Source:

• bacula.us-1
• bacula.us-2

I use bpipe to backup ProxMox VM. The *.vma files is transfer to Bacula and save disk space on hypervisor.

 
The plugin bpipe is installed in default bacula instalation.
 
 
1. Make a script in the bacula machine:

#!/bin/bash

echo "bpipe:/var/100-vm.vma:/usr/bin/vzdump 100 --quiet --stdout --mode suspend:/usr/sbin/qmrestore - 100 --force"

Bpipe script have unlimited possibilities, see bacula.us-2
 
2. Make a Fileset in bacula-dir.conf file:

Fileset {
  Name = "100-vm-Fileset"
  Include {
    Plugin = "\\|/path/to/script/100-vm.sh"
  }
}

 
3. Make Job with new Fileset and run it in bconsole:

run job=100-vm-job

 
4. Restore VM whit use bconsole:

restore jobid=282

Restore job make reconstruction VM, no recover *.vma file!