[prometheus-blackbox-exporter] Issue with extraInitContainers

[maximebrun]

Describe the bug a clear and concise description of what the bug is.

Error running helm template with extra init container.

What's your helm version?

v3.13.0

What's your kubectl version?

v1.26.7

Which chart?

prometheus-blackbox-exporter

What's the chart version?

8.4.0

What happened?

There is a an error running helm template with additional extraInitContainers :

$ helm template .
Error: YAML parse error on prometheus-blackbox-exporter/templates/deployment.yaml: error converting YAML to JSON: yaml: line 37: block sequence entries are not allowed in this context

With debug flag, we see this result :

...
      initContainers:  - args:
          - echo "Fake..."
...

What you expected to happen?

Template output whithout error.

How to reproduce it?

run helm template .

Enter the changed values of values.yaml?

extraInitContainers:

• name: test
  image: prom/blackbox-exporter:v0.24.0
  command: ["/bin/sh", "-c"]
  args:
  • echo "Fake..."

Enter the command that you execute and failing/misfunctioning.

helm template .

Anything else we need to know?

Problem exist with extraInitContainers and extraContainers.

[zeritti]

#3850