master.yml

---
- hosts: "masters"
  remote_user: centos
  become: yes
  become_method: sudo
  become_user: root
  gather_facts: yes
  connection: ssh
  tasks:
    - name: Create kubeadm-config file
      shell: |
               cat <<EOF | sudo tee /home/centos/kubeadm-config.yaml
               kind: ClusterConfiguration
               apiVersion: kubeadm.k8s.io/v1beta3
               kubernetesVersion: v1.24.0
               networking:
                 podSubnet: 172.31.0.0/16 
               ---
               kind: KubeletConfiguration
               apiVersion: kubelet.config.k8s.io/v1beta1
               cgroupDriver: systemd
               EOF

    - name: initialize the cluster
      shell: cd /home/centos && kubeadm init --config kubeadm-config.yaml 
      args:
        chdir: $HOME
        creates: cluster_initialized.txt

    - name: export kubeconfig
      shell: |
              mkdir -p $HOME/.kube
              sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
              sudo chown $(id -u):$(id -g) $HOME/.kube/config
              export KUBECONFIG=/etc/kubernetes/admin.conf
              
    - name: install Pod network
      shell: |
              kubectl apply -f "https://cloud.weave.works/k8s/net?k8s-version=$(kubectl version | base64 | tr -d '\n')" >> pod_network_setup.txt
      args:
        chdir: $HOME
        creates: pod_network_setup.txt

    - name: Control plane enable
      shell: |
              kubectl taint nodes --all node-role.kubernetes.io/master-