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我正在尝试使用带有持久卷声明的 minikube 运行 Postgresql 数据库。这些是 yaml 规范:

minikube-persistent-volume.yaml:

kind: PersistentVolume
apiVersion: v1
metadata:
  name: pv0001
  labels:
    type: hostpath
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: "/Users/jonathan/data"

postgres-persistent-volume-claim.yaml:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pv-postgres
spec:
  accessModes: [ "ReadWriteMany" ]
  resources:
    requests:
      storage: 2Gi

postgres-deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: postgres
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: postgres
    spec:
      containers:
      - image: postgres:9.5
        name: postgres
        ports:
        - containerPort: 5432
          name: postgres
        volumeMounts:
        - mountPath: /var/lib/postgresql/data
          name: postgres-disk
        env:
        - name: PGDATA
          value: /var/lib/postgresql/data/pgdata
        - name: POSTGRES_USER
          value: keycloak
        - name: POSTGRES_DATABASE
          value: keycloak
        - name: POSTGRES_PASSWORD
          value: key
        - name: POSTGRES_ROOT_PASSWORD
          value: masterkey
      volumes:
      - name: postgres-disk
        persistentVolumeClaim:
          claimName: pv-postgres

当我开始这个时,我在部署的日志中得到以下内容:

[...]
fixing permissions on existing directory 
/var/lib/postgresql/data/pgdata ... ok
initdb: could not create directory "/var/lib/postgresql/data/pgdata/pg_xlog": Permission denied
initdb: removing contents of data directory "/var/lib/postgresql/data/pgdata"

为什么我会收到此 Permission denied 错误,我该怎么办?

4

1 回答 1

6

也许您在安装这些主机文件夹时遇到了 Virtualbox 的写入权限问题。相反,使用/data/postgres作为路径,一切都会奏效。

Minikube 会自动保留以下目录,因此即使您的 VM 重新启动/重新创建,它们也会被保留:

  • /data
  • /var/lib/localkube
  • /var/lib/docker

阅读这些部分了解更多详情:

  1. https://github.com/kubernetes/minikube#persistent-volumes
  2. https://github.com/kubernetes/minikube#mounted-host-folders
于 2017-01-25T17:01:13.457 回答