An essential code guide showing how to consume ConfigMap data as environment variables and read-only volumes. Table of Contents Introduction ConfigMap Resource References Kubernetes Clusters for Hands-On Practice Code from GitHub Repo OBJECTIVE 01 — ConfigMap Data as Container Environment Variables with env OBJECTIVE 02 — ConfigMap Data as Container Environment Variables with…

An essential code guide showing how to create all flavors of ConfigMap configuration data from directories, files, and literal values. Table of Contents Introduction ConfigMap Resource References Kubernetes Clusters for Hands-On Practice Code from GitHub Repo OBJECTIVE 01 — Creating Declarative YAML Manifests with Imperative Commands OBJECTIVE 02 — Creating ConfigMaps from Literal…

3. Define these shell variables and aliases in your kubectl enabled dev. terminal. Use them daily and during the exam for cluster operations. Table of Contents Introduction Kubectl Alias File Applying Aliases Recollecting Aliases Kubectl Alias File — During Exam Alias References from Kubernetes Community Conclusion Introduction As a long-time Linux user, I make…

2. Check these options to have a cluster handy and all your codes accessible to try them out in the cluster at a moment's notice. Table of Contents Introduction Kubernetes Tasks GitHub Repo Option #1 — Free Cluster by Killercoda Option #2 — Free Cluster by Tutorius Option #3 — KinD Cluster with…

1. Begin your Kubernetes Certification journey by registering, reading, and reviewing these important resources throughout the prep cycle. Table of Contents Introduction CKA and CKAD Exam Home Bookmarks CNCF Curriculum GitHub Page Exam Registration at a Discount and Tux Rewards Membership Training and Certification FAQs Page Kubernetes Exam Simulator — KILLER.SH Training and…

A Kubernetes Service primer with hands-on examples showing how to build resilient and seamlessly scalable container-based applications. Table of Contents Introduction Kubernetes Service Resource References Kubernetes Clusters for Hands-On Practice OBJECTIVE 1 — Service Primary Purpose Demonstration OBJECTIVE 2 — Uninterrupted Service while Deployment Pods change OBJECTIVE 3 — Uninterrupted Client while Service…

A simple file cleanup utility showing how to write Kubernetes DaemonSets and perform rolling updates and rollbacks. Table of Contents Introduction Kubernetes DaemonSet Resource References Kubernetes Clusters for Hands-On Practice Download DaemonSets Demonstration Code from GitHub OBJECTIVE 1 — A File Cleanup Utility DaemonSet Running on All Nodes OBJECTIVE 2 — Performing a…

3 working examples demonstrate three ways of configuring emptyDir Volumes meeting three specific purposes. Learn all of them right here! Table of Contents Introduction Kubernetes Documentation References for emptyDir Create and Access KIND Kubernetes Cluster on EC2 OBJECTIVE 1 — Communicate Between Containers Using emptyDir Shared Volume OBJECTIVE 2 — Implment Memory or…

3 objectives teaching pod Volumes, container volumeMounts and handling of persistent data on Kubernetes cluster node filesystem with hostPath. Table of Contents Introduction Kubernetes Volumes Resource Reference Create and Access KIND Kubernetes Cluster on EC2 OBJECTIVE 1 — Creating Persistent Volumes on Cluster Node Filesystem OBJECTIVE 2 — Using Multiple Volumes and Volume…