Goal

Guest assistance could be used to support File-Level Restore, preferably via SSH over VSOCK.

To implement this, we would need to:

• Design a secure KubeVirt-level API to perform guest agent commands for File-Level Restore.
• Collaborate with the platform virt team.
• Consider the needs of the OADP team.

User Stories

• As a KubeVirt user, I would like to partially restore my VM data with specific files or directories, from block level backup of the VM persistent storage created by backup vendor.
• As a backup vendor, I would like to offer file level restore capability similar to vSphere.
• As a backup vendor, I would like to offer a declerative KubeVirt API for file level restore.
• As a user of a Linux VM, I would like to restore file or directory on a LUKS encrypted volume in my running VM.
• As a user of a Windows VM, I would like to restore file or directory on a bitlocker encrypted file system in my running VM.

Non-Requirements

• Backup file browsing is not supported, but may leverage OADP file serving infrastructure.
• Parallel file restores of the same VMs are not supported.

Notes

• No code merge required (maybe a VEP)