k8s.yml

- hosts: all
  remote_user: ec2-user
  become: true
  tasks:
   - name: swap disable
     shell: swapoff -a
   - name: selinux disable
     shell: "setenforce  0;sed -i 's/SELINUX=enforcing/SELINUX=disabled/'  /etc/selinux/config"
   - name: enable kernel bridge 
     shell: "modprobe br_netfilter;echo '1' > /proc/sys/net/bridge/bridge-nf-call-iptables"
   - name: configure yum repo 
     yum_repository:
      name: epel
      description: google YUM repo
      file: k8sgoogle
      baseurl: https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
      gpgcheck: no

   - name: installing docker and kubelet 
     yum: 
      name: "{{ item }}"
      state: present
     loop: 
      - docker
      - kubeadm
   - name: starting service of docker 
     service:
      name: docker
      state: started
      enabled: yes
   - name: starting service of kubelet 
     service:
      name: kubelet
      state: started
      enabled: yes

- hosts: minion
  remote_user: ec2-user
  become: true
  tasks:
   - name: installing master node
     shell: "kubeadm join 172.31.74.3:6443 --token 12vesa.lqlbc56m8x2hses7 \
    --discovery-token-ca-cert-hash sha256:939c20e4ac13b1da54ca5217fe6d0039bf07e39c18b032c9747f2400f29ef9c1"