从外部访问kubernetes服务 [英] Access kubernetes service externally

问题描述

我正在关注spring和kubernetes集成教程:

I'm following the spring and kubernetes integration tutorial:

https://spring.io/guides/gs/spring-boot-kubernetes/

在当前情况下，我有1个主服务器和2个工作服务器.

In my current scenario, I have 1 master and 2 workers servers.

当我使用命令 kubectl apply -f deployment.yaml 部署以下文件时，我可以使用 kubectl port-forward svc/demo 8080从主服务器内发出请求:8080 和 curl localhost:8080/actuator/health .

When I deploy the file below using the command kubectl apply -f deployment.yaml, I can make a request from within the master server using kubectl port-forward svc/demo 8080:8080 and curl localhost:8080/actuator/health.

我想要做的是一个外部请求(一台公用计算机-我的计算机)来访问我创建的服务( kubernetes_master_ip:8080/actuator )，但是当我尝试这样做时，我得到了连接被拒绝".

What I want to do is an external request (a public computer - my computer) to access the service that I created (kubernetes_master_ip:8080/actuator), but when I try this, I get "connection refused".

缺少什么?

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: demo
  name: demo
spec:
  replicas: 1
  selector:
    matchLabels:
      app: demo
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: demo
    spec:
      containers:
      - image: springguides/demo
        name: demo
        resources: {}
status: {}
---
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: null
  labels:
    app: demo
  name: demo
spec:
  ports:
  - name: 8080-8080
    port: 8080
    protocol: TCP
    targetPort: 8080
  selector:
    app: demo
  type: ClusterIP
status:
  loadBalancer: {}

推荐答案

您需要更改服务类型以公开应用程序.有两种方法:-LoadBalancer类型:(仅适用于云提供商)-NodePort类型:可以在本地或微型kube中完成.

You need to change the type of service to expose the application. There are two ways: - LoadBalancer type: (Only on cloud providers) - NodePort type: Can be done on-premise or minikube.

将您的服务Yaml更改为以下内容:

Change your service yaml to below:

apiVersion: v1
kind: Service
metadata:
  labels:
    app: demo
  name: demo
spec:
  ports:
  - name: 8080-8080
    port: 8080
    nodePort: 31234
    protocol: TCP
    targetPort: 8080
  selector:
    app: demo
  type: NodePort

服务一旦执行.检查在其上创建容器的应用程序节点IP.

Once the service is executed. check the application Node IP on which container is created.

kubectl get pods -o wide

然后尝试通过以下位置访问该应用程序: http://node_ip:31234/actuator

then try to access the application at: http://node_ip:31234/actuator

这篇关于从外部访问kubernetes服务的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！