可以在带有go模板的模板中使用模板吗

你可以使用 _helpers.tpl 用于定义逻辑和使用值进行操作的文件。

_助手.tpl

{{/*
Get redis host based on cluster.
*/}}
{{- define "chart.getRedis" -}}
{{- if eq .Values.cluster "aws" -}}
{{- .Values.redis.aws.masterHost | quote -}}
{{- else -}}
{{- .Values.redis.gcp.masterHost | quote -}}
{{- end -}}
{{- end -}}

价值观

cluster: local
redis:
  aws:
    masterHost: "my-aws-host"
  gcp:
    masterHost: "my-gcp-host"

在您的部署中使用它(下面是一个configmap示例以缩短它的长度)

配置文件yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: Configmap
data:
  redis: {{ template "chart.getRedis" . }}

输出:

helm install --dry-run --debug mychart

[debug] Created tunnel using local port: '64712'

...

COMPUTED VALUES:
cluster: local
redis:
  aws:
    masterHost: my-aws-host
  gcp:
    masterHost: my-gcp-host

HOOKS:
MANIFEST:

---
# Source: mychart/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: Configmap
data:
  redis: "my-gcp-host"

将群集值设置为AWS:

helm install --dry-run --debug mychart --set-string=cluster=aws

[debug] Created tunnel using local port: '64712'

...

COMPUTED VALUES:
cluster: local
redis:
  aws:
    masterHost: my-aws-host
  gcp:
    masterHost: my-gcp-host

HOOKS:
MANIFEST:

---
# Source: mychart/templates/configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: Configmap
data:
  redis: "my-aws-host"