---
- hosts: k8s
  - name: Disable all swaps from /proc/swaps
    shell: |
      swapoff --all

  - name: Disable SWAP in fstab
    lineinfile:
      path: /etc/fstab
      regexp: 'swap'
      state: absent

  - name: Add Google GPG key
    apt_key:
      url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
      state: present

  - name: Add Kubernetes' APT repository
    apt_repository:
      repo: deb http://apt.kubernetes.io/ kubernetes-xenial main
      state: present
      filename: 'kubernetes'
      mode: 0600

  - name: Installing Kubernetes Cluster Packages
    apt:
      name: "{{ item }}"
      state: present
      cache_valid_time: "{{ aptcachetime }}"
    with_items:
      - kubelet-{{kubelet_version}}
      - kubeadm
      - kubectl
    loop: [ 'kubeadm', 'kubectl', 'kubelet' ]

  - name: Enable service kubelet persistently
    service:
      name: kubelet
      enabled: yes

# TODO ???
#  - name: Reboot all the kubernetes nodes.
#    reboot:
#      post_reboot_delay: 10
#      reboot_timeout: 40
#      connect_timeout: 60
#      test_command: uptime
...