docs(portals): ADR-0034 — Caddy serves the portals (refs #166)

Records the decision, the directive-order footgun that shapes the Caddyfiles, and
the measured cost (the images grew 75.7 MB → 90.6 MB). Also updates the three
frontend-decisions entries and the two other docs that named nginx.
This commit is contained in:
not
2026-09-04 17:25:29 +02:00
parent 162e495f29
commit 0fe4813388
4 changed files with 114 additions and 9 deletions
+8 -6
View File
@@ -77,11 +77,13 @@ with the submit form (S-08c, #67); any deviation from NL DS will be recorded her
## Serving + e2e (S-08d, #68)
- **Served by nginx, same-origin as the BFF.** The compose `self-service` image serves the built app
- **Served by Caddy, same-origin as the BFF.** The compose `self-service` image serves the built app
and **reverse-proxies** `/self-service/*` + `/openbaar/*` to the `bff` service. Because the
api-client uses **relative URLs**, the browser calls the app's own origin → nginx forwards to the
BFF: **no CORS**, and the DigiD token (same-origin) is attached by the interceptor. nginx resolves
the BFF at request time (a `resolver` + variable `proxy_pass`) so it starts before the BFF is up.
api-client uses **relative URLs**, the browser calls the app's own origin → Caddy forwards to the
BFF: **no CORS**, and the DigiD token (same-origin) is attached by the interceptor. Caddy dials
the BFF per request through the system resolver, so it starts before the BFF is up, picks up its
restarts, and resolves the bare `bff` name on every engine — compose, podman and Kubernetes
(ADR-0034; the `Caddyfile` sits next to each app's `Dockerfile`).
- **Runtime config.** The app fetches `/config.json` before bootstrap (`main.ts`); `appConfig` is a
factory. The dev default (`public/config.json`) points at `localhost:8180`; the Docker image bakes
the compose value (`keycloak:8080`). One build, per-environment OIDC authority.
@@ -110,7 +112,7 @@ with the submit form (S-08c, #67); any deviation from NL DS will be recorded her
`angular-auth-oidc-client`, no interceptor, and no `config.json` — `main.ts` bootstraps `appConfig`
directly with just `provideHttpClient` + `provideRouter`. This is the deliberate contrast to
self-service and keeps the app trivially cacheable/CDN-able.
- **Same-origin via nginx, like self-service.** The compose `openbaar` image serves the built app and
- **Same-origin via Caddy, like self-service.** The compose `openbaar` image serves the built app and
reverse-proxies `/openbaar` to the BFF; the api-client's relative calls stay same-origin (no CORS).
Served on `:8141`, health-checked over IPv4 (`127.0.0.1`), no Keycloak dependency.
- **Public-safe by construction.** The portal only ever sees the BFF's `OpenbaarProjection.PublicView`
@@ -138,7 +140,7 @@ frontend work is the medewerker realm auth and the werkbak/decide page. Wiring r
**BFF remains the security boundary** (`behandelaar` policy, 401/403 on `/behandel/*`, ADR-0013);
the frontend role signal is for display/UX, and the werkbak page surfaces a load failure (e.g. a
403 for a non-behandelaar) rather than swallowing it.
- **Same-origin via nginx, like the other portals.** The compose `behandel` image serves the built
- **Same-origin via Caddy, like the other portals.** The compose `behandel` image serves the built
app and reverse-proxies `/behandel` to the BFF (relative calls, no CORS). Served on `:8142`,
health-checked over IPv4 (`127.0.0.1`), depends on Keycloak for the medewerker realm.
- **Werkbak = decide-and-refresh.** `WerkbakPage` loads `GET /behandel/werkbak` on open and renders a