template: sample scripts for each function. also reworked the backup script + checked it with actual_server

template/example_server-teardown

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+username=example_server
+
+# application
+sudo docker compose -f /home/${username}/${username}-compose.yaml down -v
+
+uid_num=$(id -u $username)
+sudo killall -9 -v -g -u $username
+sudo crontab -r -u $username
+sudo deluser --remove-all-files $username
+
+# clean-up
+sudo find / -user "$uid_num" -delete
+