Proxmox VMS Deploy don't work

Problem:

I can not install a virtual machine with foreman.
Proxmox is successfully connected with foreman.
I do not understand how to boot Proxmox vms via ipxe.
Can someone help me there?

Hello and welcome to the community!

These generic questions “it does not work” are very unlikely to be answered, you need to provide more details. What have you done. What does work. What does not work. Expectations. Error messages. How you were troubleshooting the issue.

I have zero experience with Proxmox however I know something about iPXE. Maybe I could help.