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43 Commits

Author SHA1 Message Date
993b9c559c fix: restrict docker commands for ai-worker (wrapper blacklist)
SECURITY CHANGE: Keep ai-worker in docker group but block dangerous
docker subcommands via a wrapper script.

Approach:
- docker group membership preserved (ps, start, stop, compose still work)
- Docker binary wrapped with a script that blocks dangerous subcommands
- BLOCKED: exec, cp, commit, diff, export, import, load, save, attach, push, tag
- ALLOWED: ps, images, inspect, logs, start, stop, restart, rm, rmi,
  pull, build, run, compose, system, network ls, volume ls

The wrapper is installed in both system packages and ai-worker's
personal profile to ensure it takes precedence over the real docker.
This is effective for the LLM agent threat model — the agent uses CLI
commands and blocked subcommands simply return an error.

Files modified:
- users/ai-worker.nix — restored docker group, kept sudo audit rules
- modules/nixos/security/ai-worker-restricted.nix — added docker wrapper
  script with blacklist logic and NixOS module integration
- modules/nixos/security/README-ai-worker.md — documentation update
2026-05-20 20:42:32 -04:00
36359de6aa Merge pull request 'feat: add Syncthing firewall port and update compose submodule' (#47) from feat/syncthing-org-sync into master
Reviewed-on: #47
2026-05-19 00:34:42 +00:00
Robert
10b8565fd6 Merge branch 'master' into feat/syncthing-org-sync 2026-05-18 20:33:29 -04:00
Robert
f672696b8e Update submodule for syncthing 2026-05-18 20:31:07 -04:00
0980dca455 fix: update compose submodule to Traefik-routed Syncthing 2026-05-14 21:40:12 -04:00
96bc20ab70 feat: add Syncthing firewall port and update compose submodule 2026-05-14 21:36:26 -04:00
670ae4f002 Merge pull request 'fix: update compose submodule — use ln -sf for iptables-nft' (#46) from fix/vpn-iptables-nft-v3 into master
Reviewed-on: #46
2026-05-13 17:00:16 +00:00
f785abfd49 fix: update compose submodule — use ln -sf for iptables-nft 2026-05-13 12:59:04 -04:00
6f44aa7f76 Merge pull request 'fix: update compose submodule — remove apk add iptables-nft' (#45) from fix/vpn-iptables-nft-v2 into master
Reviewed-on: #45
2026-05-13 16:49:39 +00:00
8d40f1691f fix: update compose submodule — remove apk add iptables-nft 2026-05-13 12:49:14 -04:00
Robert
2dd2e64986 Merge remote-tracking branch 'origin/master' 2026-05-13 12:42:54 -04:00
Robert
23fc5e0597 Give a little more ssh room for tramp 2026-05-13 12:41:09 -04:00
0c9c33d735 Merge pull request 'fix: update wg-easy to official ghcr image with iptables-nft' (#44) from fix/vpn-iptables-nft-upstream into master
Reviewed-on: #44
2026-05-13 16:39:56 +00:00
0bb6890f1c chore: merge master into branch 2026-05-13 12:39:05 -04:00
9d5434425f fix: update compose submodule for wg-easy iptables-nft fix
Updates the assets/compose submodule to point to the fix/vpn-iptables-nft-upstream
branch which contains:
- Switch FROM weejewel/wg-easy:latest (Alpine 3.11, stale 4yr) to
  ghcr.io/wg-easy/wg-easy:latest (actively maintained, Alpine krypton)
- Use update-alternatives instead of raw ln -sf to flip iptables
  from legacy to nftables backend
- Fix compose build context: ./vpn -> . (Dockerfile is at same level)
2026-05-13 12:30:47 -04:00
1fb4320dd1 Merge pull request 'feat: update compose submodule for custom tools startup' (#43) from feat/update-compose-submodule-custom-tools into master
Reviewed-on: #43
2026-05-13 13:58:27 +00:00
51e9f47fd4 feat: update compose submodule for custom tools startup 2026-05-13 09:56:24 -04:00
06b3eb840f fix: update compose submodule for wg-easy iptables-nft fix 2026-05-12 16:29:51 -04:00
28ab52209c Merge pull request 'Add restricted AI worker access with deployment capabilities' (#1) from ai-worker-restricted-access into master
Reviewed-on: #1
2026-05-11 00:48:29 +00:00
Robert
e6f7f0c263 Merge branch 'ai-worker-restricted-access' of ssh://code.lazyworkhorse.net:2222/gortium/infra into ai-worker-restricted-access 2026-05-10 18:06:46 -04:00
Robert
5c136e0765 Merge remote-tracking branch 'origin/master' into ai-worker-restricted-access 2026-05-10 17:06:58 -04:00
Robert
f722af7803 New ollama model creator module version 2026-05-10 16:56:09 -04:00
Robert
c07debf088 Added wireguard keys 2026-05-10 16:51:32 -04:00
6806898f04 feat: update compose submodule for ollama-gfx906 (v0.23.2) + add ollama Dockerfile 2026-05-10 10:12:34 -04:00
96e77c5ef2 Revert "feat: add ai-optimizer benchmark plan and state tracking for ollama GPU benchmarking"
This reverts commit ff7303cf6a.
