toYaml function loses indentation in lists

[pkesso]

toYaml function loses indentation in lists.

in values.yaml I have:

  affinity:
    nodeAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
        nodeSelectorTerms:
          - matchExpressions:
              - key: loadtest
                operator: In
                values:
                  - "true"

in template:

      affinity:
        {{- toYaml .Values.config.affinity | nindent 8 }}

result would not pass yamllint due to bad indents:

      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: loadtest
                operator: In
                values:
                - "true"

$ helm version
version.BuildInfo{Version:"3.17.0", GitCommit:"301108edc7ac2a8ba79e4ebf5701b0b6ce6a31e4", GitTreeState:"clean", GoVersion:"go1.24rc2"}

[jamoflaw]

Can you try the toYamlPretty template function? It should have the 2 space indent you want

[pkesso]

Can you try the toYamlPretty template function? It should have the 2 space indent you want

Yes, it works, thank you! However, toYamlPretty is not mentioned in the docs:
https://helm.sh/docs/chart_template_guide/function_list/

[jamoflaw]

Yeah there seems to be a few missing yaml functions from either the list or the docs - I'll try to write a quick PR for it and see if its accepted

[jamoflaw]

Hopefully this will do the trick https://github.com/helm/helm-www/pull/1720/files

[gjenkins8]

thanks @jamoflaw -- closing this as the only follow up is adding to the docs I think (which you PR does!)

(someone please comment if something else is considered needed)