backup-strategy.md now leads with the three target legs (local incus push to sdb, nuc pull over WireGuard, restic to S3 for DBs and selected trees) and carries the plakar/ks2 story in a closing History section. restic-backup.md, install.md, local-backup-cron.md and the ks2 docs describe the predecessor only as 'the first S3 implementation', with one operational note that plakar is still installed for issue #2338 reproduction. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Prod: ks4
Incus host at OVH — public-facing self-hosted services.
- Debian 13, Xeon D-1521 / 32 GiB, 2× 6 TB (OS on mdraid RAID1,
ZFS pool
dataonsda5) — setup & rebuild: install.md - SSH:
ssh -i id_rsa_claude -p 2233 julien@193.70.35.17(julienhas passwordlesssudo incus …, includingsudo incus exec …; the backup crons themselves run as root) - Instances are on a NAT bridge
incusbr0(192.168.1.0/24); public ingress via Incus proxy devices.gateway(nginx) is the sole HTTP/S entry point and fans out to the app containers. - Services: gateway, mail, nextcloud, seafile, git, freshrss, bitwarden, outline, login (SSO), wireguard, + more — full table in install.md.
- ⚠️ The ZFS
datapool is single-disk (not mirrored); durability rests on nightly cron jobs — 01:00incus copy --refreshof all instances to the localbackuppool 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: backup-strategy.md (local-backup-cron.md, incus-copy.md, restic-backup.md).
Network flows (nuc ↔ ks4)
nuc — home LAN 192.168.0.0/24 ks4 — OVH 193.70.35.17
+-----------------------------------+ +-------------------------------------+
| | | |
| host: wg-ks4 (10.8.0.20) | | [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 | | |
| | | +-> 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 |
| | | |
| 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 |
| 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 |
+-----------------------------------+ +-------------------------------------+
phones/laptops: WG peers 10.8.0.2-3 reach 192.168.1.x through the same endpoint
Both tunnels initiate from nuc (home NAT, dynamic IP) toward ks4's fixed endpoint; ks4's incus API is never exposed to the internet.