From 5d516e080bb64abcfd3e7a23e423e9fbccb427ac Mon Sep 17 00:00:00 2001
From: Magic_RB <magic_rb@redalder.org>
Date: Tue, 18 Jul 2023 23:11:45 +0200
Subject: [PATCH] Add new Minecraft modules and containers

Signed-off-by: Magic_RB <magic_rb@redalder.org>
---
 flake.lock                                    |   4 +-
 flake.nix                                     |   2 +
 .../minecraft/ftb-infinity/default.nix        |  28 +++
 .../containers/minecraft/vanilla/default.nix  |  27 +++
 nixng/modules/minecraft-forge.nix             | 162 ++++++++++++++++++
 nixng/modules/minecraft.nix                   |  78 +++++++++
 nixos/systems/blowhole/default.nix            |   2 +
 .../minecraft/ftb-infinity/default.nix        |  24 +++
 .../containers/minecraft/ftb-infinity/job.hcl |  62 +++++++
 .../containers/minecraft/vanilla/default.nix  |  24 +++
 terranix/containers/minecraft/vanilla/job.hcl |  62 +++++++
 terranix/containers/syncthing/default.nix     |   4 +-
 terranix/default.nix                          |  10 ++
 13 files changed, 485 insertions(+), 4 deletions(-)
 create mode 100644 nixng/containers/minecraft/ftb-infinity/default.nix
 create mode 100644 nixng/containers/minecraft/vanilla/default.nix
 create mode 100644 nixng/modules/minecraft-forge.nix
 create mode 100644 nixng/modules/minecraft.nix
 create mode 100644 terranix/containers/minecraft/ftb-infinity/default.nix
 create mode 100644 terranix/containers/minecraft/ftb-infinity/job.hcl
 create mode 100644 terranix/containers/minecraft/vanilla/default.nix
 create mode 100644 terranix/containers/minecraft/vanilla/job.hcl

diff --git a/flake.lock b/flake.lock
index d2140c4..33e3c75 100644
--- a/flake.lock
+++ b/flake.lock
@@ -999,8 +999,8 @@
     "secret": {
       "flake": false,
       "locked": {
-        "lastModified": 1689425916,
-        "narHash": "sha256-lQbVxpynVJa9PMIACISoo1TCWbjF5zy4OXqB+lXWE34=",
+        "lastModified": 1689698765,
+        "narHash": "sha256-K1mWUDZ4MTzHLf2xB59TgNRj/IzbNed/6uaglXJzF2o=",
         "path": "/home/main/dotfiles2/secret",
         "type": "path"
       },
diff --git a/flake.nix b/flake.nix
index 00af377..fa488e6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -71,6 +71,8 @@
         nixng/containers/gitea
         nixng/containers/hydra
         nixng/containers/syncthing
+        nixng/containers/minecraft/vanilla
+        nixng/containers/minecraft/ftb-infinity
 
         overlays/udp-over-tcp.nix
         overlays/emacsclient-remote
diff --git a/nixng/containers/minecraft/ftb-infinity/default.nix b/nixng/containers/minecraft/ftb-infinity/default.nix
new file mode 100644
index 0000000..268ea7f
--- /dev/null
+++ b/nixng/containers/minecraft/ftb-infinity/default.nix
@@ -0,0 +1,28 @@
+{ inputs, ... }:
+{
+  flake.nixngConfigurations.minecraft-ftb-infinity = inputs.nixng.nglib.makeSystem {
+    system = "x86_64-linux";
+    name = "nixng-minecraft";
+    inherit (inputs) nixpkgs;
+    config =
+      { pkgs, lib, ... }:
+        {
+          disabledModules = [ "${inputs.nixng}/modules/services/minecraft.nix" ];
+          imports = [ ../../../modules/minecraft-forge.nix ../../../modules/minecraft.nix ];
+          dumb-init = {
+            enable = true;
+            type.services = {};
+          };
+
+          services.minecraft.forge = {
+            enable = true;
+
+            modpackId = 23;
+            versionId = 99;
+            modpacksChHash = "sha256-wlOcy+Ju81WxJ/z14rslMy3WH+wQdcIZylT7Z3qqJpQ=";
+
+            eulaAccept = true;
+          };
+        };
+  };
+}
diff --git a/nixng/containers/minecraft/vanilla/default.nix b/nixng/containers/minecraft/vanilla/default.nix
new file mode 100644
index 0000000..9875fc8
--- /dev/null
+++ b/nixng/containers/minecraft/vanilla/default.nix
@@ -0,0 +1,27 @@
+{ inputs, ... }:
+{
