I have a master node with Virtuozzo to create VPS'es, and I'm currently using PBA as billing system.
Now I have a question, can I share this node with another web hosting provider, which uses either WHMCS or Blesta?
Will it cause conflicts or security issues with the other billing system?
Does Virtuozzo have the capability of creating reseller accounts? If so, you could create the other host a Reseller account, and they will connect to Virtuozzo with that account. I suppose it could work.
I know SolusVM has reseller capability. I don't know to what extent they reach as I have never gone down that route.
Virtuozzo is just the virtualization system, so it does not manage resellers. Are you using PBA(E) or PBA(S)? Having two separate billing systems provisioning VPS Containers to the same Virtuozzo Node should not be a problem in itself; however in the case of PBAS it will detect the VPS Containers created by the other billing system and record them as conflicts that need to be reconciled. Not sure how the other stated billing systems would handle the same scenario.
To eventually replace PBAS or to use in addition too? Have you tried Parallels Cloud Server (PCS)? We use PBAS as our billing system to manage and provision Virtual Servers on PCS and Virtuozzo. For Windows we actually run Virtuozzo inside PCS VM's. In this way you can easily turn up separate PCS VM's on the same physical node with Virtuozzo inside, and thereby keep them isolated to each billing system. This method has worked flawlessly for us for the past 6 months and has the added benefit of PCS Cloud Storage.
Yes, that is what we do to get Windows VPS Containers onto PCS Cloud Storage; and it would allow you to create separate "Virtuozzo VM's" on the same physical node to be managed and provisioned independently by each billing system. The same should work for Linux; however we have not had any reason to do so. Just a thought... works well for us, but may not be for everyone.