Open source ebpf auto-instrumentation with Grafana Beyla

Grafana Beyla is an open-source eBPF auto-instrumentation tool designed to simplify application observability without requiring code modification or redeployment. Announced at ObservabilityCON 2023, Beyla 1.0 offers auto-instrumentation for Linux HTTP/S and gRPC services, reporting basic transaction span information and RED metrics (Rate-Errors-Duration). It leverages eBPF (Extended Berkeley Packet Filter) to attach programs to the Linux kernel, providing safe, efficient runtime inspections while running in a sandbox environment. Beyla can be set up with Grafana Cloud and integrated with Prometheus for metrics exportation, and it supports various programming languages, including Go, NodeJS, Python, and Java. Although Beyla provides a fast, safe way to gather basic metrics, it does not replace language agents, which offer finer granularity and are recommended for critical operations. Future enhancements include supporting additional protocols and distributed tracing capabilities.

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