sunshine

Vizceral Investigation

This is just an example of how we could potentially use Vizceral in SWS. The code here queries Prometheus when running Istio and uses the istio_request_count metric to generate a svc graph for the active services.

To try this out:

• Run the Istio bookinfo demo app

  • Generate traffic (Set PRODUCTPAGE to the exposed productpage svc, like maybe productpage-istio-system.127.0.0.1.nip.io)
  • watch -n 1 curl -o /dev/null -s -w %{http_code}\n $PRODUCTPAGE/productpage

• Setup the Vizceral example app (I cloned it)

  • https://github.com/Netflix/vizceral-example

git clone git@github.com:Netflix/vizceral-example.git
cd vizceral-example
npm install

• Install sunshine into your go env (use a temp GOPATH if you want to keep this isolated)

  • go get github.com/jshaughn/sunshine

• Run sunshine and specify the promHost running in your istio env

  • $GOPATH/bin/sunshine -server http://<promHost>:9090

• This will dump out a JSON config, cut and paste it, replacing the contents of

  • vizceral-example/sample_data.json

• Start Vizceral:

  • npm run dev

• Take a look at localhost:8080

  • Drill down into the mess by clicking
  • Isolate paths in the service graph by hovering over a node
  • See details by single-click a connection or node
  • center view on a node by dbl-click
  • click any node and in the detail popup there should be a link to the prometheus graph for it's requests
    • this is just an example of linking out from the graph

• Notes

  • This is not currently refreshing the service graph, it is just showing the view at the time of the run
  • The code could certainly be cleaned up