/laravel-maintenance-mode

Programmatically manage maintenance mode across multiple servers.

Primary LanguagePHPMIT LicenseMIT

Laravel Maintenance Mode

Installation

Install via Composer:

composer require konsulting/laravel-maintenance-mode

Laravel 5.5+ will automatically discover the provider and facade.

Config

Publish the config file with:

php artisan vendor:publish --provider="Konsulting\Laravel\MaintenanceMode\MaintenanceModeProvider"

Middleware

The file driver is compatible with Laravel's existing maintenance mode middleware when using the default configuration values.

To use a different driver or a different file path, add the provided CheckForMaintenanceMode middleware to app/Http/Kernel.php.

class Kernel extends HttpKernel
{
    // ...
    protected $middleware = [
        \Konsulting\Laravel\MaintenanceMode\Middleware\CheckForMaintenanceMode::class,
        
        // You can remove the Illuminate CheckForMaintenanceMode middleware or leave it in
        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
        // ...
    ];
}

Basic usage

By default, the Laravel artisan up and artisan down commands are overridden and so may be used to activate and deactivate maintenance mode using the selected driver. If override_illuminate_commands is set to false in the config, the commands for maintenance mode are site:up and site:down.

The behaviour of maintenance mode is similar to Laravel's default artisan up/artisan down commands. When activated, the a payload containing information about the outage is stored using the chosen driver. This is picked up by the middleware, which throws Illuminate\Foundation\Http\Exceptions\MaintenanceModeException if maintenance mode is active. Laravel's exception handler deals with returning the correct response.

Drivers

By default there are three drivers included: file, cache and storage. The file driver is very similar to Laravel's built in maintenance mode in that it stores a payload file in the local filesystem. The cache and storage drivers are useful for when multiple webservers are serving the application, as they can be easily configured to store the payload at an external location such as a cache server.

See the configuration file for more information about the drivers.

Programmatic usage

Instantiation

The available drivers are: cache, file, and storage. More detail is contained in config/maintenance_mode.php.

$driver = new FileDriver(['file_path' => '/path/to/file']);
$maintenanceMode = new MaintenanceMode($driver);

Activating maintenance mode

Maintenance mode is activated with the MaintenanceMode::on() method.

When maintenance mode is activated, a payload object is created with the information given and stored by the chosen driver. This contains information about the site being taken down, including the at which maintenance mode was activated, the seconds between retry requests, any IP addresses that are allowed to access the site during maintenance mode, and a message associated with the downtime.

$message = 'Down for database upgrades.';
$allowedIps = ['192.168.10.10', '127.0.0.1'];
$secondsToRetry = 60;

$maintenanceMode->on($message, $allowedIps, $secondsToRetry);

$maintenanceMode->isOn(); // true

Retrieving down information

$retrievedPayload = $maintenanceMode->getDownInformation();
// new DownPayload([
//     'time'    => Carbon::now()->getTimestamp(),
//     'message' => 'Down for database upgrades.',
//     'retry'   => 60,
//     'allowed' => ['192.168.10.10', '127.0.0.1'],
// ]);

Deactivating maintenance mode

Maintenance mode is deactivated with the MaintenanceMode::off() method.