DevOps Tools

How to Configure HTPasswd Authentication on an OpenShift Cluster 0
- Best Practices & Patterns, Containers & Docker, DevOps Tools, Kubernetes, Security & Hardening, System Administration, Troubleshooting, Virtualization
- August 19, 2025
In this step-by-step guide, we will configure HTPasswd authentication on an existing OpenShift 4.15+ single-node cluster. We’ll create user accounts, update the cluster’s OAuth settings to use HTPasswd, and verify access via both the CLI and the web console. We’ll also cover how to assign admin privileges to a new user and remove the default kubeadmin user for security.
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Installing and Using n8n on RHEL 9/CentOS with Docker 0
- Best Practices & Patterns, DevOps Tools, Job Automation, Linux Basics, Networking, System Administration, Web Servers
- August 8, 2025
This guide will walk you through installing Docker on Red Hat Enterprise Linux 9 (or CentOS/Rocky/AlmaLinux 9), setting up n8n in a Docker container, and configuring SSL/HTTPS for secure access. We’ll use step-by-step instructions with explanations, sample commands, and outputs.
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Installing Red Hat Advanced Cluster Management 0
- CI/CD Pipelines, Configuration Management, Containers & Docker, DevOps Tools, Kubernetes, Web Servers
- July 23, 2025
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
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Building a Local Kubeflow MLOps Pipeline with Kubernetes 0
- AI, CI/CD Pipelines, DevOps Tools, Kubernetes, Linux Basics
- July 16, 2025
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.
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Managing Storage Space in Your OpenShift Cluster 0
- CI/CD Pipelines, Cloud Platforms, Containers & Docker, DevOps Tools, Kubernetes, Linux Basics, System Administration, Virtualization
- June 10, 2025
Keeping disk pressure under control is a day-to-day chore for cluster admins. Left unchecked, old container images, completed builds, logs and stray volumes will quietly eat through node storage and the internal registry PVC, eventually triggering pod evictions or broken pushes. This post walks through a layered strategy for reclaiming and preventing waste—starting with the integrated image registry and ending with node-level log rotation.
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Argo CD and GitOps: Setting Up Continuous Delivery on a Kubernetes Cluster 0
- CI/CD Pipelines, Containers & Docker, DevOps Tools, Job Automation, Kubernetes, Linux Basics, System Administration, Version Control (Git)
- June 10, 2025
Argo CD is an open-source GitOps continuous delivery tool for Kubernetes. In GitOps, all deployment manifests live in a Git repo as the source of truth. Argo CD continuously monitors the Git repo and the Kubernetes cluster, and automatically (or manually) syncs the live state to match the desired state in Git. It also provides a web-based UI to see “desired vs live” status of your applications. In this tutorial, we’ll install Argo CD on a local Minikube cluster, access the Argo CD web UI, and deploy a sample GitOps application (a simple NGINX example) from a public repository.
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