Question

安装配置文件时出现错误，任何人都可以提供帮助吗？

在volumeMounts上使用subPath时出现错误：

Error: stat /var/config/openhim-console.json: no such file or directory.

我可以读取此文件。

在volumeMounts上没有子路径，我得到此错误：

Warning  Failed   13s                kubelet, ip-10-0-65-230.eu-central-1.compute.internal  Error: failed to start container "openhim-console": Error response from daemon: oci runtime error: container_linux.go:262: starting container process caused "process_linux.go:339: container init caused \"rootfs_linux.go:57: mounting \\\"/var/config/openhim-console.json\\\" to rootfs \\\"/var/lib/docker/overlay2/7408e2aa7e93b3c42ca4c2320681f61ae4bd4b02208364eee8da5f51d587ed21/merged\\\" at \\\"/var/lib/docker/overlay2/7408e2aa7e93b3c42ca4c2320681f61ae4bd4b02208364eee8da5f51d587ed21/merged/usr/share/nginx/html/config/default.json\\\" caused \\\"not a directory\\\"\""
: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type
  Warning  BackOff  2s  kubelet, ip-10-0-65-230.eu-central-1.compute.internal  Back-off restarting failed container

这是deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: openhim-console-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      component: openhim-console
  template:
    metadata:
      labels:
        component: openhim-console
    spec:
      volumes:
        - name: console-config
          hostPath:
            path: /var/config/openhim-console.json
      containers:
        - name: openhim-console
          image: jembi/openhim-console:1.13.rc
          ports:
            - containerPort: 80
          volumeMounts:
            - name: console-config
              mountPath: /usr/share/nginx/html/config/default.json
              subPath: default.json
          env:
            - name: NODE_ENV
              value: development

Answer 1

在装入卷而不是文件时，hostPath应该保留path而不是文件路径：/var/config/openhim-console.json。

如果是，则type应指定为File。

另请参阅docs#hostpath

Answer 2

您应该使用：

  volumes:
  - name: host-file
    hostPath:
      path: /var/log/waagent.log
      type: File

或

  volumes:
  - name: test-volume
    hostPath:
      path: /data
      # Directory is the default, so this field is optional. 
      type: Directory

示例：

apiVersion: v1
kind: Pod
metadata:
  name: test-pd
spec:
  containers:
  - image: k8s.gcr.io/test-webserver
    name: test-container
    volumeMounts:
    - mountPath: /test-pd
      name: test-volume
    - mountPath: /var/log/lala/aaa.log
      name: host-file
  volumes:
  - name: test-volume
    hostPath:
      path: /data
      # this field is optional
      type: Directory
  - name: host-file
    hostPath:
      path: /var/log/waagent.log
      type: File

subpath通常在您只需要在容器内安装一个路径而不是根目录时使用。

您可以在docs中找到更多详细信息。

Kubernetes配置文件从主机到容器？

2 个答案: