ZBX_NOTSUPPORTED Unknown metric from cli, but works fine in web?

[ddrucker]

I have zabbix-agent2 running on a host, and I am using the Docker template on my server (6.4). In the web interface, Docker information is being collected just fine.


But if I try to collect that information from the CLI:

root@my-docker-host# zabbix_agent2 -t docker.containers.stopped
docker.containers.stopped [m|ZBX_NOTSUPPORTED] [Unknown metric docker.containers.stopped]

root@my-zabbix-server# zabbix_get -k docker.containers.stopped -s eco.3e.org
ZBX_NOTSUPPORTED: Unknown metric docker.containers.stopped


What am I doing wrong here?

[cyber]

based on https://www.zabbix.com/documentation.../zabbix_agent2
there is no such key that agent knows called as "docker.containers.stopped". If you look closer. you will see, that it is a "dependent item" in that template. Meaning, it gets its data from master item via preprocessing and you cannot poll it directly from agent.

https://www.zabbix.com/integrations/docker#docker

Docker: Containers stopped

Total number of containers stopped on this host.

Dependent item

docker.containers.stopped Preprocessing JSON Path: $.ContainersStopped

[ddrucker]

Ah I understand now! Thank you!