在Docker一件部署的环境下，访问MySQL报错SQLSTATE[HY000] [2002]

Dropping all tables ............................................................................................... 16ms FAIL

   Illuminate\Database\QueryException 

  SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo for mysql failed: nodename nor servname provided, or not known (SQL: SHOW FULL TABLES WHERE table_type = 'BASE TABLE')

  at vendor/laravel/framework/src/Illuminate/Database/Connection.php:759
    755▕         // If an exception occurs when attempting to run a query, we'll format the error
    756▕         // message to include the bindings with SQL, which will make this exception a
    757▕         // lot more helpful to the developer instead of just the database's errors.
    758▕         catch (Exception $e) {
  ➜ 759▕             throw new QueryException(
    760▕                 $query, $this->prepareBindings($bindings), $e
    761▕             );
    762▕         }
    763▕     }

      +47 vendor frames 
  48  artisan:37
      Illuminate\Foundation\Console\Kernel::handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))Copy

        'mysql' => [
            'driver' => 'mysql',
            'url' => env('DATABASE_URL'),
            'host' => env('DB_HOST', '127.0.0.1'),
            'port' => env('DB_PORT', '3306'),
            'database' => env('DB_DATABASE', 'forge'),
            'username' => env('DB_USERNAME', 'forge'),
            'password' => env('DB_PASSWORD', ''),
            'unix_socket' => env('DB_SOCKET', ''),
            'charset' => 'utf8mb4',
            'collation' => 'utf8mb4_unicode_ci',
            'prefix' => '',
            'prefix_indexes' => true,
            'strict' => true,
            'engine' => null,
            'options' => extension_loaded('pdo_mysql') ? array_filter([
                PDO::MYSQL_ATTR_SSL_CA => env('MYSQL_ATTR_SSL_CA'),
            ]) : [],
        ],Copy