
Bartosz Bezak engineered robust infrastructure automation and deployment solutions across the stackhpc/stackhpc-kayobe-config and stackhpc-release-train repositories, focusing on OpenStack, containerization, and multi-architecture support. He implemented features such as conditional IPA collector activation, multi-arch Docker image builds, and versioned Erlang repository management, using Ansible, Shell, and YAML to streamline CI/CD workflows and ensure reliable upgrades. Bartosz addressed operational challenges by refining OVN chassis priority management, enhancing security hardening, and integrating networking enhancements for Arista environments. His work demonstrated depth in configuration management and system administration, consistently reducing deployment risk and improving maintainability for complex, multi-platform cloud environments.
February 2026 monthly summary for stackhpc-release-train focusing on expanding AArch64 DOCA support and ensuring RHEL 9 repository access. Delivered repository configuration and re-added AArch64 repos in the third_party section to guarantee access to required packages for AArch64 deployments. No major bugs reported this month; changes center on compatibility, packaging, and release-train readiness.
February 2026 monthly summary for stackhpc-release-train focusing on expanding AArch64 DOCA support and ensuring RHEL 9 repository access. Delivered repository configuration and re-added AArch64 repos in the third_party section to guarantee access to required packages for AArch64 deployments. No major bugs reported this month; changes center on compatibility, packaging, and release-train readiness.
January 2026 monthly summary: Delivered targeted repo hygiene, networking enhancements, and stability fixes across StackHPC repos. The work improved release-train reliability, expanded networking capabilities for Arista environments, and extended architecture support for containerized components, aligning with NGS strategy and broader deployment needs.
January 2026 monthly summary: Delivered targeted repo hygiene, networking enhancements, and stability fixes across StackHPC repos. The work improved release-train reliability, expanded networking capabilities for Arista environments, and extended architecture support for containerized components, aligning with NGS strategy and broader deployment needs.
In December 2025, delivered targeted improvements across stackhpc-kayobe-config and azimuth to strengthen security hardening, improve federation session handling, and reduce operational risk. Key contributions include a robust CIS hardening update that only processes existing service accounts on non-Kolla hosts, and a configurable SameSite cookie option for federated OIDC session management, enhancing cross-domain persistence and reliability.
In December 2025, delivered targeted improvements across stackhpc-kayobe-config and azimuth to strengthen security hardening, improve federation session handling, and reduce operational risk. Key contributions include a robust CIS hardening update that only processes existing service accounts on non-Kolla hosts, and a configurable SameSite cookie option for federated OIDC session management, enhancing cross-domain persistence and reliability.
November 2025: Delivered three changes in stackhpc/stackhpc-kayobe-config: two bug fixes and a feature update. Key outcomes: improved operational reliability by ensuring only the true OVN leader executes priority alignment, corrected install playbook behavior for non-check runs, and enabled Tentacle support through the Cephadm Ansible collection update. These changes enhance deployment stability, reduce manual intervention, and prepare the stack for expanded orchestration.
November 2025: Delivered three changes in stackhpc/stackhpc-kayobe-config: two bug fixes and a feature update. Key outcomes: improved operational reliability by ensuring only the true OVN leader executes priority alignment, corrected install playbook behavior for non-check runs, and enabled Tentacle support through the Cephadm Ansible collection update. These changes enhance deployment stability, reduce manual intervention, and prepare the stack for expanded orchestration.
October 2025 monthly summary for stackhpc/stackhpc-kayobe-config focusing on features delivered, bugs fixed, and impact. Delivered OVN chassis priority management improvements, safer update workflow, and more robust chassis prefix parsing. Fixed gateway chassis prefix stripping to align priorities with active gateway chassis. Demonstrated strong automation skills in Ansible playbooks and shell scripting, improving reliability across diverse OVN configurations.
October 2025 monthly summary for stackhpc/stackhpc-kayobe-config focusing on features delivered, bugs fixed, and impact. Delivered OVN chassis priority management improvements, safer update workflow, and more robust chassis prefix parsing. Fixed gateway chassis prefix stripping to align priorities with active gateway chassis. Demonstrated strong automation skills in Ansible playbooks and shell scripting, improving reliability across diverse OVN configurations.
September 2025 monthly summary focusing on delivering business value through versioned Erlang repository management and cross-environment RabbitMQ image compatibility, with a clear alignment to upstream Kolla updates and improved build reliability across architectures.
September 2025 monthly summary focusing on delivering business value through versioned Erlang repository management and cross-environment RabbitMQ image compatibility, with a clear alignment to upstream Kolla updates and improved build reliability across architectures.
