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latency and success rate\n+\n+In our first example we've add a configurable latency and success rate to the\n+Python service that underlies all the Envoy examples.\n+\n+First, check out this tag of the example repo:\n+\n+`https://github.com/turbinelabs/envoy-examples/tree/step1`\n+\n+Next, start the Zipkin tracing example in the `zipkin-tracing` directory by running:\n+\n+`docker-compose up --build 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