Find the way to add ingress annotations to nginx logs

General Discussions
1

Good day!

We have a large multi-tenant cluster with more than 200 namespaces in it.
We collect logs using a filebeat, which has recently supported receiving annotations from a namespace. This allows us to split the logs by teams.
However, this mechanism does not work for logs from the ingress controller.

The idea is to use a “simple” trick with mutating webhook to transfer annotations from ns to ingress and then from ingress to controller logs.

Tell me, is there a way to have these annotations from ingress in the logs of the ingress controller without rewriting the controller?

2

Ok, I’ll answer it myself.

  1. Edit the nginx template so that the annotation from ingress gets to the log.
  2. Write a mutation webhook that copies the annotation from the namespace to ingress.