Grafana

Before you Begin

  1. Install Maistra by following the instructions here.

  2. Deploy the Bookinfo application by following these instructions.

Accessing the Grafana user interface

A route to access Grafana UI should already exist. Query OpenShift for details of the route:

  $ oc get routes grafana -n istio-system
  NAME      HOST/PORT                               PATH      SERVICES   PORT      TERMINATION   WILDCARD
  grafana   grafana-istio-system.127.0.0.1.nip.io             grafana    http                    None

Open http://grafana-istio-system.127.0.0.1.nip.io in a browser. You should see Grafana’s home screen, similar to this:

grafana home screen

Istio Mesh Metrics

Select Istio Mesh Dashboard from the drop-down list in the top left corner to see the mesh metrics:

grafana mesh no traffic

Generate some traffic by accessing the Bookinfo application:

$ curl -o /dev/null http://$GATEWAY_URL/productpage

The dashboard should reflect the traffic through the mesh, similarly to this:

grafana mesh with traffic

Istio Service Metrics

To see detailed metrics for a service click on a service name in the "Service" column. The service dashboard will look similar to this:

grafana services

Note that Tcp Bandwidth metrics are empty, as Bookinfo uses http-based services only. Lower down on this dashboard are metrics for workloads that call this service (labeled Client Workloads) and for workloads that process requests from the service (labeled Service Workloads).

You can switch to a different service or filter metrics by client-workloads and service-worloads by using drop-down lists at the top of the dashboard.

Istio Workload Metrics

To switch to workloads dashboard, select Istio Workload Dashboard from the drop-down list in the top left corner of the screen. You should see a screen similar to this:

grafana workloads

This dashboard shows workload’s metrics, and metrics for client- (inbound) and service (outbound) workloads. You can switch to a different workload to filter metrics by inbound or outbound workloads by using drop-down lists at the top of the dashboard.

Cleanup

Follow the Bookinfo cleanup instructions to remove the application.