I decided to build a Git-based tool to manage Kubernetes secrets more efficiently. The whole idea was to automatically encrypt password and value fields in my Kubernetes YAML and Helm files before committing them into Git, and decrypt them effortlessly when checking out.

Configuring Nexus Sonatype to serve HTTPS traffic using a custom SSL certificate involves replacing the default Jetty configuration and keystore with your own. This allows you to use a certificate signed by your internal Certificate Authority (CA), improving security and trust within your network environment.

In the rapidly shifting landscape of container images, relying solely on DockerHub for your Kubernetes workflows exposes you to supply chain interruptions and image unavailability. Notably, the unpublishing of Bitnami images by Broadcom left many DevOps teams scrambling for alternatives and showcased the risks of relying on external registries. This guide walks you through configuring Sonatype Nexus as a DockerHub proxy for MicroK8s, ensuring your critical images remain available and under your own control.

Reclaiming disk space by safely resetting the containerd snapshotter storage without losing your Kubernetes configuration.

When using Vim inside a terminal emulator like PuTTY, users sometimes encounter the issue where the Vim help window randomly opens without user input. This problem is commonly caused by utilities designed to prevent the computer from sleeping or going idle—often called nosleep applications. These utilities send keystrokes such as Scroll Lock or Shift at intervals, which PuTTY configured with the terminal type “xterm” interprets incorrectly as the F1 key. Since F1 triggers the Vim help, the help window appears unexpectedly.

Running Raspberry Pi OS inside QEMU is a convenient way to test configurations or perform lightweight development without real hardware. However, the process can appear stalled during boot, especially when emulating ARM on x86_64. Here’s a step-by-step guide based on what worked for me when running Raspberry Pi OS under QEMU on an Ubuntu 24 system inside Hyper-V.

When you want to integrate data outlets neatly into a trunking system, the combination of Kopos ducts and ABB Zoni components offers a professional and visually clean solution. This guide explains how to mount an RJ45 outlet into a 110 mm Kopos cable duct using specific parts from K&V Elektro and provides practical installation tips.

Maintaining the reliability of critical services often requires continuous monitoring of their health and automatic recovery in case of failures. While Kubernetes offers built-in liveness and readiness probes for containerized applications, Linux system administrators can implement similar health checks and automated restarts for services managed by systemd. This article explores practical ways to perform health monitoring using systemd, focusing on DNS availability checks as an example, and how to configure systemd to automatically restart services that become unhealthy.

Running BuildKit in rootless mode increases your security and flexibility when building container images, especially on multi-user systems or CI environments where root privileges are restricted. This method uses a dedicated user and systemd service for isolation and automation, ensuring clean operation without elevated permissions. Docker is installed to provide a familiar runtime for container operations, while RootlessKit bridges the gap needed for rootless containerization.

This tutorial guides through installing Sonatype Nexus Community Edition on Ubuntu with PostgreSQL, configuring permissions, setting up reverse proxy with Nginx, and optimizing Nexus settings.