
Benjamin Schimke engineered robust Kubernetes infrastructure and automation solutions in the canonical/k8s-snap repository, focusing on cluster lifecycle management, CI/CD reliability, and security compliance. He developed upgrade frameworks, enhanced node removal processes, and expanded integration testing to cover complex multi-node scenarios. Leveraging Go and Python, Benjamin implemented Helm value sanitization, AppArmor policy tuning, and cross-architecture validation, ensuring stable deployments and secure operations. His work included FIPS compliance, STIG integration, and detailed documentation updates, addressing both operational risk and developer experience. The depth of his contributions reflects a comprehensive approach to backend development, system administration, and continuous delivery in production environments.

October 2025 monthly summary for canonical/k8s-snap focusing on business value and technical achievements.
October 2025 monthly summary for canonical/k8s-snap focusing on business value and technical achievements.
September 2025 summary for canonical/microk8s and canonical/k8s-snap. Delivered security and CI improvements with practical, measurable outcomes. Key features delivered include Configurable End-to-End Test Runners and Re-enable CNCF Conformance Weekly Test in CI. Major bugs fixed include AppArmor denials for Kubernetes workloads (cri-containerd socket allowances) and restoration of CNCF conformance testing in CI after compatibility issues. Overall impact: stronger security posture, more efficient CI, and reliable conformance validation, enabling faster, safer releases. Technologies demonstrated: AppArmor policy tuning, cri-containerd integration, GitHub Actions CI optimization, and CNCF conformance workflows.
September 2025 summary for canonical/microk8s and canonical/k8s-snap. Delivered security and CI improvements with practical, measurable outcomes. Key features delivered include Configurable End-to-End Test Runners and Re-enable CNCF Conformance Weekly Test in CI. Major bugs fixed include AppArmor denials for Kubernetes workloads (cri-containerd socket allowances) and restoration of CNCF conformance testing in CI after compatibility issues. Overall impact: stronger security posture, more efficient CI, and reliable conformance validation, enabling faster, safer releases. Technologies demonstrated: AppArmor policy tuning, cri-containerd integration, GitHub Actions CI optimization, and CNCF conformance workflows.
Month: 2025-08 — Canonical/k8s-snap delivered major testing, CI security, and documentation improvements that enhance reliability, security posture, and developer velocity for Kubernetes deployments. Work focused on stabilizing the test harness, enabling STIG-compliant CI, and updating Kubernetes datastore documentation.
Month: 2025-08 — Canonical/k8s-snap delivered major testing, CI security, and documentation improvements that enhance reliability, security posture, and developer velocity for Kubernetes deployments. Work focused on stabilizing the test harness, enabling STIG-compliant CI, and updating Kubernetes datastore documentation.
July 2025 monthly summary emphasizing delivery of concrete features, stability improvements, and stronger testing/CI while maintaining a focus on business value and user impact. Delivered targeted documentation accuracy, secure and maintainable builds, and more reliable release pipelines across two canonical repositories.
July 2025 monthly summary emphasizing delivery of concrete features, stability improvements, and stronger testing/CI while maintaining a focus on business value and user impact. Delivered targeted documentation accuracy, secure and maintainable builds, and more reliable release pipelines across two canonical repositories.
June 2025 monthly summary for canonical/k8s-snap: - Delivered key performance, security, and reliability initiatives across the repo, with expanded test coverage, improved deployment reliability, and enhanced developer experience. - Focused on performance visibility, security/compliance readiness (FIPS), cross-architecture validation, and robust environment management to strengthen production readiness and reduce risk.
June 2025 monthly summary for canonical/k8s-snap: - Delivered key performance, security, and reliability initiatives across the repo, with expanded test coverage, improved deployment reliability, and enhanced developer experience. - Focused on performance visibility, security/compliance readiness (FIPS), cross-architecture validation, and robust environment management to strengthen production readiness and reduce risk.
In May 2025, canonical/k8s-snap delivered a focused set of CI/CD and documentation improvements aimed at improving reliability, speed, and release readiness for the 1.33 branch. The work stabilized the testing pipeline, improved automation, and clarified how refresh-certs behave in alignment with upstream Kubernetes, enabling faster feedback and smoother backporting and releases.
In May 2025, canonical/k8s-snap delivered a focused set of CI/CD and documentation improvements aimed at improving reliability, speed, and release readiness for the 1.33 branch. The work stabilized the testing pipeline, improved automation, and clarified how refresh-certs behave in alignment with upstream Kubernetes, enabling faster feedback and smoother backporting and releases.
April 2025: Upgraded upgrade lifecycle reliability across canonical/k8s-snap and canonical/cluster-api-k8s with a new centralized framework and robust testing, delivering business value through non-blocking upgrades, improved governance, and faster recovery from failures.
April 2025: Upgraded upgrade lifecycle reliability across canonical/k8s-snap and canonical/cluster-api-k8s with a new centralized framework and robust testing, delivering business value through non-blocking upgrades, improved governance, and faster recovery from failures.
