
Rafal Fok built and maintained core infrastructure for the kyma-project, focusing on the kyma-infrastructure-manager and related repositories. He engineered robust CI/CD pipelines, end-to-end testing frameworks using Go and Ginkgo, and implemented features such as configurable Kubernetes token expiration and OIDC configuration management. Rafal upgraded dependencies, improved security posture, and streamlined release processes by integrating code coverage, automating build workflows, and enhancing documentation. His work included refactoring controller logic, consolidating access restrictions, and introducing maintenance window support, all while ensuring compliance and maintainability. Through careful configuration management and test automation, he delivered reliable, secure, and scalable backend systems.

Month 2025-10 — Focused hardening of token expiration handling in kyma-infrastructure-manager, complemented by documentation and repository hygiene improvements. Delivered configurable, pointer-based expiration handling with default boundaries (30-90 days), relocated validation, updated constants, and comprehensive tests, along with user-facing configuration docs. Also enhanced project docs for token expiration configuration and updated repository hygiene (docs formatting, .gitignore for generated E2E configs). These changes reduce operational risk, improve security posture, and streamline onboarding and maintenance for operators and developers.
Month 2025-10 — Focused hardening of token expiration handling in kyma-infrastructure-manager, complemented by documentation and repository hygiene improvements. Delivered configurable, pointer-based expiration handling with default boundaries (30-90 days), relocated validation, updated constants, and comprehensive tests, along with user-facing configuration docs. Also enhanced project docs for token expiration configuration and updated repository hygiene (docs formatting, .gitignore for generated E2E configs). These changes reduce operational risk, improve security posture, and streamline onboarding and maintenance for operators and developers.
Month: 2025-09 – kyma-infrastructure-manager: Delivered a reinforced end-to-end testing framework and configurable Kubernetes API token expiration, driving reliability, security, and faster feedback for deployment workflows. E2E improvements consolidated and hardened the testing harness with dynamic runtime names, unified Makefile targets, standardized test commands, and pre-test K3d setup, along with cluster name normalization and in-test Kubernetes version logging. Token expiration configurability via extender and config was added with accompanying unit tests. These changes reduce test flakiness, prevent misconfigurations in CI, and strengthen the security posture of the infrastructure manager.
Month: 2025-09 – kyma-infrastructure-manager: Delivered a reinforced end-to-end testing framework and configurable Kubernetes API token expiration, driving reliability, security, and faster feedback for deployment workflows. E2E improvements consolidated and hardened the testing harness with dynamic runtime names, unified Makefile targets, standardized test commands, and pre-test K3d setup, along with cluster name normalization and in-test Kubernetes version logging. Token expiration configurability via extender and config was added with accompanying unit tests. These changes reduce test flakiness, prevent misconfigurations in CI, and strengthen the security posture of the infrastructure manager.
Monthly summary for 2025-08 across kyma-project/kyma-infrastructure-manager and kyma-project/application-connector-manager. Key outcomes: 1) Features delivered across two repos including documentation enhancements for Kyma Infrastructure Manager, E2E testing/CI improvements, Go 1.25 upgrade, dependency updates, and release tagging alignment. 2) Major bugs fixed: rollback of security scanning image pinning due to issues, preventing deployment instability. 3) Impact: improved security alignment, reliability of CI/test pipelines, clearer deployment guidance, and tighter release governance. 4) Technologies/skills demonstrated: Go 1.25, Docker, Helm, Makefile/CI enhancements, golangci-lint/controller-tools upgrades, kubectl diagnostics, and cross-repo release management.
Monthly summary for 2025-08 across kyma-project/kyma-infrastructure-manager and kyma-project/application-connector-manager. Key outcomes: 1) Features delivered across two repos including documentation enhancements for Kyma Infrastructure Manager, E2E testing/CI improvements, Go 1.25 upgrade, dependency updates, and release tagging alignment. 2) Major bugs fixed: rollback of security scanning image pinning due to issues, preventing deployment instability. 3) Impact: improved security alignment, reliability of CI/test pipelines, clearer deployment guidance, and tighter release governance. 4) Technologies/skills demonstrated: Go 1.25, Docker, Helm, Makefile/CI enhancements, golangci-lint/controller-tools upgrades, kubectl diagnostics, and cross-repo release management.
July 2025: Kyma Infrastructure Manager — Delivered an End-to-End Testing Framework using Ginkgo with supporting infrastructure to exercise Gardener Shoots lifecycle in CI. The framework provisions clusters, builds/loads images, and installs dependencies (CertManager, Prometheus). Added tests for creating, updating, and deleting Gardener Shoots based on Runtime CRs. This work enhances release quality, provides reliable regression coverage, and sets the foundation for automated CI validation.
July 2025: Kyma Infrastructure Manager — Delivered an End-to-End Testing Framework using Ginkgo with supporting infrastructure to exercise Gardener Shoots lifecycle in CI. The framework provisions clusters, builds/loads images, and installs dependencies (CertManager, Prometheus). Added tests for creating, updating, and deleting Gardener Shoots based on Runtime CRs. This work enhances release quality, provides reliable regression coverage, and sets the foundation for automated CI validation.
June 2025 monthly summary: Delivered targeted features and reliability improvements across kyma-infrastructure-manager, kim-snatch, and application-connector-manager with emphasis on security, maintainability, and faster release cycles. Key outcomes include an OIDC configuration overhaul with state-tracking, nuanced handling of missing vs. empty fields, defaulting, and validation improvements, supported by added unit tests and test cleanup; Go toolchain upgrades across CI and codebases to strengthen security posture and stability; dependency hygiene updates (OAuth2) and go mod housekeeping in application-connector-manager; and a streamlined security scanners deployment tag strategy to simplify deployments while preserving release readiness. Overall, these changes reduced risk, improved build reliability, and enabled quicker, safer feature delivery to production.
June 2025 monthly summary: Delivered targeted features and reliability improvements across kyma-infrastructure-manager, kim-snatch, and application-connector-manager with emphasis on security, maintainability, and faster release cycles. Key outcomes include an OIDC configuration overhaul with state-tracking, nuanced handling of missing vs. empty fields, defaulting, and validation improvements, supported by added unit tests and test cleanup; Go toolchain upgrades across CI and codebases to strengthen security posture and stability; dependency hygiene updates (OAuth2) and go mod housekeeping in application-connector-manager; and a streamlined security scanners deployment tag strategy to simplify deployments while preserving release readiness. Overall, these changes reduced risk, improved build reliability, and enabled quicker, safer feature delivery to production.
May 2025 Monthly Summary for kyma-project/kyma-infrastructure-manager focused on CI/CD stabilization and code-quality automation. Delivered a consolidated CI code coverage integration and workflow improvements. This included enabling the code coverage reporting in CI, enabling the coverage job on Pull Requests, transitioning CI to pull_request_target, ensuring PR head checkout, and performing related workflow cleanups to achieve stable, reliable coverage reporting. The work also involved several commits to fine-tune the workflow (e.g., enabling coverage job, switching to pull_request_target, explicit PR edited code checkout, and whitespace alignment/cleanup). Major bugs fixed: No explicit critical bugs reported this month; the emphasis was on stabilizing CI/CD workflows and improving coverage reporting reliability. Overall impact: Higher quality feedback loop for PRs, better visibility into test coverage, and reduced CI flakiness. This accelerates secure and stable releases by catching coverage gaps earlier and ensuring consistent coverage data across PRs. Technologies/skills demonstrated: GitHub Actions workflow orchestration, pull_request_target strategy, precise PR checkout handling, code coverage tooling integration, and iterative workflow cleanup.
May 2025 Monthly Summary for kyma-project/kyma-infrastructure-manager focused on CI/CD stabilization and code-quality automation. Delivered a consolidated CI code coverage integration and workflow improvements. This included enabling the code coverage reporting in CI, enabling the coverage job on Pull Requests, transitioning CI to pull_request_target, ensuring PR head checkout, and performing related workflow cleanups to achieve stable, reliable coverage reporting. The work also involved several commits to fine-tune the workflow (e.g., enabling coverage job, switching to pull_request_target, explicit PR edited code checkout, and whitespace alignment/cleanup). Major bugs fixed: No explicit critical bugs reported this month; the emphasis was on stabilizing CI/CD workflows and improving coverage reporting reliability. Overall impact: Higher quality feedback loop for PRs, better visibility into test coverage, and reduced CI flakiness. This accelerates secure and stable releases by catching coverage gaps earlier and ensuring consistent coverage data across PRs. Technologies/skills demonstrated: GitHub Actions workflow orchestration, pull_request_target strategy, precise PR checkout handling, code coverage tooling integration, and iterative workflow cleanup.
