What should return an external chexk discover script ?

[pierreC]

I've wrote a script that list the objects I want to monitor via SNMP.

I execute it in a template on a discovery rule by external check.

Problem, I don't known what I should return to zabbix at the end of my script.

Should I just do a 1 line print on Json format that should be like that ?

print "{"jsonrpc": "2.0","method": "SOMETHING","data": [{"{#ID}": "1","{#INFORMATION}": "info"},{"{#ID}": "2","{#INFORMATION}": "info"},{....}]";

[pierreC]

Update on this thread.
I've finish my script, it work well and here is an example of what it print when it's executed :

{
	"data":[

	{
		"{#INTNAME}":"34",
		"{#CLASSMAPNAME}":"QoS-Dom-Test-Drop-ICMP"
		"{#IDINTCONF}":"544"
		"{#IDCLASSMAPCONF}":"2508401"
	}
	{
		"{#INTNAME}":"34",
		"{#CLASSMAPNAME}":"AutoQos-VoIP-Control-Dscp24"
		"{#IDINTCONF}":"544"
		"{#IDCLASSMAPCONF}":"5771057"
	}
	{
		"{#INTNAME}":"34",
		"{#CLASSMAPNAME}":"AutoQos-VoIP-Control-Dscp26"
		"{#IDINTCONF}":"544"
		"{#IDCLASSMAPCONF}":"5771089"
	}
	]
}

attached to this post is how I configure my discover.

when I apply it to a host, zabbix return me this error : value should be a JSON object

I've try to verify how my script is called by zabbix by writting the argument which with the script is called by zabbix on a txt file but when I open this .txt, it's empty. I've test by calling the script myself and the .txt is filled. So I don't known if zabbix is really calling my script.
The script is located on /usr/lib/zabbix/extenalscripts.

[batchenr]

Update on this thread.
I've finish my script, it work well and here is an example of what it print when it's executed :

{
	"data":[

	{
		"{#INTNAME}":"34",
		"{#CLASSMAPNAME}":"QoS-Dom-Test-Drop-ICMP"
		"{#IDINTCONF}":"544"
		"{#IDCLASSMAPCONF}":"2508401"
	}
	{
		"{#INTNAME}":"34",
		"{#CLASSMAPNAME}":"AutoQos-VoIP-Control-Dscp24"
		"{#IDINTCONF}":"544"
		"{#IDCLASSMAPCONF}":"5771057"
	}
	{
		"{#INTNAME}":"34",
		"{#CLASSMAPNAME}":"AutoQos-VoIP-Control-Dscp26"
		"{#IDINTCONF}":"544"
		"{#IDCLASSMAPCONF}":"5771089"
	}
	]
}

attached to this post is how I configure my discover.

when I apply it to a host, zabbix return me this error : value should be a JSON object

I've try to verify how my script is called by zabbix by writting the argument which with the script is called by zabbix on a txt file but when I open this .txt, it's empty. I've test by calling the script myself and the .txt is filled. So I don't known if zabbix is really calling my script.
The script is located on /usr/lib/zabbix/extenalscripts.

try:

https://support.zabbix.com/browse/ZBX-7854

https://github.com/YetOpen/zabbix-scripts/issues/3

[pierreC]

Thank you,
there were 2 issues in cause :

• The lack of comma in my printing, here is my new JSON result

• Warning printing because mibs missing. Not important when you use snmpwalk but zabbix read all the line printed, warning includes

{
	"data":[

	{
		"{#INTNAME}":"GigabitEthernet3/1",
		"{#CLASSMAPNAME}":"QoS-Dom-Test-Drop-ICMP",
		"{#IDINTCONF}":"544",
		"{#IDCLASSMAPCONF}":"2508401"
	},
	{
		"{#INTNAME}":"GigabitEthernet3/1",
		"{#CLASSMAPNAME}":"AutoQos-VoIP-Control-Dscp24",
		"{#IDINTCONF}":"544",
		"{#IDCLASSMAPCONF}":"5771057"
	},
	{
		"{#INTNAME}":"GigabitEthernet3/1",
		"{#CLASSMAPNAME}":"AutoQos-VoIP-Control-Dscp26",
		"{#IDINTCONF}":"544",
		"{#IDCLASSMAPCONF}":"5771089"
	}
	]
}