zabbix-helpers/lxc_fs_monitoring/zabbix_agent_user_parameter

UserParameter=lxc.filesystem.usage[*],/usr/local/bin/get_fs_status.sh "$1" usage
UserParameter=lxc.filesystem.available[*],/usr/local/bin/get_fs_status.sh "$1" available
UserParameter=lxc.filesystem.usage.percent[*],/usr/local/bin/get_fs_status.sh "$1" percent