March 2025 highlights for kyma-infrastructure-manager: Implemented Runtime Provisioning Status Tracking and Centralized EU Access Restrictions, delivering tangible business value through improved provisioning visibility, accuracy, and regulatory-compliance readiness. The work enhances operational reliability by aligning CR status with controller state transitions and consolidating access restriction logic into a dedicated package, reducing maintenance burden and risk of regression. Technologies demonstrated include Go, Kubernetes CRDs and controller-runtime patterns, and modular package design.
March 2025 highlights for kyma-infrastructure-manager: Implemented Runtime Provisioning Status Tracking and Centralized EU Access Restrictions, delivering tangible business value through improved provisioning visibility, accuracy, and regulatory-compliance readiness. The work enhances operational reliability by aligning CR status with controller state transitions and consolidating access restriction logic into a dedicated package, reducing maintenance burden and risk of regression. Technologies demonstrated include Go, Kubernetes CRDs and controller-runtime patterns, and modular package design.
February 2025 monthly summary for kyma-project repositories. Delivered security-aligned upgrades and reliability improvements across kim-snatch and infrastructure-manager, with an emphasis on business value and maintainability. Key deliverables include upgraded kim-snatch Docker images (0.0.7/0.0.8) to improve security scanning, removal of the default metrics endpoint and related kustomize patches to reduce surface area and configuration complexity, and the introduction of configurable MaintenanceTimeWindow for production shoots. Additional improvements include end-to-end test reliability enhancements, code cleanup removing unused service account token generation, and naming consistency across configs (snatch renamed to kim-snatch). Infrastructure work also introduced maintenance window support utilities and comprehensive code cleanup to support the feature. Overall, these efforts reduce risk, improve deployment consistency, and enable safer, predictable maintenance operations.
February 2025 monthly summary for kyma-project repositories. Delivered security-aligned upgrades and reliability improvements across kim-snatch and infrastructure-manager, with an emphasis on business value and maintainability. Key deliverables include upgraded kim-snatch Docker images (0.0.7/0.0.8) to improve security scanning, removal of the default metrics endpoint and related kustomize patches to reduce surface area and configuration complexity, and the introduction of configurable MaintenanceTimeWindow for production shoots. Additional improvements include end-to-end test reliability enhancements, code cleanup removing unused service account token generation, and naming consistency across configs (snatch renamed to kim-snatch). Infrastructure work also introduced maintenance window support utilities and comprehensive code cleanup to support the feature. Overall, these efforts reduce risk, improve deployment consistency, and enable safer, predictable maintenance operations.
Concise monthly summary for 2025-01 focused on delivering governance-driven CI enhancements, stabilizing builds, improving code quality, and advancing observability for kim-snatch. Highlights include CI workflow enhancements with Dependabot and vulnerability checks, link checking, and testing scaffolding; fixes to GitHub Actions after repository rename; build and dependency reliability improvements; linting and code-quality hygiene; metrics instrumentation; and codebase/local-environment cleanups that streamline development and reduce risk.
Concise monthly summary for 2025-01 focused on delivering governance-driven CI enhancements, stabilizing builds, improving code quality, and advancing observability for kim-snatch. Highlights include CI workflow enhancements with Dependabot and vulnerability checks, link checking, and testing scaffolding; fixes to GitHub Actions after repository rename; build and dependency reliability improvements; linting and code-quality hygiene; metrics instrumentation; and codebase/local-environment cleanups that streamline development and reduce risk.
November 2024 monthly summary: Licensing compliance modernization and RBAC evaluation across two Kyma repos, with code quality improvements, delivering stronger licensing hygiene, improved security posture, and maintainable code with clear business value.
November 2024 monthly summary: Licensing compliance modernization and RBAC evaluation across two Kyma repos, with code quality improvements, delivering stronger licensing hygiene, improved security posture, and maintainable code with clear business value.
Overview of all repositories you've contributed to across your timeline