Kubernetes is an open-source container orchestration platform that is used to manage containerized applications. In this tutorial, we will show you how to install Kubernetes on Debian Latest.
Before proceeding, you must have the following:
The first step before installing Kubernetes is to install Docker on your Debian system. This can be done using the following command:
sudo apt-get update
sudo apt-get install docker.io
The next step is to install the required Kubernetes tools; kubelet, kubeadm and kubectl. Use the following command to install these tools:
sudo apt-get install -y apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF
sudo apt-get update
sudo apt-get install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl
After installing the necessary tools, you can now initialize Kubernetes on your Debian system using the following command:
sudo kubeadm init
This will start the Kubernetes initialization process and may take several minutes to complete.
Once it is complete, you will be presented with a command to run on other nodes to join the cluster. It should look something like this:
kubeadm join <ip_address>:<port> --token <token> --discovery-token-ca-cert-hash sha256:<hash>
Save this command as you will need it to join other nodes to the cluster.
Kubernetes networking can be configured by installing a container networking interface (CNI) plugin. In this tutorial, we will use flannel. Install flannel using the following command:
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
To join other nodes to the Kubernetes cluster, run the command that was provided in Step 3 on each node.
kubeadm join <ip_address>:<port> --token <token> --discovery-token-ca-cert-hash sha256:<hash>
In this tutorial, we have shown you how to install Kubernetes on Debian Latest. You can now start deploying and managing containerized applications.
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