Fix Raspberry tasks for Debian (#151)

    ( ansible_facts.lsb.id|default("") == "Raspbian" or

      ansible_facts.lsb.description|default("") is match("[Rr]aspbian.*") )

- name: Set detected_distribution to Raspbian (ARM64 on Debian Buster)

- name: Set detected_distribution to Debian

  set_fact:

    detected_distribution: Raspbian

  when:

    - ansible_facts.architecture is search("aarch64")

    - raspberry_pi|default(false)

    - ansible_facts.lsb.description|default("") is match("Debian.*buster")

    detected_distribution: Debian

  when: >

    raspberry_pi|default(false) and

    ( ansible_facts.lsb.id|default("") == "Debian" or

      ansible_facts.lsb.description|default("") is match("Debian") )

- name: Set detected_distribution_major_version

  set_fact:

    detected_distribution_major_version: "{{ ansible_facts.lsb.major_release }}"

  when:

    - detected_distribution | default("") == "Raspbian"

  when: > 

    ( detected_distribution | default("") == "Raspbian" or

      detected_distribution | default("") == "Debian" )

- name: execute OS related tasks on the Raspberry Pi

  include_tasks: "{{ item }}"

---

- name: Check if /boot/firmware/cmdline.txt exists

  stat:

    path: /boot/firmware/cmdline.txt

  register: boot_firmware_cmdline_txt

- name: Activating cgroup support

  lineinfile:

    path: "{{ (boot_firmware_cmdline_txt.stat.exists) | ternary('/boot/firmware/cmdline.txt', '/boot/cmdline.txt') }}"

    regexp: '^((?!.*\bcgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory\b).*)$'

    line: '\1 cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory'

    backrefs: true

  notify: reboot

- name: Install iptables

  apt:

    name: iptables

- name: Flush iptables before changing to iptables-legacy

  iptables:

    flush: true

  changed_when: false   # iptables flush always returns changed

- name: Changing to iptables-legacy

  alternatives:

    path: /usr/sbin/iptables-legacy

    name: iptables

  register: ip4_legacy

- name: Changing to ip6tables-legacy

  alternatives:

    path: /usr/sbin/ip6tables-legacy

    name: ip6tables

  register: ip6_legacy