110 lines
3.1 KiB
Nix
110 lines
3.1 KiB
Nix
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{ config, lib, options, pkgs, ... }:
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with lib;
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let
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papermc = pkgs.callPackage ../packages/minecraft/paper.nix { };
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cfg = config.services.minecraft;
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opt = options.services.minecraft;
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serverProperties = pkgs.writeText "server.properties" ''
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${cfg.properties.extraConfig}
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'';
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whitelistJson = pkgs.writeText "whitelist.json" ''
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${builtins.toJSON cfg.properties.whitelist}
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'';
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in
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{
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options.services.minecraft = {
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enable = mkOption {
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default = false;
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type = types.bool;
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description = "Enable minecraft server";
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};
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stateDir = mkOption {
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default = "/var/lib/minecraft";
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type = types.string;
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description = "Path to the minecraft server state directory";
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};
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properties = {
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extraConfig = mkOption {
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default = "";
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type = types.string;
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description = "Extra configuration to be added to the minecraft server properties file";
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};
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};
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whitelist = mkOption {
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default = [ ];
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type = types.listOf (types.submodule {
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options = {
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uuid = mkOption {
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type = types.string;
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description = "UUID of the whitelist entry";
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};
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name = mkOption {
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type = types.string;
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description = "Name of the whitelist entry";
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};
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};
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});
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};
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};
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config = mkIf cfg.enable {
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systemd.services.minecraft = {
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description = "Minecraft Server";
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after = [ "network.target" ];
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wantedBy = [ "multi-user.target" ];
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path = [ papermc ];
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preStart = ''
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# Agree to the EULA
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echo "eula=true" > eula.txt
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# Update the server properties
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cp ${serverProperties} server.properties
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# Update the whitelist
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cp ${whitelistJson} whitelist.json
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'';
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serviceConfig = {
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Type = "simple";
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User = "minecraft";
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Group = "minecraft";
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WorkingDirectory = cfg.stateDir;
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ExecStart = "${minecraft}/bin/minecraft-server";
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Restart = "always";
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RuntimeDirectory = "minecraft";
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RuntimeDirectoryMode = "0755";
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UMask = "0027";
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CapabilityBoundingSet = "";
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# Security
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NoNewPrivileges = true;
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# Sandboxing
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ProtectSystem = "strict";
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ProtectHome = true;
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PrivateTmp = true;
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PrivateDevices = true;
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PrivateUsers = true;
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ProtectHostname = true;
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ProtectClock = true;
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ProtectKernelTunables = true;
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ProtectKernelModules = true;
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ProtectKernelLogs = true;
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ProtectControlGroups = true;
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RestrictAddressFamilies = [ "AF_UNIX AF_INET AF_INET6" ];
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LockPersonality = true;
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MemoryDenyWriteExecute = true;
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RestrictRealtime = true;
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RestrictSUIDSGID = true;
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PrivateMounts = true;
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};
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environment = {
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USER = "minecraft";
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HOME = cfg.stateDir;
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};
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};
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users.users.minecraft = {
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description = "Minecraft Server";
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home = cfg.stateDir;
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useDefaultShell = true;
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group = "minecraft";
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isSystemUser = true;
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};
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users.groups.minecraft = { };
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};
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}
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