---
- name: Ensure dependencies are installed.
  apt:
    name:
      - apt-transport-https
      - ca-certificates
    state: present

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

- name: Add Kubernetes repository.
  apt_repository:
    repo: "{{ kubernetes_apt_repository }}"
    state: present
    update_cache: true

- name: Install kubeadm kubelet kubectl
  apt:
    pkg:
      - kubeadm={{ k8s_version }}-00
      - kubelet={{ k8s_version }}-00
      - kubectl={{ k8s_version }}-00
      - kubernetes-cni=0.7.5-00
    update_cache: yes
  notify: restart kubelet

- name: Add Kubernetes apt preferences file to pin a version.
  template:
    src: apt-preferences-kubernetes.j2
    dest: /etc/apt/preferences.d/kubernetes

- name:
  template:
    src: daemon.json
    dest: /etc/docker/daemon.json
  notify: restart docker daemon