Document verified odin access path and Unraid API

Replace the assumed/unconfirmed environment notes with facts verified from
this box, and add docs/odin-access.md as the access reference.

Verified:
- Tailscale is the only path from dev to odin. dev (100.94.16.46) is a VPS
  with a public IP, not a LAN machine; odin is 100.101.253.105, and a subnet
  route puts 192.168.90.0/24 over tailscale0 at the same ~34ms RTT.
- The myunraid.net host is the canonical nginx vhost, not a cloud relay --
  DNS resolves it to the private 192.168.90.103, so traffic stays on the
  tailnet. The bare IP 404s on /graphql, and plain HTTP 302-redirects to the
  myunraid host while stripping the x-api-key header.
- GraphQL is live: unauthenticated POSTs return HTTP 200 with an
  UNAUTHENTICATED error body, so 200 must never be read as success.

Corrects unraid-docker-manager's claim that no SSL ignore is needed: TLS
verification fails from dev because ca-certificates 20250419 cannot chain
Let's Encrypt intermediate YR1. The cert is genuine and the claim likely
holds on odin itself, but curl needs -k here.

Container-polling field behaviours (UPPERCASE state, /-prefixed names,
PrefixedID ids, no isUpdateAvailable in 7.2) are carried over from
unraid-docker-manager, which is credited as the authoritative source.

No API key is present on this box; .env.unraid-api is gitignored there and
absent from the clone.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

CLAUDE.md

@@ -43,13 +43,13 @@ Copy `_template/` to the new name, fill in its README, and add one line to the r
 
 ## The environment
 
-> **⚠ Confirm the gaps marked `?` below, then delete this warning.** The infrastructure
+**odin** — the Unraid server; the single host everything self-hosted runs on. Reached from
-> facts are carried over from the FamilySync project, where they are documented and
+this box over **Tailscale** (`100.101.253.105`, LAN `192.168.90.103`).
-> verified. Only the mapping of the *name* `odin` to that host is assumed — the name
-> appears in no memory, transcript, or config on this box.
 
-**odin** — the Unraid server; the single host everything self-hosted runs on. Verified
+> **See [docs/odin-access.md](docs/odin-access.md)** for the access path, the WebGUI/API
-characteristics:
+> endpoint, TLS caveats, and the Unraid GraphQL API — all verified from this box.
+
+Verified characteristics:
 
 | Aspect | Detail |
 | --- | --- |
@@ -60,9 +60,12 @@ characteristics:
 | Auth | Authelia — OIDC/OAuth2 provider for internal apps |
 | Ingress | Pangolin/Newt tunnel — **no open inbound ports** |
 | DNS | Split-DNS on `bergerhouse.net`; private IPs resolve internally |
-| Git forge | Self-hosted Gitea/Forgejo at `git.bergerhouse.net` (user `luckberg`) |
+| Git forge | Self-hosted Gitea/Forgejo at `git.bergerhouse.net` (user `luckberg`, SSH port 222) |
 | CI | Gitea Actions with a self-hosted runner |
 | Mail / calendar | Fastmail (paid) — JMAP/CalDAV, the source of truth for calendars |
+| Remote access | Tailscale; odin `100.101.253.105`, subnet route for `192.168.90.0/24` |
+| Unraid API | GraphQL at `{myunraid.net host}:8443/graphql`, `x-api-key` auth (Unraid 7.2+) |
+| Automation | n8n on odin — drives the Docker-manager Telegram bot |
 
 Known service hostnames: `git.bergerhouse.net`, `familysync.bergerhouse.net`,
 `familysync-dev.bergerhouse.net`.
@@ -72,14 +75,26 @@ PostgreSQL, any cloud provider.
 
 ### This box vs. odin
 
-The machine this repo is edited on is `dev` — a **separate workstation**, not the server.
+The machine this repo is edited on is `dev` (Tailscale `100.94.16.46`) — a **separate
-Scripts written here usually *target* odin (over SSH, or by being deployed into a
+workstation**, and in fact a VPS with a public IP, not a machine on the home LAN. Scripts
-container/user-script on it). Never assume a script runs on the same host it was authored
+written here usually *target* odin. Never assume a script runs on the same host it was
-on: take the target as a parameter or read it from config.
+authored on: take the target as a parameter or read it from config.
 
