Add Kopia backup stack with Backblaze B2 offsite target.

Protects /config, selective labdata, and nightly DB dumps; documents homelab improvement plan briefs.
2026-06-10 21:21:34 -05:00
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+# TB-001 — Backup stack
+
+**Status:** in progress — stack drafted, needs B2 + Portainer deploy  
+**Your call:** **Do it**
+
+---
+
+## Talk first
+
+> **Stop.** Don't read Reference until we've talked.
+> In chat, say **"let's do TB-001"** or **"backup stack"**.
+
+**In one sentence:** Set up automatic nightly backups of configs and databases, with a copy off the server.
+
+**Why it came up:** Right now nothing backs up /config or your databases — ZFS snapshots don't help if the whole machine dies.
+
+### Questions
+
+1. Does losing valhalla overnight scare you, or is 'I'll deal with it' okay for now?
+2. Do you already have offsite storage (Backblaze, Wasabi, another machine)?
+3. Kopia (has a UI) vs Restic (simpler CLI) — want a recommendation or don't care?
+
+### Your options
+
+| Option | Meaning |
+|--------|---------|
+| **Do it** | We're doing this — I'll implement or walk you through it |
+| **Later** | Keep on the list, not now |
+| **Drop** | Remove from plan — totally fine |
+| **Tweak** | Change scope; tell me how |
+
+### What we decided
+
+| | |
+|---|---|
+| **Decision** | Do it |
+| **Notes** | Kopia + B2 TBD. `/config` + dumps (RomM DB). labdata: gitea, minio, romhacks, romm/assets (saves). **Skip:** entire `/storage1/Emulation` (legacy), romm/resources (art), registry, incoming. See `SCOPE.md`. |
+| **Date** | 2026-06-10 |
+
+---
+
+<details>
+<summary>Reference (only open if we're doing it)</summary>
+
+### Stack / files
+
+`backup` new stack
+
+### If we do it — rough steps
+
+1. Pick Kopia or Restic
+2. New stacks/backup/ with nightly schedule + ntfy on failure
+3. Script dumps for all Postgres/MariaDB/CouchDB
+4. One restore test so we know it works
+
+### Done when
+
+- [ ] Nightly backup runs without you
+- [ ] At least one restore tested
+- [ ] Failures ping ntfy
+
+</details>