cilium/tetragon
May 2026 – May 2026
1 Month active
Languages Used
CGoMarkdown
Technical Skills
BPFC programmingGo programmingbackend developmentdocumentationkernel programming
David Fernandez Gonzalez
PROFILE
David Fernandez Gonzalez
Developed SubString operator support across multiple data types in the cilium/tetragon repository, enabling more granular policy and tracing capabilities for runtime security. Leveraging C and Go, the work extended policy matching to fields such as Fd, File, Path, Dentry, LinuxBinprm, DataLoc, NetDev, and SockaddrUn, allowing substring-based conditions in production policies. The implementation included comprehensive end-to-end and kernel-level tests to validate functionality and maintain performance. Documentation was updated to guide users in adopting the new SubString and SubStringIgnoreCase operators. This feature broadened policy coverage while ensuring reliability and precision in backend and kernel programming contexts.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
1
Lines of code
299
Activity Months1
Your Network
164 peopleSame Organization
@isovalent.com69
Work History
May 2026
3 Commits • 1 Features
May 1, 2026In May 2026, delivered SubString operator support across multiple data types for policy/tracing in cilium/tetragon, enabling richer substring-based policy matching across Fd, File, Path, Dentry, LinuxBinprm, DataLoc, NetDev, and SockaddrUn. This work included end-to-end tests, kernel support validation via tests/probes, and accompanying documentation to enable users to adopt SubString operators in production policies. The enhancements broaden policy coverage while maintaining performance and reliability, contributing to stronger runtime security and more precise policy enforcement.
3 Commits • 1 Features
May 1, 2026In May 2026, delivered SubString operator support across multiple data types for policy/tracing in cilium/tetragon, enabling richer substring-based policy matching across Fd, File, Path, Dentry, LinuxBinprm, DataLoc, NetDev, and SockaddrUn. This work included end-to-end tests, kernel support validation via tests/probes, and accompanying documentation to enable users to adopt SubString operators in production policies. The enhancements broaden policy coverage while maintaining performance and reliability, contributing to stronger runtime security and more precise policy enforcement.
May 2026
Activity
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Quality Metrics
Correctness100.0%
Maintainability86.6%
Architecture86.6%
Performance86.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
CGoMarkdown
Technical Skills
BPFC programmingGo programmingbackend developmentdocumentationkernel programmingtestingtracing
Repositories Contributed To
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