库伯内特斯服务节点不工作

Question

我在windows 10中创建了两个在我的minikube环境中运行的POD。一个POD带有Spring boot应用程序容器，另一个POD带有mysql容器。对于Spring boot应用程序，服务类型为nodePort，对于MYSQL pod，服务类型为club sterIP。这意味着Mysql pod只需要在集群内部进行通信。但是对于Spring boot应用程序，需要从浏览器访问，所以我配置了NodePort。

我为节点端口配置了 30096。但我检查了我的浏览器（迷你库贝ip：节点端口）。它不起作用。所以我尝试执行命令“minikube服务服务名称”，输出显示一个不同的端口（59870）

MYSQL_DEPLOYMENT_YML：

    apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
  name: bcp-mysql
  labels:
    app: bcp-mysql
spec:
  selector:
    matchLabels:
      app: bcp-mysql
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: bcp-mysql
    spec:
      containers:
      - image: <myrepo>/mysql:5.7
        name: mysql
        env:
          - name: MYSQL_ROOT_PASSWORD
            value: password
          - name: MYSQL_DATABASE
            value: database
          - name: MYSQL_USER
            value: root
          - name: MYSQL_PASSWORD
            value: password
        ports:
        - containerPort: 3306
          name: mysql
        imagePullPolicy: Always
        volumeMounts:
        - name: mysql-persistent-storage
          mountPath: /var/lib/mysql
      volumes:
      - name: mysql-persistent-storage
        persistentVolumeClaim:
          claimName: mysql-pv-claim
      imagePullSecrets:
        - name: regcred
---
apiVersion: v1
kind: Service
metadata:
  name: bcp-mysql
spec:
  selector:
    app: bcp-mysql
  ports:
    - port: 3306
      targetPort: 3306
  type: ClusterIP
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: mysql-pv-claim
  labels:
    app: bcp-mysql
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 2Gi

Spring_boot_deployment.yml:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: bcpdashboard
  labels: 
    app: bcpdashboard
spec:
  replicas: 1
  selector:
    matchLabels:
      app: bcpdashboard
  template:
    metadata:
      labels:
        app: bcpdashboard
    spec:
      containers:
        - name: app
          image: <myrepo>/bcpdashboard:latest
          ports:
            - containerPort: 9097
          imagePullPolicy: Always
          env:
          - name: SPRING_DATASOURCE_URL
            value: jdbc:mysql://bcp-mysql:3306/bcp?autoReconnect=true&useSSL=false
      imagePullSecrets:
        - name: regcred
---

apiVersion: v1  
kind: Service  
metadata:  
  name: bcpdashboard  
spec:
  selector:
    app: bcpdashboard
  ports:
    - port: 9097
      targetPort: 9097
      nodePort: 30096
  type: NodePort
---

我的minikube ip仅为本地主机ip。所以我试着跑(http://127.0.0.1:30096). 它不起作用。所以我尝试执行“minikube服务bcpdashboard”

任何人都面临同样的问题

Answer 1

似乎该行为是特定于您的minikube设置的，在我的设置中使用您的部署yaml，所有功能都如其所述，即只有< code > curl http://127 . 0 . 0 . 1:30096/响应w/ 200。

我用helloworld-http作为镜像，k8s 16 w/ docker-desktop 2.3。部署yaml看起来是这样的:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: bcpdashboard
  labels:
    app: bcpdashboard
spec:
  replicas: 1
  selector:
    matchLabels:
      app: bcpdashboard
  template:
    metadata:
      labels:
        app: bcpdashboard
    spec:
      containers:
        - name: app
          image: strm/helloworld-http
          ports:
            - containerPort: 80
          imagePullPolicy: Always
          env:
          - name: SPRING_DATASOURCE_URL
            value: jdbc:mysql://bcp-mysql:3306/bcp?autoReconnect=true&useSSL=false
      imagePullSecrets:
        - name: regcred
---

apiVersion: v1
kind: Service
metadata:
  name: bcpdashboard
spec:
  selector:
    app: bcpdashboard
  ports:
    - port: 80
      targetPort: 80
      nodePort: 30096
  type: NodePort
---

您是否尝试过使用docker-windows-desket-kubernetes？您可以尝试一下，它至少会为您隔离问题。