kube-tools.yaml

- hosts: all
  become: yes
  tasks:
   - name: update repository dependency
     apt: 
        update_cache: yes
   - name: install remote apt deps
     apt:
       name: "{{ item }}"
       state: present
     with_items:
       - apt-transport-https
       - ca-certificates
       - gnupg2
       - software-properties-common

   - name: add Docker apt-key
     apt_key:
       url: https://download.docker.com/linux/ubuntu/gpg
       state: present

   - name: add Docker's APT repository
     apt_repository:
      repo: deb https://download.docker.com/linux/ubuntu bionic stable
      state: present
      filename: 'docker'

   - name: install Docker
     apt:
      name: docker-ce
      state: present
      update_cache: true

   - name: add Kubernetes apt-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 https://apt.kubernetes.io/ kubernetes-xenial main
      state: present
      filename: 'kubernetes'

   - name: install kubelet
     apt:
       name: kubelet=1.18.5-00
       state: present
       update_cache: true

   - name: install kubeadm
     apt:
       name: kubeadm=1.18.5-00
       state: present

- hosts: master
  become: yes
  tasks:
   - name: install kubectl
     apt:
       name: kubectl=1.18.5-00
       state: present
       force: yes