Error installing/linting local Hono chart with latest dependency versions

[calohmn]

From #469 (comment):
There is currently an error when trying to install the Hono chart from local sources using the latest dependencies.

The error can already be seen when running helm lint:

cd charts/hono
helm dependency update
helm lint . --values ci/mongodb-based-device-registry-values.yaml

Output:

Error:  templates/: template: hono/charts/mongodb/templates/standalone/svc.yaml:12:14: 
 executing "hono/charts/mongodb/templates/standalone/svc.yaml" 
at <include "common.labels.standard" (dict "customLabels" .Values.commonLabels "context" $)>: 
error calling include: template: hono/charts/kafka/charts/common/templates/_labels.tpl:6:27: 
 executing "common.labels.standard" at <include "common.names.name" .>: 
error calling include: template: hono/charts/kafka/charts/common/templates/_names.tpl:6:18: 
 executing "common.names.name" at <.Chart.Name>: nil pointer evaluating interface {}.Name

Analysis:
The dependency update will update the used MongoDB chart from 13.16.4 to 13.17.2. The new MongoDB chart version makes use of an updated template function in the bitnami common dependency version 2.9.0.
But the referenced Kafka chart is still using an older common version which isn't compatible here, and that older common chart version seems indeed to be loaded. Hence the error above.

See bitnami/charts#18890 (comment).

The straightforward solution seems to be to prevent the usage of the MongoDB 13.17.x chart version by using

- name: "mongodb"
  repository: "https://charts.bitnami.com/bitnami"
  version: "~13.16.x"

in the Hono Chart.yaml.

The alternative would be to update the Kafka chart to 25.0.0 (released last week). This version is also using common 2.9.0.

[sophokles73]

I am currently working on migrating to Kafka in Raft mode (using chart version 25.x) so that we do not need Zookeeper anymore :-)

FMPOV we can prevent the update of the Mongo DB chart for the moment and when I create the PR for the update to Kafka chart 25.x, I will also allow the Mongo DB chart to be updated again ...