GRANT SELECT ON *.* TO zabbix@localhost IDENTIFIED BY 'mypassword';

zabbix_agentd.conf

UserParameter=mysql.ping,mysqladmin -uzabbix -pmypassword   ping|grep alive|wc -l
UserParameter=mysql.uptime,mysqladmin -uzabbix -pmypassword status|cut -f2 -d":"|cut -f2 -d" "

/etc/sudoers.d/zabbix

zabbix ALL=(ALL) NOPASSWD:/usr/sbin/smartctl

chmod 440 /etc/sudoers.d/zabbix

/etc/zabbix/zabbix_agent2.d/feser-user-params.conf

UserParameter=cputemp,cat /sys/class/thermal/thermal_zone0/temp |awk '{print $1/1000}'
UserParameter=hddtemp,sudo /usr/sbin/smartctl -A /dev/sdb | grep Temperature_Celsius | awk '{print $10}'