Implement the custom role concept

- Custom Ansible roles can be stored in the `roles/custom` directory
- The list `custom_roles` determines which roles are included

roles/lmn_fvs/files/reporter

@@ -1,33 +0,0 @@
-#!/usr/bin/bash
-#
-# Send stdout of some commands to monitoring server.
-# Collect the reports with 'nc -u -k -l 1234' on 'sendto'.
-# Use /bin/nc.openbsd, /bin/nc.traditional seems not to work.
-#
-set -eu
-
-sendto="collector.steinbeis.schule 1234"
-n=0
-
-cmds=(
-    'uname -a'
-    'tail -1 /var/local/ansible-stamps'
-    'ip route list default'
-    'ip link show | \
-       sed -nE -e "s/^[2-9]: (\S+): .+/\1/p" -e "s/.+ether ([0-9a-f:]+) .+/\1/p" | \
-       paste - -'
-)
-#    'w'
-#    'uptime'
-#    'ls -d --full-time /home/ansible/.ansible/tmp/'
-#    'ip addr show'
-#    'apt list --upgradeable -o Apt::Cmd::Disable-Script-Warning=true'
-
-r="$HOSTNAME ------- $(date --rfc-3339=seconds) -------
-$(for c in "${cmds[@]}" ; do
-      n=$(( n + 1 ))
-      echo -n "$n"
-      eval "$c" | sed 's/^/\t/'
-done | sed "s/^/$HOSTNAME /")
-## -------------------------------------------------"
-echo "$r" | nc -w 1 -u $sendto