Promtail drop certain logs

Grafana Loki
1

Hello, team!
I would like to find way to drop certain logs. Is there any example how to do that?

Thank you so much in an advance!

2

Hi,

You can use pipeline stages to filter, refer to this documentation:

match

The match stage conditionally executes a set of stages when a log entry matches a configurable LogQL stream selector.

Hope it helps.

Good Luck

3

Thank you! I will take a look at it!

4

I have the same question as well.
here is what I am trying to do.

  snippets:
    pipelineStages:
      - cri: {}
      - match:
          selector: '{app_kubernetes_io_name="ingress-nginx"}'
          action: drop
      - labels:
          cluster: rancher

However, this doesn’t really work because the selector doesn’t catch anything

The label is like app.kubernetes.io/name: ingress-nginx

What is the correct syntax to do this?

I have tried __meta_kubernetes_pod_label_app_kubernetes_io_name and it doesn’t work either.

Thx

5

Hi,

If you are setting up for the first time, i suggest you follow the setup on this article (configuration side)

Hope it helps.

Good Luck

6

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