derailed/k9s
Nov 2024 – Oct 2025
9 Months active
Languages Used
GoMakefileMarkdownShellYAMLDockerfile
Technical Skills
Bug FixingCI/CDCLI DevelopmentDependency ManagementGo DevelopmentKubernetes
derailed
PROFILE
Derailed
Fernand Galiana contributed to the derailed/k9s repository by delivering a steady stream of features and stability improvements focused on Kubernetes cluster management. Over nine months, Fernand enhanced the CLI experience with custom views, GPU visibility, and Namespace Warp navigation, while addressing critical bugs in resource handling and UI responsiveness. Using Go, YAML, and shell scripting, Fernand implemented performance optimizations, plugin refactors, and multi-architecture build support. The work emphasized maintainability through code refactoring, robust error handling, and CI/CD automation. These efforts improved operator workflows, reduced troubleshooting time, and ensured k9s remained reliable and adaptable for evolving Kubernetes environments.
Overall Statistics
Feature vs Bugs
56%Features
Repository Contributions
45Total
Bugs
14
Commits
45
Features
18
Lines of code
31,548
Activity Months9
Your Network
66 people
Work History
October 2025
4 Commits • 2 Features
Oct 1, 2025October 2025: Delivered key UX and navigation enhancements for derailed/k9s, including the Namespace Warp feature, aligned with release hygiene through version bumps and changelog updates. Implemented targeted bug fixes to improve command interpretation, resource viewing, suggestions, xray, and YAML output, and reverted enter command behavior to restore expected command buffer semantics. Prepared releases v0.50.15 and v0.50.16 to reflect these changes and document the changes for users. Resulting improvements reduce navigation time, enhance reliability, and improve overall user productivity in cluster management.
4 Commits • 2 Features
Oct 1, 2025October 2025: Delivered key UX and navigation enhancements for derailed/k9s, including the Namespace Warp feature, aligned with release hygiene through version bumps and changelog updates. Implemented targeted bug fixes to improve command interpretation, resource viewing, suggestions, xray, and YAML output, and reverted enter command behavior to restore expected command buffer semantics. Prepared releases v0.50.15 and v0.50.16 to reflect these changes and document the changes for users. Resulting improvements reduce navigation time, enhance reliability, and improve overall user productivity in cluster management.
October 2025
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for derailed/k9s: Delivered a K9s v0.50.x release series with targeted CLI UX enhancements, parsing and filtering improvements, and notable performance optimizations. Implemented a cohesive set of release commits that tightened stability and correctness across resource views, RBAC handling, deployment restarts, secret abbreviations, pod execution, labeling, managed fields, and pod logs. These changes reduced CPU usage under typical interactive workloads, improved reliability in troubleshooting scenarios, and accelerated incident response through clearer, faster resource views. Prepared the project for broader hardware support and smoother production adoption, reinforcing business value through faster, more accurate Kubernetes observations and workflows.
September 2025
4 Commits • 1 Features
Sep 1, 2025September 2025 monthly summary for derailed/k9s: Delivered a K9s v0.50.x release series with targeted CLI UX enhancements, parsing and filtering improvements, and notable performance optimizations. Implemented a cohesive set of release commits that tightened stability and correctness across resource views, RBAC handling, deployment restarts, secret abbreviations, pod execution, labeling, managed fields, and pod logs. These changes reduced CPU usage under typical interactive workloads, improved reliability in troubleshooting scenarios, and accelerated incident response through clearer, faster resource views. Prepared the project for broader hardware support and smoother production adoption, reinforcing business value through faster, more accurate Kubernetes observations and workflows.
July 2025
7 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for derailed/k9s focused on visibility, reliability, and build hygiene. Delivered GPU visibility enhancements across node, pod, and container views; improved pod health monitoring responsiveness and accuracy; stabilized namespace operations and alias handling; updated release configuration, dependencies, and cross-platform build targets including FreeBSD with updated Go modules. These changes reduce toil for operators, improve scheduling and debugging workflows, and ensure the project remains maintainable and compatible with current tooling.
7 Commits • 1 Features
Jul 1, 2025July 2025 monthly summary for derailed/k9s focused on visibility, reliability, and build hygiene. Delivered GPU visibility enhancements across node, pod, and container views; improved pod health monitoring responsiveness and accuracy; stabilized namespace operations and alias handling; updated release configuration, dependencies, and cross-platform build targets including FreeBSD with updated Go modules. These changes reduce toil for operators, improve scheduling and debugging workflows, and ensure the project remains maintainable and compatible with current tooling.
