feat(infra): Open Notificaties up + shared network with OpenZaak (closes #2)

Add infra/opennotificaties/docker-compose.yml (PostGIS db, redis broker,
migrate-init, API, celery worker) on a shared `cg` network with the
OpenZaak stack (renamed oz->cg), published on host :8001. Add combined
`make stack-up/stack-smoke/stack-down` targets and a runbook.

Completes S-01's acceptance: OpenZaak + Open Notificaties + Postgres come
up in compose and a health check confirms all reachable (OZ 403/302/200,
NRC 302; cross-network DNS verified). Catalogus seed landed in S-01-b.

OZ->NRC notification *delivery* wiring (NRC setup_configuration: Services +
Authorization + JWT + Kanalen + Abonnementen; OZ NotificationConfig; re-
enabling NOTIFICATIONS_DISABLED) is deferred to S-06 (Event Subscriber),
the slice that consumes events. NRC data.yaml is migrate-only until then.

Verified: `make stack-smoke` green (both platforms reachable).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Makefile

@@ -12,8 +12,6 @@ OZ_COMPOSE  := infra/openzaak/docker-compose.yml
 OZ_BASE     := http://localhost:8000
 NRC_COMPOSE := infra/opennotificaties/docker-compose.yml
 NRC_BASE    := http://localhost:8001
-KC_COMPOSE  := infra/keycloak/docker-compose.yml
-KC_BASE     := http://localhost:8180
 STACK_FILES := -f $(OZ_COMPOSE) -f $(NRC_COMPOSE)
 
 # On a rootless Podman dev box, point Docker CLI/Compose at the Podman socket —
@@ -26,7 +24,7 @@ export DOCKER_HOST := unix://$(PODMAN_SOCK)
 endif
 endif
 
-.PHONY: ci lint build unit smoke down changelog openzaak-up openzaak-smoke openzaak-seed openzaak-down stack-up stack-smoke stack-down keycloak-up keycloak-smoke keycloak-down help
+.PHONY: ci lint build unit smoke down changelog openzaak-up openzaak-smoke openzaak-seed openzaak-down stack-up stack-smoke stack-down help
 
 ## ci: run the full pipeline — lint, build, unit, smoke (mirrors Gitea Actions)
 ci: lint build unit smoke
@@ -109,21 +107,6 @@ stack-smoke: stack-up
 stack-down:
 	docker compose $(STACK_FILES) down --volumes
 
-## keycloak-up: start Keycloak with the four imported realms
-keycloak-up:
-	docker compose -f $(KC_COMPOSE) up -d
-
-## keycloak-smoke: start Keycloak, then verify each realm logs in + returns its claim
-keycloak-smoke: keycloak-up
-	@bash -c 'for i in $$(seq 1 60); do \
-	    c=$$(curl -s -o /dev/null -w "%{http_code}" $(KC_BASE)/realms/digid/.well-known/openid-configuration || true); \
-	    [ "$$c" = "200" ] && break; sleep 3; done; echo "Keycloak ready ($$c)"'
-	python3 infra/keycloak/check_realms.py
-
-## keycloak-down: stop and remove Keycloak
-keycloak-down:
-	docker compose -f $(KC_COMPOSE) down --volumes
-
 ## help: list available targets
 help:
 	@grep -E '^## ' $(MAKEFILE_LIST) | sed 's/^## //'