2026-05-09 20:19:26 +00:00
ff7303cf6a feat: add ai-optimizer benchmark plan and state tracking for ollama GPU benchmarking 2026-05-09 20:13:08 +00:00
9e42f5d2cc Merge pull request 'feat(hermes): update compose submodule for Piper TTS' (#34) from feat/voice-support-v2 into master
Reviewed-on: #34
2026-05-09 19:40:05 +00:00
614883f3c3 fix: update compose submodule - startup permission fix for data volume 2026-05-09 16:04:39 +00:00
374d022593 fix: update compose submodule - permission fix for atomic writes 2026-05-09 15:50:42 +00:00
9679846cdb feat: update compose submodule - Ryan high voice 2026-05-09 15:21:59 +00:00
4056f91ec6 fix: update compose submodule - remove patch step 2026-05-09 14:28:44 +00:00
1ba7d31d2f fix: update compose submodule - patch path fix 2026-05-09 14:27:16 +00:00
c7e9f8a1e0 feat: update compose submodule for Norman voice 2026-05-09 14:20:55 +00:00
bbe1a4a850 fix: update compose submodule - ca-certificates 2026-05-09 14:15:01 +00:00
2b8316060c fix: update compose submodule - COPY path fix 2026-05-09 14:12:15 +00:00
cc2c62faf7 fix: update compose submodule - Dockerfile heredoc fix 2026-05-09 14:09:59 +00:00
47f1ba6cf2 fix: update compose submodule - clean patch script 2026-05-09 13:59:17 +00:00
db89881d75 fix: update compose submodule for full OPENROUTER_API_KEY 2026-05-09 13:55:47 +00:00
0bb0a270e6 fix: update compose submodule for clean Piper Dockerfile 2026-05-09 13:42:02 +00:00
41256ccbde fix: update compose submodule for Piper TTS (replaces Coqui/ROCm) 2026-05-09 13:24:17 +00:00
e551f0e5c5 feat: update compose submodule for ROCm + Coqui TTS Dockerfile 2026-05-09 04:10:05 +00:00
b11d599f37 fix: update compose submodule for simplified Dockerfile 2026-05-09 02:38:41 +00:00
782f2fa9ed feat(hermes): update compose submodule for ROCm GPU voice STT support 2026-05-09 00:22:08 +00:00
9 changed files with 289 additions and 131 deletions

14
flake.lock generated
View File

@@ -70,11 +70,11 @@
"pre-commit-hooks": "pre-commit-hooks"
},
"locked": {
"lastModified": 1777373577,
"narHash": "sha256-K0sXr8tRA9L1FGE8Khl42NR+DmZOY9gNYCP8ljX7TAo=",
"lastModified": 1774721317,
"narHash": "sha256-KS0ElyhZKdUFcfaxfwid3yi2Id3EP9i+dGL16/wx1T8=",
"ref": "main",
"rev": "faaa14a303dabc6309a52cc8e5eba86f9e29ccaf",
"revCount": 19152,
"rev": "d0190cff6f2314cc1c727ff113aea20e086f4bcc",
"revCount": 19103,
"type": "git",
"url": "https://git.lix.systems/lix-project/lix"
},
@@ -178,11 +178,11 @@
},
"nixpkgs_2": {
"locked": {
"lastModified": 1777268161,
"narHash": "sha256-bxrdOn8SCOv8tN4JbTF/TXq7kjo9ag4M+C8yzzIRYbE=",
"lastModified": 1774386573,
"narHash": "sha256-4hAV26quOxdC6iyG7kYaZcM3VOskcPUrdCQd/nx8obc=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "1c3fe55ad329cbcb28471bb30f05c9827f724c76",
"rev": "46db2e09e1d3f113a13c0d7b81e2f221c63b8ce9",
"type": "github"
},
"original": {

View File

@@ -207,6 +207,7 @@
ai = {
path = self + "/assets/compose/ai";
envFile = config.age.secrets.containers_env.path;
ports = [ 22000 ]; # Syncthing TCP sync
};
cloudstorage = {
@@ -474,7 +475,7 @@
services.openssh.settings = {
PermitRootLogin = "no";
MaxAuthTries = 3;
MaxSessions = 10;
MaxSessions = 20;
LoginGraceTime = 30;
ClientAliveInterval = 300;
ClientAliveCountMax = 2;

View File

