Christoph Gasser
9fc3e97546
- Yodeck API poller (every 10 min, paginated, 310 players) - SQLite persistence (players + activity logs) - SNMP v2c agent via net-snmp pass_persist - Zabbix API auto host creation/update (6.0+) - Flask web dashboard with live player status and log - Docker deployment with persistent volume - dev_server.py for local testing without Docker Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
73 lines
3.1 KiB
Markdown
73 lines
3.1 KiB
Markdown
# CLAUDE.md
|
|
|
|
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
|
|
|
|
## What this project does
|
|
|
|
Yodmon is a bridge between the **Yodeck** digital signage API and **Zabbix** monitoring. It polls the Yodeck API every 10 minutes, stores player state in SQLite, exposes the data via SNMP v2c (for Zabbix to poll every minute), auto-creates/updates Zabbix hosts, and provides a web dashboard.
|
|
|
|
## Running locally (dev)
|
|
|
|
```bash
|
|
pip install flask requests apscheduler
|
|
python dev_server.py # web UI at http://localhost:8080
|
|
python snmp_test.py # print OID tree to verify SNMP data
|
|
python snmp_test.py --filter <name_or_id>
|
|
```
|
|
|
|
`dev_server.py` sets `DB_PATH` to `./data/yodmon.db` and skips SNMP (Linux/Docker only).
|
|
|
|
## Running in Docker
|
|
|
|
```bash
|
|
docker compose up -d # SNMP on :161/udp, web UI on :8080
|
|
```
|
|
|
|
Before starting, set `APP_HOST` in `docker-compose.yml` to the host IP reachable by Zabbix, and optionally fill in `ZABBIX_URL` / `ZABBIX_PASSWORD`.
|
|
|
|
## Configuration
|
|
|
|
All settings come from environment variables (see `app/config.py`). Key ones:
|
|
|
|
| Variable | Default | Purpose |
|
|
|---|---|---|
|
|
| `YODECK_API_TOKEN` | — | `Token yodeck:<secret>` format |
|
|
| `APP_HOST` | `127.0.0.1` | IP Zabbix uses to reach this app's SNMP agent |
|
|
| `ENTERPRISE_OID` | `.1.3.6.1.4.1.99999` | Root OID for all player data |
|
|
| `SNMP_COMMUNITY` | `public` | SNMPv2c community string |
|
|
| `ZABBIX_URL` | `""` | Leave empty to disable Zabbix auto-sync |
|
|
| `DB_PATH` | `/data/yodmon.db` | SQLite file path |
|
|
|
|
## Architecture
|
|
|
|
```
|
|
Yodeck API (every 10 min)
|
|
└── app/scheduler.py → app/yodeck.py fetches all screens (paginated)
|
|
→ app/database.py upserts players + writes logs
|
|
→ app/zabbix.py creates/updates Zabbix hosts via JSON-RPC API
|
|
|
|
Zabbix SNMP poll (every 1 min)
|
|
└── snmpd (net-snmp) → snmp/pass_persist.py reads SQLite, serves OIDs over stdin/stdout
|
|
|
|
Web UI
|
|
└── app/web.py (Flask) → templates/index.html shows player table + activity log
|
|
```
|
|
|
|
**SNMP OID structure** — `ENTERPRISE_OID.1.1.<column>.<yodeck_id>`:
|
|
- col 1 `STRING` hostname (`yodeck#<id>`)
|
|
- col 2 `STRING` display name
|
|
- col 3 `INTEGER` online (0/1)
|
|
- col 4 `STRING` last_seen (ISO-8601)
|
|
- col 5 `INTEGER` updating (0/1)
|
|
- col 6 `INTEGER` registered (0/1)
|
|
|
|
The Yodeck ID is used directly as the SNMP table index, so OIDs are stable and predictable (e.g. `.1.3.6.1.4.1.99999.1.1.3.54239` = online status of player 54239).
|
|
|
|
**Database** — two tables in `yodmon.db`:
|
|
- `players` — one row per Yodeck player, upserted on each poll
|
|
- `logs` — append-only activity log; event types: `yodeck_fetch`, `zabbix_sync`, `snmp_transfer`, `error`
|
|
|
|
**Docker entrypoint** (`entrypoint.sh`) templates `/etc/snmp/snmpd.conf` from env vars at startup, then starts `snmpd` in the background before handing off to `python main.py`.
|
|
|
|
**Zabbix integration** (`app/zabbix.py`) targets Zabbix 6.0+ API (`item type 20` = SNMP agent). Set `ZABBIX_URL` to enable; the sync runs after every successful Yodeck poll.
|