docs/runbooks/keycloak.md

@@ -1,37 +0,0 @@
-# Keycloak runbook
-
-Keycloak (`infra/keycloak/docker-compose.yml`) runs in dev mode with four realms
-imported at boot from `infra/keycloak/realms/`: **digid**, **eherkenning**, **eidas**,
-**medewerker**. It mocks the Dutch identity brokers so portals can do real OIDC logins
-locally. Host port **:8180**.
-
-## Quick test (`make`)
-
-```bash
-make keycloak-up      # start Keycloak + import realms (~30-60s first boot)
-make keycloak-smoke   # start + verify every realm logs in and returns its claim
-make keycloak-down    # stop + wipe
-```
-
-`make keycloak-smoke` runs `infra/keycloak/check_realms.py`, which does a password-grant
-login per realm and asserts the identifying claim:
-
-| Realm | User | Claim asserted |
-|---|---|---|
-| digid | jan-burger | `bsn` |
-| eherkenning | acme-ondernemer | `kvk` |
-| eidas | pierre-dupont | `eidas_id` |
-| medewerker | merel-behandelaar | role `behandelaar` |
-
-All test users / credentials are in [../synthetic-data.md](../synthetic-data.md).
-
-## Notes
-
-- **Admin console:** <http://localhost:8180/> — `admin` / `admin` (dev only).
-- **Client `big-portal`** is public with `standardFlowEnabled` (browser redirect login)
-  *and* `directAccessGrantsEnabled` (password grant, used by the smoke test).
-- **Dev store:** in-memory H2 via `start-dev`; realms re-import on each boot, so changes
-  made in the admin UI don't persist. Edit the realm JSONs to make durable changes.
-- **Image** pinned to `quay.io/keycloak/keycloak:26.1`.
-- Claims are injected by OIDC protocol mappers on `big-portal` (user attribute → token
-  claim); `medewerker` roles come through `realm_access.roles`.

docs/synthetic-data.md

@@ -1,35 +0,0 @@
-# Synthetic data
-
-All credentials here are **dev-only** synthetic test data — never real personal data,
-never used outside local development.
-
-## Keycloak realms (S-02)
-
-Keycloak runs at <http://localhost:8180> (admin console: **admin / admin**). Four realms
-are imported at boot from `infra/keycloak/realms/`. Each has a public OIDC client
-**`big-portal`** (standard flow + direct access grants enabled, redirect URIs `*` for dev).
-
-All test users share the password **`test123`**.
-
-| Realm | Mimics | User | Identifying claim |
-|---|---|---|---|
-| `digid` | DigiD (burgers) | `jan-burger` | `bsn` = `123456782` |
-| `eherkenning` | eHerkenning (bedrijven) | `acme-ondernemer` | `kvk` = `12345678` |
-| `eidas` | eIDAS (EU) | `pierre-dupont` | `eidas_id` = `FR/NL/AB-1234-5678` |
-| `medewerker` | Internal staff | `merel-behandelaar` | role `behandelaar` |
-| `medewerker` | Internal staff | `tom-teamlead` | roles `behandelaar`, `teamlead` |
-
-The identifying claims are injected via OIDC protocol mappers on `big-portal`
-(user-attribute → token claim); `medewerker` roles appear in `realm_access.roles`.
-
-## Get a token (for testing)
-
-```bash
-curl -s -X POST \
-  http://localhost:8180/realms/digid/protocol/openid-connect/token \
-  -d grant_type=password -d client_id=big-portal \
-  -d username=jan-burger -d password=test123 -d scope=openid | jq -r .access_token
-```
-
-Decode the JWT payload to see the `bsn` claim. `make keycloak-smoke` checks every realm
-automatically.

