sirmusera

sirmusera

Linux, DevOps and Infrastructure Engineer with hands-on experience in AWS, Kubernetes/OpenShift, Ansible, CI/CD, automation, and production troubleshooting. I enjoy building reliable systems, reducing operational toil, and improving developer workflows through practical DevOps practices and automation. Passionate about open source, clear technical communication, and creating infrastructure that is scalable, observable, and easy to operate. https://www.linkedin.com/in/musera-isaac/

Linux Active Directory Integration with SSSD, SSH, and PAM – Guide 0
- Best Practices & Patterns, Linux Basics, Security & Hardening, System Administration, Troubleshooting
- August 5, 2025
By following these practices and understanding the components, you will have a robust setup where Linux and Active Directory work together for seamless user authentication. The key is to verify each piece (DNS, Kerberos, SSSD, PAM) and use the tools available (logs, realm commands, sssctl, etc.) to diagnose issues. With proper configuration, domain users can log into Linux systems using their AD accounts, and administrators can centrally manage credentials and policies in AD while maintaining Linux-specific settings via SSSD.
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Automate RHEL 9 and CentOS Stream 9 Installation on KVM Using Kickstart 0
- Infrastructure as Code, Job Automation, Linux Basics, Shell Scripting, System Administration, Virtualization, Web Servers
- July 23, 2025
Automating OS installations can save time and ensure consistency, especially when deploying multiple virtual machines. Kickstart is a tool from Red Hat that allows you to automate the installation of RHEL and its derivatives by providing a file with answers to all the installation prompts. In this guide, we’ll walk through a beginner-friendly step-by-step process to automate the installation of Red Hat Enterprise Linux 9 and CentOS Stream 9 on KVM using Kickstart. We assume you already have KVM (via libvirt/QEMU) installed and configured on your host system.
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Installing Red Hat Advanced Cluster Management 0

Red Hat Advanced Cluster Management for Kubernetes (RHACM) is a powerful tool that lets you manage multiple OpenShift and Kubernetes clusters from one place. In this beginner-friendly guide, we will walk through installing RHACM version 2.4.x (or higher) on a bare metal OpenShift cluster using the OperatorHub, and then importing an existing cluster for management. The steps are straightforward and use the OpenShift web console for ease of use

Building a Local Kubeflow MLOps Pipeline with Kubernetes 0

This guide walks through setting up a local Kubernetes cluster, installing Kubeflow, and running an end-to-end ML pipeline (training and serving) with Kubeflow Pipelines and KServe. We’ll use a scikit-learn model example and show commands and sample outputs at each step. All commands are run on a Linux or macOS terminal unless noted otherwise.

Automate. Deploy. Scale — The Linux Way

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