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David Bajzath

PROFILE

David Bajzath

Worked on the hortonworks/cloudbreak-images repository to enhance image traceability, storage efficiency, and runtime stability for RHEL-based cloud infrastructure. Delivered features such as FreeIPA image version metadata tracking and image size optimization, using SaltStack, YAML, and shell scripting to automate configuration and provisioning. Addressed security by implementing and later reverting loopback filesystem hardening for /tmp to balance startup requirements. Improved PostgreSQL version compatibility by preventing unsupported installations and aligning package selection with RHEL versions, reducing deployment risks. Demonstrated a methodical approach to system administration, configuration management, and security hardening, with clear documentation and validation of changes throughout the development cycle.

Overall Statistics

Feature vs Bugs

60%Features

Repository Contributions

6Total
Bugs
2
Commits
6
Features
3
Lines of code
174
Activity Months2

Your Network

118 people

Work History

August 2025

1 Commits

Aug 1, 2025

August 2025: Delivered PostgreSQL version compatibility improvements for hortonworks/cloudbreak-images. Implemented safeguards to prevent PostgreSQL 11 installation on RHEL 9 images, ensured PostgreSQL 14 is installed by default, and conditionally added PostgreSQL 17 for other RHEL versions. Removed PostgreSQL 11 packages when image subtype is Docker or OS is redhat9. This work reduces deployment risk, aligns with the supported PostgreSQL matrix, and improves stability for customer clusters running RHEL-based images. Commit CB-30176 (fa136f6295431ddc15f1fef91db12f6c6fde91b1) documents the fix.

November 2024

5 Commits • 3 Features

Nov 1, 2024

November 2024 monthly summary for hortonworks/cloudbreak-images focused on improving image traceability, storage efficiency, and runtime stability. Delivered key features and a security hardening effort with a controlled revert to satisfy startup requirements, all while clearly documenting commits for traceability.

Activity

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Quality Metrics

Correctness88.4%
Maintainability86.6%
Architecture85.0%
Performance86.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

SLSShellYAML

Technical Skills

Cloud Infrastructure ManagementConfiguration ManagementDevOpsLinuxSaltStackScriptingSecurity HardeningShell ScriptingSystem Administration

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

hortonworks/cloudbreak-images

Nov 2024 Aug 2025
2 Months active

Languages Used

SLSShellYAML

Technical Skills

Cloud Infrastructure ManagementDevOpsLinuxSaltStackScriptingSecurity Hardening