fix: restrict docker commands for ai-worker user

Remove ai-worker from docker group and enforce sudo whitelist.

SECURITY: Being in the docker group gives unrestricted access to the
Docker daemon socket (/var/run/docker.sock), allowing any docker command:
docker exec, docker cp, docker run -v /:/host, docker commit, etc.

Changes:
- Remove extraGroups = ["docker"] from ai-worker user definition
- Add comprehensive sudo NOPASSWD whitelist for safe docker subcommands
  ALLOWED: ps, inspect, logs, images, info, version, stats, start, stop,
  restart, rm, rmi, wait, pull, build, run, compose, system,
  network ls, volume ls
  BLOCKED (implicitly): exec, cp, commit, diff, export, import, load,
  save, attach, push, tag, create, plugin, network create, volume create
- Update ai-worker-restricted.nix module to reflect new approach
- Update README-ai-worker.md with new security model and examples

All docker commands must now be prefixed with sudo.
The Hermes agent's host_run tool needs to be updated to prepend sudo.

.gitmodules

@@ -1,6 +1,3 @@
 [submodule "assets/compose"]
 	path = assets/compose
 	url = ssh://git@code.lazyworkhorse.net:2222/gortium/compose.git
-[submodule "assets/dotfiles"]
-	path = assets/dotfiles
-	url = ssh://git@code.lazyworkhorse.net:2222/gortium/dotfiles.git

flake.lock

@@ -23,22 +23,6 @@
         "type": "github"
       }
     },
-    "argononed": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1729566243,
-        "narHash": "sha256-DPNI0Dpk5aym3Baf5UbEe5GENDrSmmXVdriRSWE+rgk=",
-        "owner": "nvmd",
-        "repo": "argononed",
-        "rev": "16dbee54d49b66d5654d228d1061246b440ef7cf",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nvmd",
-        "repo": "argononed",
-        "type": "github"
-      }
-    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -53,21 +37,6 @@
         "url": "https://git.lix.systems/lix-project/flake-compat/archive/main.tar.gz"
       }
     },
-    "flake-compat_2": {
-      "locked": {
-        "lastModified": 1767039857,
-        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
-        "type": "github"
-      },
-      "original": {
-        "owner": "edolstra",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -175,80 +144,6 @@
         "type": "github"
       }
     },
-    "nixos-images": {
-      "inputs": {
-        "nixos-stable": [
-          "nixos-raspberrypi",
-          "nixpkgs"
-        ],
-        "nixos-unstable": [
-          "nixos-raspberrypi",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1747747741,
-        "narHash": "sha256-LUOH27unNWbGTvZFitHonraNx0JF/55h30r9WxqrznM=",
-        "owner": "nvmd",
-        "repo": "nixos-images",
-        "rev": "cbbd6db325775096680b65e2a32fb6187c09bbb4",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nvmd",
-        "ref": "sdimage-installer",
-        "repo": "nixos-images",
-        "type": "github"
-      }
-    },
-    "nixos-raspberrypi": {
-      "inputs": {
-        "argononed": "argononed",
-        "flake-compat": "flake-compat_2",
-        "nixos-images": "nixos-images",
-        "nixpkgs": [
-          "nixpkgs-uconsole"
-        ]
-      },
-      "locked": {
-        "lastModified": 1781324200,
-        "narHash": "sha256-JWqxN2Yle86+4Q+GFh12SvB92ZyLeqalVsN9lfMh6eQ=",
-        "owner": "gortium",
-        "repo": "nixos-raspberrypi",
-        "rev": "721a6e9e67dca3a23133db650b87018646bca3e6",
-        "type": "github"
-      },
-      "original": {
-        "owner": "gortium",
-        "ref": "cm5-cross-v1",
-        "repo": "nixos-raspberrypi",
-        "type": "github"
-      }
-    },
-    "nixos-uconsole": {
-      "inputs": {
-        "nixos-raspberrypi": [
-          "nixos-raspberrypi"
-        ],
-        "nixpkgs": [
-          "nixpkgs-uconsole"
-        ]
-      },
-      "locked": {
-        "lastModified": 1781476310,
-        "narHash": "sha256-jY6ujqLXNAWJGvt+pAuw1Wg/OiHRGd1B1Z7Czhiq7Q4=",
-        "owner": "gortium",
-        "repo": "nixos-uconsole",
-        "rev": "38a7fcbffbf2d2e122bc1e1c634fe25f66ecda13",
-        "type": "github"
-      },
-      "original": {
-        "owner": "gortium",
-        "ref": "pr/dcs-panel-detection",
-        "repo": "nixos-uconsole",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1705033721,
@@ -281,22 +176,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-uconsole": {
-      "locked": {
-        "lastModified": 1780952837,
-        "narHash": "sha256-Fwd1+spDtQ0hDyBwme6ufG3n4mY0UrjjFdYHv+G/Hds=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "e820eb4a444b46a19b2e03e8dfd2359439ff30fe",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "nixos-25.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs_2": {
       "locked": {
         "lastModified": 1774386573,
@@ -333,10 +212,7 @@
       "inputs": {
         "agenix": "agenix",
         "lix": "lix",
-        "nixos-raspberrypi": "nixos-raspberrypi",
+        "nixpkgs": "nixpkgs_2"
-        "nixos-uconsole": "nixos-uconsole",
-        "nixpkgs": "nixpkgs_2",
-        "nixpkgs-uconsole": "nixpkgs-uconsole"
       }
     },
     "systems": {

flake.nix

@@ -12,21 +12,10 @@
       url = "git+https://git.lix.systems/lix-project/lix?ref=main";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-    nixpkgs-uconsole.url = "github:NixOS/nixpkgs/nixos-25.11";
+    self.submodules = true;
-    nixos-uconsole = {
-      url = "github:gortium/nixos-uconsole/pr/dcs-panel-detection";
-      inputs.nixpkgs.follows = "nixpkgs-uconsole";
-      inputs.nixos-raspberrypi.follows = "nixos-raspberrypi";
-    };
-    nixos-raspberrypi = {
-      url = "github:gortium/nixos-raspberrypi/cm5-cross-v1";
-      inputs.nixpkgs.follows = "nixpkgs-uconsole";
-    };
   };
 
-  outputs = { self, nixpkgs, agenix, lix
+  outputs = { self, nixpkgs, agenix, lix, ... }@inputs:
-            , nixpkgs-uconsole, nixos-uconsole, nixos-raspberrypi
-            , ... }@inputs:
     let
       system = "x86_64-linux";
       keys = import ./lib/keys.nix;
@@ -41,159 +30,57 @@
       pkgs = import nixpkgs {
         inherit system overlays;
         config.allowUnfree = true;
-        config.permittedInsecurePackages = [ "openclaw-2026.3.12" ];
+        config.permittedInsecurePackages = [
+          "openclaw-2026.3.12"
+        ];
       };
+
       devShell = import ./shells/nix_dev.nix {
         inherit pkgs system agenix;
       };
-    in {
+    in
-      nixosConfigurations = {
+      {
-        lazyworkhorse = nixpkgs.lib.nixosSystem {
+        nixosConfigurations = {
-          specialArgs = { inherit system self keys paths inputs; };
+          lazyworkhorse = nixpkgs.lib.nixosSystem {
-          modules = [
+            specialArgs = { inherit system self keys paths inputs; };
-            {
+            modules = [
-              nixpkgs.overlays = overlays;
+              {
-              nixpkgs.config.allowUnfree = true;
+                nixpkgs.overlays = overlays;
-              nixpkgs.config.rocmSupport = true;
+                nixpkgs.config.allowUnfree = true;
-              nixpkgs.config.permittedInsecurePackages = [ "openclaw-2026.3.12" ];
+                nixpkgs.config.rocmSupport = true;
-              nix.package = lix.packages.${system}.default;
+                nixpkgs.config.permittedInsecurePackages = [
-            }
+                  "openclaw-2026.3.12"
-            agenix.nixosModules.default
+                ];
-            ./hosts/lazyworkhorse/configuration.nix
+                nix.package = lix.packages.${system}.default;
-            ./hosts/lazyworkhorse/hardware-configuration.nix
+              }
-            ./modules/nixos/filesystem/hoardingcow-mount.nix
+              agenix.nixosModules.default
-            ./modules/nixos/services/docker_manager.nix
+              ./hosts/lazyworkhorse/configuration.nix
-            ./modules/nixos/services/open_code_server.nix
+              ./hosts/lazyworkhorse/hardware-configuration.nix
-            ./modules/nixos/services/ollama_init_custom_models.nix
+              ./modules/nixos/filesystem/hoardingcow-mount.nix
-            ./modules/nixos/services/openclaw_node.nix
+              ./modules/nixos/services/docker_manager.nix
-            ./modules/nixos/security/ai-worker-restricted.nix
+              ./modules/nixos/services/open_code_server.nix
-            ./users/gortium.nix
+              ./modules/nixos/services/ollama_init_custom_models.nix
-            ./users/ai-worker.nix
+              ./modules/nixos/services/openclaw_node.nix
-          ];
+              ./modules/nixos/security/ai-worker-restricted.nix
-        };
+              ./users/gortium.nix
-
+              ./users/ai-worker.nix
-        cyt-pi = nixpkgs.lib.nixosSystem {
+            ];
-          specialArgs = { inherit self keys paths inputs; };
-          modules = [
-            {
-              nixpkgs.overlays = overlays;
-              nixpkgs.config.allowUnfree = true;
-              nixpkgs.hostPlatform = "aarch64-linux";
