---
# Create swap file on low-memory servers

- name: Check if swap file exists
  ansible.builtin.stat:
    path: /swapfile
  register: swap_check

- name: Create swap file
  when: not swap_check.stat.exists
  block:
    - name: Allocate swap file
      ansible.builtin.command:
        cmd: "dd if=/dev/zero of=/swapfile bs=1M count={{ swap_size_mb }}"
      changed_when: true

    - name: Set swap file permissions
      ansible.builtin.file:
        path: /swapfile
        mode: "0600"

    - name: Format swap file
      ansible.builtin.command:
        cmd: mkswap /swapfile
      changed_when: true

    - name: Enable swap file
      ansible.builtin.command:
        cmd: swapon /swapfile
      changed_when: true

    - name: Add swap to fstab
      ansible.builtin.lineinfile:
        path: /etc/fstab
        line: "/swapfile none swap sw 0 0"
        state: present