-`?` — SSH access method to odin (no `~/.ssh/config` entry exists on this box yet), and
+Tailscale is the **only** path from `dev` to odin — if it is down, nothing below resolves.
+
+`?` — still unconfirmed: the SSH login to odin (no `~/.ssh/config` entry on this box) and
 where deployed scripts are expected to live on the Unraid host.
 
+### Sibling repos on `git.bergerhouse.net`
+
+`luckberg/` holds `scripts` (this repo), `familysync`, `unraid-docker-manager`,
+`azure-epac`, `_cargo-index`. Two are load-bearing context:
+
+- **`unraid-docker-manager`** — n8n + Telegram bot managing odin's containers. The
+  authoritative source on the Unraid GraphQL API and container polling; distilled into
+  [docs/odin-access.md](docs/odin-access.md).
+- **`familysync`** — the origin of most of the stack facts in the table above.
+
 ---
 
 ## Prior context: MemPalace

README.md

@@ -6,7 +6,8 @@ Docker Compose behind Authelia and a Pangolin/Newt tunnel).
 Each script collection lives in its own top-level folder and is fully self-contained —
 its own README, config, and dependencies. Collections never import from each other.
 
-See [CLAUDE.md](CLAUDE.md) for the environment details and repo conventions.
+See [CLAUDE.md](CLAUDE.md) for the environment details and repo conventions, and
+[docs/odin-access.md](docs/odin-access.md) for how to reach odin and drive its API.
 
