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- hosts: webservers
  vars:
    root_dir: /var/tmp/www

  tasks:
    - name: update nginx config
      # use template engine for src file
      template: src=templates/nginx.conf.j2 dest={{ root_dir }}/nginx.conf
  
    - name: update index.html
      copy: src=files/index.html dest={{ root_dir }}/index.html