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47 Commits

Author SHA1 Message Date
9459839d74 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.
2026-05-20 20:34:19 -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
2e14069584 Merge pull request 'feat: add WireGuard VPN stack' (#33) from feat/wireguard-vpn into master
Reviewed-on: #33
2026-05-09 00:13:36 +00:00
Robert
7d3d072961 Merge branch 'master' into ai-worker-restricted-access 2026-05-03 05:28:39 -04:00
f0e21d95e4 fix: ai-worker docker-only access for ollama benchmarking
Remove infra repo bind mount and sudo access from ai-worker user.
Now ai-worker can only:
- SSH into host from Hermes container
- Run docker commands via docker group membership
- Execute ollama benchmarks via docker exec

Results saved to /opt/data/ai-optimizer/ in Hermes container.
2026-04-29 19:55:19 +00:00
18df45819d Add restricted AI worker access with deployment capabilities
- New module: modules/nixos/security/ai-worker-restricted.nix
  - Bind mount for infra repo access (RW)
  - Whitelisted sudo commands: nh, nixos-rebuild, nixpkgs-fmt, nix
  - Audit logging for infra changes
  - Documentation in README-ai-worker.md

- Updated users/ai-worker.nix:
  - Enable services.aiWorkerAccess
  - Lock password (SSH key only)
  - Security documentation comments

- Updated flake.nix:
  - Include new security module

SECURITY: AI must ask for user confirmation before running nh os switch
2026-04-28 15:34:38 +00:00
10 changed files with 479 additions and 57 deletions

106
assets/ollama/Dockerfile Normal file
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@@ -0,0 +1,106 @@
# ollama-gfx906/Dockerfile
#
# Custom ollama image with ROCm 6.1 + gfx906 (MI50) support.
# The official ollama/rocm image ships ROCm 7.2 which dropped gfx906.
# This uses v0.23.2's native CMake build system with AMDGPU_TARGETS including gfx906.
#
# Build: docker build -t ollama/ollama:rocm-gfx906 ai/ollama
FROM rocm/dev-ubuntu-22.04:6.1.2-complete AS builder
# Build dependencies (CMake, Ninja, Go)
ARG CMAKEVERSION=3.31.2
ARG NINJAVERSION=1.12.1
ARG GOLANG_VERSION=1.22.0
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
curl git ccache build-essential pkg-config unzip \
&& rm -rf /var/lib/apt/lists/*
# Install CMake from official binaries
RUN curl -fsSL https://github.com/Kitware/CMake/releases/download/v${CMAKEVERSION}/cmake-${CMAKEVERSION}-linux-x86_64.tar.gz \
| tar xz -C /usr/local --strip-components 1
# Install Ninja
RUN curl -fsSL -o /tmp/ninja.zip \
https://github.com/ninja-build/ninja/releases/download/v${NINJAVERSION}/ninja-linux.zip \
&& unzip /tmp/ninja.zip -d /usr/local/bin && rm /tmp/ninja.zip
# Install Go
RUN curl -fsSL https://go.dev/dl/go${GOLANG_VERSION}.linux-amd64.tar.gz \
| tar xz -C /usr/local
ENV PATH=/usr/local/go/bin:$PATH
ARG OLLAMA_VERSION=v0.23.2
RUN git clone --depth 1 --branch ${OLLAMA_VERSION} https://github.com/ollama/ollama.git /build
WORKDIR /build
# ROCm paths
ENV HIP_PATH=/opt/rocm
ENV ROCM_PATH=/opt/rocm
ENV CMAKE_GENERATOR=Ninja
ENV LDFLAGS=-s
# Step 1: Build CPU backends with GCC (no ROCm preset)
# Pre-set CMAKE_HIP_COMPILER="" to prevent check_language(HIP) from
# finding a HIP compiler (it searches /opt/rocm even without PATH).
# Remove /opt/rocm from PATH to prevent find_program from finding hipcc.
RUN mkdir -p build-cpu && \
PATH=/usr/local/go/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin \
cmake -B build-cpu -DCMAKE_BUILD_TYPE=Release \
-DCMAKE_HIP_COMPILER="" \
-DCMAKE_INSTALL_PREFIX=/build/dist && \
cmake --build build-cpu --target ggml-cpu -- -l $(nproc) && \
cmake --install build-cpu --component CPU --strip && \
echo "=== CPU install ===" && \
(find /build/dist/lib/ollama -type f -o -type l 2>&1 | head -20 || echo "empty")
# Step 2: Build HIP backend with ROCm preset + gfx906 target only
# The ROCm 6 preset enables HIP language detection (enable_language(HIP))
# which ensures GPU kernels are properly compiled for gfx906.
# OLLAMA_RUNNER_DIR=rocm from the preset, so HIP goes to lib/ollama/rocm/
# Need CMAKE_PREFIX_PATH so find_package(hip) finds hip-config.cmake
# at /opt/rocm/lib/cmake/hip/hip-config.cmake.
RUN mkdir -p build-hip && \
cmake -B build-hip \
--preset 'ROCm 6' \
-DAMDGPU_TARGETS="gfx906:xnack-" \
-DCMAKE_BUILD_TYPE=Release \
-DCMAKE_PREFIX_PATH="/opt/rocm" && \
cmake --build build-hip --target ggml-hip -- -l $(nproc) && \
cmake --install build-hip --component HIP --strip && \
echo "=== HIP install ===" && \
find /build/dist/lib/ollama -type f -o -type l | head -20
# Step 3: Build Go binary (GCC for CGo linking)
ENV CGO_ENABLED=1
RUN go build -trimpath -ldflags="-X=github.com/ollama/ollama/version.Version=${OLLAMA_VERSION}" -o /build/dist/ollama .
# ---------- Runtime image ----------
FROM ubuntu:24.04
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
ca-certificates curl libstdc++6 libgomp1 libvulkan1 libopenblas0 \
&& rm -rf /var/lib/apt/lists/*
# Copy ROCm 6.1 runtime libraries
# These are needed at runtime by ggml-hip via LD_LIBRARY_PATH
COPY --from=builder /opt/rocm/lib/ /opt/rocm/lib/
COPY --from=builder /opt/rocm/share/ /opt/rocm/share/
# Copy ollama binary + all backends (CPU + HIP)
# CPU install: /build/dist/lib/ollama/libggml-*.so
# HIP install: /build/dist/lib/ollama/rocm/libggml-hip.so
COPY --from=builder /build/dist/ollama /usr/bin/ollama
COPY --from=builder /build/dist/lib/ollama/ /usr/lib/ollama/
RUN ldconfig
ENV LD_LIBRARY_PATH=/opt/rocm/lib:/usr/lib/ollama/rocm:/usr/lib/ollama
ENV HSA_OVERRIDE_GFX_VERSION=9.0.6
ENV HCC_AMDGPU_TARGET=gfx906
ENV HSA_ENABLE_SDMA=0
EXPOSE 11434
ENTRYPOINT ["/bin/ollama"]
CMD ["serve"]

