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# Stupid Simple Network Inventory

**Self-hosted network inventory and logical topology visualisation**

[Français](README.fr.md) · [Español](README.es.md)

![Python](https://img.shields.io/badge/Python-3.11-3776AB?logo=python&logoColor=white)
![FastAPI](https://img.shields.io/badge/FastAPI-009688?logo=fastapi&logoColor=white)
![Vue.js](https://img.shields.io/badge/Vue.js-3-4FC08D?logo=vue.js&logoColor=white)
![SQLite](https://img.shields.io/badge/SQLite-003B57?logo=sqlite&logoColor=white)
![Nginx](https://img.shields.io/badge/Nginx-009639?logo=nginx&logoColor=white)
![Docker](https://img.shields.io/badge/Docker-2496ED?logo=docker&logoColor=white)
[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](LICENSE)

</div>

---

![Topology view](img/tpology.png)

---

## ✨ Features

- 🗂️ **Manual inventory** — add and manage devices (18 types) with IPs, VLANs, descriptions and optional web links
- 🗺️ **Topology view** — card-based layout per network (LAN / VLAN 802.1Q), with WAN and gateway sections
- 📡 **ICMP ping sweep** — check reachability of all known hosts in one click
- 🔍 **Auto-discovery** — ping sweep + PTR DNS lookup on a subnet to import new hosts
- 🏷️ **Brand logos** — automatic detection and display of vendor logos (Proxmox, Cisco, Synology, Docker, 30+ more)
- 🔐 **Authentication** — JWT-based login with forced password change on first use
- 🌙 **Dark mode** — light / dark theme toggle
- 🌍 **i18n** — French, English, Spanish

## 🛠️ Stack

| Layer | Technology |
|-------|-----------|
| Backend | FastAPI + SQLAlchemy + SQLite (Python 3.11) |
| Frontend | Vue 3 + Vite, served by Nginx |
| Auth | JWT HS256, 24-hour expiry |
| Runtime | Docker Compose |

---

## 🚀 Quick start

```bash
# 1. Clone and enter the project
git clone https://git.raspot.in/olivier/stupid-simple-network-inventory.git
cd stupid-simple-network-inventory

# 2. Create the data directory owned by the current user
mkdir -p db_data

# 3. Configure environment (required for correct bind-mount ownership)
cp .env.example .env
# Edit .env:
#   DOCKER_UID / DOCKER_GID → output of: id -u && id -g
#   INITIAL_ADMIN_PASSWORD  → set to avoid the default admin/admin bootstrap

# 4. Build and start
docker compose --env-file .env up --build -d

# 5. Open http://localhost:8080 in your browser
```

### First login

| Case | Credentials | Behaviour |
|------|------------|-----------|
| `INITIAL_ADMIN_PASSWORD` set | `admin` / `<your password>` | Normal login |
| `INITIAL_ADMIN_PASSWORD` unset | `admin` / `admin` | Forced password change before accessing the app |

---

## 🔄 Updating

Data is stored in `./db_data/` (bind-mount), which is never touched by container rebuilds. Updating is safe:

```bash
git pull
docker compose up --build -d
```

Database migrations run automatically on startup — no manual steps required.

---

## ⚙️ Configuration

All configuration is via environment variables. See `.env.example` for the full list with descriptions.

| Variable | Default | Description |
|----------|---------|-------------|
| `SECRET_KEY` | auto-generated | JWT signing key. Set explicitly in production. |
| `INITIAL_ADMIN_PASSWORD` | _(empty)_ | Bootstrap admin password. If unset, `admin/admin` is used with forced change. |
| `ALLOWED_ORIGINS` | `*` | CORS allowed origins (comma-separated). Set to your domain in production. |
| `BIND_ADDRESS` | `0.0.0.0` | IP address to listen on. Set to the interface facing the reverse proxy. |
| `DOCKER_UID` / `DOCKER_GID` | `1000` | UID/GID for the backend process. Must match the host user owning `./db_data/`. |

```bash
cp .env.example .env
# Edit .env — at minimum set DOCKER_UID, DOCKER_GID, INITIAL_ADMIN_PASSWORD
docker compose --env-file .env up --build -d
```

---

## 🔒 Security

### Secret management

Two options depending on your security requirements.

