Question

我创建了一个Web服务并将其嵌入到Azure容器中，并使用Kubernetes对其进行管理。与Microsoft发布的AKS教程相似。当我尝试通过AKS提供的公共IP访问我的服务时，无法访问该服务。 Pod正常运行，服务日志显示没有问题，Web服务器正常运行。可能是什么问题呢？以下是我的yaml文件和CLI输出

kubectl get pods
NAME                           READY     STATUS    RESTARTS   AGE
books-back-85c6fd64fd-wjxff    1/1       Running   0          3d
books-front-68448dbfdb-cbmfs   1/1       Running   0          24m

-----------------------------------------------------------
kubectl get logs books-front-68448dbfdb-cbmf
Book {'Title': 'Atomic Habits', 'Author': 'Mark Johnson'} added
Book {'Title': 'If Tomorrow Comes', 'Author': 'Sidney Sheldon'} added
books: [{"Title": "Atomic Habits", "Author": "Mark Johnson"}]
 * Serving Flask app "server" (lazy loading)
 * Environment: production
   WARNING: This is a development server. Do not use it in a production deployment.
   Use a production WSGI server instead.
 * Debug mode: off
 * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
-----------------------------------------------------------------------

kubectl get service 
books-back    ClusterIP      10.0.235.217   <none>          6379/TCP       3d
books-front   LoadBalancer   10.0.165.13    52.168.10.232   80:31233/TCP   3d
kubernetes    ClusterIP      10.0.0.1       <none>          443/TCP        3d

-----------------------------------------------------------------------------
My Yaml file


    apiVersion: apps/v1beta1
    kind: Deployment
    metadata:
      name: books-back
    spec:
      replicas: 1
      template:
        metadata:
          labels:
            app: books-back
        spec:
          nodeSelector:
            "beta.kubernetes.io/os": linux
          containers:
          - name: books-back
            image: redis
            ports:
            - containerPort: 6379
              name: redis
    ---
    apiVersion: v1
    kind: Service
    metadata:
      name: books-back
    spec:
      ports:
      - port: 6379
      selector:
        app: books-back
    ---
    apiVersion: apps/v1beta1
    kind: Deployment
    metadata:
      name: books-front
    spec:
      replicas: 1
      strategy:
        rollingUpdate:
          maxSurge: 1
          maxUnavailable: 1
      minReadySeconds: 5 
      template:
        metadata:
          labels:
            app: books-front
        spec:
          nodeSelector:
            "beta.kubernetes.io/os": linux
          containers:
          - name: books-front
            image: bookservice.azurecr.io/books-front:v1
            ports:
            - containerPort: 80
            resources:
              requests:
                cpu: 250m
              limits:
                cpu: 500m
            env:
            - name: REDIS
              value: "books-back"
    ---
    apiVersion: v1
    kind: Service
    metadata:
      name: books-front
    spec:
      type: LoadBalancer
      ports:
      - port: 80
      selector:
        app: books-front

一切似乎都很好。但是，当我访问52.168.10.232时，服务没有响应。

Answer 1

从书本前端窗格的日志中，您的应用程序侦听端口5000，但为容器公开了端口80。它导致无法访问。

您只需要进行更改即可在部署books-front和服务books-front中公开端口5000，如下所示：

apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: books-front
spec:
  replicas: 1
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 1
  minReadySeconds: 5 
  template:
    metadata:
      labels:
        app: books-front
    spec:
      nodeSelector:
        "beta.kubernetes.io/os": linux
      containers:
      - name: books-front
        image: bookservice.azurecr.io/books-front:v1
        ports:
        - containerPort: 5000
        resources:
          requests:
            cpu: 250m
          limits:
            cpu: 500m
        env:
        - name: REDIS
          value: "books-back"
---
apiVersion: v1
kind: Service
metadata:
  name: books-front
spec:
  type: LoadBalancer
  ports:
  - port: 80
    targetPort: 5000
  selector:
    app: books-front

无法通过公用IP访问在Azure Kubernetes服务上部署的我的服务

1 个答案: