July 2026 monthly summary for lsst-control: Delivered deployment stabilization by implementing dependency pinning for xrootd and davix, and removing the old yum repository configuration to shift to controlled dependency management. This improves reproducibility, reduces installation variability, and accelerates release and incident response across environments.

June 2026 monthly summary for lsst-control: Executed a targeted upgrade of the RKE2 Kubernetes version to 1.35.1~rke2r1 across server and agent roles, updating configuration files and test suites to ensure compatibility with the new release series. Delivered a minimal-risk upgrade path with clear documentation and commit-level traceability, enabling improved stability and security posture in production environments.

May 2026 monthly summary focused on delivering reliable infrastructure updates, streamlined configurations, and maintenance simplifications across two repositories. Key outcomes include a network configuration overhaul with cross-node tests, a Kubernetes upgrade to RKE2 1.34.7 with removal of deprecated rke.yaml, and removal of the Kueyen monitoring component from the Prometheus/Alertmanager stack to reduce maintenance burden and risk.

April 2026 monthly summary focused on delivering scalable storage, network reliability, and environment compatibility, with a strong emphasis on business value and operational stability across two repositories (lsst-it/k8s-cookbook and lsst-it/lsst-control). Key features delivered: - Yagan/CNPG Storage Capacity Upgrade: increased Yagan cluster PVCs from 510Gi to 600Gi and CNPG-cluster on Yagan overlay from 600Gi to 650Gi, enabling larger datasets and longer retention windows. Commits: c6801d9f451d4d6eb8bac2f82c4fbf024ae5e4da; 5e0eaa6468385914600aff01cab22d5c17790dd4. - Backup System Storage Capacity Increase: boosted k8up bucketMaxSize from 15Ti to 20Ti to support expanded data retention and backups. Commit: 6e170bae21684707f43b249bd6d2c2cb2f458df2. - MetalLB IP Pool Configuration Update: refreshed MetalLB IP address pool to improve network management and allocation. Commit: 1bd70857b9777997983e67e3fa789776e764b6e7. - Improve MetalLB Liveness/Readiness Probe Startup Stability: increased initial probe delays to 120 seconds, enhancing deployment startup reliability. Commit: 421743b4979d247417e4ae7517400d234bba9b61. - Python 3.13 Environment Compatibility for Hexrot Role: updated symbolic links to point to Python 3.13 environment binaries, ensuring compatibility with the latest Python version. Commit: 5f628750da8b5b2ba1a4ef9e161f22d55d43e886. Major bugs fixed: - Ceph Disk ID Mapping Fix for Kueyen Cluster: corrected disk ID mappings to ensure accurate device mapping for Ceph nodes, preventing misalignment between OS disks and Ceph data OSDs. Commit: 32cb82cc8928750ce3c6b2bd25e3459fd66c829f. Overall impact and accomplishments: - Expanded storage capacity and improved backup retention, directly enabling larger data workloads and longer data horizons with no added operational risk. - Strengthened network reliability and scalability through updated IP allocation and more stable MetalLB startup, reducing deployment time and post-boot issues. - Improved runtime compatibility and automation test coverage, decreasing friction for Python 3.13+ environments and network provisioning. Technologies/skills demonstrated: - Kubernetes storage (PVC, CNPG), k8up, and backup workflows; Ceph disk mapping awareness; MetalLB networking and health probes; Python environment management; Ansible role maintenance (Hexrot) and network provisioning tests.

March 2026 summary for lsst-control: Upgraded core Kubernetes and hardened host provisioning workflows to improve stability, security, and deployment reliability. This period focused on aligning the control plane with the latest Kubernetes release and validating provisioning pathways for EL9 hosts.

February 2026 monthly summary for lsst-control: Delivered targeted infrastructure enhancements spanning networking, orchestration, backups, and security; aligned with business goals of reliability, security, and maintainability. Implemented concrete changes with traceable commits across the repository, reinforcing operational discipline and enabling faster recovery.

January 2026 monthly summary for lsst-control and k8s-cookbook focusing on stabilizing deployment configurations and ensuring compatibility with evolving Kubernetes tooling and networking services. Delivered an across-the-board RKE2 upgrade to 1.32.11 with configuration consolidation, eliminating outdated role configurations for consistency across servers and agents. Implemented MetalLB Prefix Compatibility Fix to align annotations with the new service prefix, ensuring compatibility with the latest MetalLB version. These efforts reduce upgrade drift, improve deployment reliability, and accelerate future changes while demonstrating strong proficiency in Kubernetes administration, configuration management, and YAML/annotation hygiene.

