Add Opensource / Selfhosted Provider

[saeedvaziry]

Discussed in #332

^{Originally posted by mymanga November 1, 2024}
Would like to see support for Opensource / Selfhosted Providers like Cloudstack, Proxmox

Cloudstack API: https://cloudstack.apache.org/api/apidocs-4.19/
Proxmox API: https://pve.proxmox.com/wiki/Proxmox_VE_API

[joglomedia]

@saeedvaziry How about OpenStack? I believe OpenStack is widely adopted as well.
Additionally, adding the native libvirt for managing remote KVM host nodes would be great too! :D

Openstack API: https://docs.openstack.org/api-ref/compute/
Libvirt API: https://php.libvirt.org/api-reference.html

[saeedvaziry]

@joglomedia eventually yes we want to support many of these providers. But for now lets go slowly as the more we add the more test and support we need to have which might hold us back from the stability we have.

The current issue should also have the lowest priority.