如何在 yaml 文件中使用 json 变量(Helm) [英] How do I use json variables in a yaml file (Helm)
问题描述
我有一个如下所示的 HELM 值文件:
I have a HELM values file which looks like so:
service:
environment: dev
spring_application_json: >-
{
"spring" : {
"boot" : {
"admin" : {
"client" : {
"enabled" : "false",
"url" : "http://website1",
"instance" : {
"service-base-url" : "http://website2",
"management-base-url" : "http://website3"
}
}
}
}
}
}
以及一个相应的模板文件,该文件获取该值并将其作为环境变量插入到容器中.
And a corresponding template file which grabs this value and inserts it as an environment variable to a container.
spec:
replicas: {{ .Values.replicaCount }}
template:
spec:
imagePullSecrets:
- name: {{ .Values.image.pullSecret }}
containers:
- name: {{ .Chart.Name }}
image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
imagePullPolicy: {{ .Values.image.pullPolicy }}
env:
- name: ENVIRONMENT
value: "{{ .Values.service.environment }}"
- name: SPRING_APPLICATION_JSON
value: "{{ .Values.service.spring_application_json }}"
但是,当我运行 helm install 时,出现以下错误:
However when I run the helm install I get the following error:
Error: YAML parse error on deployment.yaml: error converting YAML to JSON: yaml: line 40: did not find expected key
哪个指向线:
value: "{{ .Values.service.spring_application_json }}"
我认为我尝试将 json 字符串解析为多行环境变量的方式存在问题?ENVIRONMENT 'dev' 变量完美运行,同样的 YAML 也与 docker-compose 完美运行.
I believe its a problem with the way I'm trying to parse in a json string as a multiline environment variable? The ENVIRONMENT 'dev' variable works perfectly and this same YAML also works perfectly with docker-compose.
推荐答案
spring cloud dataflow 但其文档中的格式已转义引号.
There's an example a bit like this in the docs for spring cloud dataflow but the format in their documentation has the quotes escaped.
我能够重新创建错误并通过将值文件条目更改为:
I was able to recreate the error and get past it by changing the values file entry to:
service:
spring_application_json:
{
"spring" : {
"boot" : {
"admin" : {
"client" : {
"enabled" : "false",
"url" : "http://website1",
"instance" : {
"service-base-url" : "http://website2",
"management-base-url" : "http://website3"
}
}
}
}
}
}
以及部署入口:
- name: SPRING_APPLICATION_JSON
value: {{ .Values.service.spring_application_json | toJson | quote }}
注意这部分没有引号,因为无论如何都会处理.
Notice no quotes around this part as that is handled anyway.
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