Step 1: Prepare the System
Configure kernel modules by creating a configuration file:
Copy cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
overlay
br_netfilter
EOF
Load the required kernel modules:
Copy sudo modprobe overlay
sudo modprobe br_netfilter
sudo sysctl --system
Step 2: Install Container Runtimes
Add Docker's official GPG key:
Copy sudo apt-get update
sudo apt-get install ca-certificates curl gnupg
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
sudo chmod a+r /etc/apt/keyrings/docker.gpg
Add the Docker repository to Apt sources:
Copy echo \
"deb [arch=\$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu \
\$(. /etc/os-release && echo "\$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update
Install containerd.io:
Copy sudo apt-get install containerd.io
Step 3: Install Container Networking Plugins
Download and install CNI plugins:
Copy wget https://github.com/containernetworking/plugins/releases/download/v1.3.0/cni-plugins-linux-amd64-v1.3.0.tgz
mkdir -p /opt/cni/bin
tar -C /opt/cni/bin -xzvf cni-plugins-linux-amd64-v1.3.0.tgz
Edit the containerd configuration:
Copy nano /etc/containerd/config.toml
Add the following configuration under
Copy [plugins."io.containerd.grpc.v1.cri".containerd.runtimes.runc.options]
SystemdCgroup = true
You need CRI support enabled to use containerd with Kubernetes. Make sure that cri
is not included in thedisabled_plugins
list within /etc/containerd/config.toml
;
Restart containerd:
Copy sudo systemctl restart containerd
Step 4: Install Kubernetes Tools
Install necessary tools and set up the Kubernetes repository:
Copy sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl
sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
List available versions of kubeadm:
Copy sudo apt list -a kubeadm
Install kubeadm, kubelet, and kubectl (replace 1.28.0 with your desired version):
Copy sudo apt-get install kubeadm=1.28.0-00
sudo apt-get install kubelet=1.28.0-00
sudo apt-get install kubectl=1.28.0-00
Step 5: Initialize Kubernetes Control Plane
Pull the required container images:
Copy sudo kubeadm config images pull --kubernetes-version=1.28.0
Initialize the Kubernetes control plane (replace 1.28.0
with your desired version):
Copy sudo kubeadm init --kubernetes-version=1.28.0
Follow these steps carefully to set up your Kubernetes control plane successfully. Make sure to adjust the versions and configurations as needed for your specific requirements. At the end of the steps, your instance must be configured.
To start the cluster you need the following steps:
Run the mentioned commands with root
user
Copy mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf SHOME/.kube/config
sudo chown $(id -u):$ (id -g) $HOME/.kube/config
Now we need to install the network plugin in Kubernetes.
Can be installed onto your CNI-enabled Kubernetes cluster with a single command:
Copy sudo kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml
After completing this process, you now have your control plane cluster installed and configured.
To test whether it is working as expected, you can check the node status.
Copy sudo kubectl get nodes -o wide
Last updated 5 months ago