The usage guide covers various aspects of configuring Druid and interconnection with other tools.
usage-guide/deep-storage.adoc, usage-guide/ingestion.adoc and usage-guide/resources-and-storage.adoc are the relevant pages for configuring how your data is stored and ingested.
The usage-guide/security.adoc page explains how to configure TLS, authentication with LDAP and authorization using OPA.
Look into usage-guide/logging.adoc and usage-guide/monitoring.adoc to learn how to observe your Druid status.