March 2025 was focused on extending test coverage, hardening upgrade paths, and improving release governance across three repositories. Key features include Ceph integration tests in the k8s-operator nightly CI (GitHub Actions matrix, Terraform deployment tweaks, new Ceph manifest, and environment handling refactor). In k8s-snap, airgapped CK8s testing framework with isolation broadened test coverage for proxy-internet and private registry scenarios, along with reliable upgrade hooks for k8sd. Additional CI improvements added Mattermost notifications, stricter nightly criteria, robust test-result handling, and stabilization of TICS workflows for better visibility. For cluster-api-k8s, 0.4 release versioning and metadata alignment were completed. These efforts collectively increased test coverage and reliability, reduced flaky behavior in upgrades, and improved release traceability, delivering measurable business value by accelerating feedback cycles, reducing risk in upgrades, and improving release quality. Technologies demonstrated include GitHub Actions, Terraform, Ceph deployment tooling, CK8s, LXD, xdelta3, and Mattermost CI integrations.
March 2025 was focused on extending test coverage, hardening upgrade paths, and improving release governance across three repositories. Key features include Ceph integration tests in the k8s-operator nightly CI (GitHub Actions matrix, Terraform deployment tweaks, new Ceph manifest, and environment handling refactor). In k8s-snap, airgapped CK8s testing framework with isolation broadened test coverage for proxy-internet and private registry scenarios, along with reliable upgrade hooks for k8sd. Additional CI improvements added Mattermost notifications, stricter nightly criteria, robust test-result handling, and stabilization of TICS workflows for better visibility. For cluster-api-k8s, 0.4 release versioning and metadata alignment were completed. These efforts collectively increased test coverage and reliability, reduced flaky behavior in upgrades, and improved release traceability, delivering measurable business value by accelerating feedback cycles, reducing risk in upgrades, and improving release quality. Technologies demonstrated include GitHub Actions, Terraform, Ceph deployment tooling, CK8s, LXD, xdelta3, and Mattermost CI integrations.
February 2025 focused on stabilizing release pipelines, simplifying configuration checks, and improving test visibility across the Canonical Kubernetes Snap projects. Delivered targeted features and fixes that reduce operational risk, accelerate feedback, and enable more reliable deployments in Kubernetes Snap environments. Demonstrated proficiency in Kubernetes operations, CI/CD automation, and infrastructure-as-code practices.
February 2025 focused on stabilizing release pipelines, simplifying configuration checks, and improving test visibility across the Canonical Kubernetes Snap projects. Delivered targeted features and fixes that reduce operational risk, accelerate feedback, and enable more reliable deployments in Kubernetes Snap environments. Demonstrated proficiency in Kubernetes operations, CI/CD automation, and infrastructure-as-code practices.
January 2025 performance summary: Delivered substantive feature work and reliability improvements across canonical/k8s-snap and canonical/cluster-api-k8s, prioritizing documentation, test infrastructure, and networking configurability to accelerate developer onboarding and reduce release risk.
January 2025 performance summary: Delivered substantive feature work and reliability improvements across canonical/k8s-snap and canonical/cluster-api-k8s, prioritizing documentation, test infrastructure, and networking configurability to accelerate developer onboarding and reduce release risk.
December 2024 monthly highlights for canonical/k8s-snap focused on reliability, compatibility, and automation. Key features and fixes delivered improved deployment stability, enhanced test resilience, and prepared the project for 1.32 release readiness. Highlights include a CLI input validation improvement, fixes to test setup for snap installation by revision, Kubernetes snap v1.32 upgrade with compatibility adjustments, release automation updates to target current branches, and a YAML fix enabling dual-stack deployments. Overall, these efforts reduce production risk, accelerate release cycles, and strengthen the go-to-market reliability of the k8s-snap project.
December 2024 monthly highlights for canonical/k8s-snap focused on reliability, compatibility, and automation. Key features and fixes delivered improved deployment stability, enhanced test resilience, and prepared the project for 1.32 release readiness. Highlights include a CLI input validation improvement, fixes to test setup for snap installation by revision, Kubernetes snap v1.32 upgrade with compatibility adjustments, release automation updates to target current branches, and a YAML fix enabling dual-stack deployments. Overall, these efforts reduce production risk, accelerate release cycles, and strengthen the go-to-market reliability of the k8s-snap project.
November 2024: Delivered security-hardening, runtime improvements, and operator configuration enhancements across canonical/k8s-snap and canonical/k8s-operator. Key outcomes include enforcing TLS minimum version 1.2 across core Kubernetes components, applying Kubernetes 1.32 runtime patches for improved node config access and kubelet registration, upgrading critical images to current versions, fixing SBOM generation to ensure accurate build outputs, and strengthening CI/CD/test infrastructure. Operator charm updates added local storage configuration and gateway control, while a DNS config naming fix aligned user-facing parameters with code. These changes reduce security risk, increase deployment reliability, and accelerate time-to-value for customers.
November 2024: Delivered security-hardening, runtime improvements, and operator configuration enhancements across canonical/k8s-snap and canonical/k8s-operator. Key outcomes include enforcing TLS minimum version 1.2 across core Kubernetes components, applying Kubernetes 1.32 runtime patches for improved node config access and kubelet registration, upgrading critical images to current versions, fixing SBOM generation to ensure accurate build outputs, and strengthening CI/CD/test infrastructure. Operator charm updates added local storage configuration and gateway control, while a DNS config naming fix aligned user-facing parameters with code. These changes reduce security risk, increase deployment reliability, and accelerate time-to-value for customers.
Overview of all repositories you've contributed to across your timeline