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spike(R-6): LAN service discovery from the guest — SSDP/WSD/mDNS/SMB matrix

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Verdict: appliance guest is LAN-bridged; multicast discovery works only in the
guest netns (guest-direct or docker --network host) — default bridge is deaf to
LAN multicast. Real samba+wsdd on host-net: Windows 11 ProbeMatch + 445 + SMB
round-trip PASS; SSDP MediaServer:1 reaches LAN clients. R-7 => host-network
LAN-bound; R-8 Jellyfin-DLNA plausible if host-network. ROADMAP R-6 -> spiked,
R-7/R-8 unblocked. S4.4 Explorer render pending human.
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authentik Default Admin
2026-07-18 10:38:46 +02:00
parent 9e13eadf00
commit 900d3041fa
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| ID | Item | Size | Status | Notes |
|----|------|------|--------|-------|
| R-5 | Hub: offsite storage visibility — RESTIC box aggregate (v0.64.0) + PBS DR datastore (v0.65.0), each with fill + operator alert; Offsite tabs + dual dashboard gauges | M | **SHIPPED (hub v0.64.0 + v0.65.0 + tenantsync v1.2.0, 2026-07-17)** | Restic: `monitor.OffsiteBoxChecker` (throttled Hetzner GET; fill 80/90% + oversub 2.0×; scope `"pool-box"`). PBS DR (v0.65.0, Option A): read-only `usage` op on the ep0 `felhom-tenantsync` forced command (`df`, no mutation) → `monitor.PBSDRBoxChecker` (fill 80/90%, states ok/unavailable/degraded, scope `"pbsdr-box"`); `/offsite` Restic/PBS-DR tabs + two gauges; hub deploy ⟂ ep0 update (graceful "n/a"). **Both data pipelines PROVEN-LIVE** (restic `0.2% full`; PBS `19.1% full, 7.1 GB of 37.2 GB` after ep0 → v1.2.0). Thresholds pending Viktor (named keys; separate restic/PBS pairs). OPEN: UI render unit-only (password-gated), alert emails unit + red-proof only (both nominal). See hub v0.64.0 + v0.65.0 REPORTs |
| R-6 | **Spike: LAN service discovery from the guest** — SSDP multicast (UDP 1900, DLNA), WSD (Windows discovery), mDNS; host-network vs macvlan; is the customer LXC LAN-bridged in appliance deployments? | M | idea | Shared prerequisite for R-7 + R-8. Spike-first: the traps are networking, not Samba/DLNA |
| R-7 | SMB **server** share (gated on R-6): samba + wsdd, LAN-only binding (never tunnel), user model (single household user first), which roots are shared (dedicated `shares/` vs app userdata — every SMB-writable path needs a backup class), uid-1000 convention, paperless consume flow | L | idea | Flips map row E/MISSING. Alpha-relevant: "my box is a NAS" is a core household expectation |
| R-8 | DLNA (gated on R-6): validate Jellyfin's built-in DLNA server first; only add minidlna to the catalog if Jellyfin-DLNA fails | S | idea | Don't add catalog weight before proving the cheap path |
| R-6 | **Spike: LAN service discovery from the guest** — SSDP multicast (UDP 1900, DLNA), WSD (Windows discovery), mDNS; host-network vs macvlan; is the customer LXC LAN-bridged in appliance deployments? | M | **spiked (2026-07-18)** | **VERDICT: appliance guest IS LAN-bridged (own DHCP lease on the household /24); multicast discovery works ONLY in the guest netns — guest-direct or Docker `--network host` (SSDP/mDNS/WSD all PASS both ways); the default docker bridge is categorically DEAF to LAN multicast (WSD/mDNS RX FAIL, unicast-publish PASS). Real samba+wsdd on host-net → Windows 11 ProbeMatch + 445 + authenticated SMB round-trip all PASS; real SSDP `MediaServer:1` advert reaches both LAN clients. → R-7 SMB stack MUST be host-network LAN-bound; R-8 Jellyfin-DLNA plausible if host-network. Caveat: `vmbr0 multicast_snooping=1` worked only because the household router is a live querier — customer LANs w/ snooping+no-querier, and Peti's BYO bridge, are UNTESTED gaps.** Doc: `audits/SPIKE-lan-discovery-2026-07-18.md`. Open sub-leg: S4.4 Explorer render (human, pending Viktor) |
| R-7 | SMB **server** share (**gate input now exists — R-6 spiked 2026-07-18: host-network, LAN-bound**): samba + wsdd, LAN-only binding (never tunnel), user model (single household user first), which roots are shared (dedicated `shares/` vs app userdata — every SMB-writable path needs a backup class), uid-1000 convention, paperless consume flow | L | idea (unblocked) | Flips map row E/MISSING. Alpha-relevant: "my box is a NAS" is a core household expectation. **R-6 settled the transport: `network_mode: host`; carry the port-collision + snooping/querier caveats from the spike into the spec** |
| R-8 | DLNA (**gate input now exists — R-6 spiked 2026-07-18: SSDP reaches LAN clients from host-net**): validate Jellyfin's built-in DLNA server first; only add minidlna to the catalog if Jellyfin-DLNA fails | S | idea (unblocked) | Don't add catalog weight before proving the cheap path. **R-6 confirmed the cheap path is physically viable — Jellyfin DLNA must run host-network (same multicast constraint as R-7)** |
| R-9 | Uninstaller trio (from 07-15 Peti session): cluster-aware `felhom_guests` guard (node-local `pct list` deletes cluster-wide pveum objects); saferemove detection + time estimate + opt-in `--quick-remove` (never mutate `storage.cfg`); smarter `restore_storage` default for BYO clusters (shared storage, not local-lvm) | M | idea | Second item's rejected alternative (temp-disable-and-restore) stays rejected — crash window silently downgrades cluster wipe policy |
| R-10 | T-6E-1: DB-dump dir-fsync asymmetry (LOW, confirmed in 6E) | XS | idea | One-line hardening; batch with the next controller task |
| R-11 | Tester-facing one-pager: what the box does, known limitations, how to report (channel decision: Messenger group?) | S | idea | Pairs with R-3 |