July 2025
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 Performance Summary for derailed/k9s. Delivered two targeted releases focused on reliability, observability, and scalability. v0.50.5 addressed critical bugs and UI polish (port-forwarding notifications, event time column sorting, label selector faults, and pod initialization counts) with UI pulse view enhancements and multi-architecture build support. v0.50.6 added EndpointSlices support and a new monitoring resource type, along with dependency updates and release notes. This work improves cluster operability, reduces incident response time, and expands platform coverage across architectures.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 Performance Summary for derailed/k9s. Delivered two targeted releases focused on reliability, observability, and scalability. v0.50.5 addressed critical bugs and UI polish (port-forwarding notifications, event time column sorting, label selector faults, and pod initialization counts) with UI pulse view enhancements and multi-architecture build support. v0.50.6 added EndpointSlices support and a new monitoring resource type, along with dependency updates and release notes. This work improves cluster operability, reduces incident response time, and expands platform coverage across architectures.
April 2025
6 Commits • 2 Features
Apr 1, 2025April 2025 (derailed/k9s): Delivered a robust v0.50.x release stream focused on performance, stability, and UX enhancements. Key releases include v0.50.0 with performance improvements, code cleanup, dependency updates, CI workflow refinements, lint improvements, and a new JQ-like custom view filtering for improved navigation. Value delivered: faster resource discovery and a more flexible UI. Hotfix cycle followed with v0.50.1 stabilizing crashes, runtime errors, and display inaccuracies (commit e55083ba271eed6fc4014674890f70c5ed6c70e0). Subsequent fixes hardened user experience across views: v0.50.2 addressed alias resolution, YAML view crashes for pods, storage class operations, and added a clear “no data” flash message (commit 142282b584bdf5f579e4571703defb3a18e535f2); v0.50.3 covered custom column parsing, shell argument handling, plus linter/code cleanup (commit bc22b8705304b86c2f4c417a088accdfed13fdf8). README updated Slack invite URL to reflect current community access (commit 9f37a641ea6d094a94b89cca3075f5bb1657bd16). The series continued with v0.50.4 enhancements including configurable API server timeout, improved namespace override handling, and a Flux restart option, alongside fixes to deployment status, custom view filters, and match expressions (commit e4e38161857a202f09488c7ab3603a27de464ad4).
6 Commits • 2 Features
Apr 1, 2025April 2025 (derailed/k9s): Delivered a robust v0.50.x release stream focused on performance, stability, and UX enhancements. Key releases include v0.50.0 with performance improvements, code cleanup, dependency updates, CI workflow refinements, lint improvements, and a new JQ-like custom view filtering for improved navigation. Value delivered: faster resource discovery and a more flexible UI. Hotfix cycle followed with v0.50.1 stabilizing crashes, runtime errors, and display inaccuracies (commit e55083ba271eed6fc4014674890f70c5ed6c70e0). Subsequent fixes hardened user experience across views: v0.50.2 addressed alias resolution, YAML view crashes for pods, storage class operations, and added a clear “no data” flash message (commit 142282b584bdf5f579e4571703defb3a18e535f2); v0.50.3 covered custom column parsing, shell argument handling, plus linter/code cleanup (commit bc22b8705304b86c2f4c417a088accdfed13fdf8). README updated Slack invite URL to reflect current community access (commit 9f37a641ea6d094a94b89cca3075f5bb1657bd16). The series continued with v0.50.4 enhancements including configurable API server timeout, improved namespace override handling, and a Flux restart option, alongside fixes to deployment status, custom view filters, and match expressions (commit e4e38161857a202f09488c7ab3603a27de464ad4).
April 2025
March 2025
12 Commits • 8 Features
Mar 1, 2025March 2025 — Derailed/k9s delivered a coordinated release cadence (v0.40.6–v0.40.11) that enhanced observability, configurability, and plugin reliability. Key features include: logging integrations (slog/bunyan), YAML v3 support with view aliases, custom columns, and UI/resource display improvements; plugin refactor and loading fixes; and workflow upgrades for CI, automation, and maintenance. The work decreased plugin-related failures, improved resource clarity with GVR in table titles, and strengthened code quality, documentation, and governance. Technologies demonstrated include Go tooling (linting, tests), YAML parsing, advanced logging, and GitHub Actions automation.
