Erich Blume
817acc5e5e
Marked last-reviewed: 2026-04-29. Fixed the storage layout table — `/config/` is an emptyDir (ephemeral), not NFS, and the watch directory is disabled. Documented the transmission-exporter sidecar that exposes Prometheus metrics on port 19091. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
54 lines
1.7 KiB
Markdown
54 lines
1.7 KiB
Markdown
---
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title: Transmission
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modified: 2026-04-29
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last-reviewed: 2026-04-29
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tags:
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- service
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- torrent
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---
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# Transmission
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BitTorrent daemon, primarily for downloading ZIM archives for [[kiwix]].
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## Quick Reference
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| Property | Value |
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|----------|-------|
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| **URL** | https://torrent.ops.eblu.me |
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| **Tailscale URL** | https://torrent.tail8d86e.ts.net |
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| **Namespace** | `torrent` |
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| **Image** | `registry.ops.eblu.me/blumeops/transmission` |
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| **Storage** | NFS PVC from [[sifaka|Sifaka]] |
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## Storage Layout
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| Path | Backing | Purpose |
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|------|---------|---------|
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| `/downloads/incomplete/` | NFS (`sifaka:/volume1/torrents`) | Active downloads |
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| `/downloads/complete/` | NFS (`sifaka:/volume1/torrents`) | Completed downloads |
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| `/config/` | `emptyDir` (ephemeral) | Transmission `settings.json`, regenerated on pod start |
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The watch directory is disabled (`watch-dir-enabled: false`); torrents are added via RPC (see Kiwix integration below).
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[[kiwix]] reads from `/downloads/complete/` to serve ZIM archives.
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## Integration with Kiwix
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The Kiwix deployment includes a torrent-sync sidecar that:
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1. Reads ZIM torrent list from ConfigMap
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2. Adds missing torrents via RPC
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3. Runs on startup and every 30 minutes
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When downloads complete, the zim-watcher CronJob detects new ZIMs and restarts Kiwix.
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## Monitoring
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A `transmission-exporter` sidecar (image `registry.ops.eblu.me/blumeops/transmission-exporter`) scrapes the local RPC and exposes Prometheus metrics on port 19091. Uptime is also covered by a blackbox probe in [[alloy|Alloy]] k8s (Services Health dashboard).
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Web UI shows: active/seeding/paused counts, speeds, disk usage.
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## Related
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- [[kiwix]] - ZIM archive consumer
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- [[sifaka|Sifaka]] - Download storage
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