+  flake.nixngConfigurations.minecraft-vanilla = inputs.nixng.nglib.makeSystem {
+    system = "x86_64-linux";
+    name = "nixng-minecraft";
+    inherit (inputs) nixpkgs;
+    config =
+      { pkgs, lib, nglib, ... }:
+        {
+          disabledModules = [ "${inputs.nixng}/modules/services/minecraft.nix" ];
+          imports = [ ../../../modules/minecraft-forge.nix ../../../modules/minecraft.nix ];
+          dumb-init = {
+            enable = true;
+            type.services = {};
+          };
+
+          services.minecraft.vanilla = {
+            enable = true;
+            eulaAccept = true;
+            extraJavaArguments = [
+              "-Xmx1024M"
+              "-Xms1024M"
+            ];
+          };
+        };
+  };
+}
diff --git a/nixng/modules/minecraft-forge.nix b/nixng/modules/minecraft-forge.nix
new file mode 100644
index 0000000..21b6c8a
--- /dev/null
+++ b/nixng/modules/minecraft-forge.nix
@@ -0,0 +1,162 @@
+{ pkgs, config, lib, ... }:
+with lib;
+let
+  cfg = config.services.minecraft.forge;
+in
+{
+  options.services.minecraft.forge = {
+    enable = mkEnableOption "Enable Minecraft server service.";
+
+    modpackId = mkOption {
+      type = types.int;
+    };
+
+    versionId = mkOption {
+      type = types.int;
+    };
+
+    modpacksChHash = mkOption {
+      type = types.str;
+    };
+
+    serverPackage = mkOption {
+      type = types.package;
+      readOnly = true;
+    };
+
+    eulaAccept = mkOption {
+      type = with types; bool;
+      description = ''
+        By changing the setting below to true you are indicating your agreement to Mojang's EULA (https://account.mojang.com/documents/minecraft_eula).
+      '';
+      default = false;
+    };
+
+    extraJavaArguments = mkOption {
+      type = with types; listOf str;
+      default = [];
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    services.minecraft.forge.serverPackage =
+      let
+        forgeFod =
+          pkgs.stdenv.mkDerivation {
+            pname = "minecraft";
+            version = "unknown";
+
+            outputHashMode = "recursive";
+            outputHashAlgo = "sha256";
+            outputHash = cfg.modpacksChHash;
+
+            buildInputs = with pkgs; [ unzip curl which cacert ];
+
+            phases = [ "fetchPhase" "installPhase" "fixupPhase "];
+
+            fetchPhase = ''
+              curl https://api.modpacks.ch/public/modpack/${toString cfg.modpackId}/${toString cfg.versionId}/server/linux -o modpacks.ch # fuck creeperhost
+              chmod +x modpacks.ch
+            '';
+
+            installPhase = ''
+              ./modpacks.ch ${toString cfg.modpackId} ${toString cfg.versionId} --auto --nojava --path $out
+            '';
+
+            fixupPhase = ''
+              # delete useless non-reproducible data that we really don't need. A less "shotgun" cleaning is possible
+              rm $out/version.json
+            '';
+          };
+      in
+        pkgs.stdenv.mkDerivation {
+          pname = "minecraft";
+          version = "unknown";
+
+          phases = [ "installPhase" ];
+
+          installPhase = ''
+            mkdir -p $out/bin
+
+            cp ${pkgs.writeShellScript "server.sh" ''
+              export PATH=${makeBinPath (with pkgs; [ coreutils findutils bash ])}:$PATH
+              export _path=$PWD
+              echo $0
+
+              echo $rw_paths
+              function linkFile()
+              {
+                _rw_paths=${"( " + lib.concatMapStringsSep " " (x: ''"${x}"'') [ "config" "modpack/gamemodes.json" ] + " )"}
+                _ignore_paths=${"( " + lib.concatMapStringsSep " " (x: ''"${x}"'') [ "start.sh" ] + " )"}
+
+                echo $1 | grep MrTJP
+
+                ignore=0
+                for ignore_path in ''${_ignore_paths[@]} ; do
+                  if [ "''${1##ignore_path}" != "$1" ] || [ "$ignore_path" = "$1" ] ; then
