ingress-hellok8s-regex.yaml

# $ curl 127.0.0.1:31504/hello/now_time
#   [v3] Hello, Kubernetes!, now time: 2023-10-29 14:42:58.419522481 +0800 CST m=+36.879122145
# $ curl 127.0.0.1:31504/hello/
#   [v3] Hello, Kubernetes!, From host: hellok8s-go-http-6df8b5c5d7-ll82f

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: hellok8s-ingress
  annotations: # 键值对形式的注解 可以进一步配置控制器的行为，比如rewrite路由、强制https等
    # nginx ingress提供的注解选项：https://kubernetes.github.io/ingress-nginx/examples/rewrite/#deployment
#    nginx.ingress.kubernetes.io/ssl-redirect: "false"  # 禁用https重定向到http，若ingress配置了证书则默认true

    # 若要路径支持正则匹配，需要配置下面两个注解
    nginx.ingress.kubernetes.io/use-regex: "true"
    nginx.ingress.kubernetes.io/rewrite-target: /$1  # 可选，若路径被带括号的正则表达式匹配，则转发后的路径为 第一个路径分组，若不匹配，则不重写
spec:
  ingressClassName: nginx  # 指定ingress控制器
  rules:
    - http:
        paths:
          - path: /hello/(.*) # 正则匹配，括号内的内容为一个分组
            pathType: Prefix
            backend:
              service:
                name: service-hellok8s-clusterip
                port:
                  number: 3000