Setup Kubernetes Cluster using Minikube
We will use minikube in to run kubernetes cluster in your local machine. You can download and install minikube from their official website: https://minikube.sigs.k8s.io/docs/.
Start and Configure a Kubernetes Cluster
Start Minkube
minikube start --kubernetes-version=v1.31.0 --cpus=2 --memory=4096
- This starts a cluster with 2 CPUs and 4GB of memory, running Kubernetes version 1.31.0.
- You can check the cluster status:
kubectl cluster-info - Which should return below information:
Kubernetes control plane is running at https://127.0.0.1:57821
CoreDNS is running at https://127.0.0.1:57821/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
View Cluster Configuration
Check Node information.
kubectl get nodes
kubectl describe node minikube
List system components of kubernetes such as API Server, Scheduler, Controller Manager, CoreDNS, etc.
kubectl get pods -n kube-system
Above command should return you list like below.
NAME READY STATUS RESTARTS AGE
coredns-6f6b679f8f-88xz9 1/1 Running 0 24m
etcd-minikube 1/1 Running 0 24m
kube-apiserver-minikube 1/1 Running 0 24m
kube-controller-manager-minikube 1/1 Running 0 24m
kube-proxy-zxlvw 1/1 Running 0 24m
kube-scheduler-minikube 1/1 Running 0 24m
storage-provisioner 1/1 Running 1 (24m ago) 24m
Add/Remove Nodes
Although Minikube is single-node by default, simulate multi-node behavior using Minikube profiles. Here's how to add a new Node in minikube.
minikube node add
Get list of nodes again using kubectl get nodes and it should return newly added nodes.
NAME STATUS ROLES AGE VERSION
minikube Ready control-plane 32m v1.31.0
minikube-m02 Ready <none> 17s v1.31.0
Removing a Node.
minikube node delete minikube-m02