@@ -1,64 +1,74 @@
# 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 with restrictions.
## Security Model
The `ai-worker` user has:
### Overview
The `ai-worker` user is a member of the `docker` group, but the `docker` binary is wrapped with a script that **blocks dangerous subcommands** while allowing safe operations.
### Blocked Commands
These commands are intercepted by the docker wrapper and rejected:
| Command | Risk | Reason |
|---------|------|--------|
| `docker exec` | Execute arbitrary commands inside running containers | FILE MODIFICATION |
| `docker cp` | Copy files between containers and host | FILE ACCESS |
| `docker commit` | Create images from running containers | DATA EXFIL |
| `docker diff` | Inspect filesystem changes | INFO LEAK |
| `docker export` | Export container filesystem as tar archive | DATA EXFIL |
| `docker import` | Import a tar archive to create filesystem | FILE INJECTION |
| `docker load` | Load images from tar archive | FILE INJECTION |
| `docker save` | Save images to tar archive | DATA EXFIL |
| `docker attach` | Attach to running container's stdio | INTERACTIVE ACCESS |
| `docker push` | Push images to remote registries | DATA EXFIL |
| `docker tag` | Tag/rename images | DATA EXFIL |
Also blocked in compose context: `docker compose exec`, `docker compose cp`, etc.
### Allowed Commands
These commands work normally:
- `docker ps` — list containers
- `docker images` — list images
- `docker inspect` — inspect containers/images
- `docker logs` — view container logs
- `docker start` — start a stopped container
- `docker stop` — stop a running container
- `docker restart` — restart a container
- `docker rm` — remove a stopped container
- `docker rmi` — remove an image
- `docker pull` — pull an image
- `docker build` — build an image
- `docker run` — create and start a container
- `docker compose` — compose orchestration (but not `compose exec`)
- `docker system` — disk management
- `docker network ls` — list networks
- `docker volume ls` — list volumes
### How It Works
1. A wrapper script intercepts `docker` calls in the user's PATH
2. It parses the first non-flag argument to determine the subcommand
3. If the subcommand is in the blocklist, it prints an error and exits
4. Otherwise, it passes through to the real Docker binary
The wrapper is installed both as a system package and in ai-worker's personal profile to ensure it takes precedence over the real docker binary.
### Why Not Use Docker Authorization Plugins?
Docker's native authorization plugin system requires Docker-managed plugins (images) which is complex to deploy in NixOS. A CLI wrapper is simpler, maintainable, and effective for the primary threat model (an LLM agent that uses the docker CLI).
Note: A determined attacker in the docker group can bypass the wrapper by calling the Docker API directly via `/var/run/docker.sock`. For the LLM agent threat model, this is a theoretical bypass — the agent uses CLI commands and `docker exec` returning an error is sufficient to stop it.
### Filesystem Access
- **Home directory**: `/home/ai-worker` (standard user home)
- **No bind mounts**: Cannot access `/home/gortium/infra` or other host files
- **Cannot access**: Any files outside standard system paths
### Sudo Access
- **NONE**: ai-worker has no sudo privileges
- Cannot run `nh`, `nixos-rebuild`, `nixpkgs-fmt`, or `nix` with elevated permissions
### Docker Access
- 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
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
docker exec ollama ollama pull devstral-small-2:24b
# Create test modelfile
docker exec ollama bash -c 'cat <<EOF > /root/.ollama/test.modelfile
FROM devstral-small-2:24b
PARAMETER num_ctx 65536
PARAMETER num_gpu 99
PARAMETER flash_attn true
EOF'
# Create and test model
docker exec ollama ollama create test-model -f /root/.ollama/test.modelfile
docker exec ollama ollama run test-model "Write a Python async function"
# Check VRAM usage
docker exec --privileged ollama rocm-smi --showmeminfo vram
# Cleanup
docker exec ollama ollama rm test-model
# 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
Connect as:
@@ -70,32 +80,42 @@ The working directory will be `/home/ai-worker`. No infra repo access.
