Merge pull request #316248 from shivaraj-bh/open-webui

open-webui: init at 0.2.4

2 files changed, 95 insertions, 0 deletions

diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index b7725051597a3..4c81336fc2310 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -771,6 +771,7 @@
   ./services/misc/octoprint.nix
   ./services/misc/ollama.nix
   ./services/misc/ombi.nix
+  ./services/misc/open-webui.nix
   ./services/misc/osrm.nix
   ./services/misc/owncast.nix
   ./services/misc/packagekit.nix
diff --git a/nixos/modules/services/misc/open-webui.nix b/nixos/modules/services/misc/open-webui.nix
new file mode 100644
index 0000000000000..de61ff80e9228
--- /dev/null
+++ b/nixos/modules/services/misc/open-webui.nix
@@ -0,0 +1,94 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  inherit (lib) types;
+
+  cfg = config.services.open-webui;
+in
+{
+  options = {
+    services.open-webui = {
+      enable = lib.mkEnableOption "Enable open-webui, an interactive chat web app";
+      package = lib.mkPackageOption pkgs "open-webui" { };
+
+      stateDir = lib.mkOption {
+        type = types.path;
+        default = "/var/lib/open-webui";
+        description = "State directory of open-webui.";
+      };
+
+      host = lib.mkOption {
+        type = types.str;
+        default = "localhost";
+        description = "Host of open-webui";
+      };
+
+      port = lib.mkOption {
+        type = types.port;
+        default = 8080;
+        description = "Port of open-webui";
+      };
+
+      environment = lib.mkOption {
+        type = types.attrsOf types.str;
+        default = { };
+        example = ''
+          {
+            OLLAMA_API_BASE_URL = "http://localhost:11434";
+            # Disable authentication
+            WEBUI_AUTH = "False";
+          }
+        '';
+        description = "Extra environment variables for open-webui";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.services.open-webui = {
+      description = "User-friendly WebUI for LLMs (Formerly Ollama WebUI)";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+
+      preStart = ''
+        mkdir -p ${cfg.stateDir}/static
+      '';
+
+      environment = {
+        STATIC_DIR = "${cfg.stateDir}/static";
+        DATA_DIR = "${cfg.stateDir}";
+      } // cfg.environment;
+
+      serviceConfig = {
+        ExecStart = "${lib.getExe cfg.package} serve --host ${cfg.host} --port ${toString cfg.port}";
+        WorkingDirectory = cfg.stateDir;
+        StateDirectory = "open-webui";
+        RuntimeDirectory = "open-webui";
+        RuntimeDirectoryMode = "0755";
+        PrivateTmp = true;
+        DynamicUser = true;
+        DevicePolicy = "closed";
+        LockPersonality = true;
+        MemoryDenyWriteExecute = false; # onnxruntime/capi/onnxruntime_pybind11_state.so: cannot enable executable stack as shared object requires: Permission Denied
+        PrivateUsers = true;
+        ProtectHome = true;
+        ProtectHostname = true;
+        ProtectKernelLogs = true;
+        ProtectKernelModules = true;
+        ProtectKernelTunables = true;
+        ProtectControlGroups = true;
+        ProcSubset = "all"; # Error in cpuinfo: failed to parse processor information from /proc/cpuinfo
+        RestrictNamespaces = true;
+        RestrictRealtime = true;
+        SystemCallArchitectures = "native";
+        UMask = "0077";
+      };
+    };
+  };
+
+  meta.maintainers = with lib.maintainers; [ shivaraj-bh ];
+}