Logging + Graylog

Rancher 2.x
1

Hello everyone,

We use Graylog with logging tool. In my Rancher cluster, I set up for sending all logs for Graylog. I’m using Rsyslog protocol.

But I have some questions about it. When I configure my logging inside Rancher to use Rsyslog the message example doesn’t show “log message” (Error, actually state).

Timestamp = July 3rd 2018, 3:32:54
Host = 192.168.1.2
Program =
Message =
stream:stderr
docker:
{
“container_id”=>“218477a1e…0371”
}
kubernetes:
{
“container_name”=>“kube-flannel”,
“namespace_name”=>“kube-system”,
“pod_name”=>“kube-flannel-8ztd8”
}

That’s ok, It works. I have received messages about namespace, environment, host and other information but not the main information “logs messages”.

Is possible pick up the log message through Rsyslog?

3 Likes
2

I added a feature request to support the GELF Graylog format:

Currently i’m just using the syslog connector (but parsing/field extraction is missing then)

2 Likes
3

Hi @dnauck,

I hope that this feauture to be add soon!! But for the time I have used other way for… I’ve disabled log trought Rancher Admin Interface for all my clusters before I did deployed GELF with a daemonset inside my Kubernetes Cluster. By the way You’ll need deploy this solution for all your clusters. In my environment We have three cluster, so I needed to make three demonset deploy, one for each environment. I configured a port for each one.

Thank you!