Document what we learned doing the real NetBird+Traefik migration:
- Keycloak realm/client names are operator-chosen; the realm-export.json's
literal "colectivo-web" / "colectivo" values are illustrative, not required.
- Legacy Keycloak /auth/ base path: PUBLIC_KEYCLOAK_URL must include the
suffix when the deployment serves realms under /auth/realms/... (hit this
on auth.fosil.eu). Verify with the discovery URL returning 200.
- NetBird's installer deploys Traefik with idleTimeout=0 (unlimited) by
default — verify instead of prescribing 3600s.
- Runbook: --no-cache fixes the intermittent vite SSR "transforming..."
hang that surfaces as a PostHog shutdown timeout.
- Runbook: any PUBLIC_* change needs an app rebuild (build args); secret
changes only need `docker compose restart auth`.
- Runbook: TRUNCATE recipe for wiping all app + auth data while keeping
schema + migration tracking intact.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Oier Bravo Urtasun
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