apache/trafficserver
Dec 2024 – Feb 2026
7 Months active
Languages Used
C++CMakeLuaRSTreStructuredTextConfYAMLMarkdown
Technical Skills
API DevelopmentC++CMakeConfiguration ManagementDocumentationLua
Kit Chan
PROFILE
Kit Chan
Kichan contributed to the apache/trafficserver repository by developing and enhancing core plugin infrastructure, focusing on extensibility, reliability, and observability. Over seven months, Kichan delivered features such as expanded WebAssembly runtime support, Lua API extensions for client request handling, and improved TLS diagnostics through Lua-based certificate retrieval. Using C++, Lua, and CMake, Kichan addressed challenges like IPv6 compatibility, recursive ESI inclusion safety, and CI pipeline stability. The work included updating documentation, refining build systems, and integrating modern CI/CD practices. Kichan’s engineering demonstrated depth through robust testing, careful configuration management, and thoughtful code refactoring to support maintainable, production-grade deployments.
Overall Statistics
Feature vs Bugs
85%Features
Repository Contributions
15Total
Bugs
2
Commits
15
Features
11
Lines of code
3,292
Activity Months7
Your Network
685 peopleSame Organization
@apache.org654
a.huberMember
Akira AjisakaMember
Andrzej BiałeckiMember
Arturo BernalMember
Abhishek KumarMember
Attila BukorMember
VampireAchaoMember
Abhishek ChennakaMember
Andreas DangelMember
Work History
February 2026
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for apache/trafficserver: Key reliability and extensibility enhancements delivered. Stabilized the CI fuzzing pipeline and introduced Lua plugin support for a connection limit exempt list, with full documentation. These changes improve CI reliability, reduce flaky builds, and enable safer, scalable IP exemption management in production.
2 Commits • 1 Features
Feb 1, 2026February 2026 monthly summary for apache/trafficserver: Key reliability and extensibility enhancements delivered. Stabilized the CI fuzzing pipeline and introduced Lua plugin support for a connection limit exempt list, with full documentation. These changes improve CI reliability, reduce flaky builds, and enable safer, scalable IP exemption management in production.
February 2026
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for apache/trafficserver: Focused on hardening TLS handling, improving observability, and boosting maintainability through targeted refactors and feature enhancements. Key initiatives include replacing deprecated ASN1_STRING_data with ASN1_STRING_get0_data to maintain compatibility, and adding Lua-based certificate detail retrieval in the mTLS plugin to improve diagnostics and policy enforcement. Code quality improvements in ats_context.cc (formatting and variable declaration alignment) further reduce risk and aid future maintenance. Overall, these changes reduce downtime risk, improve TLS reliability, and empower operators and developers with better tooling and clearer code.
December 2025
2 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for apache/trafficserver: Focused on hardening TLS handling, improving observability, and boosting maintainability through targeted refactors and feature enhancements. Key initiatives include replacing deprecated ASN1_STRING_data with ASN1_STRING_get0_data to maintain compatibility, and adding Lua-based certificate detail retrieval in the mTLS plugin to improve diagnostics and policy enforcement. Code quality improvements in ats_context.cc (formatting and variable declaration alignment) further reduce risk and aid future maintenance. Overall, these changes reduce downtime risk, improve TLS reliability, and empower operators and developers with better tooling and clearer code.
November 2025
3 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for apache/trafficserver development. Delivered two major feature areas with corresponding tests/docs, enhancing plugin extensibility, IPv6 support, and protocol visibility: - Wasm Plugin IPv6 Port Extraction: Extended port extraction to AF_INET6 with debug logging for unsupported address families. Code touched includes plugins/experimental/wasm/ats_context.cc. Key commit: a1e1ffec7a5e20b0daada3d8bb2c0dbe0366f99c. - Lua Plugin Enhancements: Added verified client IP API and PROXY protocol information access for Lua plugins, with documentation and tests; files updated include docs/admin-guide/plugins/lua.en.rst and plugins/lua/ts_lua_client_request.cc. Key commits: 915a7bc2d77deed80f28fffb5f126b4e85927824 and 833523454d609da613ae54a9c8fdbfbbd82ea293. Impact highlights: - Improved IPv6 compatibility and observability, enabling more reliable port extraction in diverse environments. - Expanded plugin capabilities for verified IP handling and PROXY protocol awareness, enabling safer, more controlled client attribution and enhanced runtime behavior. - Documentation and test coverage now reflect new APIs, reducing onboarding time for plugin developers and improving stability. Technologies/skills demonstrated: - C++ development in ATS core, including AST/ECC context handling and logging. - WASM plugin integration and IPv6 address family handling. - Lua plugin scripting API extensions, client request handling, and test-driven development with gold tests. - Documentation work and test updates to reflect API changes and protocol support.
