Zero-Code OpenTelemetry Instrumentation with eBPF

Summary: This project provides zero-code OpenTelemetry instrumentation for applications using eBPF. It allows developers to collect telemetry data without modifying their application code.

OpenTelemetry offers a standard framework for collecting telemetry data (metrics, logs, traces) in distributed systems. Traditionally, collecting this data requires integrating SDKs into application code, which can be challenging, especially for legacy systems or third-party libraries.

The opentelemetry-ebpf-instrumentation project addresses this by leveraging eBPF. eBPF is a technology that allows running code securely within the Linux kernel. This project uses eBPF programs to monitor system calls and other events at the kernel level, capturing trace and metric data without modifying application code.

This approach significantly reduces operational overhead. Application developers no longer need to write code for instrumentation, while infrastructure teams can ensure consistent observability across the entire system. It is particularly beneficial in microservices architectures or environments using diverse technology stacks.

For engineers, this provides a fast and low-cost way to onboard new applications or enhance the observability of existing ones. However, a basic understanding of eBPF’s kernel dependencies and security models is crucial for troubleshooting and optimization.

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