- name: Install some packages required for the firewall
  apt: pkg={{ item }}
  with_items:
    - iptables
    - netmask
    - bsdutils

- name: Create directory /etc/iptables
  file: path=/etc/iptables
        state=directory
        owner=root group=root
        mode=0755

- name: Generate /etc/iptables/services
  template: src=etc/iptables/services.j2
            dest=/etc/iptables/services
            owner=root group=root
            mode=0600

- name: Copy /usr/local/sbin/update-firewall.sh
  copy: src=usr/local/sbin/update-firewall.sh
        dest=/usr/local/sbin/update-firewall.sh
        owner=root group=root
        mode=0755

- name: Make the rulesets persistent
  copy: src=etc/network/{{ item }}
        dest=/etc/network/{{ item }}
        owner=root group=root
        mode=0755
  with_items:
    - if-pre-up.d/iptables
    - if-post-down.d/iptables

- name: Ensure the firewall is up to date
  command: /usr/local/sbin/update-firewall.sh -c
  register: rv
  # A non-zero return value will make ansible stop and show stderr. This
  # is what we want.
  changed_when: rv.rc