## Verification
Check ai-worker permissions:
```bash
# On the host, as root or gortium:
sudo -u ai-worker sudo -l
# Should show: no sudo access
# Verify wrapper is in PATH
sudo -u ai-worker which docker
# Should show: /home/ai-worker/.nix-profile/bin/docker (wrapped version)
# Check docker group membership
# Test blocked command (should fail)
sudo -u ai-worker docker exec ollama ollama list
# Expected: ERROR: docker 'exec' is blocked by security policy
# Test allowed command (should work)
sudo -u ai-worker docker ps
# Expected: CONTAINER ID IMAGE ...
# Verify docker group membership
groups ai-worker
# Should show: ai-worker docker
```
## Troubleshooting
If ai-worker cannot run docker commands:
If docker commands fail unexpectedly:
```bash
# Check docker group membership
groups ai-worker
# Check which docker binary is being used
which docker
# If this shows /run/current-system/sw/bin/docker, the wrapper is not in PATH
# Verify ollama container is running
docker ps | grep ollama
# Check if the wrapper is installed
ls -la $(which docker)
# Test docker access
sudo -u ai-worker docker exec ollama ollama list
# Verify you're running as the right user
whoami
```
If SSH connection fails:
```bash
# Check SSH key is authorized
cat /home/ai-worker/.ssh/authorized_keys

View File

@@ -2,16 +2,123 @@
with lib;
let
# Docker subcommands that are BLOCKED for ai-worker
# These commands allow file modification inside containers or data exfiltration.
blockedCommands = [
"exec" # Execute arbitrary commands in containers (FILE MODIFICATION)
"cp" # Copy files between containers and host (FILE ACCESS)
"commit" # Create images from running containers (DATA EXFIL)
"diff" # Inspect filesystem changes of containers (INFO LEAK)
"export" # Export container filesystem as tar archive (DATA EXFIL)
"import" # Import a tar archive to create filesystem (FILE INJECTION)
"load" # Load images from tar archive (FILE INJECTION)
"save" # Save images to tar archive (DATA EXFIL)
"attach" # Attach to running container's stdio (INTERACTIVE ACCESS)
"push" # Push images to remote registries (DATA EXFIL)
"tag" # Tag/rename images (used with push)
];
blockedDockerArgs = lib.concatStringsSep "|" blockedCommands;
# Docker wrapper script that blocks dangerous subcommands
# Must handle: docker exec, docker compose exec, docker cp, etc.
restrictedDockerScript = pkgs.writeShellScriptBin "docker" ''
set -e
# Blocklist pattern
BLOCKED_PATTERN="^(${blockedDockerArgs})$"
# Parse the first non-flag argument to find the docker subcommand
# Flags: -H, --host, -D, --debug, --config, --context, --log-level, -l
# Also handle: docker compose <subcommand> (subcommand may be after 'compose')
SUBCOMMAND=""
COMPOSE_MODE=false
FOUND_ARG=false
for arg in "$@"; do
# Skip flags and their values
case "$arg" in
-H|--host|-l|--log-level|--config|--context|-D|--debug)
FOUND_ARG=true
continue
;;
--tls|--tlsverify|--tlscacert|--tlscert|--tlskey)
if $FOUND_ARG; then FOUND_ARG=false; else continue; fi
;;
# Skip flag values (the next arg after a flag that takes a value)
-*)
continue
;;
*)
# This is a positional argument first one is the subcommand (or 'compose')
if [ -z "$SUBCOMMAND" ]; then
if [ "$arg" = "compose" ]; then
COMPOSE_MODE=true
continue
fi
SUBCOMMAND="$arg"
break
fi
;;
esac
FOUND_ARG=false
done
# If in compose mode, the subcommand is after 'compose'
if $COMPOSE_MODE; then
# In compose mode, we check the sub-subcommand
NEXT_GOT=""
for arg in "$@"; do
if [ "$NEXT_GOT" = "true" ]; then
if echo "$arg" | grep -qE "$BLOCKED_PATTERN"; then
echo "ERROR: docker compose '$arg' is blocked by security policy" >&2
echo "This command can modify files inside containers." >&2
exit 1
fi
break
fi
if [ "$arg" = "compose" ]; then
NEXT_GOT="true"
fi
done
fi
# Check if the subcommand is blocked
if [ -n "$SUBCOMMAND" ]; then
if echo "$SUBCOMMAND" | grep -qE "$BLOCKED_PATTERN"; then
echo "ERROR: docker '$SUBCOMMAND' is blocked by security policy" >&2
echo "This command can modify files inside containers." >&2
echo "" >&2
echo "Allowed commands: ps, images, inspect, logs, start, stop, restart," >&2
echo " rm, rmi, pull, build, run, compose, system, network ls, volume ls" >&2
exit 1
fi
fi
# Execute the real docker binary
exec ${pkgs.docker}/bin/docker "$@"
'';
in
{
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 docker commands";
};
config = mkIf config.services.aiWorkerAccess {
# ai-worker is member of docker group - can run docker commands via SSH
# No bind mounts, no sudo access - docker-only for ollama benchmarking
# ai-worker is in docker group for normal docker operations
users.groups.docker.members = [ "ai-worker" ];
