deckhouse/deckhouse
Nov 2025 – Apr 2026
6 Months active
Languages Used
ShellGoJavaScriptMarkdownPythonYAMLJSONbash
Technical Skills
Kubernetesbackend developmentwebhook developmentDevOpsGoSystem Administration
Andrey Borovets
PROFILE
Andrey Borovets
Over six months, contributed to the deckhouse/deckhouse repository by delivering fifteen features and addressing critical stability and security needs across Kubernetes infrastructure. Work included developing a Kubernetes admission webhook for IP allocation validation, implementing configurable kubelet swap memory, and extending admission policy support to strengthen governance. Enhanced upgrade reliability through state file cleanup and expanded compatibility with Kubernetes 1.35, while modernizing runtime support for CgroupV2 and ContainerdV2. Security posture was improved via vulnerability management updates and image optimization. Leveraged Go, Kubernetes, and shell scripting to automate configuration, streamline upgrades, and enforce security compliance, resulting in more robust and maintainable clusters.
Overall Statistics
Feature vs Bugs
94%Features
Repository Contributions
21Total
Bugs
1
Commits
21
Features
15
Lines of code
50,887
Activity Months6
Your Network
199 peopleSame Organization
@flant.com96
Work History
April 2026
6 Commits • 5 Features
Apr 1, 2026Monthly summary for 2026-04 focusing on deckhouse/deckhouse delivery, impact, and technical achievements. Highlighted work improved security posture, upgrade readiness, cluster governance, and platform support across the Kubernetes stack.
6 Commits • 5 Features
Apr 1, 2026Monthly summary for 2026-04 focusing on deckhouse/deckhouse delivery, impact, and technical achievements. Highlighted work improved security posture, upgrade readiness, cluster governance, and platform support across the Kubernetes stack.
April 2026
March 2026
4 Commits • 2 Features
Mar 1, 2026March 2026 delivered security and efficiency enhancements for deckhouse/deckhouse, focusing on vulnerability management and container image optimization. Consolidated vulnerability management updates include VEX file updates for CVE-2026-24051 and an exception for CVE-2026-33186 to reduce false positives. Additionally, image footprint was reduced by stripping debugging symbols from crictl and runc across builds, improving deployment speed and resource efficiency. These changes enhance security accuracy, reduce deployment footprints, and support faster, safer releases.
March 2026
4 Commits • 2 Features
Mar 1, 2026March 2026 delivered security and efficiency enhancements for deckhouse/deckhouse, focusing on vulnerability management and container image optimization. Consolidated vulnerability management updates include VEX file updates for CVE-2026-24051 and an exception for CVE-2026-33186 to reduce false positives. Additionally, image footprint was reduced by stripping debugging symbols from crictl and runc across builds, improving deployment speed and resource efficiency. These changes enhance security accuracy, reduce deployment footprints, and support faster, safer releases.
February 2026
4 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for deckhouse/deckhouse focused on expanding cluster compatibility, modern runtime support, and maintenance hygiene. Delivered Kubernetes 1.35 compatibility with new candi module feature gates to enable finer scheduling (MutablePVNodeAffinity, NodeDeclaredFeatures, TaintTolerationComparisonOperators), plus CI adjustments to accommodate the 1.35 workflow. Implemented node-manager support for CgroupV2 and ContainerdV2, including alerts for deprecated versions and metrics for compliance monitoring, improving runtime modernization and observability. Removed outdated Kubernetes v1.30 patches and updated dependencies to align with newer Kubernetes releases, reducing technical debt and simplifying future upgrades. Overall impact: improved cluster compatibility with current ecosystems, better resource scheduling control, and stronger governance/monitoring for runtime environments.
4 Commits • 3 Features
Feb 1, 2026February 2026 monthly summary for deckhouse/deckhouse focused on expanding cluster compatibility, modern runtime support, and maintenance hygiene. Delivered Kubernetes 1.35 compatibility with new candi module feature gates to enable finer scheduling (MutablePVNodeAffinity, NodeDeclaredFeatures, TaintTolerationComparisonOperators), plus CI adjustments to accommodate the 1.35 workflow. Implemented node-manager support for CgroupV2 and ContainerdV2, including alerts for deprecated versions and metrics for compliance monitoring, improving runtime modernization and observability. Removed outdated Kubernetes v1.30 patches and updated dependencies to align with newer Kubernetes releases, reducing technical debt and simplifying future upgrades. Overall impact: improved cluster compatibility with current ecosystems, better resource scheduling control, and stronger governance/monitoring for runtime environments.
