MongooseServerSelectionError：使用Minikube时无法连接到MongoDB Atlas集群中的任何服务器

Question

我使用node创建了一个RESTAPI，并使用Kubernetes和Docker对其进行了容器化。出于开发目的，kubernetes吊舱在minikube环境中运行。

该应用程序运行良好，现在给出了以下错误。

[distribution] Initial Distribution API Database connection error occured - MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster. One common reason is that you're trying to access the database from an IP that isn't whitelisted. Make sure your current IP address is on your Atlas cluster's IP whitelist: https://docs.atlas.mongodb.com/security-whitelist/
[distribution]     at NativeConnection.Connection.openUri (/app/node_modules/mongoose/lib/connection.js:830:32)
[distribution]     at Mongoose.connect (/app/node_modules/mongoose/lib/index.js:335:15)
[distribution]     at /app/src/index.ts:60:8
[distribution]     at step (/app/src/index.ts:34:23)
[distribution]     at Object.next (/app/src/index.ts:15:53)
[distribution]     at fulfilled (/app/src/index.ts:6:58)
[distribution]     at processTicksAndRejections (node:internal/process/task_queues:93:5) {
[distribution]   reason: TopologyDescription {
[distribution]     type: 'ReplicaSetNoPrimary',
[distribution]     setName: null,
[distribution]     maxSetVersion: null,
[distribution]     maxElectionId: null,
[distribution]     servers: Map(3) {
[distribution]       'cluster0-shard-00-00.psdty.mongodb.net:27017' => [ServerDescription],
[distribution]       'cluster0-shard-00-01.psdty.mongodb.net:27017' => [ServerDescription],
[distribution]       'cluster0-shard-00-02.psdty.mongodb.net:27017' => [ServerDescription]
[distribution]     },
[distribution]     stale: false,
[distribution]     compatible: true,
[distribution]     compatibilityError: null,
[distribution]     logicalSessionTimeoutMinutes: null,
[distribution]     heartbeatFrequencyMS: 10000,
[distribution]     localThresholdMS: 15,
[distribution]     commonWireVersion: null
[distribution]   }
[distribution] }

该问题似乎是MongoDB连接URL/Access问题，但连接字符串是正确的。（使用MongoDB Cloud支持仔细检查）。每个人都有相关的网络访问权限

我还可以确认可以使用相同的连接URL通过MongoDB Compass访问MongoCloudDB

我的猜测是无法从mini kube中的pod与MongoDB数据库建立连接。

你们有谁知道如何克服这个问题吗？？

pod和外部服务的kubernetes配置

apiVersion: apps/v1
kind: Deployment
metadata:
  name: distribution-depl
spec:
  replicas: 1
  selector:
    matchLabels:
      app: distribution
  template:
    metadata:
      labels:
        app: distribution
    spec:
      containers:
        - name: distribution
          image: ssomlk/distribution
          env:
            - name: MONGO_URI
              value: 'mongodb://ssomlk:<password>@cluster0-shard-00-00.yeu7t.mongodb.net:27017,cluster0-shard-00-01.yeu7t.mongodb.net:27017,cluster0-shard-00-02.yeu7t.mongodb.net:27017/<db_name>?ssl=true&replicaSet=atlas-fznj9q-shard-0&authSource=admin&retryWrites=true&w=majority'
            - name: JWT_ACCESS_TOKEN_KEY
              valueFrom:
                secretKeyRef:
                  name: jwt-secret
                  key: JWT_ACCESS_TOKEN_KEY
            - name: JWT_REFRESH_TOKEN_KEY
              valueFrom:
                secretKeyRef:
                  name: jwt-secret
                  key: JWT_REFRESH_TOKEN_KEY
            - name: JWT_ACCESS_TOKEN_EXPIRES_IN
              value: '15m'
            - name: JWT_REFRESH_TOKEN_EXPIRES_IN
              value: '60m'
            - name: NATS_CLIENT_ID
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: NATS_URL
              value: 'http://nats-srv:4222'
            - name: NATS_CLUSTER_ID
              value: nats-distribution-mailing
            - name: MAIL_USER
              valueFrom:
                secretKeyRef:
                  name: mail-secret
                  key: MAIL_USER
            - name: MAIL_PWD
              valueFrom:
                secretKeyRef:
                  name: mail-secret
                  key: MAIL_PWD
            - name: POOL_SIZE
              value: '8'
---
apiVersion: v1
kind: Service
metadata:
  name: distribution-srv
spec:
  type: ClusterIP
  selector:
    app: distribution
  ports:
    - name: distribution
      protocol: TCP
      port: 3000
      targetPort: 3000

