---
- name: Install Varnish
  apt:
    name: varnish
    state: present

- name: Remove default varnish configuration files
  file:
    path: "{{ item }}"
    state: absent
  with_fileglob: "/etc/defaults/varnish*"

- name: Copy Custom Varnish ExecReload script
  copy:
    src: "reload-vcl.sh"
    dest: "/etc/varnish/reload-vcl.sh"
    mode: "700"
    owner: root
    group: root

- name: Create a system config directory for systemd overrides
  file:
    path: /etc/systemd/system/varnish.service.d
    state: directory

- name: Modify Varnish configuration files
  ini_file:
    dest: /etc/systemd/system/varnish.service.d/varnish.service
    section: Service
    option: "{{ item.option }}"
    value: "{{ item.value }}"
  notify: reload systemctl
  with_items:
    - { option: ExecStart, value: "/usr/sbin/varnishd -a 0.0.0.0:80 -T localhost:6082 -f /etc/varnish/default.vcl -S /etc/varnish/secret -s malloc,{{ malloc }} -p thread_pools={{ thread_pools }} -p thread_pool_add_delay=2 -p thread_pool_min=500 -p thread_pool_max=5000 "}
    - { option: ExecReload, value: "/etc/varnish/reload-vcl.sh" }