IPAM: How to add multiple dublicated networks?

[lopar]

For example, I have multiple docker hosts, all of them are creating dynamic subnets in 172.[17++].0.0/16. Also some completely isolated after NAT routers with similar default subnets. But in NetBox all that subnets MUST be unique.

I tried VRF, but got a mess between real VRF and "virtual ones" which contain 1-2 subnets and exist for exactly 1 unique device. Maintaining this become overcomplicated and huge pain at all.

Am I missing something?