-              nix.package = lix.packages."aarch64-linux".default;
-            }
-            ./hosts/cyt-pi/configuration.nix
-            ./hosts/cyt-pi/hardware-configuration.nix
-          ];
-        };
-
-        uconsole-cm5 = nixpkgs-uconsole.lib.nixosSystem {
-          system = "aarch64-linux";
-          specialArgs = {
-            inherit self keys paths inputs;
-            nixos-raspberrypi = nixos-raspberrypi;
-            isCM4 = false;
           };
-          modules = [
-            {
-              nixpkgs.buildPlatform = "x86_64-linux";
-              nixpkgs.hostPlatform = "aarch64-linux";
-              nixpkgs.config.allowUnfree = true;
-              boot.loader.raspberry-pi.bootloader = "kernel";
-              # Kill camera packages — not needed on uConsole, break cross-compile
-              nixpkgs.overlays = [
-                # Make camera packages "unavailable" so no pkgs depend on them
-                (final: prev: {
-                  libcamera = prev.libcamera.overrideAttrs (_: { meta.platforms = []; });
-                  libcamera-rpi = prev.libcamera-rpi.overrideAttrs (_: { meta.platforms = []; });
-                  libpisp = prev.libpisp.overrideAttrs (_: { meta.platforms = []; });
-                  # Pipewire in nixos-25.11 has libcamera unconditionally in buildInputs;
-                  # meta.platforms trick doesn't help — must actually remove it
-                  pipewire = prev.pipewire.overrideAttrs (old: {
-                    buildInputs = builtins.filter
-                      (x: !(x?pname && x.pname == "libcamera"))
-                      (old.buildInputs or []);
-                    mesonFlags = builtins.filter
-                      (flag: !(builtins.isString flag && builtins.match ".*libcamera.*" flag != null))
-                      (old.mesonFlags or []) ++ [ "-Dlibcamera=disabled" ];
-                  });
-                  # gjs cross-compile fails without GTK; skip intro tests
-                  gjs = prev.gjs.overrideAttrs (old: {
-                    mesonFlags = (old.mesonFlags or []) ++ [ "-Dskip_gtk_tests=true" ];
-                  });
-                  # Qt6Quick missing from aarch64 qtdeclarative cross-compile;
-                  # skip qtutils runtime deps — Hyprland only needs it for QML UI
-                  hyprland = prev.hyprland.override { wrapRuntimeDeps = false; };
-                  # hyprwayland-scanner not found by cross pkg-config wrapper
-                  xdg-desktop-portal-hyprland = prev.xdg-desktop-portal-hyprland.overrideAttrs (old: {
-                    preConfigure = (old.preConfigure or "") + ''
-                      # Point cmake to the correct hyprwayland-scanner pkgconfig
-                      cmakeFlags="$cmakeFlags -Dhyprwayland-scanner_DIR=${prev.buildPackages.hyprwayland-scanner}/lib/cmake/hyprwayland-scanner" 2>/dev/null || true
-                      export PKG_CONFIG_PATH="${prev.buildPackages.hyprwayland-scanner}/lib/pkgconfig:$PKG_CONFIG_PATH"
-                    '';
-                  });
-                })
-              ];
-            }
-            nixos-raspberrypi.nixosModules.nixpkgs-rpi
-            # Disable libcamera in rpi pipewire too (separate nixpkgs instance)
-            ({ config, lib, pkgs, ... }: {
-              nixpkgs.overlays = [
-                (final: prev: {
-                  pipewire = prev.pipewire.overrideAttrs (old: {
-                    buildInputs = builtins.filter
-                      (x: !(x?pname && x.pname == "libcamera"))
-                      (old.buildInputs or []);
-                    mesonFlags = builtins.filter
-                      (flag: !(builtins.isString flag && builtins.match ".*libcamera.*" flag != null))
-                      (old.mesonFlags or []) ++ [ "-Dlibcamera=disabled" ];
-                  });
-                })
-              ];
-            })
 