#### Option A — Auto-generated secret (recommended for single-node)

Leave `SECRET_KEY` unset (or empty) in `.env`. On first start the backend generates a random 64-character hex key, writes it to `db_data/secret_key.txt` with permissions **0600**, and reuses it on every subsequent restart. The secret never appears in an environment variable, a compose file, or a log.

```bash
# .env — leave the line empty or remove it
SECRET_KEY=
```

The only requirement is that `db_data/` is backed up (it already contains the database).

#### Option B — Docker Compose file secret

Stores the secret in a file on the host, outside version control, and mounts it into the container. The value never appears in an environment variable.

```bash
# Generate and store the secret outside the project directory
mkdir -p ~/.secrets
python3 -c "import secrets; print(secrets.token_hex(32))" > ~/.secrets/topologie_secret_key
chmod 600 ~/.secrets/topologie_secret_key
```

Then uncomment the `secrets:` blocks in `docker-compose.yml` (see comments in that file) and remove `SECRET_KEY` from `.env`. Docker Compose merges the override automatically:

```bash
docker compose up -d
```

### Key rotation

To rotate the JWT secret (invalidates all active sessions):

```bash
# Option A — environment variable (recommended)
# Set a new SECRET_KEY in your deployment config and restart

# Option B — file rotation
docker compose stop backend
rm db_data/secret_key.txt
docker compose start backend
# All users will need to log in again
```

### HTTPS

This application does not terminate TLS. For production use, place it behind a reverse proxy that handles HTTPS.

#### Nginx

```nginx
server {
    listen 443 ssl;
    server_name inventory.example.com;

    ssl_certificate     /etc/letsencrypt/live/inventory.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/inventory.example.com/privkey.pem;

    location / {
        proxy_pass http://127.0.0.1:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}
```

#### Traefik — Docker labels

Add these labels to the `frontend` service and connect it to the network shared with Traefik:

```yaml
# docker-compose.override.yml
services:
  frontend:
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.inventory.rule=Host(`inventory.example.com`)"
      - "traefik.http.routers.inventory.entrypoints=websecure"
      - "traefik.http.routers.inventory.tls.certresolver=letsencrypt"
      - "traefik.http.services.inventory.loadbalancer.server.port=8080"
    networks:
      - internal
      - traefik_public  # network shared with your Traefik instance

networks:
  traefik_public:
    external: true
```

#### Traefik — Dynamic configuration (file provider)

If Traefik is not running in Docker (or you prefer the file provider), drop a file in your dynamic config directory:

```yaml
# /etc/traefik/dynamic/inventory.yml
http:
  routers:
    inventory:
      rule: "Host(`inventory.example.com`)"
      entryPoints:
        - websecure
      tls:
        certResolver: letsencrypt
      service: inventory-svc

  services:
    inventory-svc:
      loadBalancer:
        servers:
          - url: "http://127.0.0.1:8080"
```

Traefik picks up the file automatically — no restart required.

For local-only use, bind to loopback to prevent accidental LAN exposure:

```yaml
# docker-compose.override.yml
services:
  frontend:
    ports:
      - "127.0.0.1:8080:8080"
```

### Container hardening

| Measure | Backend | Frontend |
|---------|---------|----------|
| Non-root user | `DOCKER_UID:DOCKER_GID` (host user) | `nginx` (UID 101) |
| `cap_drop: ALL` | ✓ | ✓ |
| `cap_add: NET_RAW` | ✓ (ping) | — |
| `no-new-privileges` | — ¹ | ✓ |
| Healthcheck | ✓ | ✓ |

¹ Omitted on the backend: ping uses file capabilities (`cap_net_raw=ep`); `no-new-privileges` suppresses the file effective bit and would prevent the subprocess from acquiring `CAP_NET_RAW` in its effective set even though the parent holds it in its permitted set.

