The main Ingress is websecure-only per the forgejo pattern, so port 80 was
unrouted for this host and plain http:// returned Traefik's default 404. Adds a
redirectScheme Middleware plus a web-entrypoint Ingress, following the
reuse-surface pattern.
Pins router.priority: "1" on the redirect. cert-manager solves HTTP-01 by
creating a solver Ingress on this same host and entrypoint, so a catch-all "/"
redirect competes with it directly. Traefik would normally settle that by rule
length, but reuse-surface's 2026-07-07 report is exactly a case of a specific
rule losing to a catch-all when precedence was left implicit -- and here the
symptom would not be a visible 404 but a silently failed renewal ~60 days out,
surfacing as an expired certificate on the origin backing an OIDC redirect URI.
Verified by probe twice: with a solver-shaped Ingress present the challenge path
returns 200 (solver wins) while "/" still redirects; with it absent the redirect
correctly catches both. Probe was throwaway and is not committed; the runbook
carries the table to recreate it.
GET returns 301 and HEAD 308. That split is Traefik's own behaviour on this
cluster, not a defect here -- reuse.coulomb.social does the same.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EJbh7o7UWF4tQ5jxygnNGu
Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 2072522@bnt-lap001
Assistant-Session: 46173adf-7302-4ede-99d6-963b61359928
