From Slack
Hi guys, seems like putting net-kourier-controller in knative-serving-ingress leads to, reading the config-*  (including config-logging) from SYSTEM_NAMESPACE (which is knative-serving-ingress instead of knative-serving). The only way to enable the debug log seems to be:

cat <<-EOF | oc apply -f -
apiVersion: v1
data:
  loglevel.net-kourier-controller: debug
kind: ConfigMap
metadata:
  labels:
    app.kubernetes.io/component: logging
    app.kubernetes.io/name: knative-serving
    app.kubernetes.io/version: 1.7.0
  name: config-logging
  namespace: knative-serving-ingress
EOF 

We cannot configure that from the operator using https://issues.redhat.com/browse/SRVCOM-2451.

I think we should fix it for config-logging and config-observability ...
(Ideally we should move net-kourier-controller  into knative-serving  namespace but it is more difficult, I think.)