main.yaml

- name: Setup nginx
  hosts: all
  become: true

  vars:
    nginx_file: mysite
    site_a: /etc/nginx/sites-available
    site_e: /etc/nginx/sites-enabled

  vars_prompt:
    - name: nginx
      prompt: Install nginx?
      private: false
      default: false

  tasks:
    - name: Install nginx
      ansible.builtin.apt:
        name: nginx
        state: present
        update_cache: true
      when: nginx | bool
    - name: Setup nginx
      ansible.builtin.copy:
        src: "{{nginx_file}}"
        dest: "{{site_a}}"
      notify:
        - reload nginx
    - name: Create symlink
      ansible.builtin.file:
        src:  "{{site_a}}/{{nginx_file}}"
        dest: "{{site_e}}/{{nginx_file}}"
        state: link
        owner: root
        group: root
      notify:
        - reload nginx

  handlers:
    - name: reload nginx
      ansible.builtin.shell: nginx -s reload