 ## Collections
 

docs/odin-access.md

@@ -0,0 +1,149 @@
+# Accessing odin
+
+Reference for reaching the Unraid host (**odin**) from this workstation (`dev`) and
+driving its API. Everything here was verified from `dev` on 2026-08-15; the "Verified"
+column says how.
+
+Related repo: **`luckberg/unraid-docker-manager`** on `git.bergerhouse.net` — an n8n
+Telegram bot that manages odin's containers. It is the origin of most of the API detail
+below and is worth reading before writing anything new against the Unraid API.
+
+---
+
+## Network path: Tailscale
+
+`dev` and odin are both on the tailnet. `dev` is a **VPS** (public IP `51.222.234.162`),
+*not* a machine on the home LAN — Tailscale is the only path to odin.
+
+| Node | Tailscale IP | Notes |
+| --- | --- | --- |
+| `dev` | `100.94.16.46` | this workstation (linux) |
+| `odin` | `100.101.253.105` | the Unraid host (linux) |
+
+Other tailnet nodes seen: `duplicati`, `experience` (windows), `fedora`, `nusgwvm`,
+`salt`, `google-pixel-8-pro`.
+
+**A subnet route is advertised for the home LAN.** odin's LAN address `192.168.90.103` is
+reachable from `dev` and routes over `tailscale0`:
+
+```
+$ ip route get 192.168.90.103
+192.168.90.103 dev tailscale0 table 52 src 100.94.16.46
+```
+
+Both the tailnet IP and the LAN IP answer at ~34 ms RTT — the same path. This matters:
+the `myunraid.net` URL below looks like a cloud relay, but **DNS resolves it to the
+private `192.168.90.103`**, so traffic goes direct over Tailscale and never leaves the
+tailnet. If Tailscale is down, none of it is reachable.
+
+---
+
+## WebGUI / API endpoint
+
+```
+https://192-168-90-103.87c90a69c53e7197560c778a63f483e675130f2a.myunraid.net:8443/
+```
+
+The hostname encodes odin's LAN IP with dashes, under a per-server hash on `myunraid.net`.
+This is the **canonical vhost** — not merely a convenience alias. Use it for everything.
+
+### Why the plain LAN IP does not work
+
+Both failure modes are real and confirmed:
+
+| Attempt | Result | Verified |
+| --- | --- | --- |
+| `https://192.168.90.103:8443/graphql` | **404** from nginx | curl |
+| `http://192.168.90.103/graphql` | **302** → the `myunraid.net` URL | curl |
+| `https://<myunraid-host>:8443/graphql` | **200**, GraphQL responds | curl |
+
+nginx only serves `/graphql` on the `myunraid.net` `server_name`; the raw IP vhost returns
+404. Plain HTTP redirects to that hostname — and **the redirect strips the `x-api-key`
+header**, so a client that follows redirects authenticates as nobody. Always call the
+`myunraid.net` URL directly rather than relying on a redirect.
+
+### TLS caveat — correcting the other repo
+
+`unraid-docker-manager` states "Valid certs via myunraid.net — no SSL ignore needed."
+**That is not true from `dev`.** Verification fails here:
+
+```
+depth=1 C=US, O=Let's Encrypt, CN=YR1
+verify error:num=20:unable to get local issuer certificate
+depth=0 CN=*.87c90a69c53e7197560c778a63f483e675130f2a.myunraid.net
+```
+
+The leaf is a genuine Let's Encrypt wildcard, but the chain presents an intermediate
+(`YR1`) that this box's CA bundle (`ca-certificates 20250419`) cannot chain to a trusted
+root — either the server omits the intermediate or the bundle predates it. The cert is not
+forged; the chain is incomplete *for this client*.
+
+Practical consequence: **`curl` needs `-k` from `dev`**, and any script that talks to odin
+must either pass the insecure flag or pin/supply the issuer. n8n running *on* odin may
+well verify fine, which is likely why the other repo's claim held there. Prefer supplying
+the missing intermediate over making `-k` a permanent habit — `-k` disables verification
+entirely, which on a tailnet is a tolerable but real weakening.
+
+---
+
+## Unraid GraphQL API
+
+- **Endpoint:** `{UNRAID_HOST}/graphql`, POST, where `UNRAID_HOST` is the `myunraid.net`
+  base URL **without** the `/graphql` suffix.
+- **Auth:** `x-api-key: <key>` header.
+- **Availability:** native in Unraid 7.2+ (odin is on 7.2); 6.9–7.1 needs the Connect plugin.
+
+Unauthenticated requests return HTTP **200** with a GraphQL error body — not an HTTP 401:
+
+```json
+{"errors":[{"message":"Invalid CSRF token","extensions":{"code":"UNAUTHENTICATED",
+ "originalError":{"error":"Unauthorized","statusCode":401}}}],"data":null}
+```
+
+**Never treat HTTP 200 as success.** Always inspect `response.errors[]`.
+
+### Polling running containers
+
+```bash
+curl -sS -k -X POST "${UNRAID_HOST}/graphql" \
+  -H 'Content-Type: application/json' \
+  -H "x-api-key: ${UNRAID_API_KEY}" \
+  -d '{"query":"query { docker { containers { id names state } } }"}'
+```
+
+```json
+{"data":{"docker":{"containers":[
+  {"id":"<server_hash>:<container_hash>","names":["/n8n"],"state":"RUNNING"}
+]}}}
+```
+
+Field behaviours that bite:
+
+- `state` is **UPPERCASE** — `RUNNING`, not `running`.
+- `names` is an array and entries are **`/`-prefixed** — `/n8n`, not `n8n`.
+- `id` is a `PrefixedID`: `{server_hash}:{container_hash}`, two 64-char SHA-256 hex
+  strings joined by a colon. The server half is identical for every container on odin.
+- **`isUpdateAvailable` does not exist** in the 7.2 schema, despite appearing in that
+  repo's earlier research. Introspect before relying on any field.
+
+### API keys
+
+Not present on this box — `.env.unraid-api` is gitignored and absent from the clone. Create
+a key scoped to what the script actually needs:
+
+```bash
+unraid-api apikey --create --name "<name>" --permissions "DOCKER:UPDATE_ANY" --json
+```
+
+Or WebGUI → Settings → Management Access → API Keys. Store it in the collection's own
+`.env`, never in git.
+
+---
+
+## Gotchas carried over from `unraid-docker-manager`
+
+- **Each Bash tool call is a fresh shell.** Source the env file in the *same* command
+  chain as the request: `. .env.unraid-api; curl ...`. A separate `source` call is lost.
+- **Large API responses:** save to a temp file before parsing; piping a 400 KB body
+  straight into `python3 -c` fails silently.
+- Docker API `204 No Content` means success with an empty body.