SRE vs DevOps: What’s the Difference? In the world of modern infrastructure and operations, SRE (Site Reliability Engineering) and DevOps are often mentioned together. While they aim for similar goals — delivering reliable, scalable, and efficient systems — they approach these goals differently. What is DevOps? DevOps is a culture and set of practices that promotes collaboration between developers and operations teams. The goal is to automate and streamline software delivery and infrastructure changes. ...

K3s vs MicroK8s: Lightweight Kubernetes Showdown Need Kubernetes but without the heavy machinery? That’s where K3s and MicroK8s shine. Let’s break them down in a simple and friendly way. What Are They? K3s – A lightweight Kubernetes distribution by Rancher, designed for IoT, edge, and low-resource environments. MicroK8s – A snap-based Kubernetes distro from Canonical (Ubuntu), easy to install and manage. Why Use Them? Feature K3s MicroK8s Size <100MB ~200MB Install Single binary snap install microk8s Resource usage Very low Low High availability Yes (with some config) Yes (built-in clustering) OS compatibility Linux (only) Linux, Windows (some support) Add-ons Helm, Traefik (default), etc. Built-in add-ons (microk8s enable) Installation K3s: curl -sfL https://get.k3s.io | sh - MicroK8s: sudo snap install microk8s --classic Use Cases K3s: Great for edge computing, Raspberry Pi clusters, or minimal VMs. MicroK8s: Ideal for local development, CI/CD pipelines, and Ubuntu-based systems. Pros and Cons K3s Pros: ...

Kubespray vs KIND: Which Kubernetes Setup Tool Should You Choose? When it comes to setting up a Kubernetes cluster, two names often come up: Kubespray and KIND (Kubernetes IN Docker). Both are open-source, both simplify Kubernetes cluster provisioning, but they serve different purposes. Let’s explore their differences, use cases, and when to choose one over the other. What is KIND? KIND is a tool for running local Kubernetes clusters using Docker container “nodes”. It’s primarily aimed at testing Kubernetes itself, CI workflows, and local development. ...

Common kube-apiserver Errors and How to Fix Them If you’re working with Kubernetes long enough, you’ll eventually run into strange behavior — and often the root cause is hidden inside the kube-apiserver. This component is the front door to your cluster, handling all requests and coordinating most actions. When it goes wrong, it can affect everything. Let’s look at common issues with the kube-apiserver and what to do about them. ...

What is APM? APM stands for Application Performance Monitoring or Application Performance Management. It’s a set of tools and practices that help you track, monitor, and optimize the performance of your applications. In simple terms, APM helps answer: Why is my app slow? What happens when users interact with the app? Where exactly is the performance bottleneck? Why Use APM? Imagine a user clicks a button on your website and it takes forever to respond. With APM, you can: ...