The IONOS netbird VPS held two credentials in plaintext that were the last
holdouts from the homelab's sops+age secrets pattern:
- /root/turn-pass.txt (coturn long-term-credential password)
- PKCEAuthorizationFlow.ProviderConfig.ClientSecret inline in
/opt/management.json (Authentik OIDC client secret)
This commit moves both into sops-encrypted YAML in the repo and adds a render
command that recreates the VPS config files from templates + decrypted secrets:
* secrets/turn-shared-secret.yaml — encrypted `password: <coturn pwd>`
* secrets/netbird-authentik-oidc.yaml — encrypted `client_secret: <...>`
Both recipients = hubris + apps + republic-laptop (same 3 as hello.yaml).
* vps/turnserver.conf.tmpl + vps/management.json.tmpl — templates with
{{TURN_PASSWORD}} + {{AUTHENTIK_CLIENT_SECRET}} placeholders.
* bin/homelab new subcommand `render-vps-configs`:
- Decrypts both secrets locally (works on any recipient).
- Substitutes placeholders into templates.
- Diffs against current VPS state via ssh, prompts, applies atomically
(write `.new` then mv), restarts coturn + netbird-mgmt.
- --dry-run + -y flags. Hops through hubris when not running on hubris
itself, since VPS sshd is locked to hubris's pubkey.
* inventory.yaml adds the VPS as `kind: external` (new kind; reserved for
ssh-managed hosts that aren't homelab clients themselves — no age key,
no /opt/homelab-context). hosts/netbird-vps.yaml regenerated.
* SHARED_SECRETS list includes both new secrets so re-keys on enrollment
changes pick them up automatically.
After this lands + the 5-min sync propagates to hubris, run from hubris PVE
shell (or any client; hubris just skips the extra ssh hop):
homelab render-vps-configs --dry-run # see plan, no changes
homelab render-vps-configs -y # apply + restart services
Once verified working, the plaintext `/root/turn-pass.txt` should be deleted
on the VPS (the rendered /etc/turnserver.conf no longer needs it as a
reference).
Updates to four pages reflecting the combined → vanilla mgmt+signal+relay+coturn
cutover and the IONOS-3478-firewall-exception discovery:
* infrastructure/mesh.md — rewrites the ICE/STUN section to cover the new
TURN endpoint, the IONOS upstream TCP-3478 filtering (load-bearing,
undocumented before today), and the verification probe. New changelog
entry covering the migration outcome + Device Code Stage gap.
* infrastructure/vps-hardening.md — "At a glance" lists the new 6-service
docker stack + host coturn. Firewall section notes the new
`iifname ens6 tcp dport 3478 accept` rule plus the IONOS upstream
exception. New changelog entry.
* containers/124-authentik.md — replaces the "Netbird IdP integration —
DEFERRED" section with the LANDED state: Provider details (Public
client type — Confidential breaks PKCE on the dashboard SPA), the
first-time owner-promotion sqlite recipe, the missing Device Code
Stage gap + workaround (setup-keys), and a note that the old 2026-04-22
pre-work Provider/App is now obsolete and safe to delete. Updated
changelog (Phase 6 landed).
* operations/agent-enrollment.md — new "Getting onto Netbird" subsection
explaining the setup-key path (currently the only working flow until
Device Code Stage lands) and why direct OIDC from the public internet
fails (auth.hubris.network is mesh-only-reachable). Prerequisites table
row updated to point at the new section.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Initial documentation of the hubris Proxmox homelab as a cross-linked
markdown wiki. Per-node pages, cross-cutting infrastructure pages, an
investigation log, and an operations cheatsheet. Each node and topic
ends with a Changelog section so changes can be tracked in-place going
forward.
Refreshed against live state on 2026-04-28 — 14 active LXCs (109
syncthing currently stopped) + 1 VM (108 haos). Reflects post-A/B-test
state of the 2026-04-21 hubris crash-loop investigation.
