嵌套模板盔

Question

我正在研究一个问题，以实现一个自定义configMap的舵机图表，并试图根据环境模式填充configMap。

Values.yaml

externalIPService:
ip: 1.1.1.1
port:  80 
emsConfig: "receivers:
otlp:
protocols:
http:
processors:
batch:
exporters:
otlp/ems:
endpoint: {{ .Values.externalIPService.ip }}:{{ .Values.externalIPService.port }}
service:
pipelines:
traces:
receivers: [otlp]
processors: [batch]
exporters: [otlp/ems]
metrics:
receivers: [otlp]
processors: [batch]
exporters: [otlp/ems]
logs:
receivers: [otlp]
processors: [batch]
exporters: [otlp/ems]
"

configMap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
name: simple-demo
data:
message: "{{ tpl .Values.emsConfig .}}"

helm模板输出是一个普通字符串，而不是一个yaml内容。我也试过toYaml，但也没有帮助。有人可以帮助找到一种方法来做嵌套渲染，并能够在confiMap

中使用最终输出

apiVersion: v1
kind: ConfigMap
metadata:
name: simple-demo
data:
message: "receivers: otlp: protocols: http: processors: batch: exporters: otlp/ems: endpoint: {{ .Values.externalIPService.ip }}:{{ .Values.externalIPService.port }} service: pipelines: traces: receivers: [otlp] processors: [batch] exporters: [otlp/ems] metrics: receivers: [otlp] processors: [batch] exporters: [otlp/ems] logs: receivers: [otlp] processors: [batch] exporters: [otlp/ems] "

Answer 1

在这种情况下，需要使用_halpers.tpl文件。

首先，将其添加到_halpers.tpl文件中:

{{- define "appname.emsConfig" -}}
receivers:
otlp:
protocols:
http:
processors:
batch:
exporters:
otlp/ems:
endpoint: {{ .Values.externalIPService.ip }}:{{ .Values.externalIPService.port }}
service:
pipelines:
traces:
receivers: [otlp]
processors: [batch]
exporters: [otlp/ems]
metrics:
receivers: [otlp]
processors: [batch]
exporters: [otlp/ems]
logs:
receivers: [otlp]
processors: [batch]
exporters: [otlp/ems]
{{- end }}

values.yaml文件看起来像这样:

externalIPService:
ip: 1.1.1.1
port:  80 

和configMap.yaml文件，将需要看起来像这样:

apiVersion: v1
kind: ConfigMap
metadata:
name: simple-demo
data:
message: |-
{{ include "appname.emsConfig" . | nindent 4}}