循环进入舵图模板 [英] loop in go helm chart templating

问题描述

我试图像这样在kubernetes舵图中循环计数:

I am trying to loop for a count in a kubernetes helm chart like this:

reaction.mongo_url_big: mongodb://{{ for $mongocount := 0; $mongocount < {{ .Values.mongodbReplicantCount }}; $mongocount++ }}{{ .Values.mongodbReleaseName }}-mongodb-replicaset-{{ $mongocount }}:{{ .Values.mongodbPort }}{{ if $mongocount < {{ .Values.mongodbReplicantCount }} - 1 }},{{ end }}{{ end }}/{{ .Values.mongodbName }}?replicaSet={{ .Values.mongodbReplicaSet }}

但是，go模板中没有可用的内容，因为它们会告诉您

However, there is no for available in go templates as they will tell you themselves

我希望它输出如下内容:

I want it to output something like:

 reaction.mongo_url: mongodb://{{ .Values.mongodbReleaseName }}-mongodb-replicaset-0:{{ .Values.mongodbPort }},{{ .Values.mongodbReleaseName }}-mongodb-replicaset-1:{{ .Values.mongodbPort }},{{ .Values.mongodbReleaseName }}-mongodb-replicaset-2:{{ .Values.mongodbPort }}/{{ .Values.mongodbName }}?replicaSet={{ .Values.mongodbReplicaSet }}

我的掌舵图中的线在这里: https://github.com/joshuacox/reactionetes/blob/gymongonasium/reactioncommerce/templates/configmap.yaml#L11

The line in my helm chart is here: https://github.com/joshuacox/reactionetes/blob/gymongonasium/reactioncommerce/templates/configmap.yaml#L11

推荐答案

sprig 函数已添加，直到现在为止，其中之一可以在操作中看到此处，或者在我的情况下:

Notice on the helm tips and tricks page they mention that sprig functions have been added, one of which is until, which can be seen in action here or in my case:

{{- define "mongodb_replicaset_url" -}}
  {{- printf "mongodb://" -}}
  {{- range $mongocount, $e := until (.Values.mongodbReplicaCount|int) -}}
    {{- printf "%s-mongodb-replicaset-%d." $.Values.mongodbReleaseName $mongocount -}}
    {{- printf "%s-mongodb-replicaset:%d" $.Values.mongodbReleaseName ($.Values.mongodbPort|int) -}}
    {{- if lt $mongocount  ( sub ($.Values.mongodbReplicaCount|int) 1 ) -}}
      {{- printf "," -}}
    {{- end -}}
  {{- end -}}
  {{- printf "/%s?replicaSet=%s" $.Values.mongodbName  $.Values.mongodbReplicaSet -}}
{{- end -}}

这篇关于循环进入舵图模板的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！