Configuring log settings for Serving and Eventing | Observability

Supported log levels
Configuring log settings

You can configure logging for OpenShift Serverless Serving and OpenShift Serverless Eventing using the KnativeServing and KnativeEventing custom resource (CR). The level of logging is determined by the specified loglevel value.

Supported log levels

The following loglevel values are supported:

Table 1. Supported log levels
Log level	Description
`debug`	Fine-grained debugging
`info`	Normal logging
`warn`	Unexpected but non-critical errors
`error`	Critical errors; unexpected during normal operation
`dpanic`	In debug mode, trigger a panic (crash)

Using the debug level for production might negatively affect performance.

Configuring log settings

You can configure logging for Serving and Eventing in the KnativeServing custom resource (CR) and KnativeEventing CR.

Procedure

Configure the log settings for Serving and Eventing by setting or modifying the loglevel value in the KnativeServing and KnativeEventing CR respectively. Here are two example configurations with all possible logging options set to level info:

KnativeServing CR

apiVersion: operator.knative.dev/v1beta1
kind: KnativeServing
metadata:
  name: knative-serving
  namespace: knative-serving
spec:
  config:
    logging:
      loglevel.controller: "info"
      loglevel.autoscaler: "info"
      loglevel.queueproxy: "info"
      loglevel.webhook: "info"
      loglevel.activator: "info"
      loglevel.hpaautoscaler: "info"
      loglevel.net-certmanager-controller: "info"
      loglevel.net-istio-controller: "info"
      loglevel.net-kourier-controller: "info"

KnativeEventing CR

apiVersion: operator.knative.dev/v1beta1
kind: KnativeEventing
metadata:
  name: knative-eventing
  namespace: knative-eventing
spec:
  config:
    logging:
      loglevel.controller: "info"
      loglevel.eventing-webhook: "info"
      loglevel.inmemorychannel-dispatcher: "info"
      loglevel.inmemorychannel-webhook: "info"
      loglevel.mt-broker-controller: "info"
      loglevel.mt_broker_filter: "info"
      loglevel.mt_broker_ingress: "info"
      loglevel.pingsource-mt-adapter: "info"