webhook controller has a lot of messages error messages about missing cacert

[chmouel]

a lot of error messages due of missing cacert have started to appears in the tektoncd-webhook pod logs, this has been happenning since we did a bump to use knative.pkg-0.12 in here tektoncd/pipeline#1894 :

{"level":"info","logger":"webhook","caller":"controller/controller.go:363","msg":"Reconcile failed. Time taken: 115.268µs.","knative.dev/traceid":"5c365bc2-40a6-4e9c-9af6-d6c96d690317","knative.dev/key":"webhook.pipeline.tekton.dev"}
{"level":"error","logger":"webhook","caller":"controller/controller.go:376","msg":"Reconcile error","error":"secret \"webhook-certs\" is missing \"ca-cert.pem\" key","stacktrace":"knative.dev/pkg/controller.(*Impl).handleErr\n\t/workspace/tektoncd-pipeline-git/vendor/knative.dev/pkg/controller/controller.go:376\nknative.dev/pkg/controller.(*Impl).processNextWorkItem\n\t/workspace/tektoncd-pipeline-git/vendor/knative.dev/pkg/controller/controller.go:362\nknative.dev/pkg/controller.(*Impl).Run.func2\n\t/workspace/tektoncd-pipeline-git/vendor/knative.dev/pkg/controller/controller.go:310"

They seem harmless and only shows up at boot time and for the webhook controller but there is quite a few of them (55) and they may look quite worrisome for the uneducated user.

/kind bug

[chmouel]

oh prow parses the comments 🤦‍♂

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