Cilium with Grafana Stack Observability

Notes

• YouTube - Effortless Open Source Observability with Cilium, Prometheus
• Grafana - Isovalent Dashboards
• GitHub - Opentelemetry Demo Application
• GitHub - GCP Microservice Demo

Configuration

Cilium installation

Install Grafana

kubectl apply -f https://raw.githubusercontent.com/cilium/cilium/main/examples/kubernetes/addons/prometheus/monitoring-example.yaml

Upgrade cilium

cilium upgrade \
  --set prometheus.enabled=true \
  --set operator.prometheus.enabled=true \
  --set hubble.enabled=true \
  --set hubble.metrics.enableOpenMetrics=true \
  --set hubble.metrics.enabled="{dns,drop,tcp,flow,port-distribution,icmp,httpV2:exemplars=true;labelsContext=source_ip\,source_namespace\,source_workload\,destination_ip\,destination_namespace\,destination_workload\,traffic_direction}"

Allow namespaced traffic

kubectl apply -f ns-l7-visibiilty.yaml

Allow clusterwide traffic

kubectl apply -f clusterwide-l7-visibility.yaml

Loki

helm upgrade --install loki grafana/loki --namespace cilium-monitoring --create-namespace \
  --values values.loki.yaml

Promtail

helm upgrade --install promtail grafana/promtail --namespace monitoring --create-namespace \
  --values values.promtail.yaml