March 2025
12 Commits • 8 Features
Mar 1, 2025March 2025 — Derailed/k9s delivered a coordinated release cadence (v0.40.6–v0.40.11) that enhanced observability, configurability, and plugin reliability. Key features include: logging integrations (slog/bunyan), YAML v3 support with view aliases, custom columns, and UI/resource display improvements; plugin refactor and loading fixes; and workflow upgrades for CI, automation, and maintenance. The work decreased plugin-related failures, improved resource clarity with GVR in table titles, and strengthened code quality, documentation, and governance. Technologies demonstrated include Go tooling (linting, tests), YAML parsing, advanced logging, and GitHub Actions automation.
February 2025
7 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for derailed/k9s: Key feature delivery and stability improvements across the 0.40.x line. Custom Views Enhancements introduced user-configurable columns via views.yaml using JSONPath, enabling tailored data views for operators. Major bugs fixed include Dynamic Resource Handling in the Data Access Layer for stability, and CRD loading/visibility fixes (trimming GVR suffix and hotfixes) to ensure custom CRDs remain visible since v0.40.1. Release maintenance for 0.40.x (0.40.3 hotfix) completed, with updated release notes. Impact: improved user customization, reduced runtime errors, and a more reliable CRD ecosystem, supporting enterprise deployments and smoother upgrades. Technologies/skills demonstrated: UI customization via YAML/JSONPath, robust data access layer improvements, CRD handling and visibility fixes, hotfix-driven release maintenance, and clear documentation via release notes.
7 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for derailed/k9s: Key feature delivery and stability improvements across the 0.40.x line. Custom Views Enhancements introduced user-configurable columns via views.yaml using JSONPath, enabling tailored data views for operators. Major bugs fixed include Dynamic Resource Handling in the Data Access Layer for stability, and CRD loading/visibility fixes (trimming GVR suffix and hotfixes) to ensure custom CRDs remain visible since v0.40.1. Release maintenance for 0.40.x (0.40.3 hotfix) completed, with updated release notes. Impact: improved user customization, reduced runtime errors, and a more reliable CRD ecosystem, supporting enterprise deployments and smoother upgrades. Technologies/skills demonstrated: UI customization via YAML/JSONPath, robust data access layer improvements, CRD handling and visibility fixes, hotfix-driven release maintenance, and clear documentation via release notes.
February 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025: Focused on improving the ReplicaSet experience in derailed/k9s and strengthening CI hygiene. Delivered ReplicaSet UI/UX improvements with enhanced rendering accuracy, more correct resource limit calculations, improved default command behavior, and a targeted code refactor for maintainability. Achieved closer kubectl alignment and overall robustness to reduce operator friction and errors.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025: Focused on improving the ReplicaSet experience in derailed/k9s and strengthening CI hygiene. Delivered ReplicaSet UI/UX improvements with enhanced rendering accuracy, more correct resource limit calculations, improved default command behavior, and a targeted code refactor for maintainability. Achieved closer kubectl alignment and overall robustness to reduce operator friction and errors.
November 2024
2 Commits • 1 Features
Nov 1, 2024Monthly summary for 2024-11: Delivered stable K9s v0.32.x releases with a focus on reliability, usability, and maintainability. Consolidated updates for v0.32.6 and v0.32.7, implementing robust error handling, improved address display, enhanced regex filtering, and UI/UX refinements. Upgraded dependencies/toolchains and reinforced namespace/service account handling, container status visibility, and drain command improvements. Business value: reduced operator toil, faster troubleshooting, safer resource drains, and smoother onboarding for Kubernetes clusters.
2 Commits • 1 Features
Nov 1, 2024Monthly summary for 2024-11: Delivered stable K9s v0.32.x releases with a focus on reliability, usability, and maintainability. Consolidated updates for v0.32.6 and v0.32.7, implementing robust error handling, improved address display, enhanced regex filtering, and UI/UX refinements. Upgraded dependencies/toolchains and reinforced namespace/service account handling, container status visibility, and drain command improvements. Business value: reduced operator toil, faster troubleshooting, safer resource drains, and smoother onboarding for Kubernetes clusters.
November 2024
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Quality Metrics
Correctness85.6%
Maintainability83.6%
Architecture80.0%
Performance75.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
DockerfileGoMakefileMarkdownShellYAML
Technical Skills
API InteractionBackend DevelopmentBug FixingBuild SystemsCI/CDCLICLI DevelopmentCLI developmentCRD HandlingChangelog GenerationCode QualityCode RefactoringCommand Line InterfaceConfigurationConfiguration Management
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline