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docs: follow the storage move from nuc/USB to nas/SATA

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backup-strategy (the entry point) still described nuc pulling the ks4
replicas: the leg, its WireGuard peer and the target pool now live on
nas with the 4 TB on direct SATA. Also: ks4 README flow chart redrawn
for the new topology, incus-copy leg 2 retargeted, usb4t-dropouts
marked RESOLVED (kept for the diagnosis method and the alerting gap),
and ks2/plan records that the interim push was deliberately not
re-enabled.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Julien Lutran
2026-08-31 09:32:29 +02:00
co-authored by Claude Fable 5
parent f46726b6ca
commit ef88ef9342
5 changed files with 59 additions and 37 deletions
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ks4/README.md
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@@ -21,40 +21,43 @@ Incus host at OVH — public-facing self-hosted services.
- ⚠️ The ZFS `data` pool is single-disk (not mirrored); durability
rests on nightly cron jobs — 01:00 `incus copy --refresh` of all
instances to the local `backup` pool on sdb5, then the instance leg
to S3; 05:00 restic (DB dumps + data trees) to S3; nuc pulls the
replicas over WireGuard. Full picture and restore procedures:
to S3; 05:00 restic (DB dumps + data trees) to S3; **nas** pulls the
replicas over WireGuard (after FTTH). Full picture and restore procedures:
**[backup-strategy.md](../backup-strategy.md)**
([local-backup-cron.md](local-backup-cron.md),
[incus-copy.md](incus-copy.md),
[restic-backup.md](restic-backup.md)).
## Network flows (nuc ↔ ks4)
## Network flows (home ↔ ks4)
```
nuc — home LAN 192.168.0.0/24 ks4 — OVH 193.70.35.17
nas — home LAN 192.168.0.4 ks4 — OVH 193.70.35.17
+-----------------------------------+ +-------------------------------------+
| | | |
| host: wg-ks4 (10.8.0.20) | | [wireguard] 192.168.1.18 |
| host: wg-ks4 (10.8.0.22) | | [wireguard] 192.168.1.18 |
| incus remote "ks4" ------+--WG-->| wg0 10.8.0.1/24, udp 51845 |
| pull ks4:* -> pool ks4backup | udp | | masquerade -> eth0 |
| on usb4t [pending FTTH seed] | 51845 | | |
| on tank (SATA) [pending FTTH] | 51845 | | |
| | | +-> incus API 192.168.1.1:8443 |
| [transmission-bt] wg0 (10.8.0.21) | | | (ufw: only from .18) |
| full tunnel 0.0.0.0/0 ------+--WG-->| | |
| kill switch: no default route | udp | +-> WAN egress: torrents + |
| downloads -> /srv/media | 51845 | apt of transmission-bt |
| (usb4t/media, read by jellyfin) | | exit as 193.70.35.17 |
| downloads -> /export/media | 51845 | apt of transmission-bt |
| (NFS-exported to nuc) | | exit as 193.70.35.17 |
| | | |
| 03:00 instance snapshots | | 03:00 instance snapshots |
| 03:30 incus-copy: all instances | | 01:00 incus-copy: all instances |
| -> project backup, pool | | -> project backup, zpool sdb5 |
| nucbackup (usb4t/backup/nuc) | | then restic instance leg -> S3 |
| 03:30 nuc pushes its instances | | 03:00 instance snapshots |
| -> nucbackup on tank | | 01:00 incus-copy: all instances |
| 04:00 nas replicates its own | | -> project backup, zpool sdb5 |
| -> nasbackup on tank | | |
| 05:00 pull ks4:* -> ks4backup | | 05:00 restic: DB dumps + data |
| [pending FTTH] | | trees -> S3 (restic-data) |
| 05:30 apt upgrade all containers | | Sun 14:00 restic maintenance |
| | | Sun 14:00 restic maintenance |
+-----------------------------------+ +-------------------------------------+
phones/laptops: WG peers 10.8.0.2-3 reach 192.168.1.x through the same endpoint
nuc (on-demand media box) mounts /export/media from nas over NFSv4
```
Both tunnels initiate **from** nuc (home NAT, dynamic IP) toward ks4's
Both tunnels initiate **from home** (NAT, dynamic IP) toward ks4's
fixed endpoint; ks4's incus API is never exposed to the internet.
The pull leg and its tunnel moved from nuc to nas on 2026-08-30
([nas/README.md](../nas/README.md)).