Concise monthly summary for 2025-07 focusing on business value and technical achievements across the Cray-HPE repositories Cray-HPE/docs-csm and Cray-HPE/csm. Key features delivered: - Kubernetes upgrade workflow improvements in Cray-HPE/docs-csm: Enhancements to the upgrade process include (1) clearer logging with an INFO prefix in upgrade_k8s.sh, (2) post-upgrade cleanup that removes the NCN upgrade marker to avoid lingering state, and (3) version-aware prerequisites that only run PREPARE_KUBEADM and REMOVE_PSP for Kubernetes 1.24 to prevent upgrade failures. - Commits contributing to this feature: 9e345cfcf283ff7b18b507ceb808793285b937fd; 51c5697c2a4fc3c77fe97479ec86b170add285d1; 0acfadfddeb9953fc60681a585857047efaace28. Major bugs fixed: - Kubernetes 1.29 packages precache in Cray-HPE/csm to prevent kube-proxy outage during upgrades when Nexus is inaccessible. This ensures upgrade readiness and reduces downtime risk. - Commit: 20cead7b9251faa0d8af727d8a50fb40efc68d8d. Overall impact and accomplishments: - Increased upgrade reliability and observability across Kubernetes upgrade paths by improving logging, cleanup, and version gating, while proactively preventing kube-proxy outages during upgrades via precaching. - Demonstrated end-to-end care for release engineering: from pre-upgrade state management to post-upgrade cleanup and robust package preparation. Technologies/skills demonstrated: - Shell scripting and automation (upgrade_k8s.sh) with structured logging and conditional prerequisites. - Version-aware deployment logic and prerequisites gating for Kubernetes upgrades. - Manifest/package precaching and upgrade workflow hardening across multiple repos. - Clear commit-based traceability aligned with incident tracking (CASMTRIAGE-...). Business value: - Reduced upgrade failure surface, faster troubleshooting, and minimized downtime risk for production clusters during Kubernetes upgrades.

June 2025 highlights: end-to-end Kubernetes upgrade automation to 1.32 across two Cray-HPE repos, reinforced test readiness with platform-utils prerequisites, and stabilized upgrade signaling through CSM build adjustments. This work reduces upgrade risk, shortens deployment windows, and improves reproducibility across metal and cloud-like environments. Key work includes cross-repo automation, test prerequisites orchestration, and backport-support preparations enabling reliable upgrade paths.

May 2025 monthly summary for Cray-HPE/container-images. Implemented end-to-end CI/CD automation for core container images, including building, signing, and scanning workflows. Integrated pause image 3.9 into the pipeline and standardized CI/CD for Kubernetes components at version 1.32.5 (kube-apiserver, kube-controller-manager, kube-proxy, kube-scheduler). These changes improve security, reproducibility, and release velocity for production deployments. Work aligned with CASMPET-7532 and related changes (#703); commits implemented: 64c2d0ea1df78c97ba9c5e9a3548bf608884c25d and 2d84c7fd1ba922ae928266359cc85e5ab77a8eaf.

March 2025 monthly summary for Cray-HPE/container-images focusing on delivering Kubernetes 1.25 support and stabilizing CoreDNS image builds, with improvements to CI/CD workflows, build, signing, and scanning processes.

February 2025 focused on delivering configurability, policy compatibility, and Kubernetes 1.30 readiness for Cray-HPE/csm. The month included coordinated feature work across cray-drydock, cray-kyverno, and HMS components, aligning resource parameterization, policy posture, and upgrade readiness. These changes reduce operational toil, improve security compliance, and strengthen deployment stability across environments.

January 2025 monthly summary for Cray-HPE/csm focusing on Kubernetes compatibility and Sonar Sync CronJob upgrades. Implemented critical dependency upgrade and API migration to align with Kubernetes 1.25+ changes, improving reliability and maintainability of the Sonar sync workflow.

December 2024 quarterly/monthly summary focused on container imagery maintenance for Cray-HPE/container-images. This month centered on stabilizing the OPA Envoy plugin build path and ensuring licensing metadata accuracy, enabling uninterrupted CI pipelines and ongoing compatibility with policy tooling.