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Install kubernetes on an ec2 instance ubuntu 20.04 using kubeadm and turn this instance into a master node.

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Install kubernetes on an ec2 instance ubuntu 20.04 using kubeadm and turn this instance into a master node.
  1. 1

    Update and upgrade the system packages

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    Ensure the system packages are up to date before installing Kubernetes.
    sudo apt update sudo apt upgrade -y
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  2. 2

    Install Docker

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    Install Docker as it is a prerequisite for running Kubernetes components.
    sudo apt install docker.io -y sudo systemctl enable docker sudo systemctl start docker
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  3. 3

    Install kubeadm, kubelet, and kubectl for master node

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    Install the Kubernetes components on the ec2 instance.

    sudo apt install -y apt-transport-https curl echo "deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /" | sudo tee /etc/apt/sources.list.d/kubernetes.list curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg sudo apt update sudo apt install -y kubeadm kubelet kubectl sudo apt-mark hold kubeadm kubelet kubectl
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  4. 4

    Initialize the Kubernetes cluster and configure ec2 instance as a master node

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    Use kubeadm to initialize the cluster and configure the ec2 instance as a master node.

    sudo kubeadm init --pod-network-cidr=10.244.0.0/16 mkdir -p $HOME/.kube sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config sudo chown $(id -u):$(id -g) $HOME/.kube/config kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
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