October 2025 monthly summary for stackhpc and Azimuth projects, focusing on reliability improvements, image handling automation, and robust lifecycle operations.

Month 2025-09 Performance Review: Focused on delivering stable, reproducible deployments, improved observability, and streamlined build pipelines across two repositories. The work emphasizes business value: fewer deployment errors, faster delivery cycles, and clearer release tracking, while showcasing strong collaboration across Ansible, Kayobe, Kolla-Ansible, and Ark-based image workflows. Key features delivered and improvements: - stackhpc/ansible-slurm-appliance: Inventory Parsing Resilience — added an empty inventory file to handle environments without a top-level inventory, eliminating parsing errors when inventory sources are absent. Commit: cbf990a8118c882af9429b3edfa290387ac45d28. - stackhpc/stackhpc-kayobe-config: Dependency pinning and stable image element versions — pinned dependencies to stable releases and aligned branches/SHAs/tags; updated image element pins to known releases and mirrored distributions. Commits: 0c77aedf..., c9734071..., e9e3213c..., 16fffda3... - stackhpc/stackhpc-kayobe-config: RadosGW Usage Exporter monitoring and alert improvements — updated exporter image to fix crashes, cleaned up Prometheus rules, and added alert for not serving metrics. Commits: 38e596da..., 82323bb8..., d3e9a828... - stackhpc/stackhpc-kayobe-config: CI and Ark-based image building enhancements — enhanced CI/build process to install docker-buildx, introduced Ark-based overcloud host image builds, and enabled new mirrors/flags; automated image build workflow. Commits: 7d1c744e..., fa5bae39..., 8d72c01e..., 53d18e85... - stackhpc/stackhpc-kayobe-config: Kayobe installation stability — version checks bypass and editable install guard to ensure standard installation. Commits: 4789c791..., 1d808154... - stackhpc/stackhpc-kayobe-config: Build system cleanup and deprecation of obsolete components — removed pulp-auth-proxy hook and IPA build elements; deleted cherry-pick bot configuration to reduce maintenance. Commits: ced3fbf1..., 39c8d781... - stackhpc/stackhpc-kayobe-config: Artifact checksum robustness for overcloud images — appended filename to artifact checksum file to improve validation. Commit: 5a2cb8df... Major bugs fixed: - Inventory parsing bug in Ansible inventory when top-level inventory is missing (stackhpc/ansible-slurm-appliance). - RadosGW Usage Exporter crash on user lookup (stackhpc/stackhpc-kayobe-config). - Regression in artifact checksums validation for overcloud images (stackhpc/stackhpc-kayobe-config). Overall impact and accomplishments: - Increased deployment reliability and predictability through inventory resilience, dependency pinning, and image element version stabilization, enabling reproducible builds across environments. - Improved system observability and incident response with updated exporter, Prometheus rule cleanup, and not-serving-metrics alerts. - Accelerated release cycles via enhanced CI, Ark-based image builds, and automated image workflows, while reducing maintenance burden by cleaning obsolete components. - Strengthened installation stability and governance with version-check bypass controls and guardrails against editable installs. Technologies and skills demonstrated: - Ansible inventory handling and resilient parsing strategies. - Kayobe/Kolla-Ansible ecosystem integration and version pinning strategies. - Ark-based image building, docker-buildx tooling, and CI pipeline automation. - Prometheus-based monitoring, alerting, and metric reliability improvements. - Artifact validation, checksum handling, and mirroring/distribution strategies. - Release engineering practices: branches, SHAs, tags, and release notes.

Monthly summary for 2025-08: Delivered storage integration and deployment documentation for stackhpc/ansible-slurm-appliance, enabling CephFS/OpenStack Manila shared filesystem support and improved onboarding for production clusters. No major bugs reported this month.

Monthly summary for 2025-07 (stackhpc/stackhpc-kayobe-config). Focused on stabilizing monitoring configuration and improving release documentation. Delivered a bug fix to prevent automatic inclusion of the Grafana external endpoint in the Prometheus Blackbox Exporter config; endpoint now added only when explicitly enabled. Commit: 2231766db0e3e2b458b3feefb73b904214867953. Release notes updated to document the fix. Impact: reduces misconfigurations and monitoring outages, strengthens operability and traceability. Technologies/skills demonstrated: configuration management, monitoring tooling (Grafana/Prometheus Blackbox Exporter), Kayobe config workflows, release engineering, documentation.