使用尝试实现外部服务时收到的错误进行编辑

• 服务“分发数据库-srv”无效：

• spec.externalName：无效值：“mongodb://ssomlk:@cluster0-shard-00-00。y8kuj。mongodb。网络：27017，cluster0-shard-00-01。y8kuj。mongodb。网络：27017，cluster0-shard-00-02。y8kuj。mongodb。净额：27017/

有什么想法吗？？

Answer 1

以下步骤对我有用。来自另一个Github用户的帮助。

I have stopped and deleted the existing minikube

Downloaded "https://github.com/kubernetes/minikube/releases/download/v1.8.2/minikube-windows-amd64.exe" and renamed it to minikube.exe

Placed the above exe in the same folder in which my kubectl.exe is existing. (C:\kube). This path is added to the environment variable "Path" of my user.

Created a hyperv switch, Open Hyper-V Manager, Click on Virtual Switch Manager, Create New Virtual Network Switch, Select external type, and OK.

Ran this command `minikube start driver="hyperv" --hyperv-virtual-switch="MY-SWITCH"`

minikube successfully started

然后，我创建了一个部署，成功地拉取了映像并运行了容器，没有任何问题。

Answer 2

在您的配置中，mongdb uri不能从集群内部解析，您必须创建一个外部服务来使uri可解析。请参阅下面的配置作为示例。

kind: Deployment
metadata:
  name: distribution-depl
spec:
  replicas: 1
  selector:
    matchLabels:
      app: distribution
  template:
    metadata:
      labels:
        app: distribution
    spec:
      containers:
        - name: distribution
          image: ssomlk/distribution
          env:
            - name: MONGO_URI
              value: my-service
            - name: JWT_ACCESS_TOKEN_KEY
              valueFrom:
                secretKeyRef:
                  name: jwt-secret
                  key: JWT_ACCESS_TOKEN_KEY
            - name: JWT_REFRESH_TOKEN_KEY
              valueFrom:
                secretKeyRef:
                  name: jwt-secret
                  key: JWT_REFRESH_TOKEN_KEY
            - name: JWT_ACCESS_TOKEN_EXPIRES_IN
              value: '15m'
            - name: JWT_REFRESH_TOKEN_EXPIRES_IN
              value: '60m'
            - name: NATS_CLIENT_ID
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: NATS_URL
              value: 'http://nats-srv:4222'
            - name: NATS_CLUSTER_ID
              value: nats-distribution-mailing
            - name: MAIL_USER
              valueFrom:
                secretKeyRef:
                  name: mail-secret
                  key: MAIL_USER
            - name: MAIL_PWD
              valueFrom:
                secretKeyRef:
                  name: mail-secret
                  key: MAIL_PWD
            - name: POOL_SIZE
              value: '8'
---
apiVersion: v1
kind: Service
metadata:
  name: distribution-srv
spec:
  type: ClusterIP
  selector:
    app: distribution
  ports:
    - name: distribution
      protocol: TCP
      port: 3000
      targetPort: 3000

kind: Service
metadata:
  name: my-service
  namespace: prod
spec:
  type: ExternalName
  externalName: 'mongodb://ssomlk:<password>@cluster0-shard-00-00.yeu7t.mongodb.net:27017,cluster0-shard-00-01.yeu7t.mongodb.net:27017,cluster0-shard-00-02.yeu7t.mongodb.net:27017/<db_name>?ssl=true&replicaSet=atlas-fznj9q-shard-0&authSource=admin&retryWrites=true&w=majority'```