mongodb - MongoDB在kubernetes中不持久

Question

我正在尝试在k8s世界中配置mongodb部署。
我的mongo部署文件如下所示:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: panel-admin-mongo-deployment
spec:
  replicas: 1
  selector:
    matchLabels:
      component: panel-admin-mongo
  template:
    metadata:
      labels:
        component: panel-admin-mongo
    spec:
      volumes:
        - name: panel-admin-mongo-storage
          persistentVolumeClaim:
            claimName: database-persistent-volume-claim
      containers:
        - name: panel-admin-mongo
          image: mongo
          ports:
            - containerPort: 27017
          volumeMounts:
            - name: panel-admin-mongo-storage
              mountPath: /data/db

Mongo服务文件:

apiVersion: v1
kind: Service
metadata:
  name: panel-admin-mongo-cluster-ip-service
spec:
  type: ClusterIP
  selector:
    component: panel-admin-mongo
  ports:
    - port: 27017
      targetPort: 27017

我的持续销量声称:

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: database-persistent-volume-claim
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi

当我使用以下命令进入mongodb容器时: kubectl exec -it panel-admin-mongo-deployment-6dcfc5b8c7-mk8d5 sh并且我将一些用户的电子邮件和密码(例如f.ex.用户)保存在集合中，一切正常。但是当我击落 pods 和其中的容器时，再次启动，数据就消失了。不应该独立于Pod的生命周期吗？如果是，我想念什么？

Answer 1

我不是k8s专家，但是您的问题是您没有使用Kubernetes statfulsets，请在此处查看
https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/

AFAIK，对于任何持久部署，您都需要使用statefulsets创建pod。