December 2025 — Key outcomes: 1) RKE2 Kubernetes upgrade to 1.32.10~rke2r1 across configs/tests to align with supported releases and unlock newer features; 2) Puppet module rollbacks to stable versions for cron_core, sshkeys_core, and selinux_core to restore compatibility and stability with newer releases. Impact: improved deployment reliability, reduced regression risk, and clearer upgrade paths across environments. Technologies demonstrated include Kubernetes/RKE2, Puppet, Puppetfile management, config/tests automation, and Git-based change tracing.

November 2025 performance summary for lsst-control focused on platform stability, upgrade readiness, and future-proofing through dependency modernization. The team completed a major stack upgrade, standardized dependency management, and implemented a forked module strategy to bridge upstream changes, all while maintaining a stable release cadence and minimizing risk to production services.

October 2025 performance highlights across lsst-control and k8s-cookbook. Delivered strategic platform upgrades to improve security, reliability, and maintainability, while reducing future toil through proactive compatibility work. Key outcomes include multi-repo version upgrades, EL8 compatibility fixes via local forks, and updated configurations and tests to reflect newer component versions. These efforts position the team for safer deployments, faster iterations, and easier future upgrades.

Monthly summary for 2025-09 focusing on delivering stability, compatibility, and dev-environment modernization in the lsst-control workstream. Highlights include dependency upgrades across role and GUI to align packages, introduction of a local simp-mate fork for internal customizations, and an RKE2 development environment upgrade to Kubernetes 1.32.2. These changes reduce risk from dependency drift, improve consistency between role and GUI, enable faster feature delivery, and streamline dev/test workflows across the project.

August 2025 monthly summary for lsst-control focusing on feature delivery, validation, and impact. Delivered two key features with validation tests, improving deployment reliability and consistency across environments. The work reduces configuration drift and accelerates onboarding of new environments, with clear documentation of changes.

July 2025 (2025-07) monthly summary for lsst-control: Delivered security-hardening and provisioning improvements for observer-related infrastructure. Key features delivered: - Observer node cleanup: removed powertop from observer workstation and decommissioned observer.ls.lsst.org configuration to reduce attack surface and simplify management. - Observer01 network interface fix: corrected network interface naming from enp10s0 to enp7s0 and aligned hieradata and tests. - Observerstation01 host setup: added and validated configuration for observerstation01.cp.lsst.org with powertop disabled and DHCP-enabled enp7s0. Major bugs fixed: fixed network interface naming for observer01.cp.lsst.org, and aligned configuration/testing for observerstation01 to ensure reliable provisioning and power-management settings. Overall impact and accomplishments: security hardening and infrastructure simplification reduce operational risk, improve consistency across observer hosts, and enable faster safe deployments and maintenance. Technologies/skills demonstrated: infrastructure as code (Puppet/hiera), configuration testing, network interface naming conventions, DHCP-based provisioning, and component decommissioning.

June 2025 monthly summary focusing on business value and technical achievements across lsst-control and k8s-cookbook. Delivered build/tooling improvements, host configuration enhancements, and foundational Kubernetes data-protection work. The work reduced operational risk, improved deployment consistency, and established reusable patterns for future work.

2025-05 monthly summary focusing on key accomplishments, business value, and technical achievements across two repos. Emphasizes feature delivery, impact, and skills demonstrated with concrete commit references for traceability.

2025-04 Monthly Summary – lsst-control (lsst-it). Focused on stabilizing the infrastructure stack, validating network configurations, and eliminating unused packages across core nodes. Delivered key Puppet-based upgrades, network hardening, and tests to ensure configuration drift is caught early.

March 2025: Focused on enhancing monitoring coverage for the Kubernetes deployment in lsST-it/k8s-cookbook by tuning the Raritan PDU SNMP exporter in kube-prometheus-stack. Implemented a more responsive monitoring cadence and maintained stability, delivering measurable improvements in metric freshness for critical power devices.

February 2025 monthly summary for lsst-it/lsst-control: Implemented a critical dependency pin on the tailscale module to ensure apt compatibility, stabilise Puppet module management, and prepare for apt 10.x compatibility until Forge release provides native support. This work improves deployment reliability, reproducibility, and readiness for future upgrades.

November 2024 monthly summary for lsst-control focusing on automation and hardware management. Delivered two features with tests to strengthen EL9 provisioning and USB device handling, including integration into existing roles. No major bugs reported this month; enhanced test coverage and automation improved deployment reliability and repeatability.