+
+  nixpkgs.config.allowUnfreePredicate = pkg:
+    builtins.elem (lib.getName pkg) [ "minecraft-server" ];
+
+  services.minecraft-servers = {
+    enable = true;
+    eula = true;
+    openFirewall = true;
+
+    servers = {
+      rpg-server = {
+        enable = true;
+        autoStart = true;
+        package = pkgs.fabricServers.fabric-1_20_1;
+
+        jvmOpts =
+          "-Xms8G -Xmx8G -XX:+UseG1GC -XX:MaxGCPauseMillis=100 -XX:+ParallelRefProcEnabled";
+
+        serverProperties = { motd = "Lukas' Epic Minecraft Server!"; };
+
+        files = maybeCollect "mods" // maybeCollect "overrides/mods"
+          // maybeCollect "config" // maybeCollect "defaultconfigs"
+          // maybeCollect "kubejs" // maybeCollect "scripts"
+          // maybeCollect "config/ftbquests"
+          // maybeCollect "overrides/config" # some CF packs use overrides/
+          // maybeCollect "overrides/defaultconfigs";
+      };
+    };
+  };
+}