To DHCP or to IPAM?!

When adding subnets, what do I put in for the IPAM? Our IPAM is Netbox, but our DHCP is standalone (only for building machines) as all servers have static IPs. I have the ISC DHCP Smart Proxy working, but I’d like Foreman to be able to post and get information to/from Netbox as that’s our source of truth.

Sadly the Netbox API calls aren’t working for me as of yet. But I’m just considering what the best approach is.

As I’m looking at image-based deployments (still very new to Foreman), should I build images with the agent installed so that each deployed machine automatically calls home to Foreman? In which case I don’t think I need to control DHCP at all.

Expected outcome:

Foreman and Proxy versions:
3.4.0 for both

Foreman and Proxy plugin versions:

Distribution and version:
Foreman: on CentOS Stream 8
Server client machines: (mostly) Ubuntu LTS

Other relevant data: