File system paths¶

In the following table, we summarise some of the most relevant file paths used in the Apache Kafka and Apache ZooKeeper charms.

Apache Kafka¶

Path	Description	Permission
`/opt/kafka`	Binary files for the Charmed Apache Kafka K8s distribution.	(owned by `kafka`)
`/opt/kafka/bin/*.sh`	General bash scripts to provide helpers and utilities for managing and interacting with Apache Kafka.	(owned by `kafka`)
`/etc/kafka/`	Configuration files used by Apache Kafka daemon process. These files are generally written and managed by the charm.	(owned by `kafka`, managed by `root`)
`/var/log/kafka/`	Application Logging files generated by the Apache Kafka daemon process. These files are written by the workload, but they may be read by other components to provide monitoring (e.g. Grafana and/or charm).	(owned and managed by `kafka`)
`/var/lib/kafka/`	Raw data is stored persistently by Apache Kafka during its operations. The files are written and managed by Apache Kafka only.	(owned and managed by `kafka`)

Apache ZooKeeper¶

Path	Description	Permission
`/opt/zookeeper`	Binary files for the Charmed Apache ZooKeeper distribution. Note that this is a read-only Squashfs file system.	(owned by `zookeeper`)
`/opt/zookeeper/bin/*.sh`	General bash scripts to provide helpers and utilities for managing and interacting with Apache ZooKeeper.	(owned by `zookeeper`)
`/etc/zookeeper/`	Configuration files used by Apache ZooKeeper daemon process. These files are generally written and managed by the charm.	(owned by `zookeeper`, managed by `root`)
`/var/log/zookeeper/`	Application Logging files generated by the Apache ZooKeeper daemon process. These files are written by the workload, but they may be read by other components to provide monitoring (e.g. Grafana and/or charm).	(owned and managed by `zookeeper`)
`/var/lib/zookeeper/`	Raw data is stored persistently by Apache ZooKeeper during its operations. The files are written and managed by Apache ZooKeeper only.	(owned and managed by `zookeeper`)

External storage is used for storing persistent raw data, and it is
mounted at /var/lib/zookeeper.