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Enables asynchronous, worker based thumbnail creation.

Adding a lot of high resolution images to a Pimcore system can cause high load situations. This is mitigated by deferring thumbnail creation via jobs.

If a new asset is added to the system, the normal instant thumbnail generation is prevented and a default placeholder thumbnail is added instead. Simultaneously, a thumbnail creation job is added for the Symfony messenger component. Once the message is processed, the placeholder image is being replaced with the correct thumbnail.

License

GPLv3 - see: gpl-3.0.txt

Requirements

Pimcore >= 6.0.0
RabbitMQ if using the rabbitmq transport (for ampq on PHP 7.3 see: php-amqp/php-amqp#337)
php-redis >= 4.3 if using the redis transport
redis server >= 4.3 if using the redis transport (needs XREADGROUP support)

Installation

Install the bundle using composer composer require mackrais/thumbnail-bundle.
Configure the bundle (see below)
Execute bin/console pimcore:bundle:enable MackraisThumbnailBundle.

Configuration

As long as there is no patch preventing Pimcore from generating system thumbnails, change vendor/pimcore/pimcore/models/Asset/Image.php, in method update the line $path = $this->getThumbnail(Image\Thumbnail\Config::getPreviewConfig())->getFileSystemPath(); to $path = $this->getThumbnail(Image\Thumbnail\Config::getPreviewConfig())->getFileSystemPath(true);
Disable low quality preview generation:

    # app/config/config.yml
    pimcore:
        assets:
            image:
                low_quality_image_preview:
                   enabled: false

Configure the Symfony Messenger (see https://symfony.com/doc/current/messenger.html).

    # app/config/local/messenger.yaml
    framework:
        messenger:
            transports:
                #sample format:
                #async: "%env(MESSENGER_TRANSPORT_DSN)%"
                # sample redis transport, tested: 
                async: "redis://redis:6379/messages"
                #doctrine does not work on pimcore, as only dbal is loaded, not doctrine!
                #async: "doctrine://default"
                # sample rabbitmq, tested:
                #async: "amqp://rabbitmq:rabbitmq@rabbitmq:5672/%2f/messages"
            routing:
                # async is whatever name you gave your transport above
                'Mackrais\ThumbnailBundle\Message\ThumbnailJob':  async
            # The bus that is going to be injected when injecting MessageBusInterface
            default_bus: command.bus
            buses:
                command.bus:
                    middleware:
                        - validation

Process async messenges (jobs) via console (or supervisord, see: https://symfony.com/doc/current/messenger.html) add -vv to see individually processed messages

    bin/console messenger:consume

Configure additional thumbnail formats

If there is a text property thumbnailConfig on the asset (possibly inherited from a parent folder) containing a comma separated list of asset format names, thumbnails for these formats are going to be generated, too.

Configure thumbnail placeholders

@todo not implemented, yet

mackrais / thumbnail-bundle

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