Report this

What is the reason for this report?

Ingress Tutorial Cert Issuer Error

Posted on November 6, 2022

Following this tutorial for ingress and ssl setup. https://www.digitalocean.com/community/tutorials/how-to-set-up-an-nginx-ingress-on-digitalocean-kubernetes-using-helm

Everything going good, installed the cert manager but getting an error applying the cert issuer

kubectl apply -f production_issuer.yaml

Error from server (InternalError): error when creating “kube/issuer.yaml”: Internal error occurred: failed calling webhook “webhook.cert-manager.io”: failed to call webhook: Post “https://cert-manager-webhook.cert-manager.svc:443/mutate?timeout=10s”: x509: certificate signed by unknown authority



This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Looks like the ca-injector failed to start.

E1106 23:15:28.823721 1 start.go:170] cert-manager/ca-injector “msg”=“Error registering certificate based controllers. Retrying after 5 seconds.” “error”=“no matches for kind "MutatingWebhookConfiguration" in version "admissionregistration.k8s.io/v1beta1"”
Error: error registering secret controller: no matches for kind “MutatingWebhookConfiguration” in version “admissionregistration.k8s.io/v1beta1

That api does not exist

kc api-versions | grep admission
admissionregistration.k8s.io/v1

I took the --version off the cert-manager options. Assuming this installs the latest version of the chart. After that the issuer was able to be applied. Think that step in the tutorial needs to be updated.

helm install cert-manager jetstack/cert-manager --namespace cert-manager --set installCRDs=true

The developer cloud

Scale up as you grow — whether you're running one virtual machine or ten thousand.

Get started for free

Sign up and get $200 in credit for your first 60 days with DigitalOcean.*

*This promotional offer applies to new accounts only.