Hi,

I am bootstrapping a ceph cluster using cephadm, and our cluster uses 3 
networks.
We have

- 1 network as public network (10.X.X.0/24) (pub)

- 1 network as cluster network (10.X.Y.0/24) (cluster)
- 1 network for management (172.Z.Z.0/24) (mgmt)

The nodes are reachable using SSH only on mgmt network. However, they are 
reachable for our services using pub network. I want my MONs to be bind to this 
pub network.

But when I bootstrap my cluster, I set my MON IP and CLUSTER NETWORK, and then 
the bootstrap process tries to add my bootstrap node using the MON IP. And then 
fails because it cannot reach the node. If I apply proper spec after it works 
fine, but the bootstrap process did not finish properly.

Is there an option to tell cephadm to not use MON IP but another one for 
accessing the node during the bootstrap? If I tell it --skip-prepare-host, it 
tries to connect to it anyway, and then fails.

Thanks,
Luis Domingues
Proton AG
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