To setup a Generic Object Storage, it is necessary to have an access key, secret key, bucket, region and endpoint.
An access key + secret key set is used to gain entry to the object storage.
Bucket and region are based on your storage configuration.
The endpoint is relative to cloud provider you chose for the storage, and usually includes also the region name. For example, if your storage is on DigitalOcean AMS2 Datacenter, it will be ams2.digitaloceanspaces.com