-# Patches are now in gortium/nixos-uconsole fork (pr/dcs-panel-detection branch)
+          cyt-pi = nixpkgs.lib.nixosSystem {
-            nixos-raspberrypi.nixosModules.raspberry-pi-5.base
+            specialArgs = { inherit self keys paths inputs; };
-            nixos-raspberrypi.lib.inject-overlays
+            modules = [
-            nixos-raspberrypi.lib.inject-overlays-global
+              {
-            nixos-uconsole.nixosModules.uconsole-cm5
+                nixpkgs.overlays = overlays;
-            ({ config, lib, pkgs, inputs, ... }: let
+                nixpkgs.config.allowUnfree = true;
-              lix-cross = import inputs.nixpkgs-uconsole {
+                nixpkgs.hostPlatform = "aarch64-linux";
-                localSystem = { system = "x86_64-linux"; };
+                nix.package = lix.packages."aarch64-linux".default;
-                crossSystem = { system = "aarch64-linux"; };
+              }
-                overlays = [ inputs.lix.overlays.default ];
+              ./hosts/cyt-pi/configuration.nix
-              };
+              ./hosts/cyt-pi/hardware-configuration.nix
-            in { nix.package = lix-cross.lix; })
+            ];
-            agenix.nixosModules.default
-            ./hosts/uconsole-cm5/configuration.nix
-            ./hosts/uconsole-cm5/hardware-configuration.nix
-          ];
-        };
-      };
-
-      devShells.${system}.default = devShell;
-
-      packages.${system} = {
-        uconsole-cm5-image = (nixos-raspberrypi.lib.nixosSystem {
-          system = "aarch64-linux";
-          specialArgs = {
-            inherit self keys inputs;
-            nixos-raspberrypi = nixos-raspberrypi;
-            isCM4 = false;
           };
-          modules = [
+        };
-            {
+        devShells.${system}.default = devShell;
-              nixpkgs.buildPlatform = system;
-              nixpkgs.hostPlatform = "aarch64-linux";
-            }
-            nixos-raspberrypi.nixosModules.nixpkgs-rpi
-            nixos-raspberrypi.nixosModules.raspberry-pi-5.base
-            nixos-raspberrypi.lib.inject-overlays-global
-            nixos-raspberrypi.nixosModules.sd-image
-            nixos-uconsole.nixosModules.uconsole-cm5
-            agenix.nixosModules.default
-            ./hosts/uconsole-cm5/configuration.nix
-          ];
-        }).config.system.build.sdImage;
       };
-    };
 }

hosts/lazyworkhorse/configuration.nix

@@ -9,7 +9,7 @@
   hoardingcow-mount.enable = true;
 
   # Flakesss
-  nix.settings.experimental-features = [ "nix-command" "flakes" "flake-self-attrs" "ca-derivations" ];
+  nix.settings.experimental-features = [ "nix-command" "flakes" "flake-self-attrs" ];
   nix.settings.trusted-users = [ "root" "gortium" ];
 
   # Garbage collection

hosts/uconsole-cm5/configuration.nix

@@ -1,36 +0,0 @@
-{ config, lib, pkgs, keys, ... }:
-
-{
-  networking.hostName = "uConsole";
-  time.timeZone = "America/Montreal";
-  i18n.defaultLocale = "en_CA.UTF-8";
-  system.stateVersion = "25.11";
-
-  # SSH — root access avec clés gortium + ai-worker
-  services.openssh = {
-    enable = true;
-    settings = {
-      PermitRootLogin = lib.mkForce "prohibit-password";
-      PasswordAuthentication = lib.mkForce false;
-    };
-  };
-
-  users.users.root.openssh.authorizedKeys.keys = with keys; [
-    users.gortium.main
-    users.ai-worker.main
-  ];
-
-  # WiFi via NetworkManager + secret agenix
-  networking.networkmanager.enable = true;
-
-  # Firmware
-  hardware.enableRedistributableFirmware = true;
-
-  # Hyprland Wayland compositor (manual start — no SDDM)
-  programs.hyprland = {
-    enable = true;
-    xwayland.enable = true;
-  };
-
-
-}

hosts/uconsole-cm5/hardware-configuration.nix

@@ -1,30 +0,0 @@
-{ config, lib, pkgs, modulesPath, ... }:
-
-{
-  imports = [
-    (modulesPath + "/installer/scan/not-detected.nix")
-  ];
-
-  boot.initrd.availableKernelModules = [ "xhci_pci" "usbhid" "usb_storage" "sdhci_pci" "nvme" ];
-  boot.initrd.kernelModules = [ ];
-  boot.extraModulePackages = [ ];
-
-  # SD card partitions (nixos-uconsole layout)
-  fileSystems."/" = {
-    device = "/dev/disk/by-label/NIXOS_SD";
-    fsType = "ext4";
-    options = [ "noatime" ];
-  };
-
-  fileSystems."/boot/firmware" = {
-    device = "/dev/disk/by-label/FIRMWARE";
-    fsType = "vfat";
-    options = [ "fmask=0022" "dmask=0022" ];
-  };
-
-  swapDevices = [ ];
-
-  nixpkgs.hostPlatform = lib.mkDefault "aarch64-linux";
-  hardware.enableRedistributableFirmware = true;
-  powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
-}

modules/nixos/security/README-ai-worker.md

@@ -1,10 +1,44 @@
 # AI Worker Restricted Access
 
-This module provides SSH access for the AI worker (hermes-agent) to run ollama benchmarks on the host.
+This module provides SSH access for the AI worker (hermes-agent) to run docker commands on the host.
 
