---
- hosts: localhost
  tasks:
    - name: Install tinc and ping
      apt:
        name: [ 'tinc', 'iputils-ping' ]
        state: latest

    - name: Adding Kubernetes official gpg key
      apt_key:
        url: "{{ kubernetes_apt_key }}"
        state: present

    - name: Adding Kubernetes repository
      apt_repository:
        repo: "deb http://apt.kubernetes.io/ kubernetes-{{ kubernetes_release }} {{ kubernetes_apt_channel }}"
        state: present
        filename: 'kubernetes'

    - name: Installing kubernetes core components (kubectl, kubelet ...)
      apt:
        name: ['kubelet={{kubernetes_version_apt}}', 'kubeadm={{kubernetes_version_apt}}', 'kubectl={{kubernetes_version_apt}}']
      register: result
      retries: 3
      until: result is success

    - name: Get the kernel revision
      shell: "uname -r"
      register: kernel
      changed_when: False
      check_mode: False

    - name: Try install linux-image
      apt:
        state: present
        name: "{{ 'linux-image-' + kernel.stdout }}"
      register: result
      failed_when: False

    - name: modprobe
      modprobe:
        name: "{{ item }}"
        state: present
      with_items:
      - ip_vs
      - nf_conntrack_ipv4

    - name: /etc/modules
      lineinfile:
        path: /etc/modules
        line: "{{ item }}"
      with_items:
        - ip_vs
        - nf_conntrack_ipv4
  roles:
    - role: docker