https://marktaguiad.dev/tags/pod/ Recent content in Pod on marktaguiad.dev Hugo en-us marktaguiad@marktaguiad.dev (Mark Taguiad) marktaguiad@marktaguiad.dev (Mark Taguiad) marktaguiad.dev Fri, 06 Mar 2026 12:15:40 +0800 https://marktaguiad.dev/post/k8s-notes-part5/ Fri, 06 Mar 2026 12:15:40 +0800marktaguiad@marktaguiad.dev (Mark Taguiad) https://marktaguiad.dev/post/k8s-notes-part5/ <p>Kubernetes is designed to keep applications running even when failures occur. One of the key mechanisms that enables this is the Controller.</p> <p>Controllers continuously monitor the cluster and ensure that the actual state matches the desired state. If something goes wrong, Kubernetes automatically corrects it.</p> <p>This behavior is commonly referred to as self-healing.</p> <p>It performs three main tasks:</p> <ul> <li>Observe the current state</li> <li>Compare it with the desired state</li> <li>Take action if they differ</li> </ul> <p>This loop runs continuously inside the Kubernetes control plane.</p> https://marktaguiad.dev/post/k8s-notes-part2/ Thu, 05 Mar 2026 17:22:20 +0800marktaguiad@marktaguiad.dev (Mark Taguiad) https://marktaguiad.dev/post/k8s-notes-part2/ <p><img class="theme-image" src="https://marktaguiad.dev/images/devops/k8s-notes/k8s-notes-pod-001.png" data-light="/images/devops/k8s-notes/k8s-notes-pod-001.png" data-dark="/images/devops/k8s-notes/k8s-notes-pod-dark-001.png" alt="Architecture Diagram" > In Kubernetes, you do not deploy containers directly. Instead, containers run inside a Pod, which acts as a wrapper around one or more containers. Pods are the smallest deployable unit in the Kubernetes.</p> <p>A Pod provides:</p> <ul> <li>Shared specification for containers</li> <li>Shared storage (volumes)</li> <li>Shared network</li> </ul> <h1 id="table-of-contents">Table of Contents</h1> <nav id="TableOfContents"> <ol> <li><a href="#kubeconfig">Kubeconfig</a></li> <li><a href="#creating-pods-with-kubectl">Creating Pods with kubectl</a></li> <li><a href="#using-yaml-for-kubernetes-resources">Using YAML for Kubernetes Resources</a></li> <li><a href="#multiple-pods">Multiple Pods</a> <ol> <li><a href="#manifest">Manifest</a></li> <li><a href="#namespace">Namespace</a></li> <li><a href="#deploy">Deploy</a></li> <li><a href="#listing-the-pod">Listing the Pod</a></li> <li><a href="#verify">Verify</a></li> </ol> </li> <li><a href="#pod-lifecycle">Pod Lifecycle</a> <ol> <li><a href="#pending">Pending</a></li> <li><a href="#running">Running</a></li> <li><a href="#succeeded">Succeeded</a></li> <li><a href="#failed">Failed</a></li> <li><a href="#completed--terminated">Completed / Terminated</a></li> </ol> </li> <li><a href="#pod-readiness-and-liveliness-probe">Pod Readiness and Liveliness Probe</a> <ol> <li><a href="#liveness-probe">Liveness Probe</a></li> <li><a href="#readiness-probe">Readiness Probe</a></li> <li><a href="#demo">Demo</a></li> </ol> </li> <li><a href="#pods-are-ephemeral">Pods Are Ephemeral</a></li> <li><a href="#clean-up">Clean Up</a></li> <li><a href="#bonus">Bonus</a></li> </ol> </nav> <h3 id="kubeconfig">Kubeconfig</h3> <p>Before we deploy pods, let&rsquo;s first discuss <code>kubeconfig</code> for cluster access. Check this <a href="https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/">link</a> for further explanation.</p>