prometheus without k8s about docker-postfix HOT 1 CLOSED

Hi.

Prometheus is implemented as a sidecar container. In other words: it runs a separate docker image which consumes the logs from Postfix itself.

This is technically not feasible to do inside a single image, without building and pulling in the whole kumina/postfix_exporter image.

You can, however, implement it yourself by running a second container inside docker-compose.yaml, based on the example in the chart. There are some tweaks as you need to:

• redirect Postfix output to a file
• ensure that that file is still reported to standard out of the Postfix image (for debugging / control)
• ensure that your postfix_exporter consumes the proper output file

With all of that, there's no simple and elegant solution to do this completely copy-paste generic.

I am willing, however, to pull your docker-compose.yaml in into examples should you find a configuration that works.

from docker-postfix.