Installing Kubernetes | Getting Started

Getting Started with Kubernetes

Kubernetes is an open-source platform designed to automate deploying, scaling, and operating application containers. This guide provides a step-by-step guide to installing Kubernetes on different platforms.

Key Points:

Kubernetes can be installed on various platforms, including local machines, cloud providers, and on-premises data centers.
There are different tools and methods available for installing Kubernetes based on your environment and requirements.
Following the correct installation steps ensures a smooth setup and operation of your Kubernetes cluster.

Installing Kubernetes on Local Machine

Using Minikube

Minikube is a tool that lets you run Kubernetes on your local machine. Follow these steps to install Minikube:

# Install Minikube
curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube

# Start Minikube
minikube start

Using Kind

Kind (Kubernetes IN Docker) is another tool for running local Kubernetes clusters using Docker container nodes. Here are the steps:

# Install Kind
curl -Lo ./kind https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64
chmod +x ./kind
sudo mv ./kind /usr/local/bin/kind

# Create a Kubernetes cluster
kind create cluster

Installing Kubernetes on Cloud Providers

Google Kubernetes Engine (GKE)

Google Kubernetes Engine is a managed Kubernetes service provided by Google Cloud. Follow these steps to create a GKE cluster:

# Install Google Cloud SDK
curl https://sdk.cloud.google.com | bash
exec -l $SHELL
gcloud init

# Create a GKE cluster
gcloud container clusters create my-cluster --zone us-central1-a

# Get authentication credentials for the cluster
gcloud container clusters get-credentials my-cluster --zone us-central1-a

Amazon Elastic Kubernetes Service (EKS)

Amazon EKS is a managed Kubernetes service provided by AWS. Here are the steps to create an EKS cluster:

# Install AWS CLI
curl "https://awscli.amazonaws.com/AWSCLIV2.pkg" -o "AWSCLIV2.pkg"
sudo installer -pkg AWSCLIV2.pkg -target /

# Create an EKS cluster
aws eks create-cluster --name my-cluster --role-arn  --resources-vpc-config subnetIds=,securityGroupIds=

Installing Kubernetes On-Premises

Using kubeadm

kubeadm is a tool that helps you set up a Kubernetes cluster on your own hardware. Follow these steps:

# Install kubeadm, kubelet, and kubectl
sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl
sudo curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
sudo add-apt-repository "deb https://apt.kubernetes.io/ kubernetes-xenial main"
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl

# Initialize the Kubernetes cluster
sudo kubeadm init

# Set up local kubeconfig
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

# Deploy a pod network
kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml

Verifying the Installation

After installing Kubernetes, verify the installation by checking the cluster status:

# Check the status of nodes
kubectl get nodes

# Check the status of pods
kubectl get pods --all-namespaces

Conclusion

This guide provided step-by-step instructions for installing Kubernetes on various platforms, including local machines, cloud providers, and on-premises data centers. Following these steps will help you set up a Kubernetes cluster tailored to your environment and needs.

Kubernetes - Installing Kubernetes