Demo Features

• Kubernetes: the app is designed to run on Kubernetes (both locally, as well as on the cloud) using a Helm chart.
• Docker: this forked sample can also be executed only with Docker.
• gRPC: microservices use a high volume of gRPC calls to communicate to each other.
• HTTP: microservices use HTTP where gRPC is unavailable or not well supported.
• OpenTelemetry Traces: all services are instrumented using OpenTelemetry available instrumentation libraries.
• OpenTelemetry Metrics: Select services are instrumented using OpenTelemetry available instrumentation libraries. More will be added as the relevant SDKs are released.
• OpenTelemetry Collector: all services are instrumented and sending the generated traces and metrics to the OpenTelemetry Collector via gRPC. The received traces are then exported to the logs and to Jaeger; received metrics and exemplars¹ are exported to logs and Prometheus.
• Jaeger: all generated traces are being sent to Jaeger.
• Synthetic Load Generation: the application demo comes with a background job that creates realistic usage patterns on the website using Locust load generator.
• Prometheus: all generated metrics and exemplars are scraped by Prometheus.
• Grafana: all metric dashboards are stored in Grafana.
• Envoy: Envoy is used as a reverse proxy for user-facing web interfaces such as the frontend, load generator, and feature flag service.