Cannot upgrade kong ingress

Kubernetes
1

Hi,

I’am trying to upgrade my kong ingress from version 0.8.0 to the latest version but I get the following error:

Error: UPGRADE FAILED: parse error at (kong/templates/ingress-class.yaml:2): function "lookup" not defined

I executed the helm repo upgrade command:

helm repo update

And after that I used the following upgrade command from the docs (Upgrading from 1.3.x to 2.0.x - v2.0.x | Kong Docs):

helm upgrade ${YOUR_RELEASE_NAME} kong/kong \
  --namespace ${YOUR_NAMESPACE} \
  -f ${PATH_TO_YOUR_VALUES_FILE}

Any suggestions how fix this?

Best Tom

2

That indicates an older version of Helm prior to when they added the lookup template function.

That actually requires Helm 3.1, though we generally just mention the Helm 2/Helm 3 distinction since we don’t often see older versions of Helm 3 in the wild.

3

Hi,

Thanks for your reply, I will upgrade my helm version and try it again.

4

This was the probleem indeed. Thanks it works now.