Requirements

• October CMS 3.0
• PHP 8.0.2 or higher
• PHP extensions: ext-pcntl, ext-posix and ext-redis.
• Supervisor, see Laravel 9.x supervisor configuration.

Installation

composer require vdlp/oc-horizon-plugin

Turn off auto discovery for laravel/horizon (important)

Because this plugin has it's own HorizonServiceProvider which extends from the Laravel\Horizon\HorizonServiceProvider we need to prevent the Laravel\Horizon\HorizonServiceProvider from being loaded due to Laravels' auto package discovery.

You should add the dont-discover option to your projects composer.json file (which is located in the root path of your project).

"extra": {
    "laravel": {
        "dont-discover": [
            "laravel/horizon"
        ]
    }
}

IMPORTANT: After adding these lines, make sure you execute composer update to apply the changes. You also need to remove the file storage/framework/packages.php file. No worries. This file will be re-generated once you access your project.

IMPORTANT: Make sure the composer.json is deployed to your hosting site. This will be parsed by te framework to determine which service providers should be ignored.

Assets & Configuration

php artisan horizon:install

Update Horizon Assets

To update the Horizon Assets you can use the following command:

php artisan horizon:publish

IMPORTANT: Add the above command to your deployment logic or composer update scripts. This way the assets will always be up to date on your staging or production environment.

• Configure Laravel Horizon settings file at config/horizon.php, please make sure use contains horizon (see the configuration snippet below).

    /*
    |--------------------------------------------------------------------------
    | Horizon Redis Connection
    |--------------------------------------------------------------------------
    |
    | This is the name of the Redis connection where Horizon will store the
    | meta information required for it to function. It includes the list
    | of supervisors, failed jobs, job metrics, and other information.
    |
    */

    'use' => 'horizon',

• Add connection to config/queue.php:

    'redis' => [

        'driver' => 'redis',
        'connection' => 'horizon', // References: databases.redis.horizon
        'queue' => env('REDIS_QUEUE', 'default'),
        'retry_after' => env('QUEUE_RETRY_AFTER', 90),
        'block_for' => null,

    ],

• Add Redis database configuration for Horizon specifically to config/databases.php:

    'redis' => [

        'cluster' => false,
        'client' => 'phpredis',

        'default' => [
            // ..
        ],

        'horizon' => [
            'host' => env('HORIZON_REDIS_HOST', '127.0.0.1'),
            'password' => env('HORIZON_REDIS_PASSWORD'),
            'port' => env('HORIZON_REDIS_PORT', 6379),
            'database' => env('HORIZON_REDIS_DATABASE', '1'),
        ]

    ],

• Modify the queue connection QUEUE_CONNECTION (which can be found in config/queue.php) to redis as such:

    /*
    |--------------------------------------------------------------------------
    | Default Queue Driver
    |--------------------------------------------------------------------------
    |
    | The Laravel queue API supports a variety of back-ends via an unified
    | API, giving you convenient access to each back-end using the same
    | syntax for each one. Here you may set the default queue driver.
    |
    | Supported: "null", "sync", "database", "beanstalkd",
    |            "sqs", "iron", "redis"
    |
    */

    'default' => env('QUEUE_CONNECTION', 'redis'),

• .env should at least have the following QUEUE_ and HORIZON_ variables:

#
# Queue
#
QUEUE_CONNECTION = "redis"
QUEUE_RETRY_AFTER = 90

#
# Horizon
#
HORIZON_PREFIX = "myproject-local:"

HORIZON_REDIS_HOST = "127.0.0.1"
HORIZON_REDIS_PASSWORD = null
HORIZON_REDIS_PORT = 6379
HORIZON_REDIS_DATABASE = "1"

It's recommended to add your Queue Worker Configuration config.horizon.environments to the .env file as well.

Server configuration

• Add the following to the supervisord configuration on the server. The complete supervisord configuration can be found on the supervisor website.

[program:<queue-name>-queue]
process_name=%(program_name)s_%(process_num)02d
directory=/<myproject-directory>
command=/<path-to-php>/php /<myproject-directory>/artisan horizon
autostart=true
autorestart=true
user=<user>
numprocs=1
redirect_stderr=true
stdout_logfile=/var/log/supervisord/<queue-name>-queue.log

• Add the following to the cronjob configuration on the server. This will make sure the Horizon metrics are created periodically.

* * * * * /<path-to-php>/php /<myproject-directory>/artisan schedule:run > /dev/null

Creating Job classes

Follow the instructions at Laravel 9.x generating job classes on how to make Job classes.

Please note that the use of the php artisan make:job command is not supported in October CMS. October CMS is using a different application structure in comparison to a generic Laravel project.

This plugin also contains an example job file: Vdlp\Horizon\Example. This example file does not use the SerializesModels and InteractsWithQueue trait.

Testing

1. Log-in to the backend.
2. Put application in debug mode using the .env file: APP_DEBUG=true or by changing the debug key in the config/app.php file.
3. Run Horizon using this command: php artisan horizon.
4. Now run this command to push some Vdlp\Horizon\Example jobs to the queue:

php artisan vdlp:horizon:push-example-jobs

5. Check the Horizon dashboard at /backend/vdlp/horizon/dashboard or at /horizon.
6. Each Vdlp\Horizon\Example job should log a random string to the application log (level = debug).

Documentation

Please go to the Laravel website for detailed documentation about Laravel Horizon.

Horizon for Laravel 9.x

Questions

If you have any question about how to use this plugin, please don't hesitate to contact us at octobercms@vdlp.nl. We're happy to help you. You can also visit the support forum and drop your questions/issues there.