[pve-devel] About PVE Backup Integration Guide

[Prashant Patil]

Ok, will give plugins a try and see if we can achieve backup/restore management from our backup solution.



  1.  Can we just implement backup provider plugin and not storage plugin? We can build storage plugin in subsequent releases.
  2.  What are the steps to configure/deploy plugins?
  3.  Can I use the example plugins provided to test? Which one exactly? What are the involved steps to test this?
  4.  Is this the REST API to be used to create backup task? POST /api2/json/nodes/{node}/vzdump



Regards

Prashant



-----Original Message-----
From: Thomas Lamprecht <t.lamprecht at proxmox.com>
Sent: 02 April 2025 12:45 PM
To: Prashant Patil <Prashant.Gamepatil at veritas.com>; Fiona Ebner <f.ebner at proxmox.com>; Proxmox VE development discussion <pve-devel at lists.proxmox.com>
Cc: Anuradha Joshi <Anuradha.Joshi at veritas.com>; Sudhir Subbarao <Sudhir.Subbarao at veritas.com>; Jason Voneberstein <Jason.vonEberstein at veritas.com>
Subject: Re: [pve-devel] About PVE Backup Integration Guide





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Am 02.04.25 um 08:20 schrieb Prashant Patil:

> Basically, the backup/restore tasks will be managed through our backup solution. So, all we needed is VM config which can be fetched through PVE REST API and a API to get access to consistent disk image which can be then transferred to backup storage that we support. But it looks like this is not possible with current design of provider APIs.



It is though, just create PVE backup task for the VMs in question for a Job you manage and a Plugin following the mechanism here gives you exactly that.



> Is there any chance of developing new library which can provide access to consistent disk image in near future?



Above already provides that, we enforce this running in our standard backup environment to ensure it's can be as native as integrated solutions and that all ACL and resource management is followed correctly while being able to create an efficient implementation for both sides, ours and the running VMs and your solution pulling of the data, e.g. including more advanced techniques like changed block tracking and getting the allocation map to skip over holes, allowing one to dramatically speed up the backup process.

Same holds for containers, which we also support and a backup solution should also implement to provide a complete experience that actually nicely integrates into PVE, and not feels tacked on.




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