---
- 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', 'kubeadm', 'kubectl', 'kubernetes-cni']
    state: latest
  register: result
  retries: 3
  until: result is success