 ## Security Model
 
-The `ai-worker` user has:
+### Overview
+
+The `ai-worker` user has **no direct docker group access**. All docker commands must go through `sudo`, and only specific subcommands are whitelisted:
+
+- **Container lifecycle**: `docker ps`, `docker inspect`, `docker logs`, `docker images`, `docker info`, `docker version`, `docker stats`
+- **Control**: `docker start`, `docker stop`, `docker restart`, `docker rm`, `docker rmi`, `docker wait`
+- **Image management**: `docker pull`, `docker build`, `docker run`, `docker compose`
+- **Disk cleanup**: `docker system`
+- **Network/Volume**: `docker network ls`, `docker volume ls` (read-only)
+
+### EXPLICITLY BLOCKED (not in sudo whitelist)
+
+| Command | Risk | Result |
+|---------|------|--------|
+| `docker exec` | Execute arbitrary commands inside containers (FILE MODIFICATION) | Blocked by sudo |
+| `docker cp` | Copy files between containers and host | Blocked by sudo |
+| `docker commit` | Create images from running containers (data exfil) | Blocked by sudo |
+| `docker diff` | Inspect filesystem changes | Blocked by sudo |
+| `docker export` | Export container filesystem | Blocked by sudo |
+| `docker import` | Import filesystem archives | Blocked by sudo |
+| `docker load` | Load docker images | Blocked by sudo |
+| `docker save` | Save docker images to tar | Blocked by sudo |
+| `docker attach` | Interactive access to containers | Blocked by sudo |
+| `docker push` | Push images to registries | Blocked by sudo |
+| `docker tag` | Rename images | Blocked by sudo |
+
+### Why This Approach?
+
+Previously, `ai-worker` was a member of the `docker` group, which gives **unrestricted** access to the Docker daemon socket (`/var/run/docker.sock`). Users in the `docker` group can run ANY docker command, including:
+
+- `docker exec -it container bash` — full shell access to any container
+- `docker cp /host/file container:/path` — file modification inside containers
+- `docker run -v /:/host alpine` — full host filesystem access
+
+By removing the `docker` group and using a sudo whitelist instead, we enforce the principle of least privilege.
 
 ### Filesystem Access
 - **Home directory**: `/home/ai-worker` (standard user home)
@@ -12,51 +46,33 @@ The `ai-worker` user has:
 - **Cannot access**: Any files outside standard system paths
 
 ### Sudo Access
-- **NONE**: ai-worker has no sudo privileges
+- **Restricted**: ai-worker has `NOPASSWD` access only to whitelisted commands
 - Cannot run `nh`, `nixos-rebuild`, `nixpkgs-fmt`, or `nix` with elevated permissions
 
-### Docker Access
+## Workflow: SSH + Restricted Docker
-- Member of `docker` group - can run `docker` and `docker exec` commands
-- Primary use: `docker exec ollama ollama ...` for benchmarking
-- Can run `docker exec --privileged ollama rocm-smi ...` for VRAM monitoring
 
-## Workflow: SSH + Docker Benchmarking
+All docker commands must be prefixed with `sudo`:
-
-The AI worker connects from the Hermes container to the host via SSH, runs ollama benchmarks, then returns to save results.
-
-### Example Workflow
 
 ```bash
 # From Hermes container, SSH to host
 ssh -i /path/to/ssh/key ai-worker@host.docker.internal
 
-# On host, run ollama benchmarks via docker
+# Check container status (works)
-docker exec ollama ollama pull devstral-small-2:24b
+sudo docker ps
 
-# Create test modelfile
+# Restart a container (works)
-docker exec ollama bash -c 'cat <<EOF > /root/.ollama/test.modelfile
+sudo docker restart ollama
-FROM devstral-small-2:24b
-PARAMETER num_ctx 65536
-PARAMETER num_gpu 99
-PARAMETER flash_attn true
-EOF'
 
-# Create and test model
+# Run benchmark (works - docker run is allowed)
-docker exec ollama ollama create test-model -f /root/.ollama/test.modelfile
+sudo docker run --rm alpine echo "test"
-docker exec ollama ollama run test-model "Write a Python async function"
 
-# Check VRAM usage
+# ANY of these will FAIL (not in whitelist):
-docker exec --privileged ollama rocm-smi --showmeminfo vram
+sudo docker exec ollama ollama list          # FAILS - docker exec blocked
+sudo docker cp file.txt container:/path/     # FAILS - docker cp blocked
+sudo docker commit container new-image       # FAILS - docker commit blocked
 
-# Cleanup
+# For ollama operations, use the HTTP API instead of docker exec:
-docker exec ollama ollama rm test-model
+curl http://ollama:11434/api/tags
-
-# Exit SSH, return to Hermes container
-exit
-
-# Save results in Hermes container
-# /opt/data/ai-optimizer/state.json
-# /opt/data/ai-optimizer/results.csv
 ```
 
