Integrations
db
Interface: pgsql
Supported charms: postgresql-k8s, postgresql
Database integration is a required relation for the indico charm to supply structured data storage for Indico.
Example db integrate command: juju integrate indico postgresql-k8s:db
redis
Interface: redis
Supported charms: redis-k8s
Redis integration is a required relation for the indico charm to supply caching capabilities and
a message broker to interface with Celery. As such, two instances are needed, redis-cache and
redis-broker.
Example db integrate commands: juju integrate redis-cache indico, juju integrate redis-broker indico
ingress
Interface: ingress
Supported charms: nginx-ingress-integrator
Ingress manages external http/https access to services in a kubernetes cluster.
Ingress relation through nginx-ingress-integrator
charm enables additional blog_hostname and use_nginx_ingress_modesec configurations. Note that the
kubernetes cluster must already have an nginx ingress controller already deployed. Documentation to
enable ingress in microk8s can be found here.
Example ingress integrate command: juju integrate indico nginx-ingress-integrator
metrics-endpoint
Interface: prometheus_scrape
Supported charms: prometheus-k8s
Metrics-endpoint relation allows scraping the /metrics endpoint provided by apache-exporter sidecar
on port 9117, which provides apache metrics from apache’s /server-status route. This internal
apache’s /server-status route is not exposed and can only be accessed from within the same
Kubernetes pod. The metrics are exposed in the open metrics format and will only be scraped by Prometheus once the relation becomes active. For more
information about the metrics exposed, please refer to the apache-exporter documentation.
Metrics-endpoint integrate command: juju integrate indico prometheus-k8s
grafana-dashboard
Interface: grafana-dashboard
Supported charms: grafana-k8s
Grafana-dashboard relation enables quick dashboard access already tailored to fit the needs of
operators to monitor the charm. The template for the Grafana dashboard for indico charm can
be found at /src/grafana_dashboards/indico.json. In Grafana UI, it can be found as “Indico
Operator Overview” under the General section of the dashboard browser (/dashboards). 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 indico grafana-dashboard
See more information in Charm Architecture.