+                    ignore=1
+                    break
+                  fi
+                done
+
+                if [ -f "$1" ] || [ $ignore = 1 ] ; then
+                  return
+                fi
+                mkdir -p "$_path/$(dirname "$1")"
+
+                copy=0
+                for rw_path in ''${_rw_paths[@]} ; do
+                  if [ "''${1##$rw_path}" != "$1" ] || [ "$rw_path" = "$1" ] ; then
+                    copy=1
+                    break
+                  fi
+                done
+
+                if [ "$copy" = 1 ] ; then
+                  cp --no-preserve=mode,ownership "${forgeFod}/$1" "$_path/$1"
+                else
+                  ln -s "${forgeFod}/$1" "$_path/$1"
+                fi
+              }
+              export -f linkFile
+
+              echo $_path
+              if [ "$_path" = "" ] || ! [ -d "$_path" ] ; then
+                echo "invalid path"
+                exit 1
+              fi
+
+              find $_path -type l -lname '/nix/store/*' -delete
+              find $_path -type d -empty -delete
+
+              find ${forgeFod} -type f -printf '%P\n' | tr '\n' '\0' | xargs -0 -I {} sh -c 'linkFile "$1"' sh {} # mkdir -p "$_path/$(dirname "$1")" ; ln -s "${forgeFod}/$1" "$_path/$1"
+
+              ln -s ${pkgs.writeShellScript "start.sh" ''
+                ${lib.getExe pkgs.jdk8} $(cat ${forgeFod}/start.sh  | grep -e "java" -e jar | sed 's/^"java" \(.*\) -jar .*$/\1/') "$@" -jar forge-*.jar
+              ''} $_path/start.sh
+
+              $_path/start.sh
+            ''} $out/bin/server
+          '';
+        };
+
+    init.services.minecraft-forge = {
+      script = pkgs.writeShellScript "minecraft-run" ''
+        set -xe
+
+        mkdir -p /var/lib/minecraft/forge
+        cd /var/lib/minecraft/forge
+        echo "eula=true" > eula.txt
+        ${cfg.serverPackage}/bin/server ${concatMapStringsSep " " (x: ''"${x}"'') cfg.extraJavaArguments}
+      '';
+      enabled = true;
+    };
+
+    assertions = [
+      { assertion = cfg.eulaAccept;
+        message = "You must accept the EULA";
+      }
+    ];
+  };
+}
diff --git a/nixng/modules/minecraft.nix b/nixng/modules/minecraft.nix
new file mode 100644
index 0000000..156356f
--- /dev/null
+++ b/nixng/modules/minecraft.nix
@@ -0,0 +1,78 @@
+{ pkgs, config, lib, ... }:
+with lib;
+let
+  cfg = config.services.minecraft.vanilla;
+in
+{
+  options.services.minecraft.vanilla = {
+    enable = mkEnableOption "Enable Minecraft server service.";
+
+    serverPackage = mkOption {
+      type = types.package;
+      readOnly = true;
+    };
+
+    eulaAccept = mkOption {
+      type = with types; bool;
+      description = ''
+        By changing the setting below to true you are indicating your agreement to Mojang's EULA (https://account.mojang.com/documents/minecraft_eula).
+      '';
+      default = false;
+    };
+
+    extraJavaArguments = mkOption {
+      type = with types; listOf str;
+      default = [];
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    services.minecraft.vanilla.serverPackage =
+      pkgs.stdenv.mkDerivation {
+        pname = "minecraft";
+        version = "unknown";
+
+        src = pkgs.fetchurl {
+          url = "https://piston-data.mojang.com/v1/objects/84194a2f286ef7c14ed7ce0090dba59902951553/server.jar";
+          hash = "sha256-RIsU/6VxKZ7Sk59dgG4dudHhRLcD+ki32Ab0wv00Tik=";
+          executable = true;
+        };
+
+        phases = [ "installPhase" ];
+
+        installPhase = ''
+          mkdir -p $out/bin
+
+          ${lib.getExe pkgs.jdk17} -jar $src --initSettings
+          mkdir -p $out/share
+          cp server.properties $out/share/
+
+          cp ${pkgs.writeShellScript "server.sh" ''
+            [ -f server.properties ] || cp @out@/share/server.properties .