3 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for apache/trafficserver development. Delivered two major feature areas with corresponding tests/docs, enhancing plugin extensibility, IPv6 support, and protocol visibility: - Wasm Plugin IPv6 Port Extraction: Extended port extraction to AF_INET6 with debug logging for unsupported address families. Code touched includes plugins/experimental/wasm/ats_context.cc. Key commit: a1e1ffec7a5e20b0daada3d8bb2c0dbe0366f99c. - Lua Plugin Enhancements: Added verified client IP API and PROXY protocol information access for Lua plugins, with documentation and tests; files updated include docs/admin-guide/plugins/lua.en.rst and plugins/lua/ts_lua_client_request.cc. Key commits: 915a7bc2d77deed80f28fffb5f126b4e85927824 and 833523454d609da613ae54a9c8fdbfbbd82ea293. Impact highlights: - Improved IPv6 compatibility and observability, enabling more reliable port extraction in diverse environments. - Expanded plugin capabilities for verified IP handling and PROXY protocol awareness, enabling safer, more controlled client attribution and enhanced runtime behavior. - Documentation and test coverage now reflect new APIs, reducing onboarding time for plugin developers and improving stability. Technologies/skills demonstrated: - C++ development in ATS core, including AST/ECC context handling and logging. - WASM plugin integration and IPv6 address family handling. - Lua plugin scripting API extensions, client request handling, and test-driven development with gold tests. - Documentation work and test updates to reflect API changes and protocol support.
November 2025
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for apache/trafficserver. Key focus: enhance ESI plugin reliability and safety by introducing a configurable maximum depth for recursive ESI includes, preventing excessive resource usage and potential infinite loops. This release includes a new configurable option, updated documentation, and a test validating behavior. Major bugs fixed this month: none reported for this repo. Overall impact: reduces risk of resource exhaustion during ESI processing, improves stability and performance in high-traffic scenarios, and provides safer deployment options. Technologies/skills demonstrated: plugin configuration, testing, documentation, and code hygiene (CI-friendly changes, clear commit messages).
June 2025
1 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for apache/trafficserver. Key focus: enhance ESI plugin reliability and safety by introducing a configurable maximum depth for recursive ESI includes, preventing excessive resource usage and potential infinite loops. This release includes a new configurable option, updated documentation, and a test validating behavior. Major bugs fixed this month: none reported for this repo. Overall impact: reduces risk of resource exhaustion during ESI processing, improves stability and performance in high-traffic scenarios, and provides safer deployment options. Technologies/skills demonstrated: plugin configuration, testing, documentation, and code hygiene (CI-friendly changes, clear commit messages).
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for apache/trafficserver. Delivered expanded WebAssembly runtime support for the proxy-wasm plugin by adding Wasmtime and WasmEdge alongside the existing WAMR, increasing runtime portability and options for third-party plugins. Resolved a compilation issue with the wasm plugin and updated the proxy-wasm library usage, stabilizing the build. Updated CMake configuration, runtime discovery scripts, and documentation to reflect the new runtimes, reducing setup friction for operators and contributors. These changes extend plugin portability, improve deployment flexibility, and position Traffic Server for a broader range of WASM-based extensions.
1 Commits • 1 Features
May 1, 2025May 2025 monthly summary for apache/trafficserver. Delivered expanded WebAssembly runtime support for the proxy-wasm plugin by adding Wasmtime and WasmEdge alongside the existing WAMR, increasing runtime portability and options for third-party plugins. Resolved a compilation issue with the wasm plugin and updated the proxy-wasm library usage, stabilizing the build. Updated CMake configuration, runtime discovery scripts, and documentation to reflect the new runtimes, reducing setup friction for operators and contributors. These changes extend plugin portability, improve deployment flexibility, and position Traffic Server for a broader range of WASM-based extensions.
May 2025
February 2025
2 Commits • 2 Features
Feb 1, 2025February 2025: Key reliability and integration improvements in the apache/trafficserver project. Upgraded CI artifact handling and modernized the ModSecurity integration example, aligning with current versions and simplifying WAF onboarding. These changes reduce CI feedback cycles, improve fuzzing workflow reliability, and provide clearer guidance for operators implementing WAF deployments.
February 2025
2 Commits • 2 Features
Feb 1, 2025February 2025: Key reliability and integration improvements in the apache/trafficserver project. Upgraded CI artifact handling and modernized the ModSecurity integration example, aligning with current versions and simplifying WAF onboarding. These changes reduce CI feedback cycles, improve fuzzing workflow reliability, and provide clearer guidance for operators implementing WAF deployments.
December 2024
4 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for apache/trafficserver focusing on delivering new scripting capabilities, enhanced observability, and documentation updates. Key outcomes include Lua API extensions for millisecond sleeps and full header block access, OTLP HTTP exporter enhancements with configurable batching and queueing, and a documentation relocation for the Cookie Remap plugin to experimental status.
4 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for apache/trafficserver focusing on delivering new scripting capabilities, enhanced observability, and documentation updates. Key outcomes include Lua API extensions for millisecond sleeps and full header block access, OTLP HTTP exporter enhancements with configurable batching and queueing, and a documentation relocation for the Cookie Remap plugin to experimental status.
December 2024
Activity
Loading activity data...
Quality Metrics
Correctness92.0%
Maintainability86.6%
Architecture86.6%
Performance82.6%
AI Usage34.6%
Skills & Technologies
Programming Languages
C++CMakeConfLuaMarkdownPythonRSTShellYAMLreStructuredText
Technical Skills
API DevelopmentAPI designAPI developmentAPI documentationAPI integrationApache Traffic Server (ATS)Build SystemsC++C++ developmentC++ programmingCI/CDCMakeConfiguration ManagementContinuous IntegrationDevOps
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline