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Example: per-tenant maintenance (planned — Sprint 3)

⚠️ This feature is on the roadmap but not yet implemented.

Goal

In a SaaS app where one CodeIgniter instance serves many tenants, allow each tenant to be in or out of maintenance independently:

$config->driver           = 'cache';
$config->tenantResolver   = static fn () => current_tenant_id();
$config->cacheKeyTemplate = 'maintenance_mode_data_{tenant}';

MaintenanceService would then look up maintenance_mode_data_acme, maintenance_mode_data_globex, etc. — one entry per tenant.

Workaround today

Set $cacheKey dynamically in app/Config/Maintenance.php's constructor:

public function __construct()
{
    parent::__construct();

    $tenant = service('tenants')->current()->slug ?? 'default';
    $this->cacheKey = "maintenance_mode_data_{$tenant}";
}

Caveat: this fires on every config('Maintenance') call. Cache the tenant lookup if it's expensive.