# JAAS > JAAS is an enterprise layer on top of Juju that provides centralized controller management, OIDC authentication, and ReBAC authorization. 2026 CC-BY-SA, Canonical Group Ltd ## Pages in this subsection - [Observability (COS)](https://documentation.ubuntu.com/jaas/latest/howto/observability-cos.md): Observability guides for JAAS/JIMM using the Canonical Observability Stack (COS), including monitoring with Grafana, alert rules with Prometheus and Loki, and tracing with Tempo. - [Enable monitoring](https://documentation.ubuntu.com/jaas/latest/howto/observability-cos/enable-monitoring.md): Enable Grafana dashboards for JAAS by integrating with the Canonical Observability Stack (COS). - [Enable alert rules](https://documentation.ubuntu.com/jaas/latest/howto/observability-cos/enable-alert-rules.md): Enable Prometheus and Loki alert rules for JAAS by integrating with the Canonical Observability Stack (COS). - [Enable tracing](https://documentation.ubuntu.com/jaas/latest/howto/observability-cos/enable-tracing.md): Enable distributed tracing for JAAS by integrating with Tempo through the Canonical Observability Stack (COS). ## Optional - [Top-level llms.txt](https://documentation.ubuntu.com/jaas/latest/llms.txt): Complete documentation index.