resize_swap.yml

---

- name: Change the swap to given size in gigabytes
  hosts: all
  user: root
  vars:
    size: 4
  tasks:
  - name: find existing swap size
    shell: lvs --noheadings --separator , --units g | grep swap_1 | cut -f 4 -d ,
    register: swap_size

  - name: disable swap
    command: swapoff -a
    when: swap_size.stdout != "{{ size }}.00g"
    notify: activate swap

  - name: resize swap lvol
    lvol: vg={{ ansible_hostname }}-vg lv=swap_1 size={{ size }}G force=yes
    notify: mkswap

  handlers:
  - name: mkswap
    command: mkswap /dev/{{ansible_hostname}}-vg/swap_1

  - name: activate swap
    command: swapon -a