You can deploy Transport Layer Security to the whole Elastic stack (Elasticsearch,
Kibana, Filebeat, and Logstash). To do so, refer to the Elastic documentation: Setting up TLS on a cluster.
Important: If you plan to upgrade your Elastic stack, Talend recommends to verify
the upgrade requirements from Elastic, and to check the breaking changes between major
versions. For details, refer to Upgrading Elastic Stack .