lucavallinThe blog
Long-form notes on platform engineering, cloud-native infrastructure, the Linux kernel and the messy reality of running AI workloads. Written in the open, occasionally opinionated.
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A Tour of eBPF in the Linux Kernel: Observability, Security and Networking
eBPF lets you run small, verified programs inside the Linux kernel, enabling fast observability, security, and networking without changing application code. This practical tour explains why eBPF matters now, how programs are compiled, verified, JITed, and attached to events, and how maps and ring-3 buffers move data. You'll leave with simple demos and a clear mental model to start experimenting.
OpenTelemetry: A Guide to Observability with Go
Modern applications are often complex, distributed systems. Debugging them is not fun: you have to follow requests across services, logs get lost, and metrics are often hard to correlate. It's like looking for a needle in a haystack - except the haystack is on fire, and the needle keeps moving. This is where OpenTelemetry (OTel) can help.
CI/CD Observability on GitHub Actions and the Role of OpenTelemetry
CI/CD observability provides insights into the performance and health of CI/CD pipelines, helping teams detect issues early and improve efficiency. A few options are currently available on the GitHub Actions marketplace to integrate OpenTelemetry into CI/CD workflows.