env('MQTT_WS_URL', 'ws://localhost:9001'), // Static per-role Mosquitto credentials (first-pass ACL model — see // docker/mosquitto/acl.conf for the documented per-user-isolation // limitation this implies). 'role_credentials' => [ 'admin' => [ 'username' => env('MQTT_ROLE_ADMIN_USERNAME'), 'password' => env('MQTT_ROLE_ADMIN_PASSWORD'), ], 'manager' => [ 'username' => env('MQTT_ROLE_MANAGER_USERNAME'), 'password' => env('MQTT_ROLE_MANAGER_PASSWORD'), ], 'user' => [ 'username' => env('MQTT_ROLE_USER_USERNAME'), 'password' => env('MQTT_ROLE_USER_PASSWORD'), ], ], ];