#$ echo '127.0.0.1 hellok8s.foo.com' >> /etc/hosts
#$ curl hellok8s.foo.com:31504/hello

#  [v3] Hello, Kubernetes!, From host: hellok8s-go-http-6df8b5c5d7-ll82f

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: hellok8s-ingress
spec:
  ingressClassName: nginx  # 指定ingress控制器
  rules:
    - host: hellok8s.foo.com # 一旦配置了host，就不能再通过IP访问（会得到404结果）
      http:
        paths:
          - path: /hello
            pathType: Prefix
            backend:
              service:
                name: service-hellok8s-clusterip
                port:
                  number: 3000