🐛 Feature Request: Support Multiple Local Disks / Storage Pools in OpenCloud User Data (without LVM or RAID)

[cryinkfly]

📄 Problem Description

Currently, OpenCloud supports only a single local filesystem path for user data storage (e.g. /var/lib/opencloud).

Even when multiple physical disks or partitions are mounted and available on the host system:

❌ Only one storage path is actively used
❌ Additional mounted disks are ignored
❌ No built-in mechanism for distributing data across multiple storage locations
❌ No native storage pooling at application level

This limits scalability and flexibility for self-hosted deployments such as home servers, NAS systems, or multi-disk setups.

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🎯 Feature Request

Introduce native multi-disk storage support inside OpenCloud, allowing multiple independent storage paths to be used as a single logical storage pool.

This should work with any mounted filesystem supported by the host OS, without requiring:

❌ LVM
❌ RAID
❌ ZFS
❌ mergerfs / unionfs
❌ any external storage aggregation layer

Add a web interface feature that allows administrators to:

✅ view available storage disks
✅ select one or multiple disks for storage
✅ assign disks to user storage or system storage
✅ optionally combine disks into a single storage pool

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🧾 Clarification: Existing storage_users Section (Demo)

The current configuration includes sections like:

storage_users:
  events:
    tls_insecure: true
  mount_id: 7ceddffb-c13e-4fea-861a-b595d7363aff
  service_account:
    service_account_id: 60da5e96-5c15-44aa-af48-650a048b3552
    service_account_secret: w@47gapem19euq1p-D2F*+g!jO$miQ=7