- name: Install prerequisits
  apt:
    name: "{{ item }}"
    update_cache: true
  loop:
    - apt-transport-https
    - ca-certificates
    - curl

- name: Enable modules
  community.general.modprobe:
    name: "{{ item }}"
    state: present
  loop:
    - overlay
    - br_netfilter

- name: Enable modules persistantly
  lineinfile:
    path: /etc/modules
    line: "{{ item }}"
    state: present
    insertafter: EOF
  loop:
    - overlay
    - br_netfilter

- name: Set br_netfilter sysctl parameters
  ansible.posix.sysctl:
    name: "{{ item }}"
    state: present
    value: '1'
    sysctl_set: true
    sysctl_file: /etc/sysctl.d/99-kubernetes-cri.conf
  loop:
    - net.bridge.bridge-nf-call-iptables
    - net.ipv4.ip_forward
    - net.bridge.bridge-nf-call-ip6tables

- name: Install kubernetes repo key
  apt_key:
    url: https://packages.cloud.google.com/apt/doc/apt-key.gpg
    state: present

- name: Install kubernetes repo 
  apt_repository: 
    repo: "deb https://apt.kubernetes.io/ kubernetes-xenial main"
    state: present
    filename: kubernetes

- name: Install kubeadm
  apt:
    name: "{{ item }}"
    allow_downgrade: true
    state: present
  loop:
    - "kubectl=1.22.1-00"
    - "kubelet=1.22.1-00"
    - "kubeadm=1.22.1-00"

- name: Hold kubeadm
  dpkg_selections:
    name: "{{ item }}"
    selection: hold
  loop:
    - kubeadm
    - kubelet
    - kubectl