init minecraft server configs!

2026-03-13 23:36:43 -07:00 · 2026-03-13 23:36:43 -07:00 · 64820d502a
commit 64820d502a
23 changed files with 24719 additions and 0 deletions
--- a/modules/minecraft.nix
+++ b/modules/minecraft.nix
@ -0,0 +1,142 @@
+{ config, pkgs, lib, ... }:
+
+let
+  mcDataDir = "/srv/minecraft/data";
+
+  modrinthMods = builtins.concatStringsSep "," [
+    # Performance
+    "lithium"
+    "krypton"
+    "ferrite-core"
+    "c2me-fabric"
+    "noisium"
+    "linearly-optimized"
+    "vmp-fabric"
+    "ksyxis"
+    "scalablelux"
+    "lmd"
+    "structure-layout-optimizer"
+    "threadtweak"
+    "crashexploitfixer"
+
+    # Anti-cheat
+    "anti-xray"
+    "grimac"
+    "no-chat-reports"
+
+    # Worldgen — terrain (Stardust Labs suite)
+    "terralith"
+    "tectonic"
+    "amplified-nether"
+    "nullscape"
+
+    # Worldgen — structures (YUNG's suite)
+    "yungs-api"
+    "yungs-better-dungeons"
+    "yungs-better-strongholds"
+    "yungs-better-ocean-monuments"
+    "yungs-better-mineshafts"
+    "yungs-better-desert-temples"
+    "yungs-better-jungle-temples"
+    "yungs-better-witch-huts"
+    "yungs-better-nether-fortresses"
+    "yungs-better-end-island"
+    "yungs-extras"
+    "yungs-bridges"
+
+    # Client mod compatibility (optional on client side)
+    "appleskin"
+    "simple-voice-chat"
+
+    # QoL
+    "oneplayersleep"
+    "netherportalfix"
+
+    # Moderation
+    "luckperms"
+    "banhammer"
+    "ledger"
+    "styled-chat"
+
+    # Discord bridge
+    "discord4fabric"
+
+    # Utilities
+    "chunky"
+  ];
+
+  jvmFlags = builtins.concatStringsSep " " [
+    "-XX:+UseG1GC"
+    "-XX:+ParallelRefProcEnabled"
+    "-XX:MaxGCPauseMillis=200"
+    "-XX:+UnlockExperimentalVMOptions"
+    "-XX:+DisableExplicitGC"
+    "-XX:G1NewSizePercent=30"
+    "-XX:G1MaxNewSizePercent=40"
+    "-XX:G1HeapRegionSize=8M"
+    "-XX:G1ReservePercent=20"
+    "-XX:G1MixedGCCountTarget=4"
+    "-XX:InitiatingHeapOccupancyPercent=15"
+    "-XX:G1MixedGCLiveThresholdPercent=90"
+    "-XX:SurvivorRatio=32"
+    "-XX:+PerfDisableSharedMem"
+    "-XX:MaxTenuringThreshold=1"
+  ];
+in
+{
+  virtualisation.docker.enable = true;
+
+  virtualisation.oci-containers.backend = "docker";
+  virtualisation.oci-containers.containers.minecraft = {
+    image = "itzg/minecraft-server:latest";
+    ports = [
+      "25565:25565"       # Minecraft
+      "24454:24454/udp"   # Simple Voice Chat
+    ];
+    volumes = [
+      "${mcDataDir}:/data"
+    ];
+    environment = {
+      EULA = "TRUE";
+      TYPE = "FABRIC";
+      VERSION = "1.21.4";
+      MEMORY = "2G";
+      MAX_PLAYERS = "10";
+      DIFFICULTY = "hard";
+      VIEW_DISTANCE = "10";
+      SIMULATION_DISTANCE = "10";
+      ENABLE_WHITELIST = "TRUE";
+      ENFORCE_WHITELIST = "TRUE";
+      WHITELIST = "player1,player2"; # TODO: add your players
+      MOTD = "compsigh Minecraft"; # TODO: customize
+      MODRINTH_PROJECTS = modrinthMods;
+      JVM_XX_OPTS = jvmFlags;
+    };
+    extraOptions = [
+      "--memory=3g"
+      "--cpus=2"
+      "--restart=unless-stopped"
+      "--pids-limit=256"
+      "--security-opt=no-new-privileges"
+    ];
+  };
+
+  # Ensure data directory exists
+  systemd.tmpfiles.rules = [
+    "d ${mcDataDir} 0755 root root -"
+  ];
+
+  # Copy Chunky config (concurrency: 1 for background generation)
+  systemd.services.minecraft-mod-configs = {
+    description = "Copy mod configs into Minecraft data volume";
+    wantedBy = [ "multi-user.target" ];
+    before = [ "docker-minecraft.service" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = pkgs.writeShellScript "setup-mod-configs" ''
+        mkdir -p ${mcDataDir}/plugins/Chunky
+        cp ${../configs/chunky.yml} ${mcDataDir}/plugins/Chunky/config.yml
+      '';
+    };
+  };
+}