---
title: Arr Stack — Taiga
created: '2026-05-23'
updated: '2026-09-02'
type: tech
namespace: family
tags: [arr, taiga, infra, media, pitfalls]
related:
  - "[[tech/arr-stack-kraken]]"
---

# Arr Stack — Taiga

Secondary arr stack on Taiga (TrueNAS), added 2026-05-20.

> **STATE 2026-09-02 (end-of-session):** Стек **ПОДНЯТ И РАБОТАЕТ** ✅. `docker compose up -d` в `/mnt/RED_2TB/docker/arr` создал и запустил `prowlarr`, `radarr`, `sonarr`, `jellyfin` (все в проекте `arr`, процессы под **uid 950** — PUID/PGID=950 применён). Сеть `media_net` воссоздана (`docker network create media_net`), transmission подключён к `media_net`. **Персистентность сетей:** в `docker/transmission/docker-compose.yml` добавлена networks секция `media_net` + `transmission_default` (external) — transmission сам находится в обеих сетях при любом пересоздании.
>
> **Почему стек изначально не запускался — медиа-права были сломаны** (тот же restore-инцидент uid 921/0000): `/mnt/RED_2TB/storage/{Movies,Cartoons,Downloads,Music,series,shared}` были `d---------`/`drwx------`, owner `transmission` (uid 921). radarr/sonarr монтируют `/storage` (rw), jellyfin `:ro` — со сломанными правами не прочитали бы библиотеку. ✅ **Права медиа ИСПРАВЛЕНЫ** (2026-09-02) до `950:950 drwxrwx---`; контейнеры arr/jellyfin затем подняты и запущены. Полный контекст и команды: `family/documents/vault-sync/2026-09-02-restore-privilege-scope.md`.

> **Docker-image facts (2026-09-02):** All 5 media images **loaded locally** on TrueNAS (`docker images`): `lscr.io/linuxserver/{radarr,sonarr,jellyfin,transmission,prowlarr}:latest`. All containers now exist and run under **uid 950**. Was: transmission container existed (now running as uid 950); jellyfin/radarr/sonarr/prowlarr containers were NOT yet created — now they are (PUID/PGID=950).
> **Transmission originally ran as ROOT** (not 911/950): its compose had no `PUID`/`PGID`, so linuxserver `/init` (s6-overlay) left it root. ✅ **Fixed 2026-09-02:** `PUID=950 PGID=950` added and container force-recreated → now daemon under uid 950. It mounts `storage` → `/mnt/storage`, download-dir = `/mnt/storage/Downloads`.
> **Fix direction (approved Variant A):** set `PUID=950 PGID=950` on transmission + all arr/jellyfin compose services so every service shares uid `950` and mutually reads files; then recursively fix perms in depth. Plan + commands: `2026-09-02-restore-privilege-scope.md` §5.
>
> **PROGRESS 2026-09-02 (updated end-of-session):** Both compose files edited for PUID/PGID=950 (transmission at `/mnt/RED_2TB/docker/transmission/docker-compose.yml`, arr at `/mnt/RED_2TB/docker/arr/docker-compose.yml` incl. all 4 services). **transmission container force-recreated** from its proper folder (`cd /mnt/RED_2TB/docker/transmission && docker compose up -d --force-recreate`) and now runs its daemon as **uid 950** (was root) — env `PUID=950 PGID=950` confirmed, process under `abc`/950. Media perms in depth recursively fixed to `950:950 drwxrwx---` on all top storage folders (incl. git/nas 2nd root pass). **Git-sync on Mac now RESOLVED** — the broken NFS4 `DENY READ_DATA` ACL on ~1946 loose git objects in `obsidian-vault.git` was stripped via full **dacl replacement** (not stripacl), so `git push` from Mac works again (push `a2c7279..2b6c181`, ahead=0 behind=0). **Arr stack is UP (2026-09-02 end):** `cd /mnt/RED_2TB/docker/arr && docker compose up -d` created/started prowlarr/radarr/sonarr/jellyfin. All daemons under **uid 950**. jellyfin reads `/storage/Movies`; radarr↔transmission via `media_net` (`transmission:9091`) OK; caddy resolves transmission via `transmission_default` (Web UI). UI ports: prowlarr 9696, radarr 7878, sonarr 8989, jellyfin 8096, transmission 9091. NOTE: radarr/sonarr/jellyfin mount `/mnt/RED_2TB/storage` as `/storage` (NOT `/media` like Kraken) — radarr root-folder on Taiga differs.

## Notes from Setup (2026-05-20)

- Config and pitfalls recorded during initial Taiga arr stack deployment
- `router.py` was customized — check `/mnt/RED_2TB/docker/arr-taiga/router.py`
  for current state

## Key Differences from Kraken Stack

- Taiga = TrueNAS host (storage-focused)
- Kraken = Raspberry Pi 5 (playback-focused)
- Taiga stack handles acquisition; Kraken handles serving to Jellyfin

## Pitfalls

(Details were referenced but not captured. Update this page after next
Taiga arr maintenance session.)