+            ${lib.getExe pkgs.jdk17} "$@" -jar @src@
+          ''} $out/bin/server
+          substituteInPlace $out/bin/server --subst-var src --subst-var out
+        '';
+      };
+
+    init.services.minecraft-vanilla = {
+      script = pkgs.writeShellScript "minecraft-run" ''
+        set -xe
+
+        mkdir -p /var/lib/minecraft/vanilla
+        cd /var/lib/minecraft/vanilla
+        echo "eula=true" > eula.txt
+        ${cfg.serverPackage}/bin/server ${concatMapStringsSep " " (x: ''"${x}"'') cfg.extraJavaArguments}
+      '';
+      enabled = true;
+      shutdownOnExit = true;
+    };
+
+    assertions = [
+      { assertion = cfg.eulaAccept;
+        message = "You must accept the EULA";
+      }
+    ];
+  };
+}
diff --git a/nixos/systems/blowhole/default.nix b/nixos/systems/blowhole/default.nix
index 439c8b1..023930d 100644
--- a/nixos/systems/blowhole/default.nix
+++ b/nixos/systems/blowhole/default.nix
@@ -88,6 +88,8 @@ in
           };
 
           system.stateVersion = "21.05";
+
+          boot.kernel.sysctl."fs.inotify.max_user_instances" = 256;
         });
   };
 }
diff --git a/terranix/containers/minecraft/ftb-infinity/default.nix b/terranix/containers/minecraft/ftb-infinity/default.nix
new file mode 100644
index 0000000..fec1fd1
--- /dev/null
+++ b/terranix/containers/minecraft/ftb-infinity/default.nix
@@ -0,0 +1,24 @@
+{ config', pkgs, elib, vars, ... }:
+let
+  inherit (elib)
+    nfsVolume
+    nomadJob;
+in
+{
+  resource."nomad_volume"."minecraft-ftb-infinity" = nfsVolume {
+    access_mode = "single-node-writer";
+    volume_name   = "minecraft-ftb-infinity";
+    server = "blowhole.hosts.in.redalder.org";
+    share = "/mnt/kyle/infrastructure/minecraft/ftb-infinity";
+    mount_flags = [ "hard" "vers=4.2" "rsize=131072" "wsize=131072" "async" ];
+  };
+
+  resource."nomad_job"."minecraft-ftb-infinity" = nomadJob {
+    jobspec = ./job.hcl;
+    vars = {
+      flake_ref = "${vars.flake_host}?rev=${vars.flake_rev}&ref=${vars.flake_ref}";
+      flake_sha = vars.flake_sha;
+      store_path = config'.flake.nixngConfigurations.minecraft-ftb-infinity.config.system.build.toplevel;
+    };
+  };
+}
diff --git a/terranix/containers/minecraft/ftb-infinity/job.hcl b/terranix/containers/minecraft/ftb-infinity/job.hcl
new file mode 100644
index 0000000..7c1e125
--- /dev/null
+++ b/terranix/containers/minecraft/ftb-infinity/job.hcl
@@ -0,0 +1,62 @@
+variable "flake_ref" {
+  type = string
+}
+
+variable "flake_sha" {
+  type = string
+}
+
+variable "store_path" {
+  type = string
+}
+
+job "minecraft-ftb-infinity" {
+  datacenters = [ "homelab-1" ]
+  type = "service"
+
+  group "minecraft-vanilla" {
+    count = 1
+
+    volume "minecraft-ftb-infinity" {
+      type = "csi"
+      source = "minecraft-ftb-infinity"
+      read_only = false
+
+      attachment_mode = "file-system"
+      access_mode = "single-node-writer"
+    }
+
+    network {
+      mode = "bridge"
+      port "minecraft" {
+        static = 25561
+        to = 25565
+      }
+    }
+
+
+    task "minecraft-ftb-infinity" {
+      driver = "docker"
+
+      config {
+        nix_flake_ref =  "${var.flake_ref}#nixngConfigurations.minecraft-ftb-infinity.config.system.build.toplevel"
+        nix_flake_sha = var.flake_sha
+        nix_flake_store_path = var.store_path
+        entrypoint = [ "init" ]
+
+        ports = ["minecraft"]
+      }
+
+      resources {
+        cpu = 2048
+        memory = 4608
+      }
+
+      volume_mount {
+        volume = "minecraft-ftb-infinity"
+        destination = "/var/lib/minecraft/forge"
+        read_only = false
+      }
+    }
+  }
+}
diff --git a/terranix/containers/minecraft/vanilla/default.nix b/terranix/containers/minecraft/vanilla/default.nix
