Helm template - integer value is always rendered as 0-CodePudding

I see somewhat strange behaviour of helm template:

My tpl function does this:

{{- define "spark-k8s-application.maxExecutors" -}}
...
  {{- printf "%d" .Values.application.dynamicAllocation.maxExecutors | int }}

Later I use it for a label:

labels:
    spark-executors-max: {{ include "spark-k8s-application.maxExecutors" . | quote }}

But whatever number I put in my input parameters, it is always rendered as "0" How could I render the correct integer value?

CodePudding user response：

The problem was in parenthesis and operation order.

This expression works as expected:

{{- printf "%d" (.Values.application.dynamicAllocation.maxExecutors | int) }}

Looks like you have to be very explicit about order of operations in go templates.