已安装的ConfigMap卷无法完全使用

时间:2018-11-21 08:34:27

标签: kubernetes google-kubernetes-engine configmap

在wwwroot / config / config.json中具有外部配置的ASP.NET Core SPA

config.json的内容

{
  "termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}

当文件未被ConfigMap覆盖时,它可以正常工作,并且我可以获取文件的全部内容。

curl https://dev-app.com/config/config.json
{
  "termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}

使用Volume将ConfigMap数据安装到此路径时,不会完全返回。

curl https://dev-app.com/config/config.json
{
  "termsAndCon

该文件位于pod中:

pwd
/app/wwwroot/config

ls -la
total 12
drwxrwxrwx 3 root root 4096 Nov 20 08:48 .
drwxr-xr-x 6 root root 4096 Nov 20 08:46 ..
drwxr-xr-x 2 root root 4096 Nov 20 08:48 ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root   31 Nov 20 08:48 ..data ->         ..2018_11_20_08_48_02.390652870
lrwxrwxrwx 1 root root   18 Nov 20 08:48 config.json -> ..data/config.json

cat config.json
{
  "termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
}

ConfigMap.yaml

kind: ConfigMap
apiVersion: v1
metadata:
  name: my-config
data:
  config.json: |-
    {
      "termsAndConditionsLink": "https://some-dev-url.with/legal/terms/"
    }

Deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: my-app
  labels:
    ...
spec:
  template:
    metadata:
      labels:
        ...
    spec:
      containers:
        ...
          volumeMounts:
            - name: my-volume
              mountPath: /app/wwwroot/config
      volumes:
        - name: my-volume
          configMap:
            name: my-config

1 个答案:

答案 0 :(得分:-1)

从ConfigMap在该位置装载卷时,您是否表示/app/wwwroot/config目录中的所有其他文件都消失了?

您是否尝试过projected卷:

volumes:
  - name: my-volume
    projected:
      sources:
      - configMap:
          name: my-config

编辑:对于那些可能遇到此类问题并且不阅读帖子下方消息的人-与@edbighead交换消息后,另一个建议是在其中使用subPath部署以使config目录可写,因为ConfigMap卷挂载是只读的:

mountPath: /app/wwwroot/config/config.json 
subPath: config.json

这显然解决了问题。