Exercise 8 - Telemetry

Generate a small load to the application.

while sleep 0.5; do curl http://$INGRESS_IP/hello/world; done

Establish port forward from local port 3000 to the Grafana instance:

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=grafana \
  -o jsonpath='{.items[0].metadata.name}') 3000:3000

Browse to http://localhost:3000 and navigate to Istio Dashboard.

Optional Activities

kubectl -n istio-system port-forward \
  $(kubectl -n istio-system get pod -l app=prometheus -o jsonpath='{.items[0].metadata.name}') \
  9090:9090

Browse to http://localhost:9090/graph and in the “Expression” input box enter: istio_request_count. Click Execute.

kubectl -n istio-system port-forward \
  $(kubectl -n istio-system get pod -l app=servicegraph -o jsonpath='{.items[0].metadata.name}') \
  8088:8088