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@@ -61,6 +61,7 @@
./modules/nixos/services/open_code_server.nix
./modules/nixos/services/ollama_init_custom_models.nix
./modules/nixos/services/openclaw_node.nix
./modules/nixos/security/ai-worker-restricted.nix
./users/gortium.nix
./users/ai-worker.nix
];

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;

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@@ -0,0 +1,126 @@
# AI Worker Restricted Access
This module provides SSH access for the AI worker (hermes-agent) to run docker commands on the host.
## Security Model
### 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)
- **No bind mounts**: Cannot access `/home/gortium/infra` or other host files
- **Cannot access**: Any files outside standard system paths
### Sudo Access
- **Restricted**: ai-worker has `NOPASSWD` access only to whitelisted commands
- Cannot run `nh`, `nixos-rebuild`, `nixpkgs-fmt`, or `nix` with elevated permissions
## Workflow: SSH + Restricted Docker
All docker commands must be prefixed with `sudo`:
```bash
# From Hermes container, SSH to host
ssh -i /path/to/ssh/key ai-worker@host.docker.internal
# Check container status (works)
sudo docker ps
# Restart a container (works)
sudo docker restart ollama
# Run benchmark (works - docker run is allowed)
sudo docker run --rm alpine echo "test"
# ANY of these will FAIL (not in whitelist):
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
# For ollama operations, use the HTTP API instead of docker exec:
curl http://ollama:11434/api/tags
```
## SSH Access
Connect as:
```bash
ssh ai-worker@lazyworkhorse
```
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 the whitelisted commands only (no docker exec/cp/commit)
# Verify NOT in docker group
groups ai-worker
# Should show: ai-worker (NO docker group)
```
## Troubleshooting
If docker commands fail:
```bash
# Check sudo permissions
sudo -u ai-worker sudo -l | grep docker
# Verify group membership
groups ai-worker
# Test allowed command
sudo -u ai-worker sudo docker ps
# Test blocked command (should fail)
sudo -u ai-worker sudo docker exec ollama ollama list
# Expected: "Sorry, user ai-worker is not allowed to execute"
```
If SSH connection fails:
```bash
# Check SSH key is authorized
cat /home/ai-worker/.ssh/authorized_keys
# Check SSH service
systemctl status sshd
```

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@@ -0,0 +1,24 @@
{ config, pkgs, lib, ... }:
with lib;
{
options.services.aiWorkerAccess = mkOption {
type = types.bool;
default = false;
description = "Enable AI worker SSH access with restricted sudo docker commands";
};
config = mkIf config.services.aiWorkerAccess {
# SECURITY: ai-worker is NOT added to docker group.
# Docker access is granted via sudo whitelist in users/ai-worker.nix.
# 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
};
}

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@@ -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";
};
};
}

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@@ -0,0 +1,9 @@
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View File

@@ -4,20 +4,149 @@
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
];
# No password login - SSH key only
hashedPassword = "!";
};
users.groups.ai-worker = {};
# Restricted sudo for ai-worker - security checks only
# Enable restricted AI worker SSH access for ollama benchmarking
# SECURITY: ai-worker can only:
# - SSH into host from Hermes container
# - 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 nix/nixos-rebuild/nh commands
# WORKFLOW: SSH from Hermes container, run docker commands via sudo, return and save results
services.aiWorkerAccess = true;
# 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" ];
@@ -26,7 +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" ];
@@ -39,7 +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" ];
@@ -52,21 +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
{
command = "/run/current-system/sw/bin/docker ps";
options = [ "NOPASSWD" ];
}
{
command = "/run/current-system/sw/bin/docker inspect *";
options = [ "NOPASSWD" ];
}
# Network diagnostics
# === Network diagnostics ===
{
command = "/run/current-system/sw/bin/ss -tlnp";
options = [ "NOPASSWD" ];