ophircloud/fast-kubernetes

Fast-Kubernetes is a learning guide that covers Kubernetes from the ground up with practical hands-on exercises. Kubernetes is the tool most companies use to run containerized applications in production: it takes software packaged in containers and handles starting them, keeping them running, spreading traffic across multiple copies, and recovering from failures automatically. This repository explains how all of that works through a mix of concept explanations and step-by-step lab instructions. The guide walks through each major Kubernetes building block in sequence. You start with pods, which are the smallest unit Kubernetes manages, usually one or two containers grouped together. From there it covers deployments, which let you run multiple copies of the same pod and roll out updates without downtime. Services handle how traffic reaches your pods. ConfigMaps and Secrets store configuration and sensitive values separately from your code. Volumes and persistent volume claims give containers a way to store data that survives a restart. More advanced sections cover DaemonSets, which ensure a pod runs on every node in the cluster, StatefulSets for databases and similar workloads, Jobs and CronJobs for one-off and scheduled tasks, Ingress for routing outside traffic, and role-based access control. Each topic has an accompanying hands-on lab with concrete commands and YAML configuration files so you can run the scenario yourself. There are also cheatsheets for the kubectl command-line tool and for Helm, which is a package manager for Kubernetes. Later sections cover setting up a real multi-node cluster from scratch using Kubeadm, and monitoring a running cluster with Prometheus and Grafana. The prerequisites listed in the README suggest having some familiarity with Docker and containers before starting. The guide was originally written against Kubernetes version 1.22.3 and some sections have been updated since. The repository also links to a companion guide called Fast-Docker for readers who need to learn container basics first.