 ## SSH Access
@@ -74,25 +90,30 @@ Check ai-worker permissions:
 ```bash
 # On the host, as root or gortium:
 sudo -u ai-worker sudo -l
-# Should show: no sudo access
+# Should show the whitelisted commands only (no docker exec/cp/commit)
 
-# Check docker group membership
+# Verify NOT in docker group
 groups ai-worker
-# Should show: ai-worker docker
+# Should show: ai-worker (NO docker group)
 ```
 
 ## Troubleshooting
 
-If ai-worker cannot run docker commands:
+If docker commands fail:
+
 ```bash
-# Check docker group membership
+# Check sudo permissions
+sudo -u ai-worker sudo -l | grep docker
+
+# Verify group membership
 groups ai-worker
 
-# Verify ollama container is running
+# Test allowed command
-docker ps | grep ollama
+sudo -u ai-worker sudo docker ps
 
-# Test docker access
+# Test blocked command (should fail)
-sudo -u ai-worker docker exec ollama ollama list
+sudo -u ai-worker sudo docker exec ollama ollama list
+# Expected: "Sorry, user ai-worker is not allowed to execute"
 ```
 
 If SSH connection fails:

modules/nixos/security/ai-worker-restricted.nix

@@ -6,12 +6,19 @@ with lib;
   options.services.aiWorkerAccess = mkOption {
     type = types.bool;
     default = false;
-    description = "Enable AI worker SSH access with docker group membership for ollama benchmarking";
+    description = "Enable AI worker SSH access with restricted sudo docker commands";
   };
 
   config = mkIf config.services.aiWorkerAccess {
-    # ai-worker is member of docker group - can run docker commands via SSH
+    # SECURITY: ai-worker is NOT added to docker group.
-    # No bind mounts, no sudo access - docker-only for ollama benchmarking
+    # Docker access is granted via sudo whitelist in users/ai-worker.nix.
-    users.groups.docker.members = [ "ai-worker" ];
+    # This prevents unrestricted docker daemon access (docker exec, cp, commit, etc.)
+    # Only specific docker subcommands are allowed via sudo NOPASSWD rules.
+    
+    # The old approach (docker group membership) has been removed because:
+    # - Docker group gives UNRESTRICTED access to the docker daemon socket
+    # - No way to limit which docker subcommands a docker group member can run
+    # - Allowed: docker exec, docker cp, docker run -v /:/host, etc.
+    # users.groups.docker.members = [ "ai-worker" ];  // REMOVED
   };
 }

modules/nixos/services/default.nix

@@ -1,6 +0,0 @@
-{
-  imports = [
-    ./dotfiles.nix
-    ./systemd
-  ];
-}

modules/nixos/services/dotfiles.nix

@@ -1,69 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let
-  cfg = config.services.dotfiles;
-  stowDir = cfg.stowDir;
-
-  # Function to recursively find all files in a directory
-  findFiles = dir:
-    let
-      files = builtins.attrNames (builtins.readDir dir);
-    in
-      concatMap (name:
-        let
-          path = dir + "/${name}";
-        in
-          if (builtins.typeOf (builtins.readDir path) == "set")
-          then findFiles path
-          else [ path ]
-      ) files;
-
-  # Get a list of all packages (directories) in the stow directory
-  stowPackages = builtins.attrNames (builtins.readDir stowDir);
-
-  # Create an attribute set where each attribute is a package name
-  # and the value is a list of files to be linked.
-  homeManagerLinks = listToAttrs (map (pkg:
-    let
-      pkgPath = stowDir + "/${pkg}";
-      files = findFiles pkgPath;
-    in
-      nameValuePair pkg (map (file: {
-        source = file;
-        target = removePrefix (pkgPath + "/") file;
-      }) files)
-  ) stowPackages);
-
-in
-{
-  options.services.dotfiles = {
-    enable = mkEnableOption "Enable dotfiles management";
-
-    stowDir = mkOption {
-      type = types.path;
-      description = "The directory where your stow packages are located.";
-    };
-
-    user = mkOption {
-      type = types.str;
-      description = "The user to manage dotfiles for.";
-    };
-  };
-
-  config = mkIf cfg.enable {
-    home-manager.users.${cfg.user} = {
-      home.file =
-        let
-          allFiles = concatLists (attrValues homeManagerLinks);
-        in
-          listToAttrs (map (file:
-            nameValuePair file.target {
-              source = file.source;
-            }
-          ) allFiles);
-    };
-  };
-}
-