infra/keycloak/check_realms.py

@@ -1,60 +0,0 @@
-#!/usr/bin/env python3
-"""Smoke-check the Keycloak realms: each realm's OIDC login works (password grant)
-and returns its expected identifying claim. Stdlib only. Exits non-zero on failure.
-"""
-import base64, json, sys, urllib.error, urllib.parse, urllib.request
-
-BASE = "http://localhost:8180"
-CLIENT = "big-portal"
-PWD = "test123"
-
-# realm, user, claim ("__roles__" => check realm_access.roles), expected-contains
-CHECKS = [
-    ("digid", "jan-burger", "bsn", "123456782"),
-    ("eherkenning", "acme-ondernemer", "kvk", "12345678"),
-    ("eidas", "pierre-dupont", "eidas_id", "FR/NL"),
-    ("medewerker", "merel-behandelaar", "__roles__", "behandelaar"),
-]
-
-
-def decode(jwt):
-    p = jwt.split(".")[1]
-    p += "=" * (-len(p) % 4)
-    return json.loads(base64.urlsafe_b64decode(p))
-
-
-def grant(realm, user):
-    data = urllib.parse.urlencode({
-        "grant_type": "password", "client_id": CLIENT,
-        "username": user, "password": PWD, "scope": "openid",
-    }).encode()
-    req = urllib.request.Request(
-        f"{BASE}/realms/{realm}/protocol/openid-connect/token", data=data,
-        headers={"Content-Type": "application/x-www-form-urlencoded"})
-    with urllib.request.urlopen(req, timeout=20) as r:
-        return json.loads(r.read())
-
-
-def main():
-    ok = True
-    for realm, user, claim, expect in CHECKS:
-        try:
-            at = decode(grant(realm, user)["access_token"])
-            if claim == "__roles__":
-                val = at.get("realm_access", {}).get("roles", [])
-                good = expect in val
-            else:
-                val = at.get(claim)
-                good = val is not None and expect in str(val)
-            print(f"{realm:12} {user:18} login OK | {claim} = {val} "
-                  f"[{'OK' if good else 'UNEXPECTED'}]")
-            ok = ok and good
-        except urllib.error.HTTPError as e:
-            ok = False
-            print(f"{realm:12} {user:18} LOGIN FAILED {e.code}: {e.read()[:200]!r}")
-    print("keycloak smoke OK" if ok else "keycloak smoke FAILED")
-    sys.exit(0 if ok else 1)
-
-
-if __name__ == "__main__":
-    main()

infra/keycloak/docker-compose.yml

@@ -1,29 +0,0 @@
-# Keycloak (S-02) with four pre-seeded realms imported at boot:
-#   digid · eherkenning · eidas · medewerker
-# Dev mode, H2 in-memory store, realm JSONs imported from ./realms.
-#
-#   docker compose -f infra/keycloak/docker-compose.yml up -d
-#   curl -s -o /dev/null -w '%{http_code}\n' \
-#     http://localhost:8180/realms/digid/.well-known/openid-configuration   # -> 200
-#
-# Admin console: http://localhost:8180/  (admin / admin — dev only)
-services:
-  keycloak:
-    image: quay.io/keycloak/keycloak:26.1
-    command: ["start-dev", "--import-realm"]
-    environment:
-      KC_BOOTSTRAP_ADMIN_USERNAME: admin
-      KC_BOOTSTRAP_ADMIN_PASSWORD: admin
-      # Older var names too, harmless on 26.x:
-      KEYCLOAK_ADMIN: admin
-      KEYCLOAK_ADMIN_PASSWORD: admin
-      KC_HEALTH_ENABLED: "true"
-      KC_HTTP_ENABLED: "true"
-    ports:
-      - "8180:8080"
-    volumes:
-      - ./realms:/opt/keycloak/data/import:ro,z
-    networks: [cg]
-
-networks:
-  cg:

infra/keycloak/realms/digid-realm.json

@@ -1,43 +0,0 @@
-{
-  "realm": "digid",
-  "enabled": true,
-  "displayName": "Mock DigiD",
-  "clients": [
-    {
-      "clientId": "big-portal",
-      "enabled": true,
-      "publicClient": true,
-      "standardFlowEnabled": true,
-      "directAccessGrantsEnabled": true,
-      "redirectUris": ["*"],
-      "webOrigins": ["*"],
-      "protocolMappers": [
-        {
-          "name": "bsn",
-          "protocol": "openid-connect",
-          "protocolMapper": "oidc-usermodel-attribute-mapper",
-          "config": {
-            "user.attribute": "bsn",
-            "claim.name": "bsn",
-            "jsonType.label": "String",
-            "id.token.claim": "true",
-            "access.token.claim": "true",
-            "userinfo.token.claim": "true"
-          }
-        }
-      ]
-    }
-  ],
-  "users": [
-    {
-      "username": "jan-burger",
-      "enabled": true,
-      "firstName": "Jan",
-      "lastName": "Burger",
-      "email": "jan.burger@example.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "attributes": { "bsn": ["123456782"] }
-    }
-  ]
-}

infra/keycloak/realms/eherkenning-realm.json

@@ -1,43 +0,0 @@
-{
-  "realm": "eherkenning",
-  "enabled": true,
-  "displayName": "Mock eHerkenning",
-  "clients": [
-    {
-      "clientId": "big-portal",
-      "enabled": true,
-      "publicClient": true,
-      "standardFlowEnabled": true,
-      "directAccessGrantsEnabled": true,
-      "redirectUris": ["*"],
-      "webOrigins": ["*"],
-      "protocolMappers": [
-        {
-          "name": "kvk",
-          "protocol": "openid-connect",
-          "protocolMapper": "oidc-usermodel-attribute-mapper",
-          "config": {
-            "user.attribute": "kvk",
-            "claim.name": "kvk",
-            "jsonType.label": "String",
-            "id.token.claim": "true",
-            "access.token.claim": "true",
-            "userinfo.token.claim": "true"
-          }
-        }
-      ]
-    }
-  ],
-  "users": [
-    {
-      "username": "acme-ondernemer",
-      "enabled": true,
-      "firstName": "Anita",
-      "lastName": "Ondernemer",
-      "email": "anita@acme.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "attributes": { "kvk": ["12345678"] }
-    }
-  ]
-}

infra/keycloak/realms/eidas-realm.json

@@ -1,43 +0,0 @@
-{
-  "realm": "eidas",
-  "enabled": true,
-  "displayName": "Mock eIDAS",
-  "clients": [
-    {
-      "clientId": "big-portal",
-      "enabled": true,
-      "publicClient": true,
-      "standardFlowEnabled": true,
-      "directAccessGrantsEnabled": true,
-      "redirectUris": ["*"],
-      "webOrigins": ["*"],
-      "protocolMappers": [
-        {
-          "name": "eidas_id",
-          "protocol": "openid-connect",
-          "protocolMapper": "oidc-usermodel-attribute-mapper",
-          "config": {
-            "user.attribute": "eidas_id",
-            "claim.name": "eidas_id",
-            "jsonType.label": "String",
-            "id.token.claim": "true",
-            "access.token.claim": "true",
-            "userinfo.token.claim": "true"
-          }
-        }
-      ]
-    }
-  ],
-  "users": [
-    {
-      "username": "pierre-dupont",
-      "enabled": true,
-      "firstName": "Pierre",
-      "lastName": "Dupont",
-      "email": "pierre.dupont@example.fr",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "attributes": { "eidas_id": ["FR/NL/AB-1234-5678"] }
-    }
-  ]
-}

infra/keycloak/realms/medewerker-realm.json

@@ -1,44 +0,0 @@
-{
-  "realm": "medewerker",
-  "enabled": true,
-  "displayName": "Medewerkers",
-  "roles": {
-    "realm": [
-      { "name": "behandelaar", "description": "Behandelt registratieaanvragen" },
-      { "name": "teamlead", "description": "Teamleider behandeling" }
-    ]
-  },
-  "clients": [
-    {
-      "clientId": "big-portal",
-      "enabled": true,
-      "publicClient": true,
-      "standardFlowEnabled": true,
-      "directAccessGrantsEnabled": true,
-      "redirectUris": ["*"],
-      "webOrigins": ["*"]
-    }
-  ],
-  "users": [
-    {
-      "username": "merel-behandelaar",
-      "enabled": true,
-      "firstName": "Merel",
-      "lastName": "Behandelaar",
-      "email": "merel@big.example.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "realmRoles": ["behandelaar"]
-    },
-    {
-      "username": "tom-teamlead",
-      "enabled": true,
-      "firstName": "Tom",
-      "lastName": "Teamlead",
-      "email": "tom@big.example.nl",
-      "emailVerified": true,
-      "credentials": [{ "type": "password", "value": "test123", "temporary": false }],
-      "realmRoles": ["behandelaar", "teamlead"]
-    }
-  ]
-}