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Helm vs Kustomize: Which One Should You Choose? When deploying applications in Kubernetes, two of the most popular tools for managing configuration are Helm and Kustomize. Both aim to make deploying manifests more manageable, but they follow different philosophies and offer distinct features. Table of Contents What is Helm? What is Kustomize? Key Differences Pros and Cons Use Cases and Recommendations Example Configurations Conclusion 1. What is Helm? Helm is a package manager for Kubernetes. It lets you define, install, and upgrade even the most complex Kubernetes applications using Helm charts. ...

What is a Self-Signed Certificate? A self-signed certificate is a TLS/SSL certificate that is signed by the same entity whose identity it certifies. Unlike certificates signed by Certificate Authorities (CAs), self-signed certificates are not inherently trusted by clients or browsers. When to Use Self-Signed Certificates Development environments Internal testing and staging setups Internal services in private networks (e.g., Kubernetes clusters) ⚠️ Avoid using self-signed certificates in production for public-facing services unless you manage client trust manually. ...

How to Move K3s Data to a New Location Sometimes, you need to move K3s data to a different disk or partition — for example, when you run out of space or want to use a faster storage device. Here’s a safe way to do it. ⚠️ Prerequisites Root or sudo access Disk or mount point already prepared (e.g., /datadrive) 📦 What Will Be Moved We will migrate the following directories: ...

What to Do If Your Application Causes High Load in Kubernetes When an application inside your Kubernetes cluster starts consuming too much CPU or memory, it can lead to degraded node performance, evicted pods, or even node instability. Here’s how to troubleshoot and fix it. 1. Identify the Culprit Use kubectl top to check which pods are consuming the most resources: kubectl top pods --all-namespaces To dive deeper: kubectl describe pod <pod-name> -n <namespace> Check for high CPU/Memory and events like OOMKilled. ...

Introduction An I/O error in a Proxmox VM can bring a virtual machine to a halt. These errors often relate to disk access issues and can indicate underlying hardware problems, misconfigurations, or storage corruption. In this guide, we’ll explore how to diagnose, understand, and fix I/O errors in Proxmox virtual machines. Common Causes of I/O Errors 1. Disk Image Corruption Improper shutdowns, disk overuse, or failing storage media can corrupt VM disk images. ...