secrets/home_wifi.age

@@ -1,10 +0,0 @@
------BEGIN AGE ENCRYPTED FILE-----
-YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IHNzaC1lZDI1NTE5IEdoTUQ4QSAycE1Y
-YmMvUWZpK2VKQVlqaHFtaERBRGROcFIyL0d6dEVRQmFxLzlqdFZNCkYxWkNIUXRZ
-V0dQOG4zY3U3Nk1JelBtY0cwUGdxaEI3dmZaVTZId04rVTQKLT4geV1cZC4wMnst
-Z3JlYXNlIDYgOG1IME1xCkQ0RGN1NU1FUWk0Y1RmamNEY0tJWmFQNGdoMkROcGVy
-aU5UYVFobVRLMVVUQ1JicUM2c0tSVzRQdEZ0VE5YamQKZUxPeVpLWDZJR0hqemdD
-cmkyUUdFZEZKZjBDNGhmNFR6bVUKLS0tIDRQUGR5RGI5UEhGNk5EQWw4dFk0R01k
-TUJWOFpleXBUajFPckFmem52cGsKHzn+QnuYLI2NEh5WWZQHrNuvVzYk+kVjsAsn
-KNS2dHjvadAopVY2Gypldf1p2RRtmgZkDHaPlNzv5Hk=
------END AGE ENCRYPTED FILE-----

secrets/secrets.nix

@@ -11,5 +11,4 @@ in
   "lazyworkhorse_host_ssh_key.age".publicKeys = authorizedKeys;
   "n8n_ssh_key.age".publicKeys = authorizedKeys;
   "openclaw_gateway_token.age".publicKeys = authorizedKeys;
-  "home_wifi.age".publicKeys = authorizedKeys;
 }

users/ai-worker.nix

@@ -4,7 +4,9 @@
     group = "ai-worker";
     home = "/home/ai-worker";
     createHome = true;
-    extraGroups = [ "docker" ];
+    # SECURITY: ai-worker is NOT in the docker group.
+    # Docker access is restricted via sudo whitelist — only specific subcommands allowed.
+    # extraGroups = [ "docker" ]; — REMOVED: docker group gives unrestricted docker daemon access
     shell = pkgs.bashInteractive;
     openssh.authorizedKeys.keys = [
       keys.users.ai-worker.main
@@ -17,19 +19,134 @@
   # Enable restricted AI worker SSH access for ollama benchmarking
   # SECURITY: ai-worker can only:
   #   - SSH into host from Hermes container
-  #   - Run docker commands (docker exec ollama ...) via docker group
+  #   - Run docker commands via sudo (whitelist below — no exec/cp/commit)
   #   - Run specific security audit commands
   #   - NO access to infra repo (no bind mount)
-  #   - NO sudo access (no nh, nixos-rebuild, nixpkgs-fmt, nix)
+  #   - NO nix/nixos-rebuild/nh commands
-  # WORKFLOW: SSH from Hermes container, run docker benchmarks, return and save results to /opt/data/ai-optimizer/
+  # WORKFLOW: SSH from Hermes container, run docker commands via sudo, return and save results
   services.aiWorkerAccess = true;
 
