---
- name: create logical volume for docker
  lvol:
    vg: "{{ host_name }}"
    lv: docker
    size: 20g

- name: create filesystem for docker
  filesystem:
    fstype: ext4
    dev: "/dev/mapper/{{ host_name | replace('-', '--') }}-docker"

- name: mount filesytem for docker
  mount:
    src: "/dev/mapper/{{ host_name | replace('-', '--') }}-docker"
    path: /var/lib/docker
    fstype: ext4
    state: mounted

- name: install needed packages
  apt:
    name:
      - docker.io
      - mdadm