Refactor alarm compose service and systemctl templates

- Fixed bug where not both alarm services (email + telegram) were triggered.
- Removed direct OnFailure references for email and telegram,
  now handled by unified compose service.
- Introduced 01_core.yml in sys-ctl-alm-compose to structure
  role execution (subservices → core service → test run).
- Added configurable variables SYSTEMCTL_ALARM_COMPOSER_SUBSERVICES
  and SYSTEMCTL_ALARM_COMPOSER_DUMMY_MESSAGE.
- Replaced dedicated @.service template with generic systemctl template
  using systemctl_tpl_* variables for flexibility.
- Updated script.sh.j2 to collect exit codes and print clear errors.
- Fixed typos and streamlined vars in sys-systemctl.

See conversation: https://chatgpt.com/share/68a46172-7c3c-800f-a69c-0cb9edd6839f

roles/sys-ctl-alm-compose/tasks/01_core.yml

@@ -0,0 +1,25 @@
+- name: "Include dependent services for '{{ systemctl_id }}'"
+  include_role:
+    name: '{{ item }}'
+  loop:
+    - sys-ctl-alm-telegram
+    - sys-ctl-alm-email
+  vars:
+    flush_handlers: true
+    systemctl_timer_enabled: false
+    systemctl_copy_files: true
+
+- name: "Include core service for '{{ systemctl_id }}'"
+  include_role:
+    name: sys-systemctl
+  vars:
+    flush_handlers: true
+    systemctl_timer_enabled: false
+    systemctl_copy_files: true
+    systemctl_tpl_exec_start: "{{ systemctl_script_exec }} %i"
+    systemctl_tpl_on_failure: "" # No on failure needed, because it's anyhow the default on failure procedure
+
+- name: "Send message to test service."
+  systemd:
+    name: "sys-ctl-alm-compose@{{ SYSTEMCTL_ALARM_COMPOSER_DUMMY_MESSAGE }}.service"
+    state: started

roles/sys-ctl-alm-compose/tasks/main.yml

@@ -1,14 +1,4 @@
 - block:
-  - name: "Include '{{ systemctl_id }}'"
-    include_role:
-      name: '{{ item }}'
-    loop:
-      - sys-ctl-alm-telegram
-      - sys-ctl-alm-email
-      - sys-systemctl
-    vars:
-      flush_handlers: true
-      systemctl_timer_enabled: false
-      systemctl_copy_files: false
+  - include_tasks: 01_core.yml
   - include_tasks: utils/run_once.yml
   when: run_once_sys_ctl_alm_compose is not defined

roles/sys-ctl-alm-compose/templates/script.sh.j2

@@ -0,0 +1,11 @@
+#!/bin/bash
+err=0
+set -u
+{% for alarm_service in SYSTEMCTL_ALARM_COMPOSER_SUBSERVICES %}
+{% set alarm_service_full_name = alarm_service | get_service_name(SOFTWARE_NAME, '"$1".service') %}
+if ! /usr/bin/systemctl start {{ alarm_service_full_name }}; then
+  echo "ERROR: Failed to start {{ alarm_service_full_name }}" >&2
+  err=1
+fi
+{% endfor %}
+exit $err

roles/sys-ctl-alm-compose/templates/systemctl@.service.j2

@@ -1,10 +0,0 @@
-[Unit]
-Description={{ SOFTWARE_NAME }} - Alarm Notifier for %i
-
-[Service]
-Type=oneshot
-{% for alarm_service in [ SYS_SERVICE_ON_FAILURE_EMAIL, SYS_SERVICE_ON_FAILURE_TELEGRAM ] %}
-ExecStart=/usr/bin/systemctl start {{ alarm_service }}
-{% endfor %}
-User=root
-Group=systemd-journal

roles/sys-ctl-alm-compose/vars/main.yml

@@ -1 +1,7 @@
-systemctl_id: sys-ctl-alm-compose@
+systemctl_id: sys-ctl-alm-compose@
+
+SYSTEMCTL_ALARM_COMPOSER_SUBSERVICES:
+  - 'sys-ctl-alm-email'
+  - 'sys-ctl-alm-telegram'
+
+SYSTEMCTL_ALARM_COMPOSER_DUMMY_MESSAGE: "[Info] Dummy Message: No Failure; Ansible is initializing {{ SOFTWARE_NAME }} on {{ inventory_hostname }}."