43 lines
2.1 KiB
Markdown
43 lines
2.1 KiB
Markdown
---
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title: Demo Features
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linkTitle: Features
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aliases: [/docs/demo/demo_features]
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---
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- **[Kubernetes](https://kubernetes.io/)**: the app is designed to run on
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Kubernetes (both locally, as well as on the cloud) using a Helm chart.
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- **[Docker](https://docs.docker.com)**: this forked sample can also be executed
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only with Docker.
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- **[gRPC](https://grpc.io/)**: microservices use a high volume of gRPC calls to
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communicate to each other.
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- **[HTTP](https://www.rfc-editor.org/rfc/rfc9110.html)**: microservices use
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HTTP where gRPC is unavailable or not well supported.
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- **[OpenTelemetry Traces](/docs/concepts/signals/traces/)**: all services are
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instrumented using OpenTelemetry available instrumentation libraries.
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- **[OpenTelemetry Metrics](/docs/concepts/signals/metrics/)**: Select services
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are instrumented using OpenTelemetry available instrumentation libraries. More
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will be added as the relevant SDKs are released.
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- **[OpenTelemetry Collector](/docs/collector/)**: all services are instrumented
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and sending the generated traces and metrics to the OpenTelemetry Collector
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via gRPC. The received traces are then exported to the logs and to Jaeger;
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received metrics and exemplars[^1] are exported to logs and Prometheus.
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- **[Jaeger](https://www.jaegertracing.io/)**: all generated traces are being
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sent to Jaeger.
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- **Synthetic Load Generation**: the application demo comes with a background
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job that creates realistic usage patterns on the website using
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[Locust](https://locust.io/) load generator.
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- **[Prometheus](https://prometheus.io/)**: all generated metrics and exemplars
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are scraped by Prometheus.
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- **[Grafana](https://grafana.com/)**: all metric dashboards are stored in
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Grafana.
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- **[Envoy](https://www.envoyproxy.io/)**: Envoy is used as a reverse proxy for
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user-facing web interfaces such as the frontend, load generator, and feature
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flag service.
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[^1]:
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Only exemplars attached to histograms are currently exported to Prometheus.
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For details, see [Collector issue #18201][].
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[Collector issue #18201]:
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https://github.com/open-telemetry/opentelemetry-collector-contrib/issues/18201
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