Simple question is it possible to get size list with helm and sprig function ?
My list :
list:
- a
- b
- c
I tried like this :
{{ .Values.list | len }}
{{ .Values.list | size }}
{{ .Values.list | length }}
See this How to compare the length of a list in html/template in golang?.
While we talk about the “Helm template language” as if it is Helm-specific, it is actually a combination of the Go template language, some extra functions, and a variety of wrappers to expose certain objects to the templates. Many resources on Go templates may be helpful as you learn about templating.
ref: https://helm.sh/docs/chart_template_guide/#template-functions-and-pipelines
So you can use len
function from go-template
(text/template
package).
Example:
values.yaml
contents:
list:
- a
- b
- c
template/list.yaml
contents:
kind: List
spec:
len: {{ len .Values.list }}
items:
{{- range $item := .Values.list }}
- {{ $item }}
{{- end }}