Huge role refactoring/cleanup. Other commits will propably follow. Because some bugs will exist. Still important for longrun and also for auto docs/help/slideshow generation

roles/maintenance-btrfs-auto-balancer/tasks/main.yml

@@ -0,0 +1,30 @@
+- name: "pkgmgr install"
+  include_role:
+    name: pkgmgr-install
+  vars:
+    package_name: btrfs-auto-balancer
+  when: run_once_system_btrfs_auto_balancer is not defined
+
+- name: configure maintenance-btrfs-auto-balancer.cymais.service
+  template: 
+    src: maintenance-btrfs-auto-balancer.service.j2
+    dest: /etc/systemd/system/maintenance-btrfs-auto-balancer.cymais.service
+  notify: reload maintenance-btrfs-auto-balancer.cymais.service
+  when: run_once_system_btrfs_auto_balancer is not defined
+
+- name: set service_name to the name of the current role
+  set_fact:
+    service_name: "{{ role_name }}"
+  when: run_once_system_btrfs_auto_balancer is not defined
+
+- name: "include role for generic-timer for {{service_name}}"
+  include_role:
+    name: generic-timer
+  vars:
+    on_calendar:  "{{on_calendar_btrfs_auto_balancer}}"
+  when: run_once_system_btrfs_auto_balancer is not defined
+
+- name: run the system_btrfs_auto_balancer tasks once
+  set_fact:
+    run_once_system_btrfs_auto_balancer: true
+  when: run_once_system_btrfs_auto_balancer is not defined