What is DevSecOps: A Quick Overview Alright, let’s dive right in! If you’ve been around the tech world, you’ve probably heard about DevOps—a methodology that bridges the gap between development and operations teams to deliver software faster and more reliably. But where does security fit into all of this? …
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SRE: From Theory to Practice
Introduction Being an SRE (Site Reliability Engineer) is like being the behind-the-scenes hero of a big production. While developers work on building new features, SREs make sure everything works smoothly and stays online. One of the hardest parts of being an SRE is being on-call. Imagine always needing to be …
Top 15 Open Source GitOps Tools
Introduction In the ever-evolving world of cloud computing, GitOps has become a game-changer for managing Kubernetes and other infrastructure. Imagine, instead of worrying about applying changes manually or through numerous scripts, you could simply push your configuration changes to a Git repository and watch your infrastructure adapt accordingly—just like magic. …
Istio Service Mesh on Kubernetes: Setup and Management Guide
In a microservices environment, managing communication between services can quickly become complex. Istio service mesh on Kubernetes simplifies this by providing a consistent way to connect, manage, and secure microservices. This guide offers a step-by-step process for setting up and managing Istio on Kubernetes, empowering you to enhance your architecture …
CKAD Exam Changes Are Coming: Here’s Why I’m Taking It Again Now
I’ve been working with Kubernetes for over 6 years, and in 2021, I took the CKAD (Certified Kubernetes Application Developer) exam and passed it. Now, it’s time to renew my certification! I’m planning to take the exam before November because it’s about to change, and since I’ve done it before, …
How to Troubleshoot Common AWS EC2 Issues for Linux and Windows Instances
TL;DR AWS EC2 instances are powerful, but developers often encounter common issues like instance launch failures, unreachable instances, and SSH or RDP connection problems. This guide focuses on troubleshooting specific EC2 issues for both Linux and Windows instances, and includes useful tools like EC2Rescue and the EC2 Serial Console. Introduction …
Terraform is not perfect
TL;DR Terraform is a powerful tool for infrastructure as code, but like any tool, it comes with challenges. In this article, we cover the top 20 common mistakes people make when using Terraform and how to fix them. By the end, you’ll be well-equipped to avoid these pitfalls and become …
Introduction to Terraform on Azure
TL;DR This guide walks you through how to download and configure Terraform, then use it to create a virtual machine on Microsoft Azure. Terraform is a powerful tool for managing infrastructure as code across multiple cloud platforms, including Azure. Introduction to Terraform on Azure Infrastructure as Code (IaC) has become …
Terraform, CloudFormation, Puppet, and Ansible: Understanding Key Infrastructure as Code (IaC) Tools
In today’s cloud-driven world, managing infrastructure manually is both time-consuming and prone to errors. To solve this, engineers turn to Infrastructure as Code (IaC) tools, which automate the process of configuring and managing servers, networks, and other infrastructure components. Four popular IaC tools stand out: Terraform, CloudFormation, Puppet, and Ansible. …