Loki Coordinator K8S
Platform:
| Channel | Revision | Published | Runs on |
|---|---|---|---|
| 3.7/stable | 88 | 06 Jul 2026 | |
| 3.7/candidate | 88 | 03 Jul 2026 | |
| 3.7/beta | 88 | 03 Jul 2026 | |
| 3.7/edge | 90 | Today | |
| dev/edge | 89 | 13 Jul 2026 | |
| 2/stable | 85 | 07 Jul 2026 | |
| 2/candidate | 85 | 01 Jul 2026 | |
| 2/beta | 85 | 01 Jul 2026 | |
| 2/edge | 85 | 30 Jun 2026 | |
| 1/stable | 29 | 08 Jul 2025 | |
| 1/candidate | 29 | 26 Jun 2025 | |
| 1/beta | 29 | 10 Jun 2025 | |
| 1/edge | 29 | 14 May 2025 |
juju deploy loki-coordinator-k8s --channel 3.7/stableLoki coordinator
Loki Coordinator K8s is a Juju charm that manages the configuration, routing, and external integrations for a horizontally scalable Grafana Loki deployment on Kubernetes. It works together with the Loki Worker charm, following the coordinated-workers pattern. It is a component of the Canonical Observability Stack (COS): https://documentation.ubuntu.com/observability
The coordinator handles all external relations — such as log ingestion, alerting, Grafana datasources, and dashboards — and distributes the generated Loki configuration to the worker units. An nginx reverse proxy routes incoming traffic to the appropriate workers based on their assigned roles.
Key features:
- Centralized management of all external integrations, including log ingestion via
loki_push_api, visualization and data source integration with Grafana, and alerting through Alertmanager.``` - Automatic configuration distribution to Loki Worker units via the loki-cluster relation.
- Built-in nginx reverse proxy for load balancing and traffic routing across workers.
- S3-compatible object storage integration for scalable log data persistence.
- Built-in Grafana dashboards and Prometheus alert rules for self-monitoring.
- Configurable ingestion rate limits, burst sizes, and log retention periods.
- TLS support via the certificates relation.
- Ingress support for external access through reverse proxies such as Traefik.
- Distributed tracing support via integration with Tempo.