# Install the docker wrapper for ai-worker
# This puts a filtered 'docker' script in ai-worker's PATH that blocks
# dangerous commands like exec, cp, commit, etc.
# The real docker binary is still available at its store path, but the
# wrapper intercepts it because ~/.nix-profile/bin/ comes before /run/.../sw/bin/ in PATH.
users.users.ai-worker.packages = [ restrictedDockerScript ];
# Also install the wrapper system-wide for consistency
environment.systemPackages = [ restrictedDockerScript ];
};
}

View File

@@ -1,67 +1,87 @@
{ pkgs, ... }: {
systemd.services.init-ollama-model = {
description = "Initialize LLM models with extra context in Ollama Docker";
after = [ "docker-ollama.service" ];
# On s'assure que Docker tourne avant de lancer ce script
after = [ "docker.service" ];
wantedBy = [ "multi-user.target" ];
script = ''
# Wait for Ollama
while ! ${pkgs.curl}/bin/curl -s http://localhost:11434/api/tags > /dev/null; do
sleep 2
done
# Fonction de création asynchrone pour ne pas bloquer le démarrage
(
echo "Starting asynchronous Ollama initialization..."
# Attente d'Ollama (maximum 120 secondes pour éviter une boucle infinie)
TIMEOUT=60
COUNT=0
while ! ${pkgs.curl}/bin/curl -s -f http://127.0.0.1:11434/api/tags > /dev/null; do
if [ $COUNT -ge $TIMEOUT ]; then
echo "Ollama did not become ready in time. Exiting."
exit 1
fi
echo "Waiting for Ollama API to be reachable..."
sleep 5
COUNT=$((COUNT + 5))
done
create_model_if_missing() {
local model_name=$1
local base_model=$2
if ! ${pkgs.docker}/bin/docker exec ollama ollama list | grep -q "$model_name"; then
echo "$model_name not found, creating from $base_model..."
create_model_if_missing() {
local model_name=$1
local base_model=$2
# We use a custom TEMPLATE block to strip the 'currentDate' function
# which is unsupported in Ollama 0.5.7 but present in Devstral's default manifest.
${pkgs.docker}/bin/docker exec ollama sh -c "cat <<EOF > /root/.ollama/$model_name.modelfile
# Vérification robuste via l'API HTTP d'Ollama plutôt que docker exec (évite les conflits de tty)
if ! ${pkgs.curl}/bin/curl -s http://127.0.0.1:11434/api/tags | ${pkgs.jq}/bin/jq -e ".models[] | select(.name == \"$model_name\")" > /dev/null; then
echo "$model_name not found, creating from $base_model..."
# Utilisation d'un fichier temporaire sur l'hôte pour l'injecter proprement dans Docker
TMP_FILE=$(mktemp)
cat <<EOF > "$TMP_FILE"
FROM $base_model
TEMPLATE \"\"\"{{- if .System }}
TEMPLATE """{{- if .System }}
[SYSTEM_PROMPT]
{{ .System }}
[/SYSTEM_PROMPT]
{{- end }}
{{- range .Messages }}
{{- if eq .Role \"user\" }}
{{- if eq .Role "user" }}
[INST]
{{ .Content }}
[/INST]
{{- else if eq .Role \"assistant\" }}
{{- else if eq .Role "assistant" }}
{{ .Content }}
{{- end }}
{{- end }}\"\"\"
{{- end }}"""
PARAMETER num_ctx 131072
PARAMETER num_predict 4096
PARAMETER num_keep 1024
PARAMETER repeat_penalty 1.1
PARAMETER top_k 40
PARAMETER stop \"[INST]\"
PARAMETER stop \"[/INST]\"
PARAMETER stop \"</s>\"
EOF"
${pkgs.docker}/bin/docker exec ollama ollama create "$model_name" -f "/root/.ollama/$model_name.modelfile"
${pkgs.docker}/bin/docker exec ollama rm "/root/.ollama/$model_name.modelfile"
else
echo "$model_name already exists, skipping."
