Beyla: eBPF automatic instrumentation
summary
Beyla is an eBPF-based automatic instrumentation tool that attaches to a process (can select by port) and exposes Prometheus metrics on :9400 from the running binary without code changes. It ships as a Go binary on GitHub and expands from Go-only to instrumenting any HTTP service, including the OpenTelemetry demo fleet of Java, .NET, Go, Python, Ruby, PHP and Rust services. Runs in-cluster as a DaemonSet in Kubernetes, emits request rates, latency histograms, process metrics and a service graph view.
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