{% set swapfile = salt['pillar.get']('swapfile', {}) %}
{% set size = swapfile.get('size', grains["mem_total"]) %}
{% set path = swapfile.get('path', '/swapfile') %}

{{ path }}:
  cmd.run:
    - name: |
        swapon --show=NAME --noheadings | grep -q "^{{ path }}$" && swapoff {{ path }}
        rm -f {{ path }}
        dd if=/dev/zero of={{ path }}  bs=1M count={{ size }}
        chmod 0600 {{ path }}
        mkswap {{ path }}
    - unless: bash -c '[[ $(($(stat -c %s {{ path }}) / 1024**2)) = {{ size }} ]]'

  mount.swap:
    - persist: true