在 kubernetes 上创建 Ingress 服务以将 springboot [后端] 连接到前端 [angular]

假设你有一个针对你的Angular 应用程序的服务，如下所示:

apiVersion: v1
kind: Service
metadata:
  name: your-angular-app
  namespace: dev
spec:
  selector:
    app: your-angular-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
      name: http

并在相同的名称空间中为您的Spring Boot应用程序提供如下服务:

apiVersion: v1
kind: Service
metadata:
  name: your-spring-app
  namespace: dev
spec:
  selector:
    app: your-spring-app
  ports:
    - protocol: TCP
      port: 80
      targetPort: 80
      name: http

确保您的部署(或用于在集群中实际创建应用程序实例的任何东西)具有匹配的标签.部署示例:

apiVersion: apps/v1
kind: Deployment
metadata:
  name: your-spring-app
  namespace: dev
spec:
  replicas: 1
  selector:
    matchLabels:
      app: your-spring-app # <- this must match the spec.selector.app in the service

假设您的Spring应用程序提供了所有带有/api前缀的API端点，您可以使用如下所示的Inress:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: your-ingress
  namespace: dev
spec:
  rules:
    - host: your-site.com
      http:
        paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: your-angular-app
                port:
                 name: http
          - path: /api
            pathType: Prefix
            backend:
              service:
                name: your-spring-app
                port:
                 name: http

在云环境中，您很可能需要在Inress上添加额外的注释，如Inress类，但这些信息可以在云Provider 的文档中找到.