Keep OpenWebUI provider credentials synchronized

docs/INSTALLATION.md

@@ -105,7 +105,11 @@ sudo /opt/mike-ai/stack/platform/openwebui/install-models.sh
 
 Danach sind nur die vier benannten MikeAI-Presets sichtbar; die rohen
 Router-Aliase sind ausgeblendet und Medium ist die Standardauswahl. Beide
-Skripte sichern die OpenWebUI-Datenbank vor jeder Änderung.
+Skripte sichern die OpenWebUI-Datenbank vor jeder Änderung. Der Modellinstaller
+synchronisiert außerdem OpenWebUIs persistente OpenAI-kompatible Verbindung mit
+dem internen Router und dessen aktuellem Schlüssel. Das ist erforderlich, weil
+persistente Providerwerte nach einer Schlüsselrotation Vorrang vor den
+Container-Umgebungsvariablen haben.
 
 ## Werkzeug-Container
 

platform/openwebui/install-models.sh

@@ -4,6 +4,7 @@ umask 077
 
 CONTAINER=${OPENWEBUI_CONTAINER:-mike-ai-open-webui}
 VOLUME=${OPENWEBUI_VOLUME:-mike-ai_open-webui-data}
+ROUTER_KEY_FILE=${ROUTER_KEY_FILE:-/etc/mike-ai/router-api-key}
 
 die() { printf 'FEHLER: %s\n' "$*" >&2; exit 1; }
 [[ $EUID -eq 0 ]] || die "Bitte als root ausführen."
@@ -29,8 +30,17 @@ backup=$volume_path/webui.db.before-model-install-$stamp
 cp -a "$db" "$backup"
 rm -f "$volume_path/webui.db-wal" "$volume_path/webui.db-shm"
 
+# Keep Open WebUI's persistent provider connection in sync with the rotated
+# router credential. Once a database exists, Open WebUI gives these values
+# precedence over the container environment.
+if [[ -r $ROUTER_KEY_FILE ]]; then
+  export OPENWEBUI_ROUTER_API_KEY
+  OPENWEBUI_ROUTER_API_KEY=$(<"$ROUTER_KEY_FILE")
+fi
+
 python3 - "$db" "${OPENWEBUI_MODEL_OWNER_ID:-}" <<'PY'
 import json
+import os
 import sqlite3
 import sys
 import time
@@ -191,7 +201,38 @@ def upsert(model_id, base_model_id, name, model_params, meta, active=True):
         ),
     )
 
+def set_config(key, value):
+    con.execute(
+        """
+        insert into config (key,value,updated_at) values (?,?,?)
+        on conflict(key) do update set
+          value=excluded.value,
+          updated_at=excluded.updated_at
+        """,
+        (key, json.dumps(value, ensure_ascii=False), now),
+    )
+
 with con:
+    router_api_key = os.environ.get("OPENWEBUI_ROUTER_API_KEY", "")
+    if router_api_key:
+        set_config("openai.enable", True)
+        set_config("openai.api_base_urls", ["http://router:8081/v1"])
+        set_config("openai.api_keys", [router_api_key])
+        set_config(
+            "openai.api_configs",
+            {
+                "0": {
+                    "enable": True,
+                    "tags": [],
+                    "prefix_id": "",
+                    "model_ids": [],
+                    "connection_type": "external",
+                    "auth_type": "bearer",
+                    "passthrough_params": [],
+                }
+            },
+        )
+
     # Hide the raw router aliases while keeping them resolvable as bases for
     # the user-facing workspace presets.
     for raw_id in ("qwen-fast", "qwen-medium", "qwen-large", "qwen-ultra"):