--- - hosts: all vars: nginx_use_ppa: true nginx_remove_default_vhost: true nginx_vhosts: - server_name: "test.dev" root: "/var/www/test" pre_tasks: - name: Update apt cache. apt: update_cache=yes cache_valid_time=86400 when: ansible_os_family == 'Debian' - name: Install dependencies. package: name=curl roles: - role_under_test