Jwei Wei engineered and maintained core infrastructure for Bottlerocket OS, focusing on kernel, runtime, and packaging workflows across the bottlerocket, bottlerocket-kernel-kit, and bottlerocket-core-kit repositories. He delivered features such as kernel upgrades, NVIDIA integration, and FIPS 140-3 compliance, using Go, Rust, and advanced Makefile techniques to modernize build systems and streamline release engineering. His work included refactoring build pipelines for reliability, implementing containerized tooling, and enhancing security through CVE advisories and cryptographic hardening. By consolidating packaging and automating dependency management, Jwei improved release consistency, security posture, and operational efficiency for large-scale, compliance-driven container platforms.
March 2026 monthly work summary for bottlerocket-os/bottlerocket-core-kit focused on enhancing container image security and improving credentials reliability for production deployments. Delivered key updates and security hardening with traceable commits, aligning with security and compliance goals while preserving performance and compatibility.
March 2026 monthly work summary for bottlerocket-os/bottlerocket-core-kit focused on enhancing container image security and improving credentials reliability for production deployments. Delivered key updates and security hardening with traceable commits, aligning with security and compliance goals while preserving performance and compatibility.
January 2026 focused on stabilizing and standardizing the packaging baseline while preparing for the year’s feature cadence. Key feature delivered: SDK bump to v0.70.0 across bottlerocket-core-kit. Major packaging consolidation across 20+ components in four batches (Batch 1: amazon-ecs-cni-plugins, amazon-ssm-agent, ecr-credential-provider, docker-cli, cni-plugins, docker-engine, amazon-vpc-cni-plugins, containerd, aws-signing-helper; Batch 2: aws-iam-authenticator, aws-otel-collector, aws-signer-notation-plugin, ecr-credential-helper, ecr-credential-provider-1.34, kubernetes-1.29, kubernetes-1.31, kubernetes-1.32, kubernetes-1.30, kubernetes-1.33, kubernetes-1.35, kubernetes-1.34, soci-snapshotter, host-ctr, nvidia-k8s-device-plugin; Batch 3: rocm-k8s-device-plugin, kubernetes (1.32, 1.34, 1.35), ecs-agent, runc, notation, and notation-image-verifier; and an additional consolidation batch across components). This unification reduces drift, simplifies future upgrades, and strengthens security posture, enabling faster, safer deployments across ECS, Kubernetes, containers, and tooling. Demonstrated cross-repo coordination, disciplined commit hygiene, and adherence to security/compliance requirements.
January 2026 focused on stabilizing and standardizing the packaging baseline while preparing for the year’s feature cadence. Key feature delivered: SDK bump to v0.70.0 across bottlerocket-core-kit. Major packaging consolidation across 20+ components in four batches (Batch 1: amazon-ecs-cni-plugins, amazon-ssm-agent, ecr-credential-provider, docker-cli, cni-plugins, docker-engine, amazon-vpc-cni-plugins, containerd, aws-signing-helper; Batch 2: aws-iam-authenticator, aws-otel-collector, aws-signer-notation-plugin, ecr-credential-helper, ecr-credential-provider-1.34, kubernetes-1.29, kubernetes-1.31, kubernetes-1.32, kubernetes-1.30, kubernetes-1.33, kubernetes-1.35, kubernetes-1.34, soci-snapshotter, host-ctr, nvidia-k8s-device-plugin; Batch 3: rocm-k8s-device-plugin, kubernetes (1.32, 1.34, 1.35), ecs-agent, runc, notation, and notation-image-verifier; and an additional consolidation batch across components). This unification reduces drift, simplifies future upgrades, and strengthens security posture, enabling faster, safer deployments across ECS, Kubernetes, containers, and tooling. Demonstrated cross-repo coordination, disciplined commit hygiene, and adherence to security/compliance requirements.
