No logs in Pod - [controller-runtime] log.SetLogger(...) was never called; logs will not be displayed.

[bakito]

What happened?

The Pod started for the gitlab provider v0.8.0 des not show anly log besides the following:

[controller-runtime] log.SetLogger(...) was never called; logs will not be displayed.
Detected at:
	>  goroutine 382 [running]:
	>  runtime/debug.Stack()
	>  	runtime/debug/stack.go:24 +0x5e
	>  sigs.k8s.io/controller-runtime/pkg/log.eventuallyFulfillRoot()
	>  	sigs.k8s.io/[email protected]/pkg/log/log.go:60 +0xcd
	>  sigs.k8s.io/controller-runtime/pkg/log.(*delegatingLogSink).WithValues(0xc000132bc0, {0xc000098400, 0x2, 0x2})
	>  	sigs.k8s.io/[email protected]/pkg/log/deleg.go:168 +0x49
	>  github.com/go-logr/logr.Logger.WithValues(...)
	>  	github.com/go-logr/[email protected]/logr.go:332
	>  sigs.k8s.io/controller-runtime/pkg/builder.(*Builder).doController.func1(0xc0000983e0)
	>  	sigs.k8s.io/[email protected]/pkg/builder/controller.go:400 +0x193
	>  sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc0000bc820, {0x1ebf350, 0xc0004aa6e0}, {0x1a13820, 0xc0000983c0})
	>  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:306 +0x162
	>  sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc0000bc820, {0x1ebf350, 0xc0004aa6e0})
	>  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:266 +0x1be
	>  sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2()
	>  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:227 +0x79
	>  created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2 in goroutine 48
	>  	sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:223 +0x50c

How can we reproduce it?

Install the gitlab provider and check the log of the started pod.

apiVersion: pkg.crossplane.io/v1
kind: Provider
metadata:
  name: provider-gitlab
spec:
  package: xpkg.upbound.io/crossplane-contrib/provider-gitlab:v0.8.0

What environment did it happen in?

Crossplane version: v1.16.0
Crossplane Provider GitLab version: v0.8.0
Kubernetes version: v1.29.5

[lacroi-m-insta]

It seams to go away when setting the debug flag (it can be set in the DeploymentRuntimeConfig spec.containers.args: [-d])

[bakito]

true, the error disappears as in debug mode, a logger is set.
https://github.com/crossplane-contrib/provider-gitlab/blob/master/cmd/provider/main.go#L67

To truly fix it, a logger needs to be set always.

[ma-ble]

In Crossplane and its providers everything works with events instead of logs because most users will not have access to the pod logs.

https://github.com/crossplane/crossplane/blob/fc418390/docs/contributing/observability_developer_guide.md

[bakito]

Still there should not be an error stack trace in the pod log for those users with access to the logs if the provider works as expected.