Do you have experience setting up Kubernetes using the kubeadm tool?

Yes, the experience of setting up Kubernetes using kubeadm includes the following main steps:

1. Preparing the servers: installing necessary packages, configuring the network, disabling swap.

2. Initializing the cluster with the command:

kubeadm init --pod-network-cidr=10.244.0.0/16

This creates the master node and generates the configuration.

3. Configuring kubectl to interact with the cluster:

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

4. Installing a network plugin (e.g., Flannel or Calico) to ensure network communication between pods.

5. Adding worker nodes to the cluster using the command that kubeadm outputs after initialization:

kubeadm join <master-ip>:6443 --token <token> --discovery-token-ca-cert-hash sha256:<hash>

6. Checking the cluster status using kubectl get nodes and kubectl get pods -A.

kubeadm is a tool for quick and standardized deployment of Kubernetes clusters, suitable for testing and production environments with minimal effort.