HashiCorp Packer is an open-source tool for creating identical machine images for multiple platforms from a single configuration source. Rather than manually configuring servers after deployment, Packer bakes your configuration — packages, users, services, certificates — directly into the image at build time, embodying the immutable infrastructure pattern. The resulting AMIs, OVA files, or container […]
Introduction Setting up register rhel 10 with red hat subscription manager on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Register RHEL 10 with Red Hat Subscription Manager, with all the commands you need, the SELinux and firewalld considerations to keep […]
Introduction Setting up perform a minimal installation of rhel 10 on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Perform a Minimal Installation of RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, […]
Vagrant is a command-line tool for creating and managing reproducible local development environments backed by virtual machines. Combined with VirtualBox as a hypervisor, it lets developers spin up a fresh Linux VM with a single command, configure it through a version-controlled Vagrantfile, and destroy it just as easily. This eliminates the “works on my machine” […]
Sonatype Nexus Repository Manager is a universal binary repository that centralizes storage and distribution of build artifacts across your organization. It supports Maven JARs, npm packages, Docker images, Python packages, RubyGems, and more — acting as both a proxy for upstream registries and a private hosted repository. In large teams and CI/CD pipelines, Nexus reduces […]
SonarQube is an open-source static code analysis platform that continuously inspects source code for bugs, security vulnerabilities, code smells, and technical debt across 30+ programming languages. It integrates with CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions) to provide automatic quality gates — blocking merges or deployments when code quality metrics fall below defined thresholds. SonarQube […]
How to Set Up Windows Server 2012 R2 as a DSC Node Once a DSC Pull Server is operational, the next step is configuring managed nodes to pull their configurations automatically. Each managed server runs a Local Configuration Manager (LCM) — the DSC engine built into PowerShell — that handles pulling configurations, applying them, and […]
ArgoCD’s GitOps model for Kubernetes delivery moves beyond traditional push-based CI/CD (where a pipeline runs kubectl apply) to a pull-based reconciliation loop where ArgoCD continuously monitors Git repositories and automatically brings the cluster state into alignment with the declared desired state. For production organisations, ArgoCD’s most powerful features are: ApplicationSets (templated applications that generate multiple […]
How to Configure a DSC Pull Server on Windows Server 2012 R2 Desired State Configuration (DSC) is a PowerShell-based configuration management platform built into Windows Server 2012 R2. In push mode, an administrator pushes configurations directly to individual nodes. In pull mode, nodes periodically contact a central Pull Server to retrieve their configuration and report […]
Helm is the standard Kubernetes package manager — a single helm install command deploys a complete application stack by rendering and applying a collection of templated Kubernetes manifests called a chart. Beyond basic installation, Helm provides powerful package management workflows: multiple simultaneous releases of the same chart with different configurations, chart dependencies (a parent chart […]
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