How to integrate with COS

Integrate with Prometheus K8s operator

Deploy and relate prometheus-k8s charm with wordpress-k8s charm through the metrics-endpoint relation via prometheus_scrape interface. Prometheus should start scraping the metrics exposed at :9117/metrics endpoint.

juju deploy prometheus-k8s
juju integrate wordpress-k8s prometheus-k8s

Integrate with Loki K8s operator

Deploy and relate loki-k8s charm with wordpress-k8s charm through the logging relation via loki_push_api interface. Promtail worker should spawn and start pushing Apache access logs and error logs to Loki.

juju deploy loki-k8s
juju integrate wordpress-k8s loki-k8s

Integrate with Grafana K8s operator

In order for the Grafana dashboard to function properly, Grafana should be able to connect to Prometheus and Loki as its datasource. Deploy and relate the prometheus-k8s and loki-k8s charms with grafana-k8s charm through the grafana-source integration.

Note that the integration grafana-source has to be explicitly stated since prometheus-k8s and grafana-k8s share multiple interfaces.

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

Then, the wordpress-k8s charm can be related with Grafana using the grafana-dashboard relation with grafana_dashboard interface.

juju integrate wordpress-k8s grafana-k8s

To access the Grafana dashboard for the WordPress charm, run the get-admin-password action to obtain credentials for admin access.

juju run grafana-k8s/0 get-admin-password

Log into the Grafana dashboard by visiting http://<grafana-unit-ip>:3000. Navigate to http://<grafana-unit-ip>:3000/dashboards and access the WordPress dashboard named Wordpress Operator Overview.