111 lines
6.3 KiB
Markdown
111 lines
6.3 KiB
Markdown
# Personal infrastructure notes
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**Start here**:
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- [backup-strategy.md](backup-strategy.md) — what is
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backed up, by which tool, on what schedule, and how to restore.
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- [new-container.md](new-container.md) — conventions for adding a
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service to ks4 (and getting it backed up automatically).
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**Tech notes**
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- [`nuc/`](nuc/) — home lab on `nuc` (see below)
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- [`ks4/`](ks4/) — prod server `ks4` at OVH (see below)
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- [`ks2/`](ks2/) — legacy backup server being [decommissioned](ks2/plan.md)
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- [`archer-c7/`](archer-c7/) — home router (TP-Link Archer C7 v5 running on OpenWrt)
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## Homelab: nuc
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Incus host on the LAN.
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- Debian 13, Intel Alder Lake-N (iGPU `i915`, shared by both Jellyfin containers) —
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bare-metal reinstall: [nuc/nuc-install.md](nuc/nuc-install.md)
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- Instances are bridged onto the LAN (192.168.0.0/24)
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- USB 4 TB WD Red: ZFS pool `usb4t` — `usb4t/backup` → `/backup`
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(incus exports, `nuc/` + `ks4/` subdatasets, 1 TB quota) and
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`usb4t/media` → `/srv/media` (media library, shared into containers
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via `shift=true` disk devices; works because ZFS ≥ 2.2 supports
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idmapped mounts)
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- Backups: all local instances replicated to the USB pool
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(`/root/scripts/incus-copy.sh -p backup -s nucbackup`; replicas
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stopped, autostart off) — see
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[nuc/nuc-install.md](nuc/nuc-install.md); ks4 replicas pulled into
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pool `ks4backup` — see [ks4/incus-copy.md](ks4/incus-copy.md)
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### Instances
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| Name | IP | Doc | Features |
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|---|---|---|---|
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| [jellyfin-server](nuc/jellyfin-server.md) | 192.168.0.5 | ✅ | unprivileged, autostart; iGPU render node (`gpu` device, render gid) for QSV/VAAPI transcoding; `/srv/media` disk device (`shift=true`); proxy device → host :8096 |
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| [jellyfin-client](nuc/jellyfin-client.md) | 192.168.0.6 | ✅ | **privileged**, autostart; full iGPU (`gpu` device, gid 44) → HDMI kiosk (cage + Jellyfin Media Player); custom `raw.lxc` (bind `/dev/snd`, `/dev/input`, host `/run/udev`); Pioneer USB audio as ALSA default; FR keymap; go-librespot Spotify Connect ("Pioneer A-70") |
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| [transmission-bt](nuc/transmission-bt.md) | 192.168.0.7 | ✅ | unprivileged, autostart; always-on WireGuard full tunnel → ks4 (egress = 193.70.35.17, kill switch: no default route); `/srv/media` disk device (`shift=true`), downloads to `/media/downloads`; web UI :9091 (LAN only) |
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| blocky | 192.168.0.254 | — | unprivileged, autostart; DNS ad-blocker |
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| privoxy | 192.168.0.11 | — | unprivileged, autostart; filtering HTTP proxy |
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| homeassistant | (stopped) | — | **virtual machine**, 50 GiB root disk on pool `data` |
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## Prod: ks4
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Incus host at OVH — public-facing self-hosted services.
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- Debian 13, Xeon D-1521 / 32 GiB, 2× 6 TB (OS on mdraid RAID1,
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ZFS pool `data` on `sda5`) — setup & rebuild:
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[ks4/install.md](ks4/install.md)
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- SSH: `ssh -i id_rsa_claude -p 2233 julien@193.70.35.17`
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(`julien` has passwordless `sudo incus …`)
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- Instances are on a NAT bridge `incusbr0` (192.168.1.0/24); public
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ingress via Incus proxy devices. `gateway` (nginx) is the sole HTTP/S
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entry point and fans out to the app containers.
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- Services: gateway, mail, nextcloud, seafile, git, freshrss, bitwarden,
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outline, login (SSO), wireguard, + more — full table in
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[ks4/install.md](ks4/install.md).
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- ⚠️ The ZFS `data` pool is single-disk (not mirrored); durability
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rests on nightly cron jobs — 01:00 `incus copy --refresh` of all
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instances to the local `backup` pool on sdb5, then the instance leg
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to S3; 05:00 restic (DB dumps + data trees) to S3; nuc pulls the
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replicas over WireGuard. Full picture and restore procedures:
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**[backup-strategy.md](backup-strategy.md)**
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([ks4/local-backup-cron.md](ks4/local-backup-cron.md),
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[ks4/incus-copy.md](ks4/incus-copy.md),
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[ks4/restic-backup.md](ks4/restic-backup.md)).
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## Network flows
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```
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nuc — home LAN 192.168.0.0/24 ks4 — OVH 193.70.35.17
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+-----------------------------------+ +-------------------------------------+
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| | | |
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| host: wg-ks4 (10.8.0.20) | | [wireguard] 192.168.1.18 |
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| incus remote "ks4" ------+--WG-->| wg0 10.8.0.1/24, udp 51845 |
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| pull ks4:* -> pool ks4backup | udp | | masquerade -> eth0 |
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| on usb4t [pending FTTH seed] | 51845 | | |
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| | | +-> incus API 192.168.1.1:8443 |
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| [transmission-bt] wg0 (10.8.0.21) | | | (ufw: only from .18) |
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| full tunnel 0.0.0.0/0 ------+--WG-->| | |
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| kill switch: no default route | udp | +-> WAN egress: torrents + |
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| downloads -> /srv/media | 51845 | apt of transmission-bt |
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| (usb4t/media, read by jellyfin) | | exit as 193.70.35.17 |
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| | | |
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| 03:00 instance snapshots | | 03:00 instance snapshots |
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| 03:30 incus-copy: all instances | | 01:00 incus-copy: all instances |
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| -> project backup, pool | | -> project backup, zpool sdb5 |
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| nucbackup (usb4t/backup/nuc) | | then restic instance leg -> S3 |
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| 05:00 pull ks4:* -> ks4backup | | 05:00 restic: DB dumps + data |
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| [pending FTTH] | | trees -> S3 (restic-data) |
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| 05:30 apt upgrade all containers | | Sun 14:00 restic maintenance |
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+-----------------------------------+ +-------------------------------------+
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phones/laptops: WG peers 10.8.0.2-3 reach 192.168.1.x through the same endpoint
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```
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Both tunnels initiate **from** nuc (home NAT, dynamic IP) toward ks4's
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fixed endpoint; ks4's incus API is never exposed to the internet.
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### Conventions
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- One markdown file per topic in the correct subdir, containing the full
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implementation notes, configuration, and troubleshooting notes.
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- Containers are built from Debian/Ubuntu images and configured
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exclusively through `incus exec`/`incus config` so the doc is the
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single source of truth — rebuilding = re-running the script.
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- Adding a service to ks4: follow
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[new-container.md](new-container.md) (no Docker in containers —
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incus runs OCI images natively and `incus-compose` handles stacks;
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data paths go into `scripts/restic-paths`).
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