fi
}
PARAMETER stop "[INST]"
PARAMETER stop "[/INST]"
PARAMETER stop "</s>"
EOF
# Create Nemotron
create_model_if_missing "nemotron-3-nano:30b-128k" "nemotron-3-nano:30b"
# Create Devstral
create_model_if_missing "devstral-small-2:24b-128k" "devstral-small-2:24b"
# create_model_if_missing "qwen2.5-coder:32b-128k" "qwen2.5-coder:32b"
# create_model_if_missing "mistral-large-planner:123b" "mistral-large:123b-instruct-v2407-q4_K_S"
# Copie et création dans le conteneur
${pkgs.docker}/bin/docker cp "$TMP_FILE" ollama:/tmp/model.modelfile
${pkgs.docker}/bin/docker exec ollama ollama create "$model_name" -f /tmp/model.modelfile
${pkgs.docker}/bin/docker exec ollama rm /tmp/model.modelfile
rm -f "$TMP_FILE"
else
echo "$model_name already exists, skipping."
fi
}
# Create Nemotron
create_model_if_missing "nemotron-3-nano:30b-128k" "nemotron-3-nano:30b"
# Create Devstral
create_model_if_missing "devstral-small-2:24b-128k" "devstral-small-2:24b"
) &
'';
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
Type = "forking"; # Permet à systemd de savoir que le script passe en arrière-plan via '&'
User = "root";
};
};
}

View File

@@ -0,0 +1,9 @@
-----BEGIN AGE ENCRYPTED FILE-----
YWdlLWVuY3J5cHRpb24ub3JnL3YxCi0+IHNzaC1lZDI1NTE5IEdoTUQ4QSA3VG9Z
MVFPVFc2VVJ3d0h0dmtBUnI3WHl2SzUxTkRZbjFCaGloWmV3dnd3ClcxdnVPeGd6
SU4zR0Q0K1dtVjRRVHd0VW5XSFI0dVFpTjZnYk1DNjRxTVEKLT4gQzlgRy1ncmVh
c2UKeUozOWgyUytSTVF0NjY2STBEb2VadwotLS0gblI3bmJCUWxxU3QrYTEyVFBI
Snc4NC9rTkh0NnZYbUtxUE9hRWRkelpmMAq58fmH6cK13GeD7wGLxKmx10hmJeW4
b7KqnCD1ZP7uG85s32xzVRwRG8RrG4xZo5nR9Mrtg1CoTSFfUGeFnf5xveN+Ej0X
wDVB1LwC+Q==
-----END AGE ENCRYPTED FILE-----

View File

@@ -0,0 +1,11 @@
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@@ -4,6 +4,8 @@
group = "ai-worker";
home = "/home/ai-worker";
createHome = true;
# ai-worker stays in docker group for normal docker operations (ps, start, stop, compose, ...)
# Dangerous commands (exec, cp, commit) are blocked by a wrapper script.
extraGroups = [ "docker" ];
shell = pkgs.bashInteractive;
openssh.authorizedKeys.keys = [
@@ -14,17 +16,14 @@
};
users.groups.ai-worker = {};
# 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 specific security audit commands
# - NO access to infra repo (no bind mount)
# - NO sudo access (no nh, nixos-rebuild, nixpkgs-fmt, nix)
# WORKFLOW: SSH from Hermes container, run docker benchmarks, return and save results to /opt/data/ai-optimizer/
# Enable restricted AI worker SSH access
# SECURITY: ai-worker is in docker group but docker commands are filtered:
# ALLOWED: ps, images, logs, start, stop, restart, rm, rmi, pull, build, run, compose
# BLOCKED: exec, cp, commit, diff, export, import, load, save, attach, push
# The filtering is done by a docker wrapper in ai-worker's PATH.
services.aiWorkerAccess = true;
# Restricted sudo for ai-worker - security checks only
# Restricted sudo for ai-worker - security checks only (not for docker)
security.sudo.extraRules = [
{
users = [ "ai-worker" ];
@@ -69,15 +68,6 @@
command = "/run/current-system/sw/bin/sshd -T";
options = [ "NOPASSWD" ];
}
# Docker service checks
{
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";