Symfony dependency-injection and ObjectStore inheritance

[drzraf]

Although not directly related to the project itself, I'm reporting an attempt to instantiate a usable ObjectStore within a Symfony project and a failure to extends an ObjectStore in this context.

Below service configuration provides a usable openstack_container service:

parameters:
    openstack_default_authurl: 'https://auth.cloud.ovh.net/v3'
    openstack_default_region: UK1
    openstack.authurl: '%env(default:openstack_default_authurl:string:OS_AUTH_URL)%'
    openstack.region: '%env(default:openstack_default_region:string:OS_REGION_NAME)%'
    openstack.username: '%env(string:OS_USERNAME)%'
    openstack.password: '%env(string:OS_PASSWORD)%'
    openstack.tenantId: '%env(string:OS_PROJECT_ID)%'
    openstack.container: '%env(string:CONTAINER_NAME)%'

services:
    # default configuration for services in *this* file
    _defaults:
        autowire: true      # Automatically injects dependencies in your services.
        autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.

    App\Service\FooBar:
        lazy: true
        arguments:
            - '@openstack_container'
            # - '@cached_openstack_container'

    openstack_connection:
        public: true
        lazy: true
        class: OpenStack\OpenStack
        arguments:
            -
                authUrl: '%openstack.authurl%'
                region: '%openstack.region%'
                debugLog: true
                user:
                    name: '%openstack.username%'
                    password: '%openstack.password%'
                    domain:
                        id: 'default'
                scope:
                    project:
                        id: '%openstack.tenantId%'
                logger: '@monolog.logger'

    openstack_objectstore:
        public: true
        lazy: true
        class: OpenStack\ObjectStore\v1\Service
        factory: ['@openstack_connection', objectStoreV1]

    openstack_container:
        public: true
        lazy: true
        class: OpenStack\ObjectStore\v1\Models\Container
        factory: ['@openstack_objectstore', getContainer]
        arguments:
            - '%openstack.container%'

Now I'd like to avoid the network round-trips of the object-store initialization when I only needs access to some container's metadata (which I can afford to cache).

I've a subclass extending Container:

    openstack_metadata_cache_storage:
        class: Symfony\Component\Cache\Adapter\FilesystemAdapter
        arguments: ['token', 36000, '%kernel.cache_dir%']

    cached_openstack_container:
        parent: openstack_container
        class: App\Service\CachedOpenstackContainer

But that's where I'm getting an issue.
GuzzleHttp\ClientInterface and OpenStack\Common\Api\ApiInterface that OpenStack\ObjectStore\v1\Models\Container expects and can't be initialized directly : Symfony factory+DI does not works for my subclass (lazy or not).

How would you suggest to proceed?