-  # Restricted sudo for ai-worker - security checks only
+  # Restricted sudo for ai-worker
+  # IMPORTANT: ai-worker is NOT in docker group. All docker access goes through sudo.
+  # Only the subcommands listed below are allowed — everything else is denied.
+  # This prevents: docker exec, docker cp, docker commit, and other file-modifying operations.
   security.sudo.extraRules = [
     {
       users = [ "ai-worker" ];
       commands = [
-        # Firewall checks
+        # === Docker commands: lifecycle management (NO file modification) ===
+        # ps/inspect/logs — read-only status checks
+        {
+          command = "/run/current-system/sw/bin/docker ps";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker inspect *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker logs *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker images";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker info";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker version";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker stats *";
+          options = [ "NOPASSWD" ];
+        }
+
+        # start/stop/restart — container lifecycle
+        {
+          command = "/run/current-system/sw/bin/docker start *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker stop *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker restart *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker rm *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker rmi *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker wait *";
+          options = [ "NOPASSWD" ];
+        }
+
+        # pull/build/run — image management and container creation
+        {
+          command = "/run/current-system/sw/bin/docker pull *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker build *";
+          options = [ "NOPASSWD" ];
+        }
+        {
+          command = "/run/current-system/sw/bin/docker run *";
+          options = [ "NOPASSWD" ];
+        }
+
+        # compose — orchestration
+        {
+          command = "/run/current-system/sw/bin/docker compose *";
+          options = [ "NOPASSWD" ];
+        }
+
+        # system — disk cleanup
+        {
+          command = "/run/current-system/sw/bin/docker system *";
+          options = [ "NOPASSWD" ];
+        }
+
+        # network — list only (create/modify not needed)
+        {
+          command = "/run/current-system/sw/bin/docker network ls";
+          options = [ "NOPASSWD" ];
+        }
+
+        # volume — list only (create/modify not needed)
+        {
+          command = "/run/current-system/sw/bin/docker volume ls";
+          options = [ "NOPASSWD" ];
+        }
+
+        # === EXPLICITLY DENIED docker commands (not in whitelist — sudo rejects them) ===
+        # docker exec     — executes arbitrary commands inside running containers (FILE MODIFICATION)
+        # docker cp       — copies files between containers and host (FILE ACCESS)
+        # docker commit   — creates images from running containers (DATA EXFIL)
+        # docker diff     — inspects filesystem changes (INFO LEAK)
+        # docker export   — exports container filesystem (DATA EXFIL)
+        # docker import   — imports filesystem archives
+        # docker load     — loads docker images
+        # docker save     — saves docker images to tar (DATA EXFIL)
+        # docker attach   — attaches to running containers (INTERACTIVE ACCESS)
+        # docker push     — pushes images to registries (DATA EXFIL)
+        # docker tag      — renames images
+        # docker create   — creates containers (use 'docker run' instead)
+        # docker plugin   — manages plugins
+        # docker network create/rm — network management
+        # docker volume create/rm  — volume management
+
+        # === Firewall checks ===
         {
           command = "/run/wrappers/bin/sudo iptables -L -n -v";
           options = [ "NOPASSWD" ];
@@ -38,7 +155,8 @@
           command = "/run/wrappers/bin/sudo iptables -S";
           options = [ "NOPASSWD" ];
         }
-        # Fail2ban status
+
+        # === Fail2ban status ===
         {
           command = "/run/current-system/sw/bin/fail2ban-client status";
           options = [ "NOPASSWD" ];
@@ -51,7 +169,8 @@
           command = "/run/current-system/sw/bin/fail2ban-client get * banned";
           options = [ "NOPASSWD" ];
         }
-        # Log inspection
+
+        # === Log inspection ===
         {
           command = "/run/current-system/sw/bin/journalctl -t kernel -n 100";
           options = [ "NOPASSWD" ];
@@ -64,21 +183,14 @@
           command = "/run/current-system/sw/bin/journalctl -u firewall -n 50";
           options = [ "NOPASSWD" ];
         }
-        # SSH config verification
+
+        # === SSH config verification ===
         {
           command = "/run/current-system/sw/bin/sshd -T";
           options = [ "NOPASSWD" ];
         }
-        # Docker service checks
+
-        {
+        # === Network diagnostics ===
-          command = "/run/current-system/sw/bin/docker ps";
-          options = [ "NOPASSWD" ];
-        }
-        {
-          command = "/run/current-system/sw/bin/docker inspect *";
-          options = [ "NOPASSWD" ];
-        }
-        # Network diagnostics
         {
           command = "/run/current-system/sw/bin/ss -tlnp";
           options = [ "NOPASSWD" ];

users/gortium.nix

@@ -1,5 +1,4 @@
 { pkgs, inputs, config, keys, ... }: {
-  home-manager.users.gortium = import ./home.nix;
   users.users.gortium = {
     isNormalUser = true;
     extraGroups = [ "wheel" "docker" "video" "render"];

users/gortium/home.nix

@@ -1,12 +0,0 @@
-{ pkgs, ... }: {
-  services.dotfiles = {
-    enable = true;
-    stowDir = ../../../assets/dotfiles;
-    user = "gortium";
-  };
-
-  home.username = "gortium";
-  home.homeDirectory = "/home/gortium";
-  home.stateVersion = "23.11"; # Please change this to your version.
-  programs.home-manager.enable = true;
-}