June 2025 monthly summary for stackhpc/stackhpc-kayobe-config. Delivered two major features that streamline provisioning and improve observability for object storage workloads, aligning with the updated host-image provisioning strategy and enhanced monitoring coverage. The changes reduce provisioning complexity, improve metrics reliability, and provide better changelog visibility for stakeholders.

May 2025 performance summary: Delivered deployment tagging enhancements and release-readiness improvements across multiple repositories, improved observability, and expanded developer documentation to streamline upgrades and day-to-day operations. Key outcomes include deployment image tagging enhancements, metrics accuracy fixes, and enhanced documentation/navigation across projects to support faster, safer deployments and operator empowerment.

April 2025 milestone: reliable, upgrade-ready work across stackhpc/ansible-slurm-appliance and stackhpc/stackhpc-kayobe-config. Key deliverables include Terraform vnic_types mapping fix, CUDA setup stabilization, SSH access reliability improvements on overcloud nodes, RabbitMQ queues durability tooling with upgrade prerequisites, and Prometheus v3 upgrade with image renaming and vulnerability hardening. These changes reduce deployment errors, improve GPU toolchain reliability, enhance OpenStack upgrade readiness, and strengthen security posture. Core technologies demonstrated include Terraform, Ansible, Python scripting, OpenStack tooling, RabbitMQ, Prometheus, Vault, and CUDA tooling.

March 2025 monthly summary focused on delivering business value through safer deployment operations, improved monitoring efficiency, and clearer release communications across two repositories: stackhpc/stackhpc-kayobe-config and azimuth-cloud/azimuth-config.

February 2025: Implemented upgrade readiness, reliability, and observability improvements for stackhpc-kayobe-config. Delivered upgrade documentation enhancements, compatibility notes, and release-notes fixes; updated RabbitMQ reset workflow for Oslo messaging and durable queues; addressed Horizon and Ironic image issues to improve multi-domain admin experience and cipher-suite detection; deployed OS Capacity exporter with dashboards to enhance overcloud upgrade monitoring and incident response. This work reduces operational risk during upgrades and strengthens platform stability.

January 2025 monthly summary for stackhpc-kayobe-config: Delivered targeted documentation enhancements, security posture improvements, and a reliability fix across the stack. Key initiatives included consolidating three critical docs, upgrading Wazuh integration to enable CIS checks on Rocky Linux 9, and correcting the Growroot LVM check to ensure accurate provisioning outcomes. These efforts reduce upgrade risk, strengthen compliance, and improve overall deployment reliability, delivering business value through smoother upgrades, stronger security posture, and more predictable installations.

December 2024 delivered reliability and upgrade-readiness improvements across two repositories: stackhpc-kayobe-config and kolla-ansible. Key fixes and documentation enhancements reduce operational risk, improve monitoring accuracy, and streamline OpenStack upgrade paths.

November 2024 focused on strengthening RBAC, hardening bare-metal provisioning workflows, and improving observability. Delivered granular multi-scope role management, enabled system-scoped service account capabilities for bare-metal port creation, introduced a provisioning governance policy for listing bare-metal nodes, and expanded security monitoring by deploying the Wazuh agent on the seed hypervisor. These changes improve security, operational control, and provisioning accuracy, delivering clear business value for cloud platform operations and IT governance.

October 2024 monthly summary: Focused on reliability hardening and upgrade readiness across stackhpc/kolla-ansible and stackhpc/stackhpc-kayobe-config. Key features delivered include automation of Python virtual environments via python3 -m venv for the advise venv, ensuring consistent Python interpreter usage. Major bugs fixed include: 1) Fix Etcd3gw backend URL construction when openstack_cacert is enabled; 2) Fix RabbitMQ version check by passing docker_common_options to rabbitmqctl. Documentation and process improvements include documenting the OpenSearch known issue with a workaround to re-enable allocation during 2024.1 upgrade. Overall impact: Increased deployment stability, smoother upgrade paths, and more reproducible environments, translating to reduced remediation time and more predictable release cycles. Technologies demonstrated: Ansible, Python virtual environments (venv), Docker, etcd, RabbitMQ, OpenSearch, and automation best practices.