https://blog.lgkentang.com/posts/ Recent content in Posts on LGK https://blog.lgkentang.com/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E https://blog.lgkentang.com/%3Clink%20or%20path%20of%20image%20for%20opengraph,%20twitter-cards%3E Hugo -- 0.147.7 en Mon, 14 Jul 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/iac_kubernetes/ Mon, 14 Jul 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/iac_kubernetes/ <p>Spinning up a fresh Kubernetes cluster is a multi-step process that quickly becomes tedious and error-prone when repeated often. Tasks like enabling IP forwarding, disabling swap, configuring sysctl parameters, installing Kubernetes components, initializing the control plane, and manually joining nodes can become a serious time sink—especially in a homelab or testing environment.</p> <p>To streamline this process, I built a reproducible infrastructure setup using <strong>Terraform</strong>, <strong>Ansible</strong>, and <strong>Kube-VIP</strong> on a <strong>Libvirt-based virtualized environment</strong>. This setup lets me spin up a multi-master HA Kubernetes cluster with minimal manual effort, enabling consistent and reliable deployments across environments.</p> https://blog.lgkentang.com/posts/postgresql_cluster_setup/ Wed, 09 Jul 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/postgresql_cluster_setup/ <p>In the middle of developing my DevSecOps pipeline, I realized that my database was going to be a single-node server, that was initially the thought process. But after digging a lot more into database design, it was fascinating, hence I decided to build my database cluster.</p> https://blog.lgkentang.com/posts/migrating_docker_to_kubernetes/ Thu, 03 Jul 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/migrating_docker_to_kubernetes/ <p>This guide documents a hands-on approach to <strong>migrating Docker Compose projects to Kubernetes</strong>. It outlines everything from fundamental concepts to practical examples—ideal for homelabbers, DevOps engineers, or anyone scaling from local dev to production-grade clusters.</p> https://blog.lgkentang.com/posts/planning_my_devsecops_pipeline/ Thu, 19 Jun 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/planning_my_devsecops_pipeline/ <p>In this blog, I will thoroughly explain my initial DevSecOps Pipeline Plan and how I would orchestrate all of these tools to build an automation machine for enterprise-level deployments.</p> <h2 id="company-github">Company GitHub</h2> <p>I&rsquo;ve created a mock virtual company in the name of <a href="https://github.com/paragon-corp">Paragon Corp</a> to simulate a real GitHub account and repository structure for corporations. While the existing repositories and codebase are currently placeholders, I&rsquo;m planning to build a microservice-based application using Go in the future.</p> https://blog.lgkentang.com/posts/certified_kubernetes_administrator/ Mon, 09 Jun 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/certified_kubernetes_administrator/ <p>After weeks of endless kubectl applying and cluster troubleshooting, and then finding out how much harder the exam would be after the February changes, I hereby declare passed the <strong>Certified Kubernetes Administrator (CKA)</strong> exam!</p> https://blog.lgkentang.com/posts/kubernetes_setup/ Thu, 10 Apr 2025 00:00:00 +0000 https://blog.lgkentang.com/posts/kubernetes_setup/ <p>A step-by-step tutorial on how I set up my private Kubernetes cluster using <code>kubeadm</code> and Calico CNI.</p>