July 2025 monthly summary focusing on key accomplishments, major fixes, and business value across two StackHPC repositories. Deliverables include: (1) Erlang packaging reliability on RHEL 9 arm64 by updating the repository URL to the RHEL base, resolving a CentOS Stream 9 divergence and missing libcrypto.so.3 dependency; (2) reintroduction and integration of the epoxy OpenStack repo for CentOS Stream 9 with updated build configuration and selective package exclusions to ensure clean integration; (3) multi-architecture container support for Rocky Linux 9, adding aarch64 builds, updating the GitHub Actions matrix, and introducing a manifest creation/push script to allow a single image tag across x86_64 and aarch64. These efforts broaden platform coverage, reduce deployment failures, and streamline CI/CD for multi-arch deployments.
July 2025 monthly summary focusing on key accomplishments, major fixes, and business value across two StackHPC repositories. Deliverables include: (1) Erlang packaging reliability on RHEL 9 arm64 by updating the repository URL to the RHEL base, resolving a CentOS Stream 9 divergence and missing libcrypto.so.3 dependency; (2) reintroduction and integration of the epoxy OpenStack repo for CentOS Stream 9 with updated build configuration and selective package exclusions to ensure clean integration; (3) multi-architecture container support for Rocky Linux 9, adding aarch64 builds, updating the GitHub Actions matrix, and introducing a manifest creation/push script to allow a single image tag across x86_64 and aarch64. These efforts broaden platform coverage, reduce deployment failures, and streamline CI/CD for multi-arch deployments.
May 2025 monthly summary for stackhpc-kayobe-config. Focused on updating Kolla image tags for OVS/OVN and related components, packaging improvements, and release documentation. Delivered updated container image tags for Kolla services (Toolbox, Manila, Neutron, Nova, Octavia, Openvswitch, OVN) to newer versions compatible with Rocky Linux 9 and Ubuntu Noble. Updated Openvswitch Pulp repository version on CentOS Stream 9. Added a release note detailing the OVS/OVN updates and their inclusion in the relevant container images. All changes captured in a single change set.
May 2025 monthly summary for stackhpc-kayobe-config. Focused on updating Kolla image tags for OVS/OVN and related components, packaging improvements, and release documentation. Delivered updated container image tags for Kolla services (Toolbox, Manila, Neutron, Nova, Octavia, Openvswitch, OVN) to newer versions compatible with Rocky Linux 9 and Ubuntu Noble. Updated Openvswitch Pulp repository version on CentOS Stream 9. Added a release note detailing the OVS/OVN updates and their inclusion in the relevant container images. All changes captured in a single change set.
February 2025 monthly summary: Delivered critical stability and reliability improvements across the stack, including a Glance source repositories configuration bug fix in the release train and Caracal-related release enhancements in Kayobe config. These changes reduce outage risk, improve Neutron L3 HA behavior, and streamline the release process across OpenStack components. Also improved release notes formatting to ensure accurate changelog links.
February 2025 monthly summary: Delivered critical stability and reliability improvements across the stack, including a Glance source repositories configuration bug fix in the release train and Caracal-related release enhancements in Kayobe config. These changes reduce outage risk, improve Neutron L3 HA behavior, and streamline the release process across OpenStack components. Also improved release notes formatting to ensure accurate changelog links.
December 2024 monthly summary for stackhpc/stackhpc-kayobe-config: Implemented Conditional IPA Collectors Activation to ensure IPA-related collectors (dmi-decode, extra-hardware, numa-topology) run only during IPA image builds. This optimization reduces needless execution during non-build phases, lowering runtime and resource usage while preserving build integrity. No major bugs fixed this month; existing CI guarantees stability with the new conditional path. Overall impact: faster, more predictable image builds and reduced CI load, enabling teams to iterate on IPA-related features more quickly. Technologies/skills demonstrated include Python-based build orchestration, feature flag/conditional execution, and CI/CD workflow integration.
December 2024 monthly summary for stackhpc/stackhpc-kayobe-config: Implemented Conditional IPA Collectors Activation to ensure IPA-related collectors (dmi-decode, extra-hardware, numa-topology) run only during IPA image builds. This optimization reduces needless execution during non-build phases, lowering runtime and resource usage while preserving build integrity. No major bugs fixed this month; existing CI guarantees stability with the new conditional path. Overall impact: faster, more predictable image builds and reduced CI load, enabling teams to iterate on IPA-related features more quickly. Technologies/skills demonstrated include Python-based build orchestration, feature flag/conditional execution, and CI/CD workflow integration.
November 2024 monthly summary for the stackhpc/kolla-ansible project focusing on deployment configuration alignment with the OpenStack 2024.1 release.
November 2024 monthly summary for the stackhpc/kolla-ansible project focusing on deployment configuration alignment with the OpenStack 2024.1 release.

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