Merge pull request #513 from tamsky/ansible/improve-raspbian-checks

---

- name: Test for Raspbian

  stat:

    path: /boot/cmdline.txt

  register: cmdline

- name: Activating cgroup on Raspbian

  lineinfile:

    path: /boot/cmdline.txt

    regexp: '^(.*rootwait)$'

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

    backrefs: true

  when: ( ansible_facts.architecture is search "arm" )

  when: ( cmdline.stat.path is defined )

          and

        ( ansible_facts.architecture is search("arm") )

  register: boot_cmdline

- name: Rebooting on Raspbian 

  shell: reboot now

  ignore_errors: true

  when: ( ansible_facts.architecture is search "arm" )

  when: ( boot_cmdline | changed )

          and

        ( ansible_facts.architecture is search("arm") )