| - name: Install firewall package (ferm)  apt: pkg={{ item }} state=installed update_cache=yes  with_items:    - linux-image-{{ facter_architecture }}    - ferm  when: with_firewall- name: Install firewall configuration (ferm.conf)  template: src=ferm/ferm.conf.j2 dest=/etc/ferm/ferm.conf owner=root group=root mode=0644  notify:    - Apply firewall rules (ferm)  when: with_firewall
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