new file mode 100644
index 0000000..9baa4b4
--- /dev/null
+++ b/terranix/containers/minecraft/vanilla/default.nix
@@ -0,0 +1,24 @@
+{ config', pkgs, elib, vars, ... }:
+let
+  inherit (elib)
+    nfsVolume
+    nomadJob;
+in
+{
+  resource."nomad_volume"."minecraft-vanilla" = nfsVolume {
+    access_mode = "single-node-writer";
+    volume_name   = "minecraft-vanilla";
+    server = "blowhole.hosts.in.redalder.org";
+    share = "/mnt/kyle/infrastructure/minecraft/vanilla";
+    mount_flags = [ "hard" "vers=4.2" "rsize=131072" "wsize=131072" "async" ];
+  };
+
+  resource."nomad_job"."minecraft-vanilla" = nomadJob {
+    jobspec = ./job.hcl;
+    vars = {
+      flake_ref = "${vars.flake_host}?rev=${vars.flake_rev}&ref=${vars.flake_ref}";
+      flake_sha = vars.flake_sha;
+      store_path = config'.flake.nixngConfigurations.minecraft-vanilla.config.system.build.toplevel;
+    };
+  };
+}
diff --git a/terranix/containers/minecraft/vanilla/job.hcl b/terranix/containers/minecraft/vanilla/job.hcl
new file mode 100644
index 0000000..162fac6
--- /dev/null
+++ b/terranix/containers/minecraft/vanilla/job.hcl
@@ -0,0 +1,62 @@
+variable "flake_ref" {
+  type = string
+}
+
+variable "flake_sha" {
+  type = string
+}
+
+variable "store_path" {
+  type = string
+}
+
+job "minecraft-vanilla" {
+  datacenters = [ "homelab-1" ]
+  type = "service"
+
+  group "minecraft-vanilla" {
+    count = 1
+
+    volume "minecraft-vanilla" {
+      type = "csi"
+      source = "minecraft-vanilla"
+      read_only = false
+
+      attachment_mode = "file-system"
+      access_mode = "single-node-writer"
+    }
+
+    network {
+      mode = "bridge"
+      port "minecraft" {
+        static = 25560
+        to = 25565
+      }
+    }
+
+
+    task "minecraft-vanilla" {
+      driver = "docker"
+
+      config {
+        nix_flake_ref =  "${var.flake_ref}#nixngConfigurations.minecraft-vanilla.config.system.build.toplevel"
+        nix_flake_sha = var.flake_sha
+        nix_flake_store_path = var.store_path
+        entrypoint = [ "init" ]
+
+        ports = ["minecraft"]
+      }
+
+      resources {
+        cpu = 512
+        memory = 1280
+      }
+
+      volume_mount {
+        volume = "minecraft-vanilla"
+        destination = "/var/lib/minecraft/vanilla"
+        read_only = false
+      }
+    }
+  }
+}
diff --git a/terranix/containers/syncthing/default.nix b/terranix/containers/syncthing/default.nix
index e3c52fa..e0570f7 100644
--- a/terranix/containers/syncthing/default.nix
+++ b/terranix/containers/syncthing/default.nix
@@ -19,7 +19,7 @@ in
     access_mode = "single-node-writer";
     volume_name   = "syncthing-storage";
     server = "blowhole.hosts.in.redalder.org";
-    share = sharePrefix + "/data";
+    share = sharePrefix + "/storage";
     mount_flags = [ "hard" "vers=4.2" "rsize=131072" "wsize=131072" "async" ];
   };
 
@@ -27,7 +27,7 @@ in
     access_mode = "single-node-writer";
     volume_name   = "syncthing-config";
     server = "blowhole.hosts.in.redalder.org";
-    share = sharePrefix + "/data";
+    share = sharePrefix + "/config";
     mount_flags = [ "hard" "vers=4.2" "rsize=131072" "wsize=131072" "async" ];
   };
 
diff --git a/terranix/default.nix b/terranix/default.nix
index d9863f9..f4ccb96 100644
--- a/terranix/default.nix
+++ b/terranix/default.nix
@@ -101,6 +101,16 @@ in
     source = ./containers/nfs-csi;
   };
 
+  module."minecraft-vanilla" = elib.terraformModule {
+    name = "nfs-csi";
+    source = ./containers/minecraft/vanilla;
+  };
+
+  module."minecraft-ftb-infinity" = elib.terraformModule {
+    name = "nfs-csi";
+    source = ./containers/minecraft/ftb-infinity;
+  };
+
   module."altra" = elib.terraformModule {
     name = "altra";
     source = ./altra.nix;