February 2026
January 2026
4 Commits • 2 Features
Jan 1, 2026January 2026: Delivered critical stability fixes and Kubernetes patch clarity in deckhouse/deckhouse, expanded test coverage for newer Kubernetes versions, and documented patch purposes to improve user understanding and maintenance. These efforts reduce upgrade risk, improve reliability during node reboots, and extend validation to Kubernetes 1.35.
January 2026
4 Commits • 2 Features
Jan 1, 2026January 2026: Delivered critical stability fixes and Kubernetes patch clarity in deckhouse/deckhouse, expanded test coverage for newer Kubernetes versions, and documented patch purposes to improve user understanding and maintenance. These efforts reduce upgrade risk, improve reliability during node reboots, and extend validation to Kubernetes 1.35.
December 2025
2 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for deckhouse/deckhouse: Delivered two high-impact features that enhance cluster stability, governance, and resource control. 1) Kubelet Swap Memory Configuration: introduced configurable swap usage for kubelet with options for no swap or limited swap size, including scripts to configure swap behavior and update system settings, enabling better resource management and stability on nodes. 2) Kubernetes Admission Policy Extensions: added support for ValidatingAdmissionPolicy and ValidatingAdmissionPolicyBinding in Kubernetes admission registration, strengthening governance, policy enforcement, and monitoring for the Kubernetes module. These changes improve operational control, visibility, and reliability for deployments across clusters. Commits documented for traceability: 86d0328a6e6671e7cfa36dbb8695bd3fb2a36d85 and 6b767879a88aa083978be2f73488c06b8ed86644.
2 Commits • 2 Features
Dec 1, 2025December 2025 monthly summary for deckhouse/deckhouse: Delivered two high-impact features that enhance cluster stability, governance, and resource control. 1) Kubelet Swap Memory Configuration: introduced configurable swap usage for kubelet with options for no swap or limited swap size, including scripts to configure swap behavior and update system settings, enabling better resource management and stability on nodes. 2) Kubernetes Admission Policy Extensions: added support for ValidatingAdmissionPolicy and ValidatingAdmissionPolicyBinding in Kubernetes admission registration, strengthening governance, policy enforcement, and monitoring for the Kubernetes module. These changes improve operational control, visibility, and reliability for deployments across clusters. Commits documented for traceability: 86d0328a6e6671e7cfa36dbb8695bd3fb2a36d85 and 6b767879a88aa083978be2f73488c06b8ed86644.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 — Summary: Delivered a Kubernetes admission webhook (Pod IP Allocation Validation Webhook) in deckhouse/deckhouse to validate maxPods against podSubnetNodeCIDRPrefix, ensuring the number of pods does not exceed the available IPs in the subnet. This reduces risk of IP exhaustion and improves cluster capacity planning for large-scale deployments. The change is anchored to commit feb135710fe5f4e10fb3dffdee321f1552b0b31b (PR #16695) for traceability and review. No major bugs reported in this period based on the provided data; focus remained on delivering a robust, auditable validation mechanism. Business value includes increased scheduling reliability, predictable subnet utilization, and smoother upgrades with subnet IP safety checks. Technologies/skills demonstrated include Kubernetes admission webhook development, subnet/IP capacity validation, code traceability through commits and PR references, and cross-functional collaboration.
November 2025
1 Commits • 1 Features
Nov 1, 2025Month: 2025-11 — Summary: Delivered a Kubernetes admission webhook (Pod IP Allocation Validation Webhook) in deckhouse/deckhouse to validate maxPods against podSubnetNodeCIDRPrefix, ensuring the number of pods does not exceed the available IPs in the subnet. This reduces risk of IP exhaustion and improves cluster capacity planning for large-scale deployments. The change is anchored to commit feb135710fe5f4e10fb3dffdee321f1552b0b31b (PR #16695) for traceability and review. No major bugs reported in this period based on the provided data; focus remained on delivering a robust, auditable validation mechanism. Business value includes increased scheduling reliability, predictable subnet utilization, and smoother upgrades with subnet IP safety checks. Technologies/skills demonstrated include Kubernetes admission webhook development, subnet/IP capacity validation, code traceability through commits and PR references, and cross-functional collaboration.
Activity
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Quality Metrics
Correctness94.2%
Maintainability84.8%
Architecture87.6%
Performance85.8%
AI Usage26.6%
Skills & Technologies
Programming Languages
GoJSONJavaScriptMarkdownPythonShellYAMLbash
Technical Skills
Backend DevelopmentCI/CDCloud InfrastructureConfiguration ManagementContainerizationDevOpsGoGo DevelopmentKubernetesLinux AdministrationMonitoringPrometheusPythonScriptingSecurity Management
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