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/alert-email/templates/alert-email.sh.j2

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+/usr/bin/sendmail -t <<ERRMAIL
+To: {{ users.administrator.email }}
+From: systemd <{{ users['no-reply'].email }}>
+Subject: $1
+Content-Transfer-Encoding: 8bit
+Content-Type: text/plain; charset=UTF-8
+
+A problem with the service $1 occured:
+
+$(systemctl status --full "$1" | head -n 30)
+
+
+ERRMAIL