---
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# Disable swap
# https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#before-you-begin
################################################################################

- name: Get swap status.
  command: swapon -s
  # It's unclear why you need to be root for this commend. This command works
  # fine manually as the admin user, but the only way I could get this role to
  # work was to become root.
  become: true
  changed_when: false
  register: swap_status

- name: Disable swap if needed.
  command: swapoff -a
  become: true
  changed_when: true
  when: swap_status.stdout | length > 0

- name: comment out swap in fstab.
  replace:
    path: /etc/fstab
    regexp: '^([^#].*swap.*)$'
    replace: '# \1'
  become: true