Comment 8 for bug 1979208

Please forget comment #7 I was wrong.
I found in the aio zun example the answer to my question...

here the correct conf.d/zun.yml (for any reader that eventually will have my same doubt)

---
# The infra nodes that will be running the zun services
zun-infra_hosts:
  infra1:
    ip: 172.29.236.11
  infra2:
    ip: 172.29.236.12
  infra3:
    ip: 172.29.236.13
zun-compute_hosts:
  compute1:
    ip: 172.29.236.31
  compute2:
    ip: 172.29.236.32
  compute3:
    ip: 172.29.236.33
  compute4:
    ip: 172.29.236.34