Minecraft server config

cavemen/nixrunserver.sh

@@ -0,0 +1,7 @@
+#!/usr/bin/env nix-shell
+#! nix-shell -i bash --pure
+#! nix-shell -p javaPackages.compiler.openjdk19
+#! nix-shell -I nixpkgs=https://github.com/NixOS/nixpkgs/tarball/nixos-25.11
+
+java -Xmx8192M -Xms6144M -jar minecraft_server.jar nogui
+read -rp "Press Enter to continue..."

cavemen/server.properties

@@ -0,0 +1,59 @@
+#Minecraft server properties
+#Tue Mar 10 21:38:12 EET 2026
+allow-flight=true
+allow-nether=false
+broadcast-console-to-ops=true
+broadcast-rcon-to-ops=true
+difficulty=hard
+enable-command-block=false
+enable-jmx-monitoring=false
+enable-query=false
+enable-rcon=false
+enable-status=true
+enforce-secure-profile=false
+enforce-whitelist=false
+entity-broadcast-range-percentage=100
+force-gamemode=false
+function-permission-level=2
+gamemode=survival
+generate-structures=true
+generator-settings={}
+hardcore=false
+hide-online-players=false
+initial-disabled-packs=
+initial-enabled-packs=vanilla
+level-name=world
+level-seed=
+level-type=tfc\:overworld
+max-chained-neighbor-updates=1000000
+max-players=64
+max-tick-time=600000
+max-world-size=29999984
+motd=[TerraFirmaGreg-Modern] Server 0.11.21
+network-compression-threshold=256
+online-mode=false
+op-permission-level=4
+player-idle-timeout=0
+prevent-proxy-connections=false
+pvp=true
+query.port=25565
+rate-limit=0
+rcon.ip=0.0.0.0
+rcon.password=
+rcon.port=25575
+require-resource-pack=false
+resource-pack=
+resource-pack-prompt=
+resource-pack-sha1=
+server-ip=0.0.0.0
+server-port=25565
+simulation-distance=8
+spawn-animals=true
+spawn-monsters=true
+spawn-npcs=true
+spawn-protection=16
+sync-chunk-writes=true
+text-filtering-config=
+use-native-transport=true
+view-distance=8
+white-list=false

install.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 
 # ---- Clone the config repo ----
 cd /root
@@ -22,3 +22,7 @@ cp root/etc/nixos/configuration.nix /mnt/etc/nixos/configuration.nix
 # ---- User configuration ----
 mkdir --parents /mnt/home/h3lp
 cp root/home/h3lp/shell.nix /mnt/home/h3lp/shell.nix
+
+
+# ---- Install NixOS ----
+nixos-install --no-root-passwd

minecraft.env

@@ -0,0 +1,2 @@
+SERVERPACK=https://20111511.xyz/serverpack.tar.xz
+WORLD=https://20111511.xyz/world.tar.xz

notes/fetch_server_plan.txt

@@ -0,0 +1,11 @@
+1) Fetch https://gitea.20111511.xyz/h3lp/autodeploy.git and checkout cavemen branch
+2) minecraft.env will contain the following urls:
+SERVERPACK=https://20111511.xyz/TerraFirmaGreg-Modern-0.11.21-serverpack.zip
+WORLD=https://20111511.xyz/world.tar.xz
+and a cavemen folder with following structure
+.
+├── nixrunserver.sh
+└── server.properties
+3) Download and extract SERVERPACK to /home/h3lp/mineserver
+4) Download and extract WORLD to /home/h3lp/mineserver/world
+5) Move and overwrite all files from cloned git repository cavemen/* to /home/h3lp/mineserver/

root/etc/nixos/configuration.nix

@@ -123,6 +123,9 @@
     neovim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
     wget
     tmux
+    git
+    curl
+    unzip
   ];
 
   # Enable the OpenSSH daemon.
@@ -147,17 +150,68 @@
 
   networking.firewall.enable = false;
 
-  systemd.user.services.tmux = {
-    description = "Tmux session manager";
-    after = [ "network.target" ];
-    wantedBy = [ "default.target" ];
+  systemd.services.minecraft-setup = {
+    description = "Minecraft Server Initial Setup";
+    wantedBy = [ "multi-user.target" ];
+    after = [ "network.target" "minecraft-setup.service" ];  # wait for setup
+    requires = [ "minecraft-setup.service" ];                # and fail if setup fails
+    
+    # Only run if setup hasn't been completed yet
+    unitConfig.ConditionPathExists = "!/home/h3lp/mineserver/.setup-done";
 
     serviceConfig = {
-      ExecStart = "${pkgs.tmux}/bin/tmux new -A -s main";
-      Restart = "always";
-      RestartSec = 5;
+      Type = "oneshot";
       User = "h3lp";
+      RemainAfterExit = true;
+    };
+
+    script = ''
+      set -e
+
+      MINESERVER=/home/h3lp/mineserver
+      TMPDIR=$(mktemp -d)
+
+      # 1) Clone repo and checkout cavemen branch
+      ${pkgs.git}/bin/git clone --branch cavemen \
+        https://gitea.20111511.xyz/h3lp/autodeploy.git "$TMPDIR/autodeploy"
+
+      # 2) Read env vars from minecraft.env
+      source "$TMPDIR/autodeploy/minecraft.env"
+
+      # 3) Download and extract server pack to /home/h3lp/mineserver
+      mkdir -p "$MINESERVER"
+      ${pkgs.curl}/bin/curl -L "$SERVERPACK" -o "$TMPDIR/serverpack.tar.xz"
+      ${pkgs.gnutar}/bin/tar -xJf "$TMPDIR/serverpack.tar.xz" -C "$MINESERVER"
+
+      # 4) Download and extract world to /home/h3lp/mineserver/world
+      mkdir -p "$MINESERVER/world"
+      ${pkgs.curl}/bin/curl -L "$WORLD" -o "$TMPDIR/world.tar.xz"
+      # world.tar.xz contains world folder, otherwise use "$MINESERVER/world"
+      ${pkgs.gnutar}/bin/tar -xJf "$TMPDIR/world.tar.xz" -C "$MINESERVER"
+
+      # 5) Copy cavemen/* files over, overwriting existing
+      cp -rf "$TMPDIR/autodeploy/cavemen/." "$MINESERVER/"
+      chmod +x "$MINESERVER/nixrunserver.sh"
+
+      # Cleanup and mark setup as done
+      rm -rf "$TMPDIR"
+      touch "$MINESERVER/.setup-done"
+    '';
+  };
+
+  systemd.services.minecraft = {
+    description = "Minecraft Server";
+    wantedBy = [ "multi-user.target" ];
+    after = [ "network.target" ];
+
+    serviceConfig = {
+      Type = "forking";
+      User = "h3lp";
+      WorkingDirectory = "/home/h3lp/mineserver";
+      ExecStart = "${pkgs.tmux}/bin/tmux new-session -d -s minecraft /home/h3lp/mineserver/nixrunserver.sh";
+      ExecStop = "${pkgs.tmux}/bin/tmux send-keys -t minecraft 'stop' Enter";
+      RemainAfterExit = true;
     };
   };
-  
+
 }