---

## 💾 Data persistence

All data is stored in `./db_data/`:

| File | Description |
|------|-------------|
| `topology.db` | SQLite database |
| `secret_key.txt` | Auto-generated JWT secret (0600 permissions) |

**Backup**: `cp -r db_data/ db_data.bak/`

**Restore**: stop the stack, replace `db_data/`, restart.

---

## 🏷️ Brand logo detection

Logo detection runs automatically against the device **name** and **description** fields (case-insensitive keyword matching). No manual configuration needed — just include a recognisable keyword in the name or description.

Logos are displayed in two places:
- **Topology view** — small inline SVGs next to the device name on each chip
- **Device list** — coloured badge(s) in the device card

Multiple logos can appear simultaneously if several keywords match.

| Category | Brand | Trigger keywords |
|----------|-------|-----------------|
| Virtualisation | Proxmox | `proxmox`, `pve` |
| Virtualisation | Docker | `docker` |
| NAS | Synology | `synology`, `dsm` |
| NAS | TrueNAS | `truenas`, `freenas` |
| Network | Ubiquiti / UniFi | `ubiquiti`, `unifi`, `usg`, `udm` |
| Network | MikroTik | `mikrotik`, `routeros` |
| Network | Cisco | `cisco` |
| Network | TP-Link | `tp-link`, `tplink` |
| Network | ASUS | `asus` |
| Network | Netgear | `netgear` |
| Network | pfSense | `pfsense` |
| Network | OPNsense | `opnsense` |
| Network | OpenWrt | `openwrt` |
| Web / proxy | Apache | `apache`, `apache2`, `httpd` |
| Web / proxy | Traefik | `traefik` |
| Database | MariaDB | `mariadb` |
| Orchestration | Kubernetes | `kubernetes`, `k8s`, `kubectl`, `k3s` |
| OS | Debian | `debian` |
| OS | Ubuntu | `ubuntu` |
| Automation | Ansible | `ansible` |
| Servers | Dell | `dell`, `idrac`, `poweredge` |
| Servers | HP | `proliant`, `ilo`, `hewlett` |
| SBC / DIY | Raspberry Pi | `raspberry`, `rpi`, `raspi` |
| SBC / DIY | Arduino | `arduino` |
| Desktop | KDE / Plasma | `kde`, `plasma` |
| Tools | Excalidraw | `excalidraw` |
| Self-hosted | Nextcloud | `nextcloud` |
| Self-hosted | Paperless-NGX | `paperless`, `paperless-ngx` |
| Self-hosted | Uptime Kuma | `uptime-kuma`, `uptime kuma` |
| Self-hosted | MkDocs | `mkdocs` |
| Media / home automation | Jellyfin | `jellyfin` |
| Media / home automation | Home Assistant | `homeassistant`, `home assistant`, `hassio` |
| Media / home automation | Philips Hue | `philips hue`, `hue bridge` |
| Media / home automation | Xiaomi | `xiaomi`, `mi home`, `yeelight` |

---

## 🧑‍💻 Development

### Backend tests

```bash
cd backend
pip install -r requirements.txt -r requirements-test.txt
pytest tests/ -v
```

### Local dev (without Docker)

```bash
# Backend
cd backend
pip install -r requirements.txt
uvicorn main:app --reload

# Frontend (separate terminal)
cd frontend
npm install
npm run dev   # Vite dev server on :5173, proxies /api/ to :8000
```

---

## 🏗️ Architecture

See [`docs/architecture.md`](docs/architecture.md) for the detailed request flow, Docker setup, and authentication model.

---

## 🤖 Built with AI assistance

This application was developed entirely with the help of AI coding assistants:

- **[Claude Code](https://claude.ai/code)** (Anthropic) — used throughout the project for architecture design, backend API (FastAPI, SQLAlchemy, authentication, ICMP discovery), frontend components (Vue 3, CSS topology layout, i18n, dark mode), Docker & Nginx configuration, and documentation.
- **[Codex](https://openai.com/codex)** (OpenAI) — also used during development for code generation and suggestions across the entire codebase.

---

## 📄 License

This project is licensed under the [GNU General Public License v3.0](LICENSE).

You are free to use, modify and distribute this software under the terms of the GPL v3. Any derivative work must be distributed under the same license.