Grafana is an open-source visualization tool that allows to query, visualize, alert on, and visualize metrics from mixed datasources in configurable dashboards for observability. This charm is shipped with its own Grafana dashboard and supports integration with the Grafana Operator to simplify observability.

Grafana-dashboard relation enables quick dashboard access already tailored to fit the needs of operators to monitor the charm. Modifications to the dashboard can be made but will not be persisted upon restart/redeployment of the charm.

Grafana-Prometheus integrate command:

juju integrate grafana-k8s:grafana-source prometheus-k8s:grafana-source

Grafana-dashboard integrate command:

juju integrate content-cache-k8s grafana-dashboard`

`ingress`

Interface: ingress

Supported charms: nginx-ingress-integrator, traefik

The Content-cache charm also supports being integrated with Ingress by using NGINX Ingress Integrator.

Ingress manages external HTTP/HTTPS access to services in a Kubernetes cluster. In this case, an existing Ingress controller is required. For more information, see Adding the Ingress Relation to a Charm. Documentation to enable ingress in MicroK8s can be found in Add-on: Ingress.

Ingress integrate command:

juju integrate content-cache-k8s nginx-ingress-integrator

`logging`

Interface: loki_push_api
Supported charms: loki-k8s

Loki is an open-source fully-featured logging system. This charm is shipped with support for the Loki Operator to collect the generated logs.

The logging relation is a part of the COS relation to enhance logging observability. Logging relation through the loki_push_api interface installs and runs promtail which ships the contents of local logs found at /var/log/nginx/error.log and /var/log/nginx/access.log to Loki. This can then be queried through the Loki API or easily visualized through Grafana. Learn more about COS here.

Logging-endpoint integrate command:

juju integrate content-cache-k8s loki-k8s

`metrics-endpoint`

Interface: prometheus_scrape

Supported charms: prometheus-k8s

Prometheus is an open-source system monitoring and alerting toolkit with a dimensional data model, flexible query language, efficient time series database, and modern alerting approach. This charm is shipped with a Prometheus exporter, alerts, and support for integrating with the Prometheus Operator to automatically scrape the targets.

Metrics-endpoint relation allows scraping the /metrics endpoint provided by the charm. The metrics are exposed in the open metrics format and will only be scraped by Prometheus once the relation becomes active.

Metrics-endpoint integrate command:

juju integrate content-cache-k8s prometheus-k8s

Help improve this document in the forum (guidelines). Last updated 2 days ago.