google/gvisor
Sep 2025 – Sep 2025
1 Month active
Languages Used
BashBazelDockerfileGoMakefileStarlark
Technical Skills
BazelBuild System ConfigurationBuild SystemsBzlmodCI/CDContainerization
Andrei Vagin
PROFILE
Andrei Vagin
Over two months, Andrey Vagin modernized build and runtime systems across the google/gvisor and k3s-io/runc repositories. He led a Bazel build system migration to Bzlmod, streamlining dependency management and accelerating CI cycles using Bazel, Starlark, and Go. In gvisor, he upgraded Go modules and gRPC dependencies, improved test reliability with caching, and enhanced development tooling via Dockerfile updates. For k3s-io/runc, Andrey stabilized container time namespace handling after CRIU checkpoint/restore, ensuring restored processes maintained correct isolation. His work demonstrated deep expertise in build systems, containerization, and Linux kernel namespaces, delivering robust, maintainable solutions to complex infrastructure challenges.
Overall Statistics
Feature vs Bugs
80%Features
Repository Contributions
11Total
Bugs
1
Commits
11
Features
4
Lines of code
7,642
Activity Months2
Your Network
57 people
Work History
September 2025
10 Commits • 4 Features
Sep 1, 2025September 2025 focused on modernizing the build system, stabilizing dependencies, and accelerating test cycles for google/gvisor. Key work includes a Bazel build system modernization with a complete Bzlmod migration (removing legacy WORKSPACE, enabling bzlmod in .bazelrc, and aligning MODULE.bazel), Go dependency management and gRPC upgrades to improve stability and compatibility, test reliability enhancements with caching to speed up CI, and a Docker-based Go toolchain upgrade to support newer toolchains. These efforts reduce maintenance overhead, shorten build and test times, and improve portability across environments.
10 Commits • 4 Features
Sep 1, 2025September 2025 focused on modernizing the build system, stabilizing dependencies, and accelerating test cycles for google/gvisor. Key work includes a Bazel build system modernization with a complete Bzlmod migration (removing legacy WORKSPACE, enabling bzlmod in .bazelrc, and aligning MODULE.bazel), Go dependency management and gRPC upgrades to improve stability and compatibility, test reliability enhancements with caching to speed up CI, and a Docker-based Go toolchain upgrade to support newer toolchains. These efforts reduce maintenance overhead, shorten build and test times, and improve portability across environments.
September 2025
March 2025
1 Commits
Mar 1, 2025Concise monthly summary focusing on the k3s-io/runc work for 2025-03. The primary focus was stabilizing time namespace behavior for containers undergoing CRIU checkpoint/restore, ensuring post-restore processes are correctly placed within the container’s time namespace and reducing restore-time failures.
March 2025
1 Commits
Mar 1, 2025Concise monthly summary focusing on the k3s-io/runc work for 2025-03. The primary focus was stabilizing time namespace behavior for containers undergoing CRIU checkpoint/restore, ensuring post-restore processes are correctly placed within the container’s time namespace and reducing restore-time failures.
Activity
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Quality Metrics
Correctness87.2%
Maintainability87.2%
Architecture83.6%
Performance72.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
BashBazelDockerfileGoMakefileStarlark
Technical Skills
BazelBuild System ConfigurationBuild SystemsBzlmodCI/CDContainerizationDebuggingDependency ManagementDevOpsEnd-to-End TestingGo ModulesLinux Kernel NamespacesSystem ProgrammingTesting
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline
k3s-io/runc
Mar 2025 – Mar 2025
1 Month active
Languages Used
BashGo
Technical Skills
ContainerizationLinux Kernel NamespacesSystem ProgrammingTesting