无法从浏览器访问kubernetes NodePort服务

Question

我在 AWS EC2 上通过 Minikube 在 Kubernetes 上进行练习。作为其中的一部分，我创建了 deployment 并通过 NodePort 服务公开了它，然后检查了：

curl http://<node-ip>:<service-port>

在 EC2 机器中运行良好。但是当我在浏览器上点击相同的 URL 时，给了我：

This site can't be reached

谁能帮我解决问题，我该如何访问它？

谢谢。

这是我的部署 YAML 文件：


apiVersion: apps/v1
kind: Deployment
metadata:
  name: myfirstdeployment
  labels:
    app: web
spec:
  replicas: 1
  selector:
    matchLabels:
      app: web
  template:
    metadata:
      name: myfirstpod
      labels:
        app: web
    spec:
      containers:
      - name: myfirstpod-1
        image: nginx
        command: ["sleep","3600"]
        ports:
        - containerPort: 80

这是我的服务 YAML 文件


apiVersion: v1
kind: Service
metadata:
  name: myfirstservice
spec:
  selector:
    app: web
  ports:
  - targetPort: 80 #target container's port
    port: 80 #service port
    nodePort: 30030 #node port that we access to
  type: NodePort

Answer 1

我强烈建议阅读显示 Minikube 中 Accessing apps 选项的官方教程：

How to access applications running within minikube There are two major categories of services in Kubernetes:

NodePort

LoadBalancer

minikube supports either. Read on!

在那里你会找到如何使用两者，NodePort access:

A NodePort service is the most basic way to get external traffic directly to your service. NodePort, as the name implies, opens a specific port, and any traffic that is sent to this port is forwarded to the service.

注意这里必须使用minikube ip。

还有 LoadBalancer access:

A LoadBalancer service is the standard way to expose a service to the internet. With this method, each service gets its own IP address.

此方法使用minikube tunnel命令。

也可以用these docs作为补充。

无法从浏览器访问kubernetes NodePort服务

Unable to access kubernetes NodePort service from browser

kubernetes

minikube

kubernetes-service