I am a rookie, getting started with ElasticSearch and have a question regarding the SSL certificates used in the ELK stack.
From what I've read in the guides, an SSL certificate is needed for Kibana, but for Elasticsearch I am unsure which SANs are needed. In this topic it is said that it needs to have the node hostnames and not a single URL. (like for typical web applications) This would mean when new nodes are added the certificate needs to be re-issued and I would like to avoid that.
I also wanted to know to what extent can F5 loadbalancing be used? I read that there is also a coordinator role, which is a bit like a loadbalancer. So can F5 be used for Kibana load-balancing and what about the ingestion? (it is also documented that it needs to be pointed to a master node)
I plan to build up as a start a 3 node cluster with master and data roles.