MYSQL Helm chart - function "lookup" not defined

[entrymon]

Which chart:
MySQL chart

Describe the bug
Copied latest values.yaml and added password in it from repo - https://github.com/bitnami/charts/blob/master/bitnami/mysql/values.yaml

helm install mysql bitnami/mysql -f mysql-values.yaml --namespace=default

To Reproduce
Copied latest values
try install repo

Expected behavior
helm chart should have got deployed

Version of Helm and Kubernetes:
Using latest microk8s having k8s - Major:"1", Minor:"19+", GitVersion:"v1.19.5-34+8af48932a5ef06"
Using microk8s helm versions - version.BuildInfo{Version:"v3.0.2"

Additional context
Error on console

Error: parse error at (mysql/charts/common/templates/_secrets.tpl:84): function "lookup" not defined
helm.go:76: [debug] parse error at (mysql/charts/common/templates/_secrets.tpl:84): function "lookup" not defined

[vyshkov]

same issue on kafka helm chart

[Pagten]

Also occurring on the wordpress chart.

The culprit seems to be PR #5156, which refers to PR #5091, which updates the minimum supported helm version to v3.1. Hence the behavior is expected and the helm version we're using is simply too old.

The latest wordpress chart version that still works for me is 10.4.1

[andresbono]

Hi all, as @Pagten mentioned, you would need to update your helm version to 3.1 to install the chart as notified in #5091.

This is a reported issue that has been discussed in #5032. I'll be closing this issue given that there is already an open one. Please refer to it if you need further help.