December 2025 monthly summary for bottlerocket-core-kit focused on delivering end-to-end FIPS 140-3 compliance support for Kubernetes components, migrating cryptographic handling from compile-time to runtime, and enabling systemd-based FIPS mode. No major bugs reported; changes are designed to improve security posture and support compliance-driven deployments in production clusters.
December 2025 monthly summary for bottlerocket-core-kit focused on delivering end-to-end FIPS 140-3 compliance support for Kubernetes components, migrating cryptographic handling from compile-time to runtime, and enabling systemd-based FIPS mode. No major bugs reported; changes are designed to improve security posture and support compliance-driven deployments in production clusters.
October 2025: Kernel Kit reliability enhancement in bottlerocket-kernel-kit. Delivered a reliability-focused kernel packaging improvement by ensuring the latest SRPM is selected when multiple SRPMs exist and by refactoring the packaging workflow. Key results include consolidating the package discovery and processing into a single loop, removing reliance on filesystem ordering, which reduces risk of older SRPMs being used and improves automation reliability, reproducibility, and CI throughput. This work strengthens kernel packaging accuracy, traceability, and maintainability, and demonstrates proficiency in packaging tooling, version handling, and code refactoring.
October 2025: Kernel Kit reliability enhancement in bottlerocket-kernel-kit. Delivered a reliability-focused kernel packaging improvement by ensuring the latest SRPM is selected when multiple SRPMs exist and by refactoring the packaging workflow. Key results include consolidating the package discovery and processing into a single loop, removing reliance on filesystem ordering, which reduces risk of older SRPMs being used and improves automation reliability, reproducibility, and CI throughput. This work strengthens kernel packaging accuracy, traceability, and maintainability, and demonstrates proficiency in packaging tooling, version handling, and code refactoring.
September 2025 delivered measurable business value through reliable kernel tooling, security readiness, and updated dependencies across Bottlerocket OS. Highlights include containerized build workflow improvements for Kernel Kit development, security advisories and release prep for the 4.3.x series, and upgrades to the latest kernel-kit patches to improve stability and compatibility. These efforts reduce build failures, accelerate release readiness, and strengthen the product’s security posture.
September 2025 delivered measurable business value through reliable kernel tooling, security readiness, and updated dependencies across Bottlerocket OS. Highlights include containerized build workflow improvements for Kernel Kit development, security advisories and release prep for the 4.3.x series, and upgrades to the latest kernel-kit patches to improve stability and compatibility. These efforts reduce build failures, accelerate release readiness, and strengthen the product’s security posture.
Monthly summary for 2025-08: Bottlerocket kernel kit Build System modernization delivered. Refactored the full-config workflow to use native Make constructs, removed the merge-kernel-configs target, and integrated a docker-run utility to execute kernel config scripts within the full-config flow. This reduces shell-script surface area, simplifies maintenance, and accelerates CI iterations. The change is captured in commit 7b41ee594fd197ed3598b892c017d72630237a9a. Overall impact: more reliable builds, faster feedback, and clearer ownership of the build pipeline, enabling teams to iterate kernel configurations with confidence. Technologies demonstrated: advanced Makefile techniques, Docker-based tooling, build system refactoring, and clean integration of config scripts.
Monthly summary for 2025-08: Bottlerocket kernel kit Build System modernization delivered. Refactored the full-config workflow to use native Make constructs, removed the merge-kernel-configs target, and integrated a docker-run utility to execute kernel config scripts within the full-config flow. This reduces shell-script surface area, simplifies maintenance, and accelerates CI iterations. The change is captured in commit 7b41ee594fd197ed3598b892c017d72630237a9a. Overall impact: more reliable builds, faster feedback, and clearer ownership of the build pipeline, enabling teams to iterate kernel configurations with confidence. Technologies demonstrated: advanced Makefile techniques, Docker-based tooling, build system refactoring, and clean integration of config scripts.
