Add nodes to secured cluster

Hello,

Simple question here. I'm using ES 7.2 and i have a running cluster with 3 nodes. Everything is ok all nodes have joined the cluster successfully.

Now that I've initialized the Role Based Access security on the master node and on it's slaves node (through the elasticsearch-setup-passwords process), slaves nodes can't join the cluster, they get rejected by security.

Can someone link me the documentation or give me an example about how to configure elasticsearch.yml to join RBA secured master ?

It would be much appreciated ?

Thx

You need to provide us with actual error messages.