162 lines
4 KiB
Nix
162 lines
4 KiB
Nix
{ config, pkgs, lib, ... }:
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let
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mcDataDir = "/srv/minecraft/data";
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modrinthMods = builtins.concatStringsSep "," [
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# Performance
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"lithium"
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"krypton"
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"ferrite-core"
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"c2me-fabric"
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"noisium"
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"linearly-optimized"
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"vmp-fabric"
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"ksyxis"
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"scalablelux"
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"lmd"
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"structure-layout-optimizer"
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"threadtweak"
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"crashexploitfixer"
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# Anti-cheat
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"anti-xray"
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"grimac"
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"no-chat-reports"
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# Worldgen — terrain (Stardust Labs suite)
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"terralith"
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"tectonic"
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"amplified-nether"
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"nullscape"
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# Worldgen — structures (YUNG's suite)
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"yungs-api"
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"yungs-better-dungeons"
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"yungs-better-strongholds"
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"yungs-better-ocean-monuments"
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"yungs-better-mineshafts"
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"yungs-better-desert-temples"
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"yungs-better-jungle-temples"
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"yungs-better-witch-huts"
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"yungs-better-nether-fortresses"
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"yungs-better-end-island"
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"yungs-extras"
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"yungs-bridges"
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# Client mod compatibility (optional on client side)
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"appleskin"
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"simple-voice-chat"
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# QoL
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"oneplayersleep"
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"netherportalfix"
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"blossomlib"
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"blossomtpa"
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"double-shulker-shell-drops"
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"afkplus"
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# Moderation
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"ledger"
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"styled-chat"
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# Discord bridge
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"discord-mc-chat"
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# Utilities
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"chunky"
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];
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jvmFlags = builtins.concatStringsSep " " [
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"-XX:+UseG1GC"
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"-XX:+ParallelRefProcEnabled"
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"-XX:MaxGCPauseMillis=200"
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"-XX:+UnlockExperimentalVMOptions"
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"-XX:+DisableExplicitGC"
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"-XX:G1NewSizePercent=30"
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"-XX:G1MaxNewSizePercent=40"
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"-XX:G1HeapRegionSize=8M"
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"-XX:G1ReservePercent=20"
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"-XX:G1MixedGCCountTarget=4"
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"-XX:InitiatingHeapOccupancyPercent=15"
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"-XX:G1MixedGCLiveThresholdPercent=90"
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"-XX:SurvivorRatio=32"
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"-XX:+PerfDisableSharedMem"
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"-XX:MaxTenuringThreshold=1"
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];
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in
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{
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virtualisation.docker.enable = true;
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virtualisation.oci-containers.backend = "docker";
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virtualisation.oci-containers.containers.minecraft = {
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image = "itzg/minecraft-server:java21";
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ports = [
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"25565:25565" # Minecraft
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"24454:24454/udp" # Simple Voice Chat
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];
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volumes = [
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"${mcDataDir}:/data"
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];
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environment = {
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EULA = "TRUE";
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TYPE = "FABRIC";
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VERSION = "1.21.4";
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MEMORY = "2560M";
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MAX_PLAYERS = "10";
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DIFFICULTY = "hard";
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PVP = "FALSE";
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VIEW_DISTANCE = "10";
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SIMULATION_DISTANCE = "10";
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ENABLE_WHITELIST = "TRUE";
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ENFORCE_WHITELIST = "TRUE";
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WHITELIST = "jetpham";
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OPS = "jetpham";
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MOTD = "meet cool people \\u00A7e\\u0026\\u0026\\u00A7r build cool things";
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OVERRIDE_ICON = "TRUE";
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MODRINTH_PROJECTS = modrinthMods;
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JVM_XX_OPTS = jvmFlags;
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};
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environmentFiles = [ "/run/minecraft-seed.env" ];
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extraOptions = [
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"--memory=3g"
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"--cpus=2"
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"--pids-limit=256"
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"--security-opt=no-new-privileges"
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];
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};
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# Ensure data directory exists
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systemd.tmpfiles.rules = [
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"d ${mcDataDir} 0755 root root -"
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];
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# Write seed env file and copy mod configs before container starts
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systemd.services.minecraft-mod-configs = {
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description = "Set up mod configs and seed for Minecraft container";
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wantedBy = [ "multi-user.target" ];
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before = [ "docker-minecraft.service" ];
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after = [ "agenix.service" ];
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serviceConfig = {
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Type = "oneshot";
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ExecStart = pkgs.writeShellScript "setup-mod-configs" ''
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set -euo pipefail
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# Write seed from agenix secret
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SEED=$(cat ${config.age.secrets.minecraft-seed.path})
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printf 'SEED=%s\n' "$SEED" > /run/minecraft-seed.env
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chmod 600 /run/minecraft-seed.env
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# Server icon
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cp ${../server-icon.png} ${mcDataDir}/server-icon.png
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# Mod configs
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mkdir -p ${mcDataDir}/plugins/Chunky
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cp ${../configs/chunky.yml} ${mcDataDir}/plugins/Chunky/config.yml
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mkdir -p ${mcDataDir}/config
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cp ${../configs/anti-xray.toml} ${mcDataDir}/config/anti-xray.toml
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'';
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};
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};
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}
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