Prepare backend for frontend integration

README.md

@@ -27,7 +27,7 @@ Set secure MariaDB passwords in `.env`. Then, set at least these values in
 
 ```json
 {
-    "abbr": "drivershub",
+    "abbr": "api",
     "name": "Drivers Hub",
     "domain": "hub.example.com",
     "prefix": "/api",
@@ -39,7 +39,8 @@ Set secure MariaDB passwords in `.env`. Then, set at least these values in
     "db_name": "drivershub",
     "db_data_directory": "/var/lib/mysqlext/",
     "redis_host": "valkey",
-    "redis_port": 6379
+    "redis_port": 6379,
+    "external_plugins": ["client-config"]
 }
 ```
 
@@ -50,6 +51,8 @@ from `config_sample.json`. Restart the backend after you change
 Use the same database password in `.env` and `config/config.json`.
 Set `domain` to the public host name of the backend. Do not include a protocol or
 path.
+Set `prefix` to `/{abbr}` when you use the official frontend. The
+`client-config` plugin uses this relation to create frontend API URLs.
 
 ## Start the deployment
 
@@ -59,8 +62,9 @@ docker compose up -d
 docker compose ps
 ```
 
-By default, the API is available at `http://localhost:7777/api`. Swagger UI is
-available at `http://localhost:7777/api/doc`.
+By default, the API is available at `http://localhost:17777/api`. Swagger UI is
+available at `http://localhost:17777/api/doc`.
+The default bind address is suitable for a reverse proxy on the Docker host.
 
 ## Store persistent data