S3 Introduction
Currently supported S3 compatible storages are:
AWS (see the AWS guide for a detailed walkthrough)
DigitalOcean Spaces
MinIO
Cloudflare's R2
Backblaze B2
Scaleway Object Storage
Hetzner S3 Storage (beta)
Wasabi hot cloud storage
Vultr
CloudPe Object Storage
Other's could work, but not tested yet. If you test it, please let us know.
S3 Client
Coolify uses MinIO's client, called mc, to copy the backup files to your S3 compatible storage.
Verification
To be able to use your S3 compatible storage, you need to verify it first. Verification done with ListObjectsV2 request to your specified bucket.
So you need to create a bucket first, and then you can verify it.