Basics

Reference documentation of all configuration and authentication options:

Key	Description	Default	Type	Required
lenses.ip	Bind HTTP at the given endpoint. Use in conjunction with `lenses.port`	0.0.0.0	string	no
lenses.port	The HTTP port to listen for API, UI and WS calls	9991	int	no
lenses.jmx.port	Bind JMX port to enable monitoring Lenses		int	no
lenses.secret.file	The full path to `security.conf` for security credentials	security.conf	string	no
lenses.sql.execution.mode	Streaming SQL mode `IN_PROC`, `KUBERNETES` or `CONNECT`	IN_PROC	string	no
lenses.offset.workers	Number of workers to monitor topic offsets	5	int	no
lenses.telemetry.enable	Enable telemetry data collection	true	boolean	no
lenses.kafka.control.topics	An array of topics to be treated as “system topics”	list	array	no
lenses.grafana	Add your Grafana url i.e. http://grafanahost:port		string	no
lenses.api.response.cache.enable	If enabled, it disables client cache on the Lenses API HTTP responses by adding these HTTP Headers: `Cache-Control: no-cache, no-store, must-revalidate`, `Pragma: no-cache`, and `Expires: -1`.	false	boolean	no

List of default system topics

System or control topics are created by services for their internal use. Below is the list of built-in configuration to identify them.

_schemas
__consumer_offsets
_kafka_lenses_
lsql_*
lsql-*
__transaction_state
__topology
__topology__metrics
_confluent*
*-KSTREAM-*
*-TableSource-*
*-changelog
__amazon_msk*

Wildcard (*) is used to match any name in the path to capture a list of topics not just one. When the wildcard is not specified, Lenses matches on the entry name provided.