Yes, they will all need a unique identity as we will be using HBAC along with RBAC. This is an HPC environment with 10k+ unique systems and growing. I can explain more if you'd like. 

On Tue, Sep 1, 2020 at 7:37 PM Ben Aveling via FreeIPA-users <freeipa-users@lists.fedorahosted.org> wrote:
If these machines are stateless, does each new instance need a new and unique identity in IPA?

I don't know if multiple instances concurrently sharing a common identity for IPA purposes would work, but maybe have a pool of identities, and have each newly instantiated machine draw an identity from the pool?

FWIW, we have a number of machines that have a different hostname in IPA to the hostname they use on the network, and touch wood, so far it works fine.
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