feature request: more advanced promtail configurations

[gclawes]

Details

Helm chart name: common

Describe the solution you'd like:

The current promtail addon scrape configs are limited to static configs with a job and __path__ label. This makes it difficult to identify what pod a scrape job comes from, or distinguish multiple instances of a job.

Anything else you would like to add:

• enable -config.expand-env=true to allow pod environment variables to be used in labels
• Allow relabeling configs

Additional Information:

I'm somewhat new to using promtail. If there's a reason this doesn't make sense, or a better way to do it, I'd be glad to hear.

[onedr0p]

@gclawes this would be excellent. if you want to try and get a PR together we will review. Thanks!

[onedr0p]

It might be better to deprecate the promtail addon and use vector instead, but that's because I have become more a fan of that over promtail :D

[gclawes]

Hi! Sorry for the late response. If vector can support pushing to Loki and additional labeling like promtail does.

I'm still interested in contributing to this, but I have to get approval to make open-source contributions from my employer, and that may take some time.

[onedr0p]

No worries, vector can do all that and more. It's very cool, be sure to check it out: https://vector.dev

You can see my in cluster replacement for promtail here:
https://github.com/onedr0p/home-ops/blob/main/cluster/apps/monitoring/vector-agent/helm-release.yaml