Zabbix Agent2 shows Docker Offline

[Thijs]

Hi!

I've recently upgraded to Zabbix 5.0.1 on ubuntu server 18.04.2 However i'm running into trouble loading docker data into Zabbix using the new Agent2 with the Docker plugin.

In the zabbix-agent2.conf i've uncommented the line:

Plugins.Docker.Endpoint=unix:///var/run/docker.sock

and then

 sudo systemctl restart zabbix-agent2

to apply the changes made to the config.

Then i've added the template from the official docker intergration and added the template to the host with the new agent2.

However when checking the latest data it shows

 2020-06-26 10:53:40    Down (0)

with no other data showing.
The log is as follows:

2020/06/26 11:11:36.193323 Starting Zabbix Agent 2 [Zabbix server]. (5.0.1)
2020/06/26 11:11:36.193832 OpenSSL library (OpenSSL 1.1.1  11 Sep 2018) initialized
2020/06/26 11:11:36.193986 using configuration file: /etc/zabbix/zabbix_agent2.conf
2020/06/26 11:11:36.194056 using plugin ‘Agent’ providing following interfaces: exporter
2020/06/26 11:11:36.194064 using plugin ‘Cpu’ providing following interfaces: exporter, collector, runner
2020/06/26 11:11:36.194070 using plugin ‘Docker’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194096 using plugin ‘File’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194102 using plugin ‘Kernel’ providing following interfaces: exporter
2020/06/26 11:11:36.194107 using plugin ‘Log’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194120 using plugin ‘Memcached’ providing following interfaces: exporter, runner, configurator
2020/06/26 11:11:36.194124 using plugin ‘Mysql’ providing following interfaces: exporter, runner, configurator
2020/06/26 11:11:36.194133 using plugin ‘NetIf’ providing following interfaces: exporter
2020/06/26 11:11:36.194139 using plugin ‘Postgres’ providing following interfaces: exporter, runner, configurator
2020/06/26 11:11:36.194155 using plugin ‘Proc’ providing following interfaces: exporter, collector
2020/06/26 11:11:36.194160 using plugin ‘Redis’ providing following interfaces: exporter, runner, configurator
2020/06/26 11:11:36.194168 using plugin ‘SystemRun’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194173 using plugin ‘Systemd’ providing following interfaces: exporter
2020/06/26 11:11:36.194179 using plugin ‘TCP’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194256 using plugin ‘UDP’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194261 using plugin ‘Uname’ providing following interfaces: exporter
2020/06/26 11:11:36.194266 using plugin ‘Uptime’ providing following interfaces: exporter
2020/06/26 11:11:36.194271 using plugin ‘VFSDev’ providing following interfaces: exporter, collector
2020/06/26 11:11:36.194276 using plugin ‘Web’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194281 using plugin ‘ZabbixAsync’ providing following interfaces: exporter
2020/06/26 11:11:36.194290 using plugin ‘ZabbixStats’ providing following interfaces: exporter, configurator
2020/06/26 11:11:36.194294 using plugin ‘ZabbixSync’ providing following interfaces: exporter

I'm at a loss here and I can't really find a lot of documentation about it.

Thanks in advance!

[Atsushi]

Are the socket permissions for Docker accessible to the zabbix user?
Although the distribution is different, I have provided support at the following URL.

https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/400109-zabbix-5-0-0beta1-ubuntu-18-04-i-add-template-app-docker-get-error-not-supported?p=400163#post400163

[Thijs]

Hi! Everything shows as enabled:

I've added the Zabbix user to the docker group:

$ sudo usermod -aG docker zabbix
$ groups zabbix
zabbix : zabbix docker

but I'm still getting:

[visiandy]

Hey!
Try to raise logging level for zabbix agent and tail log file. Most likely it's a socket access problem. Also it wasn't needed to uncommenting docker endpoint line in your agent config, it is a default setting.

[Thijs]

Yup, it was definetly my own fault, after adding the users to the docker group and restarting the machine, it works like a charm!

[jorioux]

Yup, it was definetly my own fault, after adding the users to the docker group and restarting the machine, it works like a charm!

Didn't had to restart the machine. Just restart the zabbix-agent2 service and it works.