Day 6/40 - Kubernetes Multi Node Cluster Setup Step By Step | Kind Tutorial

About this video

- **Introduction**: The video is part of the CKA 2024 series by Push, focusing on setting up a local Kubernetes environment. - **Cloud Provider Choice**: The series does not use any cloud provider (e.g., AKS, EKS, GKE) to ensure maximum hands-on learning. Managed services limit access to the control plane and troubleshooting opportunities. - **Local Kubernetes Installation**: Learning Kubernetes locally provides more control and better understanding. Tools like Minikube, K3S, K3D, and Kind are options for local installation. The video focuses on **Kind** (Kubernetes in Docker). - **Kind Overview**: Kind runs Kubernetes clusters using Docker containers as nodes. It's easy to set up and suitable for learning and exam preparation. - **Prerequisites**: - Install **Go 1.16** or higher. - Install **Docker**, **Podman**, or **NerdCTL**. - **Kind Installation**: - On **Mac**: Use `brew install kind`. - On **Windows**: Use `choco install kind` (via Chocolatey). - On **Linux**: Follow instructions from the Kind documentation. - **Cluster Creation**: - Basic command: `kind create cluster`. - Optional flags: Specify the Kubernetes version using `--image` and name the cluster with `--name`. - Example: Installed Kubernetes version **1.29** to align with the CKA exam version at the time of recording (May 2024). - **Verifying Cluster Setup**: - Use `kubectl cluster-info` to check the cluster status. - Ensure **kubectl** (Kubernetes CLI) is installed, which is essential for interacting with Kubernetes clusters. - **Single Node Cluster**: - By default, Kind creates a single-node cluster where the control plane and worker node are the same. - Verified using `kubectl get nodes`. - **Multi-Node Cluster**: - Created using a YAML configuration file specifying roles for control plane and worker nodes. - Command: `kind create cluster --config config.yaml`. - Result: One control plane node and two worker nodes. - **Switching Between Clusters**: - Use `kubectl config get-contexts` to list available contexts (clusters). - Switch contexts using `kubectl config use-context `. - **Exam Preparation Tips**: - Familiarize yourself with Kubernetes documentation (`kubernetes.io/docs` and `kubernetes.io/blog`) as they are accessible during the CKA exam. - Use the Kubernetes **cheat sheet** for quick reference to commands. - Practice switching contexts between clusters, as this will be crucial during the exam. - **Next Steps**: - Future videos will cover creating pods, imperative vs. declarative approaches, and YAML basics for Kubernetes configurations. - **Conclusion**: The video sets up a local Kubernetes environment using Kind, emphasizing hands-on practice and preparation for the CKA exam.

Course: Certified Kubernetes Administrator Full Course For beginners | CKA 2025

This playlist contains the complete CKA series for beginners, based on the latest 2025 curriculum. It includes 40+ videos with hands-on demos, assignments, and exam-based scenarios. We will cover everything from the basics to the Advanced, including fundamental concepts such as Docker, containers, Docker storage and networking, DNS, etc.