July 2025: Delivered stability, security, and maintainability improvements across Bottlerocket kernel-kit and core Bottlerocket repos. Implemented multi-branch XFRM (IPsec) interface support in kernel-kit, performed kernel maintenance updates, and prepared release advisories for upcoming kit versions. Achieved significant code-quality and dependency upgrades to support future releases with improved reliability and performance.
July 2025: Delivered stability, security, and maintainability improvements across Bottlerocket kernel-kit and core Bottlerocket repos. Implemented multi-branch XFRM (IPsec) interface support in kernel-kit, performed kernel maintenance updates, and prepared release advisories for upcoming kit versions. Achieved significant code-quality and dependency upgrades to support future releases with improved reliability and performance.
May 2025 monthly summary focusing on NVIDIA integration, platform stability, and security readiness across Bottlerocket OS. Key outcomes include: (1) delivered CDI-based NVIDIA runtime integration across the NVIDIA container toolkit and containerd, supporting versions 1.7 and 2.0 with aarch64 CDI spec generation and dynamic CDI/legacy selection; (2) strengthened NVIDIA device-plugin robustness by fixing driver root path resolution, improving the device-list-strategy, and aligning Bottlerocket SDK usage; (3) added backward-compat migrations for NVIDIA device list in Kubelet settings to handle string/list data type changes; (4) platform upgrades to enhance stability and compatibility—Bottlerocket Settings SDK boosted to 0.10.0 and Bottlerocket OS to 1.40.0, with v3.0.0 release readiness including changelog/version updates and CVE advisories; (5) kernel-driver and security improvements, updating NVIDIA drivers to 570.148.08 across kmod-6.12-nvidia-r570 and kmod-6.1-nvidia-r570, updating external RPM checksums, introducing kernel-kit CVE advisories, and mapping UID 1000 for container config merges. Overall impact: stronger runtime consistency for NVIDIA workloads, safer device management, and an improved security posture with clearer release readiness for fleet deployments. Total commits across repos: 17, spanning bottlerocket-core-kit, bottlerocket, and bottlerocket-kernel-kit.
May 2025 monthly summary focusing on NVIDIA integration, platform stability, and security readiness across Bottlerocket OS. Key outcomes include: (1) delivered CDI-based NVIDIA runtime integration across the NVIDIA container toolkit and containerd, supporting versions 1.7 and 2.0 with aarch64 CDI spec generation and dynamic CDI/legacy selection; (2) strengthened NVIDIA device-plugin robustness by fixing driver root path resolution, improving the device-list-strategy, and aligning Bottlerocket SDK usage; (3) added backward-compat migrations for NVIDIA device list in Kubelet settings to handle string/list data type changes; (4) platform upgrades to enhance stability and compatibility—Bottlerocket Settings SDK boosted to 0.10.0 and Bottlerocket OS to 1.40.0, with v3.0.0 release readiness including changelog/version updates and CVE advisories; (5) kernel-driver and security improvements, updating NVIDIA drivers to 570.148.08 across kmod-6.12-nvidia-r570 and kmod-6.1-nvidia-r570, updating external RPM checksums, introducing kernel-kit CVE advisories, and mapping UID 1000 for container config merges. Overall impact: stronger runtime consistency for NVIDIA workloads, safer device management, and an improved security posture with clearer release readiness for fleet deployments. Total commits across repos: 17, spanning bottlerocket-core-kit, bottlerocket, and bottlerocket-kernel-kit.
April 2025 focused on hardening and modernizing the Bottlerocket runtime stack across kernel, kernel-kit, and container-runtime components. Key kernel work prepared for production with base updates and release readiness for v2.0.1 and v2.1.0, including updates to metadata and NVIDIA helper binaries. Security posture improved with v2.1.0 kernel-kit advisories detailing CVEs and patches. NVIDIA integration progressed with device-plugin defaults (CDI and legacy) and updated container toolkit configuration, alongside cleanup of deprecated CDI hooks. OCI hooks configuration was standardized to a single oci-hooks.toml across AWS EKS/ECS. Packaging and dependency alignment advanced with a v2.1.0 kernel-kit upgrade (Twoliter) and modernization of the runtime stack in core-kit.
April 2025 focused on hardening and modernizing the Bottlerocket runtime stack across kernel, kernel-kit, and container-runtime components. Key kernel work prepared for production with base updates and release readiness for v2.0.1 and v2.1.0, including updates to metadata and NVIDIA helper binaries. Security posture improved with v2.1.0 kernel-kit advisories detailing CVEs and patches. NVIDIA integration progressed with device-plugin defaults (CDI and legacy) and updated container toolkit configuration, alongside cleanup of deprecated CDI hooks. OCI hooks configuration was standardized to a single oci-hooks.toml across AWS EKS/ECS. Packaging and dependency alignment advanced with a v2.1.0 kernel-kit upgrade (Twoliter) and modernization of the runtime stack in core-kit.
In 2025-03, delivered targeted kernel-and-core-kit enhancements to improve NVIDIA Container Toolkit compatibility and MIG reliability, while clarifying downstream builder expectations. Key features include relocating NVIDIA helper binaries from /usr/libexec/nvidia/tesla/bin to /usr/bin to align with NVIDIA Container Toolkit expectations, establishing backward-compatible symlinks, and updating packaging (spec file and service definitions) to ensure seamless operation in containerized environments; commits 83527ee0990fc18011b3fd5c657f4509467df02e and 89954baac4dad9a054e2e98d2ef714ededdafe6c. Major bug fix included correcting the hardcoded nvidia-smi path in the MIG manager to /usr/bin/nvidia-smi to ensure MIG configurations can locate and execute the tool; commit dc592d83d873473b16fe2c89a85983564b738a09. In bottlerocket-core-kit, added a clarifying documentation note to the nvidia-container-toolkit spec explaining non-templated configuration files for downstream builders, improving spec readability and reducing misconfigurations; commit 5b6f4036d2ad71769972e5c99bc49749856acb65. Overall, these changes reduce container-runtime errors, improve deployment consistency, and lower maintenance burdens for downstream users relying on NVIDIA integrations.
In 2025-03, delivered targeted kernel-and-core-kit enhancements to improve NVIDIA Container Toolkit compatibility and MIG reliability, while clarifying downstream builder expectations. Key features include relocating NVIDIA helper binaries from /usr/libexec/nvidia/tesla/bin to /usr/bin to align with NVIDIA Container Toolkit expectations, establishing backward-compatible symlinks, and updating packaging (spec file and service definitions) to ensure seamless operation in containerized environments; commits 83527ee0990fc18011b3fd5c657f4509467df02e and 89954baac4dad9a054e2e98d2ef714ededdafe6c. Major bug fix included correcting the hardcoded nvidia-smi path in the MIG manager to /usr/bin/nvidia-smi to ensure MIG configurations can locate and execute the tool; commit dc592d83d873473b16fe2c89a85983564b738a09. In bottlerocket-core-kit, added a clarifying documentation note to the nvidia-container-toolkit spec explaining non-templated configuration files for downstream builders, improving spec readability and reducing misconfigurations; commit 5b6f4036d2ad71769972e5c99bc49749856acb65. Overall, these changes reduce container-runtime errors, improve deployment consistency, and lower maintenance burdens for downstream users relying on NVIDIA integrations.
February 2025 monthly summary: Focused release engineering for KernelKit across Bottlerocket repositories, delivering structured release notes, security advisories, and dependency alignment to enable rapid patch adoption and stable builds. Key work included maintaining parity between KernelKit releases (1.1.0 and 1.1.1) and updating Twoliter configurations to track the latest kernel-kit fixes.
February 2025 monthly summary: Focused release engineering for KernelKit across Bottlerocket repositories, delivering structured release notes, security advisories, and dependency alignment to enable rapid patch adoption and stable builds. Key work included maintaining parity between KernelKit releases (1.1.0 and 1.1.1) and updating Twoliter configurations to track the latest kernel-kit fixes.
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