Role tweaks (#268)

* Limited boolean values to true/false;

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

* Moved ArchLinux prereq task to be a handler;

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

* Standardized task name for adding cgroup support;

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

* Have backrefs: follow path:;

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

* Addressed ansible-lint errors;

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

* Fixed #264, task 7: Copy K3s service file;

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

---------

Signed-off-by: Jon S. Stumpf <jon.stumpf@gmail.com>

roles/raspberrypi/tasks/prereq/Raspbian.yml

@@ -1,10 +1,10 @@
 ---
-- name: Activating cgroup support
+- name: Enable cgroup via boot commandline if not already enabled
   ansible.builtin.lineinfile:
     path: /boot/cmdline.txt
+    backrefs: true
     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 Pi
 
 - name: Gather the package facts