How-To Guides

Step-by-step recipes for connecting external systems to Cardinal, wiring up collectors, and operating around common gotchas. Each guide is destination-agnostic where possible — pick the exporter that fits your downstream.

Available guides

• Polling OpenShift Prometheus metrics from outside the cluster — pull selected prometheus-k8s metrics through the OpenShift federate Route into an external collector.
• Collecting pod logs from OpenShift — deploy a privileged OpenTelemetry Collector DaemonSet that tails /var/log/pods and ships OTLP to your destination.
• Collecting PostgreSQL metrics with postgres_exporter — scrape a PostgreSQL StatefulSet from an in-cluster OpenTelemetry Collector.
• Shipping Proxmox & Ceph telemetry with a per-node OTel Collector — install ceph-exporter and otelcol-contrib on every PVE node and ship hostmetrics, Ceph metrics, and Ceph + systemd logs over OTLP.