Istio in Action

10 Troubleshooting the data plane

This chapter covers

• Troubleshooting a misconfigured workload
• Detecting and preventing misconfigurations using istioctl and Kiali
• Using istioctl to investigate the service proxy configuration
• Making sense of Envoy logs
• Using telemetry to gain insights into apps

When communicating over the network, many things can go wrong, as we’ve demonstrated throughout this book. A major reason why Istio exists is to help shine a light on network communication when things go wrong and put in place remediation capabilities like timeouts, retries, and circuit breaking so that applications can automatically respond to network issues